SELECTION OF TRANSMISSION NETWORK CONFIGURATION FOR TRINCOMALEE POWER PLANT GRID CONNECTION - TECHNICAL AND FINANCIAL FEASIBILITY STUDY FOR 220kV/400kV CONFIGURA TIONS G.P. Senanayake A dissertation submitted to the Department of Electrical Engineering, University of Moratuwa in partial fulfillment of the requirements for the Degree of Master of Science Department of Electrical Engineering University of Moratuwa, Sri Lanka 94844 July 2010 Abstract According to the Long Term Generation Expansion Plan 2009-2022 published by the transmission and Generation Planning Branch of Ceylon electricity Board there will be I our 250MW and I our 300MW coal plant units in Trineomalee area by the year2020. Therefore a necessity Has arisen for identify, plan and formulaic the transmission grid connection for the above mentioned coal fired power plants. Because of the large quantity of power which has to be transmitted from the proposed trineomalee Power Station it has been decided to investigate the possibility of utilizing 400kV as the transmission voltage against the present practice of transmitting power using 220kV. Detailed power system analysis consisting of load flow and stability studies were conducted under night peak and day peak loading conditions to identify areas where the planning criteria were violated using the Power System Simulator for Engineering' (PSS1-) software package. Conclusions of the most feasible transmission network configuration for power plant-grid connection were drawn based on all the above power system analysis results, economic analysis results and other concerns. Saudis were conducted for year 2016 based on the "Long Term Transmission Development Plan 2008-2016* and for year 2020 based on the Master Plan Study on the Development of Power Generation and Transmission System in Sri Lanka -January 2006. It is possible to identify 220kV and 400kV transmission network configurations, which are capable of successfully transmitting 2200MW power generated at trineomalee Power Plant in year 2020. But the 220kV configuration is economically viable with compare to 400kV configuration for trineomalee Power Plant Grid Connection. By considering all the advantages and disadvantages of selected 220kVand 400kV transmission network configurations, it is recommended that 220kVconfiguration be used as the trineomalee Coal Fired Power Plant Grid Connection. D e c l a r a t i o n l h e \ \ o r k s u b m i t t e d i n t h i s d i s s e r t a t i o n i s t h e r e s u l t o f m y o w n i m e s t i g a t i o n . e x c e p t w h e r e o t h e n v i s e s t a t e d . 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J I C A L C L K R L T G E P P S P S S / E T F T L S R s s S / B C S R 3 P F A b b r e v i a t i o n s B r e a k e r S w i t c h e d C a p a c i t o r C i r c u i t C e ) I o n r : l e c t r i c i t y B o a r d D o u b l e B u s B a r F e e d e r B a y s F o r e i g n C o s t ( i e n e r a t o r B a Y s C i a s I n s u l a t e d S w i t c h g e a r C ! r i d S u b s t a t i o n J a p a n I n t e r n a t i o n a l C o o r e r a t i o n J \ g e n C ) L o c a l C o s t S r i l , a n k a n R u p e e s L o n g T e r m G e n e r a t i o n E x p a n s i o n P l a n P m \ e r S Y s t e m f \ m e r S y s t e m S i m u l a t o r C o r E n g i n e e r i n g l r a n s t c m n e r r r a n s m i s s i o n L i n e S u c c e s s f u l R e c l o s i n g S y s t e m S t a b l e / S w i t c h i n g S t a t i o n S i n g l e B u s B a r t ' n s u c c e s s r ' u l R e c l o s i n g T h r e e P h a s e F a u l t , , l l C o n t e n t s D e c l a r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i 1 \ h h r c \ · i a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i i ( ' o n t c n t s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i i i , L \ h s t r a c t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v i ; \ c k n o \ Y l e d g e r n c n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v i i L i s t o f F i g u r e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v i i i L i s t o f T a b l e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i x L i s t o f A n n e x e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x i I . 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X F i n a l 2 2 0 k V T r a n s m i s s i o n ' - J d \ \ o r k C o n f i g u r a t i o n f o r y e a r 2 0 1 6 . . . . . . . . . . . . . . . 2 2 3 . S e l e c t i o n o f T r i n e o m a l e e P o w e r P l a n t G r i d C o n n e c t i o n f o r y e a r 2 0 2 0 . . . . . . . . . . . . 2 - t .~.1 S e l e c t e d 2 2 0 k V a n d 4 0 0 k V T r a n s m i s s i o n ' \ e t \ \ o r k ( ' o n f i g u r a t i o n s f o r ) c a r 2 ( J 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 ~.1.1 2 2 0 k V T r a n s m i s s i o n ' \ e t \ \ o r k C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4 ~.1 2 4 0 0 k V T r a n s m i s s i o n ' \ e t \ \ o r k C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 7 . L 2 ~lead) S t a t e A n a l y s i s o f t h e S e l e c t e d T r a n s m i s s i o n \ i e m o r k C o n t i g u r a t i o n s t ( x : e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 ~.2.1 S t e a d y S t a t e A n a l y s i s o f 2 2 0 k . V T r a n s m i s s i o n : \ L ' l \ \ o r k C o n f i g u r a t i o n 1 I • • • • • • • • • 0 • • • 0 • • • • • • • • • • • ' • • • • • • • • • • • • • • • • • • • • • • • • 0 . 0 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • - -~.2.2 S t e a d ) S t a t e . \ n a l : s i s o f 4 0 0 k V T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 3 2 1.~ l r a n s i e n t S t a h i l i t \ ; \ n a h : , i s o t · t h e S e l e c t e d T r a n s m i s s i o n : \ e t \ \ o r k ( ' o n i i g u r a t i o n s f o r y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . : . _ . , . . . . : : . . . . ~.,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 I , • , l \ ' . : } 3 . 3 . 1 T r a n s i e n t S t a h i l i t y A n a l y s i s o f 2 2 0 k V T r a n s m i s s i o n N e t w o r k ( ' o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 3 . 3 . 2 T r a n s i e n t S t a h i l i t ) A n a l y s i s o r 4 0 0 k V T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 3 . 4 E c o n o m i c A n a l y s i s o f t h e S e l e c t e d T r a n s m i s s i o n \ c t \ \ o r k C o n f i g u r a t i o n s 3 5 1 . 4 . 1 B a s e C o s t L s t i m a t i o n o f 2 2 0 k V T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 . 1 . 4 . 2 B a s e C o s t E s t i m a t i o n o f 4 0 0 k V T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 3 . 4 . 3 D i s h u r s e m c n t S c h e d u l e s a n d T o t a l C o s t E s t i m a t i o n o f t h e S e l e c t e d 2 2 0 k V T r a n s m i s s i o n l \ e t \ v o r k C o n f i g u r a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 3 A A D i s h u r s e m e n t S c h e d u l e s a n d T o t a l C o s t E s t i m a t i o n o r t h e S e l e c t e d 4 0 0 k V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 9 3 A . 5 E c o n o m i c E \ a l u a t i o n o f T r a n s m i s s i o n \ ' e t \ \ o r k C o n f i g u r a t i o n s f o r y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 9 - l . ( ' o n c l u s i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 H . c f c r c n c c s : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1 A . n n e x e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 A c k n o w l e d g e m e n t F i r s t a n d f o r e m o s t l o f f e r m y s i n c e r e s t g r a t i t u d e t o m : s u p c n i s o r s . P r o f c s s u r R o h a n L u c a s a n d F n g . W . D . A . S . W i j a y a p a l a . \ \ h o h a d s u p p o r t e d m e b y s t i m u l a t i n g s u g g e s t i o n s a n d e n c o u r a g i n g t h r o u g h u u t m y d i s s e r t a t i o n \ \ i t h t h e i r p a t i e n c e a n d k n o w l e d g e . A l s o m y t h a n k s s h o u l d g o t o D r . J . P . K a r u n a d a s a . H e a d o f t h e D e p a r t m e n t o f E l e c t r i c a l E n g i n e e r i n g . a n d t h e o t h e r m e m b e r s o f t h e a c a d e m i c s t a f f o f t h e D e p a r t m e n t o f E l e c t r i c a l E n g i n e e r i n g . f o r t h e i r v a l u a b l e s u g g e s t i o n s a n d c o m m e n t s . I n a d d i t i o n l \ \ O u l d l i k e t o t h a n k t h e o f f i c e r s i n P o s t G r a d u a t e O f f i c e o f t h e F a c u l t v o f E n g i n e e r i n g o f l n i v c r s i t y o f . Y f o r a t u w a f o r h e l p i n g i n \ a r i o u s \ \ a y s t o c l a r i t ) t h e t h i n g s r e l a t e d t o m y a c a d e m i c v v o r k s i n t i m e \ \ i t h e x c e l l e n t c o o p e r a t i o n a n d g u i d a n c e . S i n c e r e g r a t i t u d e i s a l s o e x t e n d e d t o t h e p e o p l e \ \ h o s e r v e i n t h e D e p a r t m e n t o f E l e c t r i c a l E n g i n e e r i n g o f f i c e . E s p e c i a l ! ; l m u s t h e t h a n k f u l \ ' e r y m u c h t o m y c o l l e a g u e s i n t h e T r a n s m i s s i o n P l a n n i n g b r a n c h o f C e y l o n E l e c t r i c i t y B o a r d f o r p r o \ i d i n g a s s i s t a n c e i n n u m e r o u s \ \ a y s t o c a r r ; o u t t h e s t u d i e s o f t h e p r o j e c t . I e x p r e s s m y t h a n k s a n d a p p r e c i a t i o n t o m y t~unil) f o r t h e i r u n d e r s t a n d i n g . m o t i v a t i o n a n d p a t i e n c e . l . a s t l y . b u t i n n o s e n s e t h e l e a s t . I a m t h a n k f u l t o a l l c o l l e a g u e s a n d f i · i c n d s t ( J r g i v i n g t h e i r f u l l e s t c o - o p e r a t i o n t h r o u g h o u t t h e t i m e o f r e s e a r c h a n d v H i t i n g o f t h i s d i s s e r t a t i o n . . . \ I I L i s t o f F i g u r e s F i g u r e . 2 . 1 T r i n c o m a l c c C o a l P o v \ C r P l a n t G r i d C o n n e c t i o n A c c o r d i n g t o t h e · · L o n g T e r m T r a n s m i s s i o n D e \ e l o p m e n t P l a n 2 0 0 8 - 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 F i g u r e 2 . . 2 ~et\\ork w i t h t h e n e \ \ L o a d s o f ~orthern P r o \ i n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0 F i g u r e . 2 . 3 T r i n c o m a l e e C o a l P m \ e r P l a n t G r i d C o n n e c t i o n - \ V i t h o u t K i r i n d i \ \ e l a S w i t c h i n g S t a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I I F i g u r e 2 . 4 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n ' ' i t h o u t ' \ e ' v \ I l a b a r a n a S \ \ i t c h i n g S t a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 F i g u r e 2 . 5 F i n a l t r a n s m i s s i o n n e t w o r k c o n f i g u r a t i o n f o r y e a r . 2 0 1 6 s y s t e m f o r T r i n c o m a l e e P o w e r P l a n t g r i d c o n n e c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 3 F i g u r e 3 . 1 2 2 0 k V t r a n s m i s s i o n n c t \ \ O r k c o n f i g u r a t i o n o r T r i n c o m a k e C o a l P O \ \ C r P l a n t G r i d C o n n e c t i o n A c c o r d i n g t o t h e : V t a s t c r P l a n S t u d _ : : , . . . . . . . . . . . . . . . . . . . . . 2 5 F i g u r e 3 . 2 T h e p r o p o s e d 2 2 0 k V t r a n s m i s s i o n n e t \ v o r k c o n f i g u r a t i o n o f T r i n c o m a l c c C o a l P o w e r P l a n t G r i d C o n n e c t i o n f o r y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6 F i g u r e 3 . 3 R e l a t i \ e R o t o r A n g l e \ a r i a t i o n . f o l k m i n g a t h r e e - p h a s e s h o r t c i r c u i t f a u l t i n o n e c i r c u i t o f t h e - t O O k V t h r e e - c i r c u i t - J . x / e b r a t r a n s m i s s i o n l i n e b e t w e e n T r i n c o m a l e e P S a n d V e y a n g o d a G S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 8 F i g u r e 3 . - J . T h e p r o p o s e d 4 0 0 k V t r a n s m i s s i o n n e t w o r k c o n f i g u r a t i o n o f T r i n c o m a l c c C o a l P m \ e r P l a n t G r i d C o n n e c t i o n f o r y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 9 \ I l l L i s t o f T a b l e s I a b l e 2 . 1 B a s e C o s t E s t i m a t i o n o f I n i t i a l T r a n s m i s s i o n \ J e t \ \ O r k C o n f i g u r a t i o n i n y e a r 2 0 1 6 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 T a b l e 2 . 2 T o t a l C o s t b t i m a t i o n o r I n i t i a l T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n i n y e a r 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 T a b l e 2 J A d d i t i o n a l I . o a d s o f 2 0 1 6 P o \ \ e r S Y s t e m i n L i b e r a t e d A r e a s o f \ ' o r t h e r n P r o v i n c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I . . . J . T a b l e 2 . 4 T r a n s m i s s i o n l o s s e s \ \ i t h a n d \ \ i t h o u t K i r i n d i , \ e l a S w i t c h i n g S u b s t a t t o n 1 . . . J . T a b l e 2 . 5 C o n t i n g e n c y R e s u l t s f o r T r a n s m i s s i o n : \ e t w o r k s w i t h a n d w i t h o u t K i r i n c l i w e l a S S - : \ i g h t P e a k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5 T a b l e 2 . 6 C o n t i n g e n c y R e s u l t s f o r T r a n s m i s s i o n ' \ e t \ \ o r k s \ \ i t h a n d \ \ i t h o u t K i r i n d i \ \ e l a S S - D a y P e a k . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5 ! a b l e 2 . 7 T r a n s m i s s i o n L o s s e s \ V i t h a n d \ \ i t h o u t : \ c \ \ H a b a r a n a S w i t c h i n g S u b s t a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 I a h l e 2 . 8 V o l t a g e Y i o l a t i o n s \ \ i t h o u t ' \ e \ \ H a b a r a n a S S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 6 T a b l e 2 . 9 C o n t i n g e n c y R e s u l t s C o r I ' r a n s m i s s i o n : \ e t \ \ o r k s \ \ i t h o u t : \ e \ v H a h a r a n a S S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7 I a b l e 2 . 1 0 B a s e C o s t E s t i m a t i o n o f T r a n s m i s s i o n : \ e t \ v o r k C o n f i g u r a t i o n - \ \ i t h o u t K i r i n d i w e l a S S i n ) e a r 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 7 ~ , t b l c 2 . 1 1 T o t a l C o s t E s t i m a t i o n o r T r a n s m i s s i o n ' \ c t w o r k C o n J i g u r a t i o n - \ \ i t h o u t K i r i n c l i \ v c l a S S i n y e a r 2 0 1 6 i n y e a r 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 8 T a b l e 2 . 1 2 B a s e C o s t ! ; s t i m a t i o n o f T r a n s m i s s i o n : \ c t \ \ o r k ( ' o n t i g u r a t i o n - \ \ i t h o u t : \ e \ \ H a h a r a n a S S i n : c a r 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I 9 1 a b l e 2 . 1 3 T o t a l C o s t E s t i m a t i o n o f T r a n s m i s s i o n : \ e t \ \ O r k C o n f i g u r a t i o n - \ \ i t h o u t ' \ e \ \ H a b a r a n a S S i n y e a r 2 0 1 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 9 I a b l e 2 I . . . J . I r a n s i e n t S t a b i l i t y A n a l y s i s R e s u l t s o f T r i n c o m a l e e C o a l P o \ \ e r P l a n t ( ! r i d C o n n e c t i o n · W i t h a n d W i t h o u t K i r i n d i \ \ c l a S \ \ i t c h i n g S t a t i o n . . . . . . . . . . . . . . . . . 2 1 1 able~.! A l l o w a b l e \ O l t a g e \ a r i a t i o n s . J I ! a b l e 3 . 2 V o l t a g e L e \ c l s a n d l o a d i n g C o n d i t i o n s a l t e r o u t a g e o f c r i t i c a l 2 2 0 k V l r a n s m i s s i o n L i n e s o f s e k c t e d 2 2 0 k V C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Table~ . . ~ V o l t a g e l.C\el~ a n d L o a d i n g C o n d i t i o n s a l t e r o u t a g L ' o f c r i t i c a l 2 2 0 k V a n d 4 0 0 k V T r a n s m i s s i o n l . i n e s o f s e l e c t e d . . . J . O O k V C o n f i g u r a t i o n . . . . . . . . . . . . . . . . . . . . . . J ] 1 . \ T a b l e 3 . 4 T r a n : : , i e n t S t a b i l i t y A n a l y s i s R e s u l t s o f S e l e c k d 2 2 0 k V I r a n s m i s s i o n \ : e t \ \ o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . f f a b l e 3 . 5 T r a n s i e n t S t a b i l i t y A n a l y s i s R e s u l t s o t ' S e l e c t e d 4 0 0 k V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 5 T a b l e 3 . 6 B a s e C o s t E s t i m a t i o n o f S e l e c t e d 2 2 0 k V T r a n s m i s s i o n : \ e t \ \ o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 T a h l e 3 . 7 B a s e C o s t L s t i m a t i o n o f S e l e c t e d 4 0 0 k V l r a n s m i s s i o n : \ e t \ v o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 T a h l e 3 . 8 T o t a l C o s t b t i m a t i o n o f S e l e c t e d 2 2 0 k V l ' r a n s m i s s i u n : \ e t w o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 8 T a b l e 3 . 9 T o t a l C o s t h t i m a t i o n o f S e l e c t e d 4 0 0 k V T r a n s m i s s i o n : \ c t w o r k C o n t i g u r a t i o n o f y e a r 2 0 2 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 9 f a b l e 3 . I 0 C a l c u l a t i o n o r P r e s e n t V a l u e o f L o s s S a v i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . f 2 T a b l e 3 . 1 1 C a l c u l a t i o n o f P r e s e n t V a l u e o f E x p e n d i t u r e s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 ! a b l e 3 . 1 2 C a l c u l a t e d L o a d F a c t o r v a l u e s a n d c o r r e s p o n d i n g C o s t s a v i n g c a l c u l a t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6 " L i s t o f A n n e x e s A n n e x A - 1 2 0 2 0 T r a n s m i s s i o n : \ e t \ \ o r k w i t h 2 2 0 k V T r i n c o m a l c e ! \ m e r P l a n t G r i d C o n n e c t i o n C o n f i g u r a t i o n ( \ : i g h t P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 A n n e x A - 2 2 0 2 0 T r a n s m i s s i o n : \ e t ' v \ O r k \ \ i t h 4 0 0 k V T r i n c o m a l e e Pom~r P l a n t G r i d C o n n e c t i o n C o n f i g u r a t i o n ( \ : i g h t P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 A n n e x A - 3 R o t o r a n g l e v a r i a t i o n f o l l o w i n g a t h r e e - p h a s e s h o r t c i r c u i t f~wlt i n o n e c i r c u i t o f t h e 2 2 0 k V f c 1 u r - c i r c u i t 4 x 7 c b r a t r a n s m i s s i o n l i n e b e t w e e n T r i n c o m a l c e P S a n d : \ e \ \ I l a b a r a n a S S . ( 2 2 0 k V \ : e m o r k . \ C a r 2 0 2 0 . ! \ i g h t . ~ P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , 5 5 A n n e x A - 4 R o t o r a n g l e \ a r i a t i o n C o l l e m i n g a t r i p p i n g o f o n e 3 0 0 \ ! l W u n i t a t T r i n c o m a l c c p o ' v \ C r s t a t i o n . ( 2 2 0 k V : \ c t w o r k . y e a r 2 0 2 0 . : \ i g h t P e a k ) . . . . 5 6 A n n e x A - 5 R o t o r a n g l e v a r i a t i o n C o l l m v i n g a t h r e e p h a s e s h o r t c i r c u i t t~tult i n o n e c i r c u i t o f t h e 2 2 0 k V t w o c i r c u i t 4 x Z e h r a t r a n s m i s s i o n l i n e h c t \ \ C c n : \ e w I l a b a r a n a S S a n d V e y a n g o c ! a C J S . . ( 2 2 0 k V : \ e t \ \ o r k . y e a r 2 0 2 0 . : \ i g h t P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7 A n n e x ! \ - 6 R o t o r a n g l e \ a r i a t i o n f o l k m i n g a t h r e e - p h a s e s h o r t c i r c u i t b u l t i n o n e c i r c u i t o t ' t h e 2 2 0 k V f o u r - c i r c u i t 4 x Z e h r a t r a n s m i s s i o n l i n e b e t w e e n T r i n c o m a l c c P S a n d : \ e \ \ H a b a r a n a S S . ( 2 2 0 k V : \ e t \ \ O r k . y e a r 2 0 2 0 . D a y P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 A n n e x A - 7 R o t o r a n g l e \ a r i a t i o n f o l l m \ i n g a t h r e e p h a s e s h o r t c i r c u i t t~wlt i n o n e c i r c u i t o f t h e 2 2 0 k V t w o c i r c u i t 4 x 7 c b r a t r a n s m i s s i o n l i n e b e t \ \ e e n : \ e \ \ l l a h a r a n a S S a n d V e y a n g o d a C I S . ( 2 2 0 k V : \ e t \ \ o r k . y e a r 2 0 2 0 . D a y P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 i \ n n e x ; \ - X R o t o r a n g l e \ a r i a t i o n f o l l m \ i n g a t h r e e - p h a s e s h o r t c 1 r c u i t t ' a u l t i n o n e c i r c u i t o f t h e 2 2 0 k V f o u r - c i r c u i t 4 x / c b r a t r a n s m i s s i o n l i n e b e t w e e n T r i n c o m a k e P S a n d : \ e \ \ H a h a r a n a S S . ( 4 0 0 k V : \ c m o r k . y e a r 2 0 2 0 . : \ i g h t P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 0 A n n e x ; \ - 9 R o t o r a n g k ' a r i a t i o n f o l l c m i n g a t r i p p i n g o f o n e 3 0 0 \ 1 \ \ u n i t a t T r i n c o m a l c e r H m e r s t a t i o n . ( 4 0 0 k V : \ c t w o r k . y e a r 2 0 2 0 . : \ i g h t P e a k ) . . . . 6 1 A n n e x ; \ - 1 0 R o t o r a n g l e \ a r i a t i o n f o l l O \ v i n g a t h r e e p h a s e s h o r t c i r c u i t f~llllt i n o n e c i r c u i t o f t h e 2 2 0 k V t \ \ O c i r c u i t 4 x / e b r a t r a n s m i s s i o n l i n e h e t \ \ e e n : \ e \ \ I l a b a r a n a S S a n d V c y a n g o d a G S . ( 4 0 0 k V : \ e t \ \ o t l . : c a r 2 0 2 0 . : \ i g h t P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . · · · > · - - - · , _ · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 6 2 X I · , - : - ' : f A n n e x A - l l R o t o r a n g l e v a r i a t i o n f o l l o w i n g a t h r e e - p h a s e s h o r t c i r c u i t t~wlt i n o n e c i r c u i t o f t h e 2 2 0 k V f o u r - c i r c u i t 4 x / c b r a t r a n s m i s s i o n l i n L ' h e t \ \ e e n T r i n c o m a l e e P S a n d : \ e \ \ H a h a r a n a S S . ( 4 0 0 k V : \ e t \ \ o r k . y e a r 2 0 2 0 . D a : P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 A n n e x ! \ - 1 2 R o t o r a n g l e \ a r i a t i o n f o l l o \ \ i n g a t h r e e p h a s e s h u n c i r c u i t l~llllt i n o n e c i r c u i t o f t h e 4 0 0 k V t \ \ O c i r c u i t 2 x / c b r a t r a n s m i s s i o n l i n e b e t w e e n : \ e \ \ H a h a r a n a S S a n d V c y a n g o d a C 1 S . ( 4 0 0 k V : \ e t \ \ o r k . y e a r 2 0 2 0 . D a ; P e a k ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 A n n e x / \ - 1 3 P l a n n i n g C r i t e r i a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( ) 5 X l l C h a p t e r 1 B a c k g r o u n d a n d S c o p e B a c k g r o u n d . m o t i \ a t i o n s . o b j c c t i w s a n d t h e m c t h o d o l o g : o f t h e s t u d ) a r c d e s c r i b e d i n t h i s c h a p t e r . l . l B a c k g r o u n d ! h e C E B i s t h e n a t i o n a l u t i l i t y r e s p o n s i b l e f o r t h e g e n e r a t i o n . t r a n s m i s s i o n a n d a m a j o r p o r t i o n o r d i s t r i b u t i o n o f e l e c t r i c a l p o w e r i n S r i l . a n k a . T h e d e m a n d f o r e l e c t r i c i t y i n S r i L a n k a i s g r m m a t r a t e o f 5 . 6 8 % p e r a n n u m 1 . 1 1 . ! h e g e n e r a t i n g s o u r c e s a n d p r i m a r y t r a n s m i s s i o n a n d a s s o c i a t e d g r i d s u b s t a t i o n t~1cilities h a \ e t o b e r e - e n f o r c e d a n d s t r e n g t h e n e d i n o r d e r t o m e e t t h i s g n m t h i n d e m a n d . I t i s e s s e n t i a l t o d e v e l o p m e n t a n d s t r e n g t h e n i n g o f t h e t r a n s m i s s i o n s y s t e m h 1 c i l i t i e s t o t r a n s m i t t h e p o w e r g e n e r a t e d a t m a i n g e n e r a t i n g s t a t i o n s s u c h a s T r i n c o m a l e e C o a l F i r e d ! \ m e r P l a n t i n t o t h e m a i n t r a n s m i s s i o n s y s t e m . T h e n e c e s s a r y t r a n s m i s s i o n S ) s t e m r e i n f o r c e m e n t s t o m a i n t a i n a s a t i s f a c t o r y p o \ \ c r s y s t e m p e r f o r m a n c e i n S r i L a n k a a r c i d e n t i f i e d b y t h e d e t a i l e d p o w e r s y s t e m a n a l y s i s c o n d u c t e d d u r i n g t h e L o n g I c r m T r a n s m i s s i o n S y s t e m E x p a n s i o n P l a n n i n g p r o c e s s . C E B c o m p l e t e d : v t a s t e r P l a n S t u d i e s f o r t h e d e w l o p m e n t o r t h e T r a n s m i s s i o n s y s t e m i n S r i L a n k a \ \ i t h t e c h n i c a l a s s i s t a n c e f r o m J a p a n I n t e r n a t i o n a l C o - o p e r a t i o n A g e n c : ( J I C A ) i n J a n u a r y 1 9 9 7 a n d i n J a n u a r : : 2 0 0 6 1 4 ] . L o n g T e r m T r a n s m i s s i o n D e \ c l o p m e n t s t u d i e s a r e c o n d u c t e d < m n u a l l ) . b a s e d o n t h e l a t e s t a \ a i l a b l c : \ a t i o n a l L o a d F o r e c a s t . L o n g l c r m C i e n e r a t i o n f.xpan~iun P l a n a n d \ ! 1 e d i u m V o l t a g e D i s t r i b u t i o n D c \ c l o p m e n t P l a n report~. ( ) u t c o m e o f t h e a h o w s t u d i e s e m p h a s i z e d t h e u r g c n c : o f c o n s t r u c t i n g t h e t r a n s m i s s i o n s y s t e m ~~lCilities o u t l i n e d i n t h i s s t u d ) f o r t h e t r a n s m i s s i o n o r f l O \ \ e r f r o m l r i n c o m a l e e C o a l F i r e d ! \ m e r P l a n t . 1 . 2 P r o b l e m S t a t e m e n t T h e C ' e ) t o n U e c t r i c i t y B o a r d ( C ' F I - 3 ) t r a n s m i s s i o n s y s t e m c o m p r i s e s o f 2 : 2 0 k V a n d 1 . 1 : 2 k V t r a n s m i s s i o n n c t \ \ o r k s . i n t e r c o n n e c t e d t o g r i d substation~ ( C I S ) a n d p m \ c r s t a t i o n s ( P S ) . T h e : 2 2 0 k V t r a n s m i s s i o n s y s t e m i s m a i n ! ) u s e d t o t r a n s m i t p o w e r f i · m n \ l a h m \ e l i h \ d r o p c l \ \ e r g e n e r a t i n g s t a t i o n s n a m e l y K o t m a l e . V i c t o r i a . R a n d c n i g a l a a n d R a n t e m b e t o m a i n l o a d c e n t e r s t h r o u g h K o t u g o d a . P a n n i p i t i y a a n d B i y a g a m a g r i d s u b s t a t i o n s . T h e 1 3 2 k V t r a n s m i s s i o n n e t w o r k i s u s e d t o i n t e r c o n n e c t m o s t o C t h e g r i d s u b s t a t i o n s a n d t o t r a n s f e r p o w e r f r o m o t h e r p O \ \ e r s t a t i o n s . A c c o r d i n g t o t h e · · L o n g · 1 e r m G e n e r a t i o n E x p a n s i o n P l a n 2 0 0 9 - 2 0 2 2 ' " c o a l f i r e d t h e r m a l u n i t s w i l l b e a d d e d t o t h e p o w e r s y s t e m i n C o l l m \ i n g m a n n e r . [ I J • 2 0 1 3 - 2 x 2 5 0 \ 1 \ V T r i n c o C o a l ( s t a g e I ) • 2 0 1 5 · · 2 x 2 5 0 \ 1 W T r i n c o C o a l ( s t a g e 2 ) • 2 0 1 5 - I x 3 0 0 : V 1 W E a s t C o a s t 2 ( s t a g e I ) • 2 0 1 6 · · l x 3 0 0 M W E a s t C o a s t 2 ( s t a g e 2 ) • 2 0 1 7 - 1 x 3 0 0 M \ V E a s t C o a s t 2 ( s t a g e 3 ) • 2 0 1 8 l x 3 0 0 : V 1 W L a s t C o a s t 2 ( " t a g e 4 ) I t h a s h c c n d e c i d e d t h a t t w o s i t e s a l o n g t h e c a s t c o a s t o f S r i L a n k a h e d c n : : l o p e d f o r c o a l t i r e d p O \ \ e r p l a n t . O n e s i t e l o c a t e d a t i h m i l e p o s t o n T r i n c o m a l e e - P u l l m u d a i r o a d ( [ r i n c o C o a l ) i s e x p e c t e d t o c a t e r 1 0 0 0 \ 1 \ \ ' o r 2 5 0 : V 1 W c o a l f i r e d p O \ \ e r p l a n t u n i t s . I t i s a l s o e x p e c t e d a s i t e a t S a m p u r ( E a s t C o a s t 2 ) h e a l l o c a t e d f o r f u r t h e r . . J . x 3 0 0 \ 1 1 \ \ ' u n i t s o r c o a l ! ' i r e d p c m c r p l a n t s u n i t s . B e c a u s e o r t h e l a r g e q u a n t i t y o C p o w e r w h i c h h a s t o b e t r a n s m i t t e d ! ' r o m p r o p o s e d T r i n c o m a l e e p o \ \ e r s t a t i o n s t o l o a d c e n t e r . i t h a s h e e n d e c i d e d t o c o n s i d e r t h e p o s s i b i l i t y o f u t i l i z i n g . . J . O O k V a s t h e t r a n s m i s s i o n \ o l t a g c b e e x p l o r e d a g a i n s t t h e p r c : , c n t p r a c t i c e o f t r a n s m i t t i n g p ( m e r u s i n g 2 2 0 k V a s t h e t r a n s m i s s i o n v o l t a g e . 1 . 3 O b j e c t i v e s T h e m a i n o b j c c t i \ c s o t ' t h e s t u d y a r e . • S e l e c t i o n o f . . J . O O k V a n d 2 2 0 k V t r a n s m i s s i o n n e t \ \ o r k c o n t i g u r a t i o n s f o r [ r i n c o m a l e c ! \ m c r P l a n t C i r i d C o n n e c t i o n f o r \ c a r . 2 0 . 2 0 . • A n a l y s e t h e T e c h n i c a l f e a s i b i l i t y o f u s i n g . . J . O O k V c o n l i g u r a t i o n a g a i n s t t h e 2 2 0 k V c o n f i g m a t i o n a s t h e T r i n c o m a l c c P O \ \ C r P l a n t < r r i d C o n n e c t i o n . • I m e s t i g a t e t h e l c o n o m i c \ i a h i l i t y o f . . J . O O k V a n d . 2 2 0 k V w m s m i s s i o n n d \ \ o r k c o n f i g u r a t i o n s f o r p r o p o s e d T r i n c o m a l c e p O \ \ c r p l a n t ( ! r i d ( ' o n n e c t i o n I 1 . 4 : v l e t h o d o l o g y D e t a i l e J p m v e r S ) s t e m a n a l y s e s c o n s i s t i n g o f l o a d t 1 o v \ a n d s t a b i l i t ) s t u d i e s a r e c o n d u c t e d u n d e r n i g h t p e a k ( 1 9 . 3 0 h o u r s ) a n d d a y p e a k ( 1 1 . 0 0 h o u r s ) l o a d i n g c o n d i t i o n s t o idcntil~ a r e a s w h e r e t h e p l a n n i n g c r i t e r i a a r e \ i o l a t e d . T h e P l m c r S y s t e m S i m u l a t o r f o r 1 : n g i n e e r i n g ( P S S L ) s o f t v v a r e p a c k a g e i s u s e d a s t h e s t u d ) t o o l f o r t h a t p u r p o s e . P S S E p a c k a g e i s c o m p r i s e d o f a c o m p r e h e n s i v e s u i t e o f p r o g r a m s f o r s t u d i e s o f p o w e r s y s t e m t r a n s m i s s i o n n e t w o r k a n d g e n e r a t i o n p e r f o r m a n c e i n b o t h s t e a d y - s t a t e a n d d : n a m i c c o n d i t i o n s . I n a d d i t i o n t o s t e a d y - s t a t e a n d d y n a m i c a n a l y s i : - . . t h e P S S L p a c k a g e a l s o p r o v i d e s t h e u s e r ' v \ i t h a \ \ i d e r a n g e o f a u x i l i a r ) p r o g r a m s f o r i n s t a l l a t i o n . d a t a i n p u t . o u t p u t . m a n i p u l a t i o n a n d p r e p a r a t i o n . T h e m a i n o b j e c t i ' v c o f t h e l o a d t 1 o v v s t u d y i s t o d e t e r m i n e t h e s t e a d y s t a t e p e r f o r m a n c e o f t h e p o w e r S ) s t e m . T h e p o t e n t i a l p r o b l e m s s u c h a s u n a c c e p t a b l e \ o l t a g e c o n d i t i o n s a n d O \ e r l o a d i n g o f t h e t r a n s m i s s i o n n e t w o r k c l e m e n t s a r c i d c n t i f i c d f r o m l o a d t 1 o v \ s t u d i e s . C o n t i n g e n c y a n a l y s i s i s r e q u i r e d t o idcntit~ n e t ' v \ o r k b o t t l e n e c k s d u r i n g e q u i p m e n t f~1ilurc o r u n a \ a i l a b i l i t y . T ' h e s t a b i l i t y s t u d i e s a r e p e r f o r m e d i n o r d e r t o m a k e s u r e t h a t t h e s y s t e m v \ i l l r e m a i n s t a b l e t ( J ] ] m ' v i n g s e v e r e d i s t u r b a n c e . L n d c r s t a b i l i t ' v s t u d i e s t r a n s i e n t b e h a v i o r o t ' t h e S \ s t e m i s o b s c n c d . T o s e l e c t t h e m o s t s u i t a b l e t r a n s m i s s i o n n e t v v o r k c o n f i g u r a t i o n , t e c h n i c a l a s w e l l a s _ c o n o m i c a s p e c t s a r e t a k e n i n t o c o n s i d e r a t i o n . T h e m e t h o d o l o g ) f o l l c m c d i n t h i s s t u d y i s a s f o l l o \ \ S . • R e v i c v \ t h e 2 2 0 k V T r a n s m i s s i o n n c t v \ o r k c o n f i g u r a t i o n o f T r i n c o m a l c c I \ m e r P l a n t C i r i d C o n n e c t i o n p r o p o s e d b ) t h e · L o n g T e r m t r a n s m i s s i o n D e v e l o p m e n t P l a n 2 0 0 8 - 2 0 1 6 · . • I d e n t i f i c a t i o n o f 2 2 0 k V T r a n s m i s s i o n n c t v \ o r k c o n f i g u r a t i o n for~, r i n c o m a l c e P o w e r P l a n t g _ r i d c o n n e c t i o n f o r y e a r 2 0 2 0 • l d c n t i i i c a t i o n o f - 1 - 0 0 k V T r a n s m i s s i o n n c l \ \ o r k c o n t i g u r a t i o n t ( x 1 r i n c o m a l c e l \ m c r P l a n t g r i d c o n n e c t i o n C o r ) c a r 2 0 2 0 • S t e a d \ s t a t e a n a l ) s i s . t r a n s i e n t s t a b i l i t \ a n a l v s i s a n d e c o n o m i c a n a l v s i s a r e u s e d t o ' - t u d : t h e a d v a n t a g c s a n d d i s a d v a n t a g l ' S o f t h e c o n f i g u r a t i o n s . • ( ' o n c l u s i o n s o f t h e m o s t f e a s i b l e c o n f i g u r a t i o n f o r p o w e r p l a n t g r i d c o n n e c t i o n a r c d r a \ \ n h a s c d o n a l l t h e s t u d : r e s u l t s . ~ _ 1 C h a p t e r 2 R e v i e \ v o f T r i n c o m a l e e P o w e r P l a n t G r i d C o n n e c t i o n f o r v e a r 2 0 1 6 . · · L o n g T e r m T r a n s m i s s i o n D e \ c l o r m e n t P l a n 2 0 0 X - 2 0 1 6 . . I 2 1 r r o p o s e d 2 2 0 k v t r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n f o r · 1 r i n c o m a l e e r m \ c r p l a n t ( i r i d C o n n e c t i o n t o t r a n s m i t 1 6 0 0 M ~' o f p o w e r i n y e a r 2 0 1 6 . I h e m a i n o b j e c t i \ e o f t h i s s t u d y i s t o s e l e c t t h e m o s t f e a s i b l e t r a n s m i s s i o n c o n f i g u r a t i o n f o r y e a r 2 0 2 0 . a f t e r a d d i t i o n o f a l l t h e c o a l p l a n t u n i t s t o t h e s y s t e m . B e f o r e g o f o r y e a r 2 0 2 0 S ) s t e m s t u d i e s . i t i s n c c c s s a r : t o r e \ i e \ \ t h e e : \ i s t i n g c o n f i g u r a t i o n . T h c r c t " o r e i n t h i s c h a p t e r . t h r e e a l t e r n a t i v e s o f 2 2 0 k V T r i n c o m a l e c P O \ \ e r P l a n t G r i d C o n n e c t i o n s \ \ e r e s t u d i e d b a s e d o n t h e c o n f i g u r a t i o n p r o r o s e d b y t h e · · L o n g T e r m f " r a n s m i s s i o n D e w l o r m e n t P l a n 2 0 0 8 - 2 0 1 6 . . f o r y e a r 2 0 1 6 . T e c h n i c a l a n d e c o n o m i c e \ a l u a t i o n s w e r e u s e d t o s e l e c t t h e b e s t a l t e r n a t i n : . T h e r e s u l t s o f C h a p t e r 2 s t u d i e s \ \ C I T u s e d w h e n s e l e c t i n g t r a n s m i s s i o n c o n f i g u r a t i o n f o r t h e T r i n c o m a l e e P o v . • e r P l a n t G r i d C o n n e c t i o n t ( x \ C a r 2 0 2 0 . 2 . 1 I n i t i a l T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n A c c o r d i n g t o t h e . . L o n g T e r m T r a n s m i s s i o n D e w l o r m e n t P l a n 2 0 0 8 - 2 0 1 6 . . [ 2 [ . i n i t i a l t r a n s m i s s i o n n c t \ \ o r k c o n f i g u r a t i o n s p r o r o s a l ( F i g u r e 2 . 1 ) . ' ' h i c h i s c a p a b l e o f : . r a n s m i t t i n g 1 6 0 0 \ 1 1 \ \ ' p o v \ C r u s i n g 2 2 0 k V a s t h e t r a n s m i s s i o n \ o l t a g c f r o m T r i n c o m a l e e p l m c r p l a n t i n y e a r 2 0 1 6 i s i n f o l l o w i n g m a n n e r . 2 . 1 . 1 P o w e r T r a n s m i s s i o n F a c i l i t y R e l a t e d t o T r i n c o m a l e e C o a l - F i r e d T h e r · m a l P l a n t : \ e \ \ t r a n s m i s s i o n d e \ e l o p m c n t s r e q u i r e d t o T r i n c o m a k e p m \ C T p l a n t g r i d c o n n e c t i o n c a n h e s u m m a r i z e d a s b c i O \ \ . • I r i n c o m a l e e ! \ m e r S t a t i o n ( P S ) S \ \ i t c h : a r d ( 2 2 0 k \ ' d o u b l e b u s b a r ( D I B ) a r r a n g e m e n t \ \ i t h a b u s c o u p l e r . 3 x 2 2 0 k V D / B I r a n s m i s s i o n L i n e ( l L ) b a y s . 2 : ' 1 : 2 2 0 k V [)II~ T r a n s f o r m e r ( ! I F ) b a ) S . 2 : ' 1 : 1 5 0 \ 1 V ! \ 2 : 2 0 1 3 2 . 1 3 k V T r a n s f ( x m c r . 1 3 2 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h a b u s c o u p k r . 2 : ' 1 : 1 1 2 k V D / B T f b a v s . 2 x 1 . 1 2 ! - . V D B T I . b a : s ) • T r i n c o m a l c c C i r i d S u b s t a t i o n ( C i S ) ( 2 x l 3 2 k V T I . b a : s ) • T r i n c o m a k e P S · 1 r i n c o m a k e ( i S 1 3 2 k V t r a n s m i s s i o n l i n e ( 2 c c t . 2 X k m . / c b r a ) ~ • : \ e \ \ H a b a r a n a S w i t c h i n g s t a t i o n ( S S ) ( 2 x 2 5 0 i v 1 V i \ 2 2 0 i l 3 2 l ) 3 k V T f . L J x 2 2 0 k V D I B T L b a y s . 2 x 2 2 0 k V D B I f b a : s . 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r . 1 3 2 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r . 2 x l 3 2 k V f ) I B T I b a y s . 2 x l 3 2 k V T f b a : s l • T r i n c o m a ! e e P S - : \ e \ \ I I a h a r a n a S S 2 2 0 k V t r a n s m i s s i o n l i n e ( 2 c c t . 9 5 k m . 4 x Z e b r a ) • V e ) a n g o d a G S ( 4 x 2 2 0 k V ! Y B T L h a y s ) • : \ c \ \ l l a b a r a n a S S - V e ) a n g o d a G S 2 2 0 k Y t r a n s m i s s i o n l i n e ( 2 c c t . 1 4 5 k m . 4 x / e b r a ) 2 . 1 . 2 C o n s t r u c t i o n o f K i r i n d i w c l a 2 2 0 / 1 3 2 k V S w i t c h i n g S t a t i o n F o l l m \ i n g t r a n s m i s s i o n d e \ e l o p m e n t s a r e r e q u i r e d f o r K i r i n d i v , e l a s w i t c h i n g s t a t i o n c o n s t r u c t i o n . • K i r i n d i \ \ c i a S S ( 2 2 0 k V d o u b l e h u s b a r a r r a n g e m e n t ' ' i t h h u s c o u p l e r . 8 x 2 2 0 k V D i ! - 3 T L b a : s ) • C o n s t r u c t i o n o f V e y a n g o d a - K i r i n d i , v e l a 2 2 0 k V t r a n s m i s s i o n l i n e ( 2 c c t . 1 4 . 5 k m . 4 x / e h r a ) 2 . 1 . 3 C o n s t r u c t i o n o f A r a n g a l a 2 2 0 / 1 3 2 k V S w i t c h i n g S t a t i o n I r a n s m i s s i o n f a c i l i t i e s r e l a t e d t o A r a n g a l a s w i t c h i n g s t a t i o n a r e l i s t e d b e l o w . • A r a n g a l a S S ( 2 x 2 5 0 \ 1 V ! \ 2 2 0 / 1 3 2 1 3 3 k V T L 6 x 2 2 0 k Y D / 8 l L h a y s . 2 x 2 2 0 k V [ ) B T f b a y s . 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r . 1 3 2 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h b u s c o u p l e r . 2 x l 3 2 k V I C b a y s ) • Con~truction o f K i r i n d i \ \ e l a - A r a n g a l a 2 2 0 k V t r a n s m i s s i o n l i n e ( 2 c c t . 3 3 k m . 4 x / c h r a ) • C o n s t r u c t i o n o f A r a n g a l a S S - 1 \ t h u r u g i r i y a G S 1 3 2 k V t r a n s m i s s i o n l i n e ( 2 c c t . 3 . 6 k m . / e b r a ) • C o n s t r u c t i o n o f A r a n g a l a S S - K o l o n n a w a ( i S 1 . 3 2 k V t r a n s m i s s i o n l i n e ( 2 c c t . I 0 . 4 k m . Z e b r a ) ) . t ~~' ' . • I ; \~I , , - - - - - - - - - - - - ---a_}-l=======::;~ 1 1 f = = f = ~ l E I VAVL:~IA 3 l l . 9 , ! W ~ - - 6 . 5 : \ h a r 8 KlLLl~OCHC H I f R I . ' \ C O M A L E E P S - - r - ' 1 D 1 W ' :8.2~1var H I Y A G A : V \ A 2 2 0 k V l 3 2 k V l x l 5 0 . 1 ~ ' - E \ V /\:\l3A:Ji:t~P~_:RA? 4 X Z e b r a , l 4 5 k m - - - A ' \ L ' R A D C A P L ' R A 4 l : Z c b r a , 9 5 k m i \ ' E W H A B A R A i \ ' A ...LL---!-4-......l-L..L~-- 2 2 1 1 k V I L i O k V r r - - - 1 K I I C \ D ! W E L A 4 X Z c b r a , 3 3 k m 2 x 2 5 0 \!V?-0-~ - . - - ' - - V U 2 k V ~--- IIAlJARA~A 1 3 2 k V L e g e n d I A R \ M J A L A 2 0 k V . . . l . . . 1 - . ! . . . L 2 2 0 k V I I I f '~ 2 K O T V . A T F A T H L R l X i l i C Y A 2 x 2 5 0 ~1 Z c b r a , 3 . 6 k m _ _ _ j - - - 2 2 0 k V L i n e 1 3 2 k V l . i n e P A ' J i \ ' ! P I T I Y A I ""'X/~ - - - - - ; ; ) . , ~ _ _ _ + K O L O i \ ' ! \ A W A - - 3 3 k V I . i n e - - - - Q ) - - T r a n s f o r m e r y 3 W d g A u t o T r a n s f o r m e r r 2 2 0 k V Z . c b r a , I 0 . 4 k m 6 1 T h e r m a l l 3 2 k V P o w e r S t a t i o n F i g u r e 2 . 1 T r i n c o m a l c e C o a l P < m c r P l a n t G r i d C o n n e c t i o n A c c o r d i n g t o t h e " ' L o n g T e r m T r a n s m i s s i o n D e v e l o p m e n t P l a n 2 0 0 8 - 2 0 1 6 " 2 . 2 C o s t E s t i m a t i o n o f I n i t i a l T r a n s m i s s i o n ~etwork C o n f i g u r a t i o n ; \ 1 ' ; > l e i t e m s l i s t e d i n 2 . 1 . 1 . 2 . 1 . 2 a n d 2 . 1 . 3 w e r e t a k e n i n t o a c c o u n t f o r t h e c a l c u l a t i o n i ' c o s t s o f s e l e c t e d t r a n s m i s s i o n n c t \ \ O r k c o n f i g u r a t i o n s . l " n i t c o s t s ( B a s e C o s t ) \ \ e r e [ , ; a i n c d f r o m t h e 200~ C o s t D a t a b a s e p r e p a r e d b y t h e T r a n s m i s s i o n P l a n n i n g B r a n c h n t ' C L B a n d t h m 1 t h e r e p o r t · · \ ! J a s t e r P l a n S t u d y o n t h e D e \ e l o p m e n t o f P m \ e r ( i e n n a t i o n a n d Transmission~) s t e r n i n S r i L a n k a ' " [ . + j I h t ' b e s t e s t i m a t i o n o f p r o i e c t co~ts c a n b e u n d e r t a k e n t i · o m p r i c e s a \ a i l a b l e a t t h e t i m e o f e s t i m a t i o n ( d a t e o f e \ a l u a t i o n ) . P r o j e c t i m p l e m e n t a t i o n c a n t a k e m a n : v e a r s . l k n e e . t h e a c t u a l c o s t o f t h e p r o j e c t a t t h e c o m m i s s i o n i n g d a t e v , i l l d i f f e r f r o m t h e L ' O s t e s t i m a t e d a t t h e t i m e o f 1 1 l a n n i n g a n d e v a l u a t i o n . T h i s i s t h e r e s u l t o f i n t l a t i o n a n d I n c r e a s e i n p r i c e a n d q u a n t i t i e s o l · t h e p r o j e c t c o m p o n e n t s . S u c h \ a r i a t i o n i s a l l , l \ \ e d t ( n t h r o u g h t h e f o l l o w i n g t \ \ U c o n t i n g e n c i e s . • , \ P l l y s i c a l C o n t i n g e n ( r t o a l l m \ f o r t h e i n c r e a s e i n q u a n t i t i e s o f m a t e r i a l a n d e q u i p m e n t i m o h c d i n p r o i e c t e x e c u t i o n a n d t h e c h a n g e o f i m p l e m e n t a t i o n 6 t ' : · ; ~-· j ~~It , , I m e t h o d . C i \ i l \ \ o r k s h a \ e h i g h e r c o n t i n g e n c y t h a n m a c h i n e r : . P h y s i c a l c o n t i n g e n c i e s u s u a l ! : \ a r y u p t o 1 0 ( % o f t h e p r o j e c t b a s e c o s t . B e y n n d t h i s . m o r e d e t a i l e d e s t i m a t i o n h a s t o b e u n d e r t a k e n i n o r d e r t o r e d u c e u n c e r t a i n t i e s i n r r o j c c t c o s t e s t i m a t i o n . P h y s i c a l c o n t i n g e n c i e s a r e d i s t r i b u t e d a l o n g t h e r r o j e c t e x e c u t i o n l i f e a s a r c r c c n t a g c o f a n n u a l c o s t a l l o c a t i o n . • / \ . P r i c e C o n t i n g e n c y t o a l l o w i n c r e a s e i n p r i c e o f r r o j c c t c o m p o n e n t s . O \ e r t h e b a s e c a s e e s t i m a t i o n . d u r i n g t h e c o n s t r u c t i o n r c r i o d . I t i s h i g h l : d c r c n d c n t o n i n f 1 a t i o n r a t e s a n d o t h e r p o s s i b l e p r i c e i n c r e a s e s . 2 . 2 . 1 B a s e C o s t E s t i m a t i o n o f t h e I n i t i a l T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n B a s e c o s t d o c s n o t i n c l u d e t h e c o s t a s s o c i a t e d w i t h u n c e r t a i n t i e s a n d r i s k s . I t c o m p r i s e s o f t w o c o m p o n e n t s . • F o r e i g n C o s t ( F . C . ) C o m p o n e n t i s t h e c o s t o f p l a n t a n d e q u i p m e n t . • L o c a l C o s t ( L C . ) C o m p o n e n t i n c l u d e s A g e n c : F e e . C l e a r a n c e c h a r g e s . D o c u m e n t c h a r g e s a n d I r a n s p o r t C h a r g e s e t c . D e s c r i p t i o n C o n s t r L c t i o c n ! ' T r : n c , l P o 1 1 e r S t a t i o n S11itcf~:arci i ' \ L : g n l e ; J t a t i o n o f T r i n c o C l : · i d S u b s h : t i u n Construc;iol~ o : · : \ c 1 1 H a b a r c : : ; c 1 2 2 0 / l 3 2 h . \ ' S 1 1 : t c h i n g Stc!tic't~ A u g m c n t a t i or~ o f \ c : a n g u d , ; G r i d S u b s t a t i o n C o n s t r L : c t i o n c : : ' \ : · a : 1 g a l a 2 2 0 I 3 2 l , V S 1 1 itcl~ : : 1 g S t a t i o n Constn;cti~)n ;JfK~rit~di\\cla : 2 : 2 0 1 3 2 k \ ' S \ \ : t c h i n g S t a t i o n C o n s t : · u c t i l l ' 1 l l f ' T r i n c o r m d c e P S - T r 1 ' 1 C O t l 1 a k c C i S I J 2 h . \ t r c m s : 1 1 i s s i o n l i n e ( 2 8 \ , . : 1 1 1 C o n s t r u c t i c > : 1 c > t ' T r i n c o P S - ' \ e 1 1 H a b a r a n a S S 2 2 0 h . V Wli~SI~ ; , J u t cn:1ne~tiun f r o n ; H:;,;:gc!:~;;_~-P;_:n:;initi:a ~20k \ " T r L i n e : u c u n n e c · . . . \ t - a ! : g a ! a S S ( 0 . 5 i \ . : ; ; ) C o n s t r u c t i o n L l i . A r c w g a : a S S -I\.oion·~'ma C i S ! 3 2 h . \ . trans:~1:ssi,m ' i t l c ( ! O . . f ' - m l C o n s : r L : c t i o n o : ' \:·a~::,:<:.'' S S - . \ : b u r u g i r · i : a C i S ! 3 2 \ . , \ :n'.:ls~:~:ss:c:' l i n e ( . \ . ( l " t l l ) Cnnst!·uc~;un l1:"\'e:(i:1~t~C<.l C J S -f ( ' C o s t E s t i m a t i o n o f I n i t i a l T r a n s m i s s i o n ' \ r t \ \ o r l - . C o n f i g u r a t i o n i n ~ear 2 0 1 6 . \ c c o r d i n g t o t h e l a b l e . 2 . 1 t o t a l b a s e c o s t e s t i m a t i o n o f i n i t i a l 2 2 0 k V t r a n s m i s s i o n n c t \ \ o r k c o n f i g u r a t i o n i s _ 2 j . R J . . . J . . 5 : ' v 1 i l l i o n L K R . 7 ~~ l l • ~;: I I,~ I \ , , i 2 . 2 . 2 D i s b u r s e m e n t S c h e d u l e s a n d T o t a l C o s t E s t i m a t i o n o f t h e I n i t i a l T r a n s m i s s i o n : ' i e t w o r k C o n f i g u r a t i o n T h e p r o j e c t e x e c u t i o n p e r i o d i s c o n s i d e r e d a s t h r e e y e a r s . I m e s t m c n t i s g r o u p e d t o h e d i s b u r s e d a t 2 0 < 1 ( > . 7 0 % . I 0 % s p r e a d O \ e r t h r e e y e a r s s t a r t i n g o n e y e a r a f t e r t h e c o s t e s t i m a t i o n . F o l i o \ \ i n g c o s t c o m p o n e n t s \ \ i l l h e a d d e d t o d e t e r m i n e t h e t o t a l c o s t e s t i m a t i o n . • P r i c e f . s u t ! u t i o n : c h a n g e s i n t h e c o s t o r p r i c e o r s p e c i f i c g o o d s o r s e n i c e s t n a g i \ c n e c o n o m y 0 \ e r a p e r i o d o f t i m e . T h i s i s s i m i l a r t o t h e c o n c e p t s o ! ' i n t 1 a t i o n . • P h y s i c o / ( ' o n t i n g e n c i e s : T o a l k m f o r t h e i n c r e a s e i n q u a n t i t i e s o f m a t e r i a l a n d e q u i p m e n t i m o h c d i n p r o j e c t e x e c u t i o n a n d t h e c h a n g e o f i m p l e m e n t a t i o n m e t h o d . • A d m i n i s t r a t i \ e c o s t : A c c o m m o d a t i o n . C o m m u n i c a t i o n . t r a n s p o r t . T r a i n i n g • L e \ i c s D e s c r i p t i o n T o t a l 2 0 1 - - l 2 0 1 5 2 0 1 6 R a s e C o s t f . C . 1 8 0 5 - t 3 6 I I 1 2 6 3 8 1 8 0 5 L . C . 5 7 6 1 I I 5 2 - + 0 3 3 ) 7 6 P r i c e E s c a l a t i o n r . c . 3 3 2 7 5 7 2 2 3 6 - t 3 9 1 L . C . 5 0 2 8 8 3 - t 3 5 7 9 6 1 5 S u b T o t a l I F . C . 2 1 3 8 0 - l 1 8 2 1 5 0 0 2 2 1 9 6 L . C . 1 0 7 8 8 1 9 8 6 7 6 1 2 1 1 9 1 P h : s i c a l C o n t i n g e n c i e s l 0 ° o F . C . 2 1 3 8 4 1 8 1 5 0 0 n o L . C . 1 0 7 9 1 9 9 7 6 1 ! 1 9 S u b T o t a l 2 F . C . 2 3 5 1 8 - 1 6 0 1 1 6 5 0 2 2 - 1 1 6 L . C . 1 1 8 6 7 2 1 8 5 8 3 7 3 1 3 1 0 / \ d m i n i s t r a t i \ c C o s t L . C . 8 7 ' _ _ ) 1 6 ! 5 7 8 8 5 7 ! J / i t / / k f n r e / . e r i e . 1 F C l 3 J ! 8 . j ( j ( ) f f ( j J { ) l l . f / ( j L C ' I _ : ( j < ) ! J . : J . j ( j 8 C J 5 ! J 1 3 C ) . j I C \ i c s L . C . 8 - + 7 1 6 6 5 9 - t 8 7 F . C . 2 3 5 1 8 . - 1 - 1 6 0 1 1 6 5 0 2 2 - 1 1 6 G r a n d T o t a l L . C . 1 3 5 3 7 . 0 2 5 1 1 9 5 - 1 - 1 1 - 1 8 1 : V I L K F 3 7 , 0 5 5 . - 1 f a b l e 2 . 2 T o t a l C o s t E s t i m a t i o n o f I n i t i a l T r a n s m i s s i o n : \ c t \ \ O r k C o n f i g u r a t i o n i n \ C a r 2 0 1 6 \ c c o r d i n g t o t h e T a b l e 2 . 2 T o t a l p r o j e c t c o s t e s t i m a t i o n t ' o r t h e i n i t i a l t r a n s m i s s i o n n c t \ \ o t l c o n f i g u r a t i o n i n y e a r 2 0 1 6 i s ~7.055 . . . J . \ 1 i l l i o n L K R 1 • • , - . X ~· ; , ; • : · I 1 : 1,~\ ' " i 2 . 3 A l t e r n a t i v e 2 2 0 k V T r a n s m i s s i o n X e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 1 6 \ e m t h e T r a n s m i s s i o n P l a n n i n g B r a n c h o f C e y l o n E l e c t r i c i t ; B o a r d i s i n t h e p r o c e s s o f p r e p a r i n g t h e . . L o n g T e r m T r a n s m i s s i o n D e v e l o p m e n t P l a n 2 0 1 0 - 2 0 1 9 . . , S o i t i s n e c e s s a r ; t o r c v i n \ t h e e x i s t i n g T r i n c o m a l c c C o a l ! \ m e r P l a n t C i r i d C o n n e c t i o n p r o p o s a l a n d m a k e n e c e s s a r y c h a n g e s t o t h e p r o p o s a l . l - o l l t m i n g o p t i o n s v v e r c s t u d i e d t o s e l e c t m o s t v i a b l e c o n f i g u r a t i o n f o r y e a r 2 0 1 6 . • l r a n s m i s s i o n \ : e t v v o r k w i t h t h e n e v \ L o a d s of~orthem P r o v i n c e • I r i n c o m a l e e C o a l P c m e r P l a n t ( ) r i e l C o n n e c t i o n - W i t h o u t \ ' e v v l l a b a r a n a S w i t c h i n g S t a t i o n • I ' r i n c o m a l e e C o a l P m v c r P l a n t G r i d C o n n e c t i o n - \ V i t h o u t K i r i n c ! i v v e l a S v v i t c h i n g S t a t i o n l ) ~: I I ' . , I I ' ' i I I 2 . 3 . 1 T r a n s m i s s i o n : \ ' e t w o r k w i t h t h e n e w L o a d s o f : \ o r t h e r n P r o v i n c e - Z e b r a 2 8 k m I T R I - . ; C 0 \ 1 A L F J - - 4 © - t,~OkV I 1 3 2 k V 4 X 2 5 0 + 2 x 3 l E VAVG~IA 1 3 2 k V 1 - - - - - - ( Q ) - + - - ( 9 ' \ t W 3 9 . 9 ' \ t w 6.5'\tva~ K A P P ~~THURA! f C O A L STEA~ 1 8 K I L L I - . ; O C H C H I T R I : \ ' C 0 ' \ 1 A L U 0 0 P S ~·- 1 2 8 . 5 ' \ ' I W 1 3 2 k V f 1 8 . 5 ' \ t v a r ~ : v r v V E Y A K G O D A 1 ~!50 : \ l o W A \ ' U R A D H A P C R A ( A ' \ C R A D H A P C R A M V A - ( / < \ \ 4 X Z e h r a , l 4 5 k m i 4 x Z e h r a , 9 5 k m 1 3 2 k V I : : \ E W H A B A R A - . ; A ~ 2 2 0 k V 4 X Z e b r a , 1 4 . 5 k m B ! Y A G A \ 1 A 2 2 0 k V I V 2 2 0 k V i [ I 132~V i Z e b r a , S k m I _ i K I R I : : \ D I W E L A H A B A R A : : \ A 4 X Z e b r a , ~----- 3 3 k m ' L e g e n d 2 2 0 k V A R A : : \ G A L A P A - . ; ' - ' I P ! T I Y A h 2 5 0 c C ' \ I V A 2 2 0 k V KOT~E A T H C R C G I R T Y A Z e b r a , 3 . 6 k m · r - - 2 2 0 k V L i n e 1 I 1 3 2 k V L i n e [ I I 1 3 d k v i _ _ _ L _ + - - + - K O L O J \ ' : : \ ' A W A ! J 2 2 0 k V Z e h r a , 1 0 . 4 k m 1 3 L v c . F i g u r e 2 . 2 : ' \ e t \ \ o r k " i t h t h e n e w L o a d s o f : ' \ o r t h e r n P r c n i n c e - { ] ) - ~ 0 3 3 k V L i n e T r a n s f o r m e r 3 W d g A u t o T r a n s f o r m e r f h e r m a l P o w e r S t a t i o n \ \ ' i t h t h e l i b e r a t i o n o f c o n t 1 i c t a f f e c t e d a r e a s i n K i l i n o c h c h i a n d : V 1 u l l a t i \ \ . ? d i s t r i c b d u r i n g l a t e . 2 0 0 8 - - e a r l y . 2 0 0 9 . d e v e l o p m e n t a c t i \ i t i e s a r c g r a d u a l ! : - t a k e n p l a c e . R e s d t l e m e n t h a s b e e n t h e t o p p r i o r i t y o f t h e G m e r n m e n t . f h u s . m a n : h u m a n i t a r i a n r e q u i r e m e n t s l i k e \ \ a t e r s u p p l : p r o j e c t . h o s p i t a l s . i r r i g a t i o n s c h e m e s a r c b e i n g i n i t i a t e d o r u n d e r c o n s t r u c t i o n . ! h e y w i l l r e q u i r e h c a \ y s u p p l i e s . S e c u r i t ) ' p o l i c e i n s t a l l a t i o n s a l s o n e e d c l c c t r i e i t \ w i t h t o p p r i o r i t y . P r e s e n t ! \ s o m e o t ' t h e s L ' i n s t a l l a t i o n s a r e h a \ i n g D i L ' s e l ( ! e n e r a t o r s . A c c o r d i n g t o t h e C e ) l o n U e c t r i c i t \ B o a r d - ' " \ k d i u m V o l t a g e D i s t r i b u t i o n S : s t e m D e \ e l o p m e n t ~>Jan f o r R e c e n t ! ) L i b e r a t e d A r e a s o f . ' \ o r t h e r n P n l \ i n c t ' . . . [ 8 ] V a n m i a a n d K i l i n o c h c h i g r i d s u b s t a t i o n s l o a d s \ \ i l l [ ( ) I ~­ l l ' , , , I ; I I b e i n c r e a s e d h : 9 : v 1 W a n c l 1 ! . 5 M W i n a d d i t i o n t o t h e f o r e c a s t e d l o a d s i n \ C a r . 2 0 1 6 . ( F i g u r e 2 . 2 ) 2 . 3 . 2 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t K i r i n d i w e l a S w i t c h i n g S t a t i o n l o p r e p a r e l l C \ \ l r i n c o m a l e e P c m e r P l a n t G r i d ( ' o n n c c t i o n p r o p o s a l s f o r " [ . o n g [ c r m [ r a n s m i s s i o n D e \ c l o p m c n t P l a n . 2 0 I 0 - 2 0 1 9 " . i t i s n e c e s s a r y t o r e \ i e \ \ e : - ; i s t i n g c o n f i g u r a t i o n . I h c r l ' t ( J r e u n d e r t h i s o p t i o n . s t u d : w a s c o n d u c t e d t ( J r t h e I r i n c o m a l c c [ X l \ \ C r p l a n t ( i r i d C o n n e c t i o n v \ i t h o u t K i r i n d i \ \ c l a S \ \ i t c h i n g S t a t i o n ( I i g u r e 2 . 3 ) . r - - - - - - - 1 I r ; = V A V L ' ? \ T A ! 3 0 . 9 : \ ' J W W i 6 . S M V v a r Y K f L L D : O C H C H I ' : 1 7 ~1W : s . 2 ! \ 1 V v a r , V E Y A . \ " G O D A l 3 2 k V 4 X Z c b r a , 4 7 . 5 k m B I Y A G A . \ 1 A 2 2 0 k V 2 2 0 k V A R A : \ G A L A - Z e b r a , 2 8 k m 1 T R I \ ' C 0 : \ 1 A L E E K A C O A L S T E A . \ 1 T R C \ ' C O : V l A L E E P S A : \ C R A D H A P l ; R I \ 4 x Z c b r a , 9 5 k m H A B A R A . \ " A - J . . . J . . . . - j - ! - - - l . - ' - . 1 . . - - r - - - 2 2 0 k V 2 x 2 5 0 i ~ i H A B A R A . \ " A l 3 2 k V L e g e n d 2 2 0 k V 1 1 1 1 - - - 2 2 0 k V L i n e K O T M A L E A T H C R U U I R I Y A - - - - - - 1 3 2 k V L i n e - - 3 3 k V L i n e 2x250~ : V l V A l i ( _ _ j 1 Z c b r a , 3 . 6 k m P A : \ . \ " f P [ T ! Y A l 3 2 k V K O L Q : - - . ; : \ A W A 2 2 0 k V - ( ] ) - - T r a n s f o r m e r _ _ _ _ ; { ' ' ) . . _ 3 W d g A u t o ' t J T r a n s f o r m e r Z~bra, 1 0 . 4 k r n l 3 2 k V ( 9 T h e r m a l P o w e r S t a t i o n i F i g u r e 2 . 3 T r i n c o m a l e e C o a l P o w e r P l a n t C r i d C o n n e c t i o n - W i t h o u t K i r i n d i \ \ c l a S \ \ i t c h i n g S t a t i o n l l I 1 · 1 , ; ( ' J : ~: r ~ .i_i , . , , . , 2 . 3 . 3 T r i n c o m a l c c C o a l P o w e r P l a n t G r i d C o n n e c t i o n - \ V i t h o u t : \ e w H a b a r a n a S w i t c h i n g S t a t i o n T h i s o p t i o n \ \ a s i l l \ e s t i g a t e d t h e p o s s i b i l i t : o f ' r c m o \ i n g t h e ~ew H a b a r a n a S S f r o m t h e e x i s t i n g c o n f i g u r a t i o n ( F i g u r L ' 2 . 4 ) . F o l l o w i n g a d d i t i o n a l t r a n s m i s s i o n r e - e n f o r c e m e n t s a r c n e c e s s a r y t o O \ e r c o r n e c r i t i c a l v o l t a g e a n d t h e r m a l c r i t e r i a \ i o l a t i o n s ( A n n e x l J ) . • C o n s t r u c t i o n o f T r i n c o m a l c e P S V e y a n g o d a C i S 2 2 0 k V t r a n s m i s s i o n l i n e ( 2 c c t . 2 - + 0 k m . 4 x 7 e b r a ) • C o n s t r u c t i o n o f T r i n c o m a ! c c P S \ ' c \ \ A n u r a d h a r u r a C i S 2 2 0 k V t r a n s m i s s i o n l i n e ( 2 c c t . I O J . J k m . 2 x Z e b r a ) • R e c o n s t r u c t i o n o f \ ' c \ \ - A n u r a d h a r u r a - A n u r a d h a p u r a 1 J 2 k V d o u b l e c i r c u i t l i n e u s i n g Z e b r a c o n d u c t o r . • A u g m e n t a t i o n o f : \ e w A n u r a d h a p u r a G S ( 2 x 1 5 0 : V 1 V A 2 2 0 1 1 J 2 / J J k V T f t o J x 1 5 0 : V 1 V A 2 2 W l J 2 / J J k V T f 2 x 2 2 0 k V D I B T L b a y s . l x 2 2 0 k V D / B T f b a y s . 1 x 1 3 2 k V L ) I B T F b a y s . 1 x 3 3 k V I F b a y ) • l ' p g r a d e o f l f a b a r a n a - A n u r a d h a p u r a l J 2 k V T r a n s m i s s i o n l i n e t o o p e r a t e a t 7 5 ( \ . . 1 2 ~~' ! I ~ \, l i : : ~ r - - ; : : = = = = ' = : : : j ,~n~ 1 3 2 , k V Z e b r a , 2 8 k m I T R ! ' - i C O : v t A L E E 1 3 2 k V JlVAVC!\l~ $ -~ILLI);OCHCIII I . . - - - - - - - - C O A L S T E A \ 1 T R I : \ C 0 \ 1 A L E E P S - - - + - l l 7 \ 1 W I T 1 8 . 2 : \ c l v a I 3 2 k 4 l l · I 3 x ! S O j j : v i V A ( ? \ \ ·~ Z e b r a , 1 . 5 k m V E Y A : \ G O D A 8 1 5 0 V A ~ . _ 2 x 1 b f a , 1 0 3 . 3 k m : \ E W ' I /\:\~iRADHAPCRA / \ ' \ l : R A D H A P l : R . A 1 3 2 k V 4 X Z c b r a , 1 4 . 5 k m L y n x , 4 8 . 9 k m ( U p g r a d e t h e l i n e ) I B l Y A G A M A 2 2 0 k V 2 2 0 k V L . . ' - - - I 1 3 2 k V i K I R ! l \ D l W E L A r H A B A R A " \ A 2 2 0 k V P A " \ " \ I P ! T I Y A 2 2 0 k V 4 X Z e b r a , 3 3 k m A R A : - - ! G A L A 2x250~ . ' \ ' I V A l Q _ j L e g e n d - - - 2 2 0 k V L i n e 2 2 0 k V I K O T \ 1 A L E A T H C R C G ! R ! Y A : - - 1 3 2 k V L i n e Z c b r a , 3 . 6 k m I - - 3 3 k V L i n e I ' - - ( ] ) - T r a n s f o r m e r I _ _ _ _ / { \ _ 3 W d g A u t o 1 3 2 k V KOLO~AWA Z e b r a , I 0 . 4 k m 1 3 2 k V . - " f j Transformer~ ! 6 ) T h e r m a l ·~ P o w e r S t a t i o n ! I l F ! : . : , u r ' l ' 2 . - 1 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n w i t h o u t ' l e \ \ H a h a r a n a S \ \ i t c h i n g S t a t i o n 2 . 4 S t e a d y S t a t e A n a l y s i s o f A l t e r n a t i v e 2 2 0 k V T r a n s m i s s i o n ~etwork C o n f i g u r a t i o n s f o r y e a r 2 0 1 6 2 . - L I T r a n s m i s s i o n : ' \ c t w o r k w i t h t h e n e w L o a d s o f : \ o r t h e r n P r o v i n c e \ c c u r d i n g t o t h e · V I e d i u m V o l t a g e D i s t r i b u t i o n S y s t e m D e \ e l o r m e n t P l a n f u r 1 \ e c e n t h l i b e r a t e d A r e a s o f ' \ o r t h e r n P r O \ i n e e · [ 8 J f o l l m \ i n g ( I a h k : : u ) l o a d s w i l l h e a d d e d t o t h e s Y s t e m i n : w l h i n a d d i t i o n t o t h e L o a d l oreca~t p r e p a r e d h ; t h e [ r a n s m i s s i o n P l a n n i n g B r a n c h . I~ H l l 1 : ~: \ ' , . [ 1 ~~: G r i d S S . ' l i g h t P e a k ·-~--~---·----- - - - - - + - : V I W M V a r . - - - - - - - - - - - - - - - - - r - - - - - - - - - - - - - - - - - - - - - r - - - - - - K i l i n o c h c h i 1 1 . 5 4 0 . 2 9 \ ' ; n u n i a 8 . 9 9 0 . 0 1 D a y p e a k - --------·-~------ - - - - - - , - - : v t W : v t V a r 7 . 0 9 4 S + 0 . 2 9 ( ) , ( ) l T a b l e 2 . 3 A d d i t i o n a l L o a d s o f 2 0 1 6 P o w e r S y s t e m i n L i b e r a t e d A r e a s o f : " ' o r t h e r n P r O \ i n c e L o a d t l o \ \ s t u d i e s f o r n i g h t p e a k a n d d a y p e a k l o a d s c e n a r i o s \ \ e r e a n a l y z e d t o c h e c k \ \ h e t h c r a n : m o d i t i c a t i o n s a r c n e c e s s a r y f o r t h e T r a n s m i s s i o n : \ e t \ \ O r k C o n l i g u r a t i o n o f T r i n c o m a l c c C o a l P o w e r P l a n t G r i d C o n n e c t i o n a c c o r d i n g t o t h e l 1 C \ \ l o a d a d d i t i o n s o f : \ o r t h c r n P r o \ i n c e . T h e t o t a l a d d i t i o n o f l o a d s t o t h e S ) s t e m a c c o r d i n g t o t h e p r e s e n t : \ o r t h c r n p l a n i s 2 0 . 5 \ I I W . B u t a c c o r d i n g t o t h e L o a d f o r e c a s t 1 : 2 1 . t h e 2 0 1 6 p m \ c r s y s t e m : \ i g h t p e a k i s 3 7 2 6 . 3 M W . T h e r e f o r e i t i s c l e a r t h a t t h e l o a d c e n t e r \ \ i l l n o t h e c h a n g e d d u e t o n n \ ? \ o r t h e r n l o a d s . L o a d t 1 m \ s t u d i e s a l s o i l l u s t r a t e t h a t n o c h a n g e s w i l l c a u s e t o t h e p r o p o s e d c o n f i g u r a t i o n d u e t o n C \ \ n o r t h e r n l o a d s . 2 . - U T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t K i r i n d i w e l a S w i t c h i n g S t a t i o n S \ s t e m s t u d i e s \ \ e r e c o n d u c t e d f o r ? \ i g h t P e a k a n d D a : P e a k l o a d s c e n a n o s c o n s i d e r i n g n o r m a l a n d s i n g l e c o n t i n g e n c y o p e r a t i n g c o n d i t i o n s . S o r m a l o p e r a t i n g c o n d i t i o n s ! r a n : , m i s s i o n l o s s e s o f t h e s y s t e m \ \ i t h a n d w i t h o u t K i r i n d i w e l a S S a r c s u m m a r i z e d i n t h l c 2 . - t . / / . . . . - ' - - -. . ~: ; ' - - - - . . . . . . - - T • O p t i o n T r a n s m i s s i o n L o s s e s ( . \ 1 W ) -----··---~--------- - - - - - - ~ - --------~ - - - - - - - - - - - - - - 1 \ i g h t P e a k D a ) P e a k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - \ \ i t h K i r i n d i \ \ e l a S S 1 0 4 . 7 3 6 . 6 \ \ ' i t h o u t K i r i n d i \ \ e l a S S 1 0 5 . 4 3 5 . 9 l a h l e 2 A T r a n s m i s s i o n L o s s e s \ \ i t h a n d \ \ i t h o u t K i r i n d i w e l a S \ \ i t e h i n g S u b s t a t i o n I a b l e 2 . - t i l l u s t r a t e t h a t t h e t r a n s m i s s i o n l o s s e s a r e a l m o s t s a m e f o r l \ \ O c a s e s . L o a d t l u \ \ s t u d i e s a b o c o n f i r m t h a t t h e b o t h s y s t e m s c o n s i s t o f s a m e ( ) \ c r l o a d c d c : q u i p m l ' t 1 t s a n d \ o l t a g e \ i o l a t i o n s f o r b o t h D a y P e a k a n d : \ i g h t P e a k s c e n a r i o s u n d e r n o r m a l o p e r a t i n g c o n d i t i o n s . l . f . , • I : . 1 1 i : l : 1 i ! \ { ~I ' S i n g l e c o n t i n g e n c y o p e r a t i n g c o n d i t i o n s L o a d i n g c o n d i t i o n s a n d v o l t a g e v i o l a t i o n s a f t e r o u t a g e o f c r i t i c a l 2 2 0 k V l i n e s a r c s h c l \ \ n i n T a h l e 2 . 5 a n d T a b l e 2 . 6 . ( A n n e x 1 3 i l l u s t r a t e t h e p l a n n i n g c r i t e r i a ) C o n t i n u e n n , . . , . ~------------ O n e c i r c u i t o u t a g e o f B i ; . a g a m a K i r i n d i m : l a - K o t m a l e 2 2 0 k V l i n e O n e c i r c u i t o u t a g e o f K o t u g o d a - B i ; . a g a m a 2 2 0 k V l i n e 1 - - - - - - - - - - - - - - - - - - - - - - 0 n e c i r c u i t o u t a g e o f B i ; . a g a m a i \ r a n g a l a 2 2 0 k V l i n e O n e c i r c u i t o u t a g e o f V e ; . a n g o d a - A r a n g a l a K i r i n d i w e l a 2 2 0 k V l i n e O n e c i r c u i t o u t a g e o f ' \ e \ \ f l a b a r a n a V c ; . c m g o d a 2 2 0 k V l i n e ~---- - - - - - - - - - - - - - V o l t a g e v i o l a t i o n s ( p u ) ~-----------·--------~~~---~-------- - - - W i t h o u t K i r i n d i \ \ e l a S S W i t h K i r i n d i w e l a S S B i ; . a g a m a - 0 . 9 4 7 B i ; . a g a m a - 0 9 4 9 l 3 i ; . a g a m a - 0 . 9 5 0 M a n g a l a 0 . 9 3 5 P a n n i p i t i ) a 0 . 9 3 1 B i y a g a m a 0 . 9 5 0 A r a n g a l a - 0 . 9 3 5 P a n n i r i t i ) a 0 . 9 3 1 L o a d i n g o n t h e r e m a i n i n g c i r c u i t W i t h o u t K i r i n d i w e l a s s : 2 1 ° o W i t h K i r i n d i w e l a s s : : 2 : Z 0 · o - - - - · - - t · - - - - - - - - 6 6 " ( , 5 6 ° o - - + - ----------~~--~~---+-----~-------- · - - - - · - - - - - - - + - - - - - - - - - A r a n g a l a 0 . 9 3 0 f ' a n n i p i t i ; . a 0 . 9 . : 2 6 G i ; . a g a m a · · · 0 . 9 4 7 i \ r a n g a l a 0 . 9 . : 2 8 P a n n i r i t i y a 0 . 9 . : 2 4 V e ; . a n g o d a 0 . 9 4 6 B i ; . a g a m a 0 . 9 4 3 A r a n g a l a 0 . 9 2 7 P a n n i p i t i ; a - 0 . 9 2 . : 2 ; \ r a n g a l a - 0 . 9 3 2 P a n n i r i t i y a 0 . 9 2 X 9 0 ° o " - - - - - - - - - - -~-----t------- - - - R i y a g a m a 0 . 9 5 0 A r a n g a l a · · 0 . 9 3 5 2 : 2 ° o P a n n i p i t i y a 0 . 9 3 I V e ; . a n g o d a 0 . 9 5 0 B i y a g a m a · 0 . 9 4 3 i \ r a n g a l a - 0 . 9 . : 2 9 P a n n i p i t i ; . a 0 . 9 2 5 4 4 " o 8 8 ° ( ) : 2 9 ° 0 4 4 " o T a b l e 2 . 5 Contingenc~ R e s u l t s f o r T r a n s m i s s i o n : \ e t w o r k s \ \ i t h a n d n i t h o u t K i r i n d i w r l a S S - ! \ i g h t P e a k Contingenc~ O n e c i r c u i t o u t a g e o f f~i: a g a m a K i r i n d i w c l a - 1 \ . o t m a l e 2 2 0 k V l i n e O n e c i r c u i t o u t a g e o f D i : a g a m a i \ r a n g a l a : 2 2 0 k V l i n e < l n e c i r c u i t o u t a g e o f V c ; . a n g o d a A t · a n g a l a 1 \ . i r i n d i \ \ c l a : 2 2 0 k V l i n e O n e c i r c u i t o u t a g e o f \ C \ \ H a b a r a n a Vc~(lllg_D_~ - - - - - ~---- - - - - - - - - - - - - - - - - - - - - - - - T - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - : \ i g h t P e a k D a y P e a k - - - - - - - - - - - - - - - - - - · - - - - - - - ---~------ . - . - W i t h \ ' c \ \ f l a h a r a n a S S l 0 4 . 7 3 6 . 6 \ \ ' i t h o u t : \ e \ \ ! l a b a r a n a S S 1 1 4 . 0 3 7 . 1 T a b l e 2 . 7 T r a n s m i s s i o n L o s s e s w i t h a n d \ \ i t h o u t : \ c w H a b a r a n a S w i t c h i n g S u b s t a t i o n \ c c o r d i n g t o t h e T a b l e 2 . 7 t r a n s m i s s i o n l o s s e s a r e h i g h i n t h e c a s e o f 2 2 0 k V I r a n s m i s s i o n \ ' e t w o r k \ \ i t h o u t : \ e \ \ H a b a r a n a S S . \ o m c r l o a d i n g o f T r a n s m i s s i o n L i n e s o r T r a n s f o r m e r s \ \ e r e o b s c n c d C o r t \ \ O c a s e s d u r i n g l o a d f 1 o w a n a l y s i s . T r a n s m i s s i o n \ ' e t \ \ o r k w i t h o u t ? \ e w H a b a r a n a S S h a s ! ( > l l ( m i n g \ o l t a g e \ i o l a t i o n s ( T a b l e 2 . 8 ) . E q u i p m e n t _ P a t 1 _ n i [ J i t i y a 220~V _ _ Aran~ala 2 2 0 k V ~ -----------~------------- - - - - - - - - - - P o l o n n a r u w a 1 3 2 k V V m n i a l 3 2 k V r - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C h u n n a k u m 1 3 2 k V V o l t a g e v i o l a t i o n s ( p . u . ) : \ i g h t P e a k D a y P e a k - - - - - - - - - - · - · - - · + - - - - · - - - - - - - - - - 0 . 9 3 5 - - - -----~--- 0 . 9 4 --~-----· 0 . 9 4 3 0 . 9 . + 0 . 9 4 6 \ : o V i o l a t i o n " > \ Y e n ? ( )b~en e d T a b l e 2 . 8 V o l t a g e Y i o l a t i o n s \ \ i t h o u t : \ c \ \ H a b a r a n a S S ~'ingle c o n t i n g e n c : r o p e r a t i n g c o n d i t i o n s l 1 1 l l o \ \ i n g p l m e r 1 1 m ' r e s u l t s ( [ a b l e 2 . 9 ) \ \ C r c o b t a i n e d r o r t h e s i n g l e c o n t i n g c n c : , ) ! ' C r a t i n g c o n d i t i o n s . 1 6 : · I ' I : 1 : , ) , 1 : - - - - O p e r a t i n g C o n d i t i o n S i n g l e Contingenc~ R e s u l t - - - - - - - - - - - - - - - - - - - - - - - - - - - - ---~ O n e c i r c u i t oe~tage o f H a b a r a n a - [ h e r e m a ! l l l n g H a b a r a n a - A n u r a d h a p u r a ; \ n u r a d h a p u r a 1 3 2 k V T r a n ' > l l l i ' > s i o n L i n e 1 3 2 k V T r a n s m i s s i o n L i n e l o a d s t o 1 2 l _ g o o \1~ht P e a k O n e c i r c u i t o u t a g e o f A n u r a d h a p u r a - : \ e \ \ A n u r a d h a p u r a 1 3 2 h . V T r a n s m i ' > s i o n L i n e T h e r c ' m a l n m g A n u r a d h a p u r a - : \ e 1 1 T r a n s m i s s i o n L i n e i \ n u r a d h a r u n 1 I ~2h.V l o a d s t o 1 2 : 1 . 7 " o D a 1 f J c a ! - _ O n e c i r c u i t o u t a g e o f K a p p a l t h u r a i - [ r i n c o 1~2KV T r a n s m i s s i o n L i n e T h e r e m a i n i n g K a p p a l t h u r a i - T r i n c o 1 3 2 h . V T r a n s m i s s i o n L i n e l o a d s t o I ( ) I " o T a b l e 2 . 9 C o n t i n g e n c y R e s u l t s f o r T r a n s m i s s i o n : \ ' e t w o r k s w i t h o u t : \ ' e \ \ H a b a r a n a S S l h e r e ' ' L ' r L ' n o \ o l t a g e c r i t e r i a \ i o l a t i o n o b s e r \ e d u n d e r s i n g k c o n t i n g e n c ) o p e r a t i n g c o n d i t i o n s d u r i n g : ' \ i g h t P e a k a n d D a y P e a k . ( A n n e x 1 3 summari~:c t h e p l a n n i n g c r · i t e r i a ) 2 . 5 E c o n o m i c A n a l y s i s o f A l t e r n a t i v e 2 2 0 k V T r a n s m i s s i o n : \ ' e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 1 6 2 . 5 . 1 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t K i r i n d i w c l a S w i t c h i n g S t a t i o n ! a b l e 2 . 1 0 i l l u s t r a t e s t h e b a s e c o s t e s t i m a t i o n o f t h e t r a n s m i s s i o n n e t w o r k c o n f i g u r a t i o n \ \ i t h o u t K i r i n d i w e l a S \ \ i t c h i n g S t a t i o n . E s t i m a t e d D e s c r i p t i o n B a s e C o s t I ( M i l l i o n L K R ) I C o n s t r u c t i o n o f l r i n c o P m 1 c r S t a t i o n S l \ i t c h ] a r d I 0 I 5 . 0 \ u g m e n t a t i o n o f T r i n c o C i r i c ! S u b s t a t i o n ~9.~ 1 C ' o i h t r u c t i o n o f : \ c 1 v H a b a r a n a 2 2 0 : 3 2 k \ ' S 1 \ i t c h i n g S t a t i o n 1 5 0 0 . 9 \ u g m e n t a t i o n o f V c y a n g o d a ( ! r i d Sub~tation 2 0 5 . 5 C u n ' > t r u c t i o n o f : \ r a n g a l a 2 2 0 l 3 2 k \ S 1 1 i t c h i n g S t a t i o n ! 3 R . l . R Cun~truction o f T r i n c o m a l c c P S - l r i n c o m a l e c C i S : 3 2 k \ ' t r a n s m i s s i o n l i n c ( 2 8 k m I 7 9 : . 2 C o n , t n : c t i o n o f ' l r i n c o P S - \ n 1 f ! a b a r a n a S S 2 2 0 k V t r a n s m i s s i o n l i n c ( 9 5 k m J 594-~.0 C d n s t n 1 c t i n n o f \ e w l ! a b a r a n a S S - \ e ; a n g o d a C i S 2 2 0 k \ t r a n s m i s , i o n l i n e I . 4 5 ; - ; . m I 9 0 7 2 . 3 ( o ! I s t r u c • i o n o f d o u b l e i n - o u t c o n n e c t i o n l i · o m R i y a g a m a - P a n n i p i t i y a 2 2 0 k \ T : · . l i n e ' u c o n n e c t . \ r a n g a l a S S ( 0 . 5 k m l . 9 . 3 C u n - , t i L : c t i o n o f . \ r a n g a l a S S - K o l o n n a \ \ a C i S : 3 2 k \ ' t r a n s m i s s i o n l i n e ( 1 0 . 4 K m l 2 9 3 . 9 C u n s t 1 · u . : t i L 1 n o L \ r a n g a l a S S - . \ t h u r u g i r i ; a C i S ; 3 2 h . \ ' t r a n s m i s s i o n I i n c ( 3 . 6 K : 1 1 ) : ( ) ; . 7 C o ! l s t r u c : t i u n o f \ C ) a n g o d a C i S - \ r a n g a l z : S S 2 2 0 k \ ' t r a n s m i s s i o n l i n e ( 4 7 . 5 k m ) 2 9 7 2 . 0 T o t a l E s t i m a t e d B a s e C o s t 2 3 . 3 4 9 . 1 - - - - - - - - - - - - - - - - - - - - - - - - - I a h i e 2 . 1 0 B a - . e C o s t E s t i m a t i o n o f · 1 r a n s m i s s i o n i ' i e t w o r k C o n f i g u r a t i o n - ' ' i t h o u t K i r i n d h \ e l a S S i n ~car 2 0 1 6 1 7 I i : 1 , \ 1 p t i o n h a s t h e b a s e c o s t e s t i m a t i o n o f 2 3 . . i 4 9 . 1 \ J 1 i l l i o n L K R . l I l l p r o j e c t e x e c u t i o n p e r i o d i s c o n s i d e r e d a s : c a r : 2 0 1 4 t o 2 0 1 6 . I m c s t m c n t t s ~~~ lup~._'d t o b e d i s b u r s e d a t 2 0 ° i t J . 7 0 ( 1 < J . 1 0 % s p r e a d o w r t h r e e : e a r s . D e s c r i p t i o n T o t a l 2 0 1 4 2 0 1 5 2 0 1 6 r - i 5 < t c , < : C o s t r c . ! 7 6 ! 8 3:'2~ 1 2 3 3 3 ! 7 6 2 L . C . 5 7 3 ! !!~6 ~0!2 : ' 7 3 " r 1 c c l s c n l a t i o n F . C . 32~6 : ' : ' 8 2 3 0 7 3 8 ! L . C . 5 0 0 2 8 3 0 3 5 6 ! 6 ! ! , . ' " ' u b T o t a l I F . C . 2 0 8 6 5 - H 1 8 2 1 4 6 4 0 2 1 4 3 L . C . 1 0 7 3 2 1 9 7 6 7 5 7 2 1 1 8 4 r - ! l ' : 1 : c ; i c a l C o n t i n g e n c i e s ! O ' ' o 1 - . C . 2 0 8 6 ~08 !~6~ 2!~ L . C . ! 0 7 3 ! 9 8 7 : ' 7 ! 1 8 r - - ' " ' u b T o t a l 2 F . C . 2 2 9 5 1 4 4 9 0 1 6 1 0 4 2 3 5 8 I L . C . I 1 8 0 6 2 1 7 3 8 3 2 9 1 3 0 3 ! \ d m i n i s t r a t i ' v e C o s t L . C . 8 0 3 ! 5 7 :'6~ 8 3 I F C l ] 9 ) I . J . J 9 ( ) f ( ) J ( ) . J } . ] 5 8 \ I o ! u l ! J c ( i m . : I . L T i c s L C / ] 6 ! ! 9 } . 3 3 ! ! 8 8 9 3 1 3 8 5 i I . c \ i e s L . C . 8 2 6 1 6 2 5 8 0 8 5 F . C . 2 2 9 5 1 . 1 4 4 9 0 1 6 1 0 4 2 3 5 8 ( , r a n d T o t a l L . C . 1 3 4 3 5 . I 2 4 9 2 9 4 7 3 1 4 7 0 : Y l L K R 3 6 , 3 8 6 . 2 l a b l e 2 . 1 1 T o t a l C o s t E s t i m a t i o n o f T r a n s m i s s i o n : \ e t w o r l i . C o n f i g u r a t i o n - w i t h o u t K i r i n d i w e l a S S i n _ v e a r 2 0 1 6 i n y e a r 2 0 1 6 \ , , : , ) r d i n g t o t h e T a b l e 2 . 1 1 . t o t a l p r o j e c t c o s t e s t i m a t i o n C o r T r a n s m i s s i o n : \ e t w o r k ( , l n l i t ? - u r a t i o n - v \ i t h o u t K i r i n d i \ \ e l a S S i n _ y e a r 2 0 1 6 i s 3 6 . 3 R 6 . : 2 : \ 1 1 i l l i o n L K R 2 . : ' . 2 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t : \ e w H a b a r a n a S w i t c h i n g S t a t i o n 1 . J n , , · 2 . 1 2 i l l u s t r a t e s t h e b a s e c o s t e s t i m a t i o n l l f t h e t r a n s m i s s i o n n e t \ \ o r k , ,111li~uration \ \ i t h o u t : ' ' < e \ \ l l a h a r a n a s w i t c h i n g S t a t i o n . \ R , , , I U~APv U " I V E R S ! T V [ l r M U I V \ ' f U W A . S R i l A I U • ~·:::'C ~'\. T I''\'~ E s t i m a t e d D e s c r i p t i o n I B a s e C o s t ( V l i l l i o n L K R ) (,l\1S~t·uction n i " T r ! n c o l \ l \ l c r S t a t i o n S 1 1 i t c h ; a r d 1 0 ( , 9 . 9 .\c:gt~lcnta:iun o l ' ! : · : n c o ( i r i d S u b s t a t i o n - + 9 . 5 \ u : 2 n ; c n t a t i o r ; oi'~c\\ . \ t l u r a d h a p u r a 2 2 0 · 1 . 1 2 · n L \ ' C i S . ' 5 7 . 9 \ t : ! c ' ! l 1 C t 1 t < t t i o n o ' V c ; a n : 2 o d a ( i r i d S u b s t a t i o n 2 0 : ' \ . 5 ( L l i 1 S l i ' U C t i o t : o r , \ r a n g a l c t 2 2 0 1 3 2 k \ ' S \ \ i t c h i t : g S t ; l t : o r ; 13~CU\ ( , , n s t r u c • , i o n o i ' l ( i r i n d i i i C l a 2 2 0 1 3 2 L \ ' S 1 1 i t c h i n g S t a t i o • 1 - f h 5 . - + ( O t ' S l r c ; c t i n n n i l r i n c o m a k c l ' S - T r i n c o m a ! c c C r S 1 - ' : 2 : . . . \ · t r a n s m i s s i o n linL·(2~i-..tn) 7 9 1 . 2 ( P n s t r ; ; c t i n n n ! T r i n c o l ' S - V c ; a n g o d a ( i S 2 2 0 " \ ' t r c : n s m i s s i o : 1 l i n e ( 2 - + 0 k m l 1 5 0 1 6 . 3 ( '-'l1' 7 6 1 3 1 5 - ! 6 0 3 6 ) 8 ~-- ! i ' : i c c h c a l a t i o n F . C . 3 ' : > 2 0 6 0 ) 2 ) 0 1 - l i - l L . C . ) 7 3 9 9 ) 2 - ! 0 8 ) 7 0 2 l . . . , u h T o t a l I F . C . 2 2 6 2 3 . t . t 2 6 1 5 8 7 3 2 3 2 - l L . C . 1 2 3 1 4 2 2 6 7 8 6 8 8 1 3 5 9 1 1 . I ' . . ' F . C . 2 2 6 2 - l - l 3 1 5 8 7 ' ) 0 ' ) _ _ 1 _ 1 ' : 1 ; . s 1 c a C o n t r n g c n c l c s I ( ) ' o L . C . 1 2 3 1 2 2 7 8 6 9 1 3 6 ~ I F . C . 2 4 8 8 5 4 8 6 8 1 7 4 6 1 2 5 5 6 : . . , u b T o t a l 2 L . C . 1 3 5 4 6 2 4 9 4 9 5 5 7 1 4 9 5 i . \ d m i n i s t r a t i v c C u s t I . . C . 8 7 1 1 7 0 6 1 1 8 9 i F C l - 1 8 8 J - 1 8 0 8 I - 1 0 1 l J 5 f ) ) l u l u ! ! J l ' ( n r e f v l ' h ' l { , , ( ' 1 - 1 - 1 / - ] ( j ( j - 1 1 0 / 0 8 / 5 8 - I [ C \ i c s L . C . 8 9 6 1 7 5 6 2 9 9 2 F . C . 2 4 8 8 5 . 2 4 8 6 8 1 7 4 6 1 2 5 5 6 ' ( , r a n d T o t a l L . C . 1 5 3 1 2 . 7 2 8 3 9 1 0 7 9 7 1 6 7 6 : \ 1 L K R 4 0 , 1 9 7 . 8 I a b l e 2 . 1 J T o t a l C o s t E s t i m a t i o n o f T r a n s m i s s i o n ' l l ' t \ \ o r l - C o n f i g u r a t i o n - \ \ i t h o u t ' l c " H a h a r a n a S S i n y e a r 2 0 1 6 t , _ . . t ' l , A 1 . . . , - t . . J ' 1 · 1 1 9 \ c c o r c l i n g t o t h e T a b l e 2 . 1 3 t o t a l p r o j e c t c o s t e s t i m a t i o n f o r T r a n s m i s s i o n : \ e t w o r k ( ( 1 1 1 l t g u r a t i o n - \ \ i t h o u t : \ e w H a b a r a n a S S i n y e a r 2 0 1 6 i s 4 0 . 1 9 7 . X M i l l i o n L K R 2 . 6 E v a l u a t i o n o f t h e R e s u l t s o f A l t e r n a t i v e T r a n s m i s s i o n 1 \ ' e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 1 6 2 . 6 . 1 T r a n s m i s s i o n : \ ' c t w o r k w i t h t h e n e w L o a d s o f \ ' o r t h c r n P r o v i n c e . I h e t o t a l a d d i t i o n o f l o a d t o t h e s y s t e m a c c o r d i n g t o t h e p r e s e n t : \ o r t h e r n p l a n I s 2 0 . : ' \ \ 1 \ \ ' A c c o r d i n g t o t h e L o a d f o r e c a s t l 1 J . t h e 2 0 1 6 p O \ \ e r s y s t e m ? \ i g h t p e a k I S 172(1.3\~\\'. T h c r e l ' o r e t h e n e w n o r t h e r n l o a d s a r e o n l y 0 . 5 S C Y < ) o f e s t i m a t e d n i g h t p e a k i n : c a r 2 0 1 6 . S t e a d ) s t a t e a n a l y s i s o r T r a n s m i s s i o n : \ e t v v o r k c o n f i g u r a t i o n w i t h t h e L o a d s o f L i b e r a t e d A r e a s o f : \ o r t h e r n P r o \ i n c c r e \ c a l s t h a t n o m o d i f i c a t i o n s t o t h e p r o p o s e d n e t w o r k a r e n e c e s s a r y d u e t o a d d i t i o n o f l l C \ \ : \ o r t h e r n l o a d s . 2 . 6 . 2 T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t K i r i n d i w e l a S w i t c h i n g S t a t i o n \ c c o r d i n g t o t h e L o a d F l c m s t u d i e s a n d c o n t i n g e n c y a n a l y s i s . t h e r e w e r e n o ~igniticant d i t f e r e n c e s h c t v - , e c n 2 2 0 k V T r a n s m i s s i o n : \ e t \ \ o r k c o n f i g u r a t i o n s w i t h a n d ' ' i t h o u t K i r i n d i w e l a S S . T r a n s m i s s i o n l o s s e s \ \ e r e a l m o s t s a m e f o r m o c a s e s . l r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n w i t h a n d \ \ i t h o u t K i r i n d i \ v e l a S S h a s e s t i m a t e d t o t a l c o s t o f 3 7 . 0 5 5 . 4 M i l l i o n L K R a n d 3 6 . 3 8 6 . 2 M i l l i o n L K R r c s p e c t i \ · e l y . T h e r e f o r e c t t o t a l a m o u n t o f 6 6 9 . 2 M i l l i o n L K R ( 1 . 8 % ) s m e s d u e t o i m p l e m e n t a t i o n o f t m n s m i s s i o n n c m o r k c o n f i g u r a t i o n \ \ i t h o u t K i r i n d i w c l a S S . B u t T r a n s i e n t s t a t e - . , t . d i e s s h o u l d h e c o n d u c t e d h e C o r e a t i n a ! c o n c l u s i o n . : : : . i d T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - W i t h o u t : ' l e w H a h a r a n a S w i t c h i n g S t a t i o n \ c c P r d i n g t o t h e L o a d F l o w s t u d i e s a n d c o n t i n g c n c : a n a l y s i s . t h e r e \ \ e r e m o r e \ : < l l a t i o n s i n t h e 2 2 0 k V T r a n s m i s s i o n \ : e m o r k \ \ i t h o u t \ : e \ \ H a h a r a n a S S t h a n ~lmtiguration ' ' i t h : \ e \ \ I l a b a r a n a S S . T r a n s m i s s i o n l o s s e s \ \ e r e a l s o h i g h i n t h e c a s e . 1 1 2 2 0 k V l r a n s m i s s i o n \ J e t w o r k \ \ i t h o u t \ : n \ H a h a r a n a S S . E c o n o m i c a n a l y s i s : ' - ' \ c a l s t h a t t h e a d d i t i o n a l c o s t o f 3 . 1 4 2 A \ 1 i l l i o n L K R ( X . 5 % ) s h o u l d b e i m e s t c d f o r · h e I ransmis~ion 1 \ c t \ \ o r k c o n f i g u r a t i o n \ \ i t h o u t : \ c \ \ H a h a r a n a S S . l ' h e r e f o r c t h i s . 1 1 l t i o n d o c s n o t s h O \ \ a n y a d v a n t a g e O \ C r t h e o r i g i n a l p r o p o s e d c o n f i g u r a t i o n . l \ l ' l 1 l 0 \ a l o f \ : e \ \ l l a h a r a n a S S f r o m t h e T r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n i s n o t t l ' l ' < H n t n e n d c d d u e t o a b o \ c r e s u l t s . 2 0 2 . 7 T r a n s i e n t S t a b i l i t y A n a l y s i s o f T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n - - W i t h o u t K i r i n d i w e l a S w i t c h i n g S t a t i o n I r a n s i c n t s t a b i l i t y o f t h e 2 2 0 k V t r a n s m i s s i o n n e t w o r k \ \ i t h a n d w i t h o u t K i r i n d i w c l a S \ \ i t c h i n g S t a t i o n i n y e a r 2 0 1 6 u n d e r n i g h t p e a k a n d d a y p e a k l o a d o p e r a t i n g c o n d i t i o n s \ v c r e i m e s t i g a t e d . S u c c e s s f u l a n d u n s u c c e s s f u l c l e a r i n g o f t h r e e p h a s e t~1ults i n c r i t i c a l l i n e s a n d o u t a g e o f g e n e r a t o r s a s d e p i c t e d i n t h e T a b l e 2 . 1 4 \ \ e r e ~tudied a n d s t a b i l i t y o f t h e s y s t e m w a s a s s e s s e d . l r i p p i n g s e 4 u e n c e s o f S u c c e s s t \ . l l R e - c l o s i n g ( S R ) a n d u n s u c c e s s f u l R c - c l o s i n g ( L ' S R ) ( l t t r a n s m i s s i o n c i r c u i t s c a n h e s u m m a r i z e d a s f o l l o w s . S u c c e s s f u l R e - c l o s i n g ( S R ) o f t r a n s m i s s i o n c i r c u i t s s e 4 u c n c e i s . l ~ U : F a u l t o c c u r s l ~ 1 2 0 m s : F a u l t c l e a r e d & c i r c u i t t r i p p e d T = 6 2 0 m s : C i r c u i t r e - c l o s c d n s u c c c s s t \ . ! 1 R e - c l o s i n g ( \ · S R ) o r t r a n s m i s s i o n c i r c u i t s s e q u e n c c i s . T = 0 : F a u l t o c c u r s 1 2 0 m s : C i r c u i t t r i p p e d ~620ms : C i r c u i t r c - c l o s e d \ \ i t h f a u l t l = 7 4 0 m s : C i r c u i t t r i p p e d n l e s s o t h e r w i s e s t a t e d s p e c i f i c a l l y . t h e c i r c u i t b r e a k e r o p e r a t i n g t i m e w a s c o n s i d e r e d d ' > l 2 0 m s a n d f i r s t r e - c l o s i n g t i m e i s c o n s i d e r e d a s 5 0 0 m s . r l Fault~ E l e m e n t F a u I t T y p e & L o c a t i o n R e s u l t s S \ \ i t c h i n g ! D a y P e a k I ' \ i g h t 1 P e a k I S e q u e n c e \ \ i t h I \ \ i t h o u t I \ \ i t h I \ \ i t h o u t l ' i r i n d i \ \ l ' l a h . i r i n d i " l ' l a h . i r i n d i \ \ l ' l a h . i r i n d i , H · 1 a 1 - - s n ~ph l~nd: ~11 , , , , s s S \ s s \ S s s \..?:1(~ l t ; 1 -L'(tr~la:L'L' P S - - - ~C\\ ; l · · ' r ' " " ' " ( , ' 7 > ( ) ' \ ' 1 ' : I · . , , I • • ' l • , L < . I o l o " ) - - t \ . > ) l o l . , , l : I I \ S l S R I : i n . : . P S \ l a c h i n e ~ I c ; s \lac:~'nc I ' \ U : ! r~ppi~1g . \ p p : : L ' l \ l l J L ' S \ - S v . ; t e m s t a h k S L - S : s t e m un~tabk s : - - " " S \ ' l S ' ) ' ) \ S ' i S ' > S ' ) \ ' l S l ' a b l e 2 . 1 - l T r a n s i e n t S t a b i l i t y A n a l y s i s R t · s u l t s o f T r i n c o m a l e e C o a l P < m e r P l a n t ( ; r i d C o n n e c t i o n - W i t h & W i t h o u t K i r i n d h \ e l a S " i t c h i n g S t a t i o n 2 1 i l \ c c o r d i n g t o t h e ! a b l e 2 . 1 4 n o s y s t e m t r a n s i e n t s t a b i l i t y i m p r O \ c m e n t h a s o b s e n e d \ \ I t h t h e i n c l u s i o n o f K i r i n d i w e l a S S . 2 . S F i n a l 2 2 0 k V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n f o r y e a r 2 0 1 6 S t u d \ \ \ a s c o n d u c t e d f o r ) c a r 2 0 1 6 s y s t e m w i t h 1 6 0 0 M \ V o f c o a l p m n . T p l a n t u n i t s ~~li1Ilected t o T r i n c l l l l l < l l c c s i t e . c o n s i d e r i n g t \ \ O d i f f e r e n t s y s t e m - l o a d i n g c o n d i t i o n s . I h n : c a l t c r n a t i \ e c o n t i g u r a t i o n s w e r e c o n s i d e r e d C o r a n a l y s i s . B u t o n l ) t h e u l n l i g u r a t i o n - w i t h o u t K i r i n d i w e l a o p t i o n \ \ a s s e l e c t e d a t t e r t h e s t e a d y s t a t e a n a l y s i s < t r i d e c o n o m i c a n a l ; s i s . h e n t h o u g h t h e c o n f i g u r a t i o n w i t h K i r i n d i w e l a s h o v , s s l i g h t 1 1 1 1 p r m e m e n t i n s y s t e m r e l i a b i l i t y a n d S ) s t e m l o s s s a v i n g s n o p l a n n i n g c r i t e r i a \ i , J J a t i o n s c a n b e o b s e n e e l w i t h o u t K i r i n d i w e l a c o n t i g u r a t i o n . A s C a r a s t h e t r a n s i e n t - . t a b i l i t y i s c o n c e r n e d b o t h s y s t e m s b e h m c s i m i l a r ! ) . f o l l o w i n g c r i t i c a l s y s t e m d i " t u r h a n c e s . T h u s . t h e c o n s t r u c t i o n o f K i r i n d i w e l a S S i s n o t n e c e s s a r y f o r t r a n s m i t p ( ) \ \ c r t i · 0 1 n p r o p o s e d T r i n c o m a l e e C o a l P o w e r P l a n t . F i g u r e 2 . 5 s h o w s t h e f i n a l t r a n s m i s s i o n n e t v , o r k c o n f i g u r a t i o n f o r y e a r 2 0 1 6 s y s t e m f o r T r i n c o m a l e e P l m e r P l a n t : . : r i d c o n n e c t i o n . I I Z e b r a 2 8 k m T R l ' \ C 0 . \ 1 A L E I • t - - - - e D - ~kV I J 2 k V - - - - - - - - - - - - - ~50+2x V A V C ' \ I A : 3 0 . 9 M W r l : \ - 1 W 8 K I L l 1 : \ 0 C H C H I I 6 . 5 : v i V v a r K A P I ~LTH C O A L S T E A TR~COMALE 0 0 M P S ~- : 1 7 : \ < I W ; • I 1 3 2 k V ~yvarl 2 x l 5 0 [ 1 V E Y A . \ ' G O D A ~ ~ 2 x 1 5 0 1 \ ' E W A : - . L J R A D H A P U R A ? A C \ i _ _ ; R A D I I A P I _ _ ; R A : \ 1 V A B I Y A G A . \ 1 A 2 2 0 k V 2 2 0 k V P A ' \ ' \ I P I T I Y A 2 2 0 k V 4 X Z e h r a 1 4 5 k m - - 1 3 2 k V 4 x Z e b r a , 9 5 k m 1 \ E W H A B A R A ' \ A 4 X Z e b r a , 4 7 . 5 k m 2 x 2 5 0 1 2 2 0 k V ~ - 132~V Z e b r a , S k m I H A B A R A . ' \ A L e g e n d A R A ' \ G A L A 2 2 0 k V 2 2 0 k V L i n e K O T M A L E A T H l . S R U G I R I Y A 1 3 2 k V L i n e 2 x 2 5 0 c : : O M V A Z c b r a , 3 . 6 k m [ I I 1 K O L O . ' \ : : \ A W A Z e b r a , 1 0 . 4 k m 1 3 2 k V I 1 3 d k v 3 3 k V L i n e T r a n s f o r m e r _ _ ; ( ) . _ _ 3 W d g A u t o ' C J T r a n s f o r m e r @ T h e r m a l P o w e r S t a t i o n F i t : u r e 2 . 5 F i n a l t r a n s m i s s i o n n t ' t \ \ o r k c o n f i g u r a t i o n f o r y e a r 2 0 1 6 s~stem f o r T r i n c o m a l e e P o w e r P l a n t g r i d c o n n e c t i o n . - - , - , _ _ , i l C h a p t e r 3 S e l e c t i o n o f T r i n c o m a l e e P o w e r P l a n t G r i d C o n n e c t i o n f o r ' e a r 2 0 2 0 I r c r n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n s c a p a b l e o f t r a n s m i t t i n g 2 2 0 0 \ i l W o f p o w e r u : - - 1 n g 2 2 0 k V a n d 4 0 0 k V a s t h e t r a n s m i s s i o n Y o l t a g e f r o m T r i n c o m a l e c C o a l P o \ \ e r P l a n t i n : c a r 2 0 2 0 \ \ e r e s e l e c t e d b a s e d o n t h e · · M a s t e r P l a n S t u d y o n t h e D e \ c l o p m e n t , 1 t p m \ e r G e n e r a t i o n a n d I r a n s m i s s i o n S y s t e m i n S r i L a n k a - . l a n u a r : 2 0 0 6 . . R e s u l t s I r o m C h a p t e r 2 \ \ e r e c o n s i d e r e d h e r e \ \ h e n s e l e c t i n g t r a n s m i s s i o n c o n f i g u r a t i o n s . ~ince t h e r e i s a p o s s i h i l i t y o f i n c r e a s e d p o w e r f 1 o \ \ f r o m P u t t l a m P S t o \ : e \ \ . \ n u r a d h a p u r a C i S a s a r e s u l t o r p o s s i b l e e x p a n s i o n b e y o n d 9 0 0 : ' v 1 W a t i \ o r o c h c h o l c i : - - i t e a n d i n \ i e \ \ o r t h e i n c r e a s e d c a p a c i t y o f t h e T r i n c o m a l e e P L ) \ \ e r P l a n t s . i t i s n o t t e a s i b k t o c o n s t r u c t a t r a n s m i s s i o n l i n e c o n n e c t i o n b e t w e e n T r i n c o m a l e e P c m e r P l a n t a n d ' - J e \ \ J \ n u r a d h a p u r a G S . i t i s a l s o n o t f e a s i b l e t o c o m c r t V a l a c h c h e n a i G S t o ~20kV o r 4 0 0 k V a n d t r a n s m i t p o \ \ e r f r o m t h e T r i n c o m a l e P o w e r P l a n t t o V a l a c h c h e n a i ( i S . T h e r e f o r e . H a b a r a n a G S w a s c o n s i d e r e d a s t h e m a i n n e t \ \ O r k c o n n e c t i o n p o i n t f o r t h e t r a n s m i s s i o n o f p m v e r f r o m T r i n c o m a l e e P O \ v e r P l a n t . J . l S e l e c t e d 2 2 0 k V a n d 4 0 0 k V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 2 0 ~.1.1 2 2 0 k V T r a n s m i s s i o n \ ' e t w o r k C o n f i g u r a t i o n ! " l i m \ i n g m o d i f i c a t i o n s \ \ e r e d o n e o n t h e 2 2 0 k V n e t w o r k c o n t i g u r a t i o n p r o p o s e d h ; 1 h e · \ l a s t e r P l a n S t u d y o n t h e D e \ c l o p m e n t o f p o w e r G e n e r a t i o n a n d T r a n s m i s s i o n S \ s t e m i n S r i L a n k a J a n u a r y 2 0 0 ( ) · f o r y e a r 2 0 2 0 . F i g u r e 3 . I i~ t h e 2 2 0 k V , · , m f i g u r a t i o n p r o p o s e d b ; t h e \ l a s t e r P l a n S t u d y . I i~ure . 1 . 2 s h O \ \ S t h e p r o p o s e d 2 2 0 \ - . v t r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n u r l r i n c u m a l e L ' C o a l P ( l \ \ e r P l a n t G r i d C o n n e c t i o n f o r y e a r 2 0 2 0 . . , . . . . , . . " " " ' , . . ; : , , ; : : · " ' > . ~·' . . \ . ; . . . ' . . . , _ · · ~ r . ' 0 ~ · · / .~ 2~ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - VEYA~GODA 2 x 1 5 0 : \ 1 V A 1 3 2 k V ~EW A ' \ C R A D H A P V R A 2 2 0 k V L - ( ] ) ~ 2 X Z e h r a , 1 4 5 k m 1 s E . : . : " " . : . : 0 < n , ; . . . . : : : . " ~ " - + 3 3 k V _ J _ 2 2 0 k V 4 x Z c h r a , 9 5 k m - . . W . . - - H - - - ' - . 4 . . . . . - 2 2 0 k V 2 X Z e b r a , 5 3 k m 3 x 2 5 0 T R I : ' \ C O \ t A L F : E P S :\tv~ ~~y 1 \ E W H A B A R A J \ " A I I I I I I K I R T I \ ' D I W E L A Z c h r a . 1 2 k m 2 2 0 k V 2 2 ( ) k \ , ; . . . . : : ; ; 3 x 2 5 0 \ _ _ y _ J M V A A M B l i L G A : v f A ~ -~kV . . . , - , ; . . . . : : : . " ~ ~ X ~.Rkm K O T M A L E 2 2 ( J k V " " 3 x 2 5 0 ~ \ t V A ( ( \ 1 ARA1\G~ A T H l ! R G G I R T Y A 1 3 2 k V E . : . : - o . . ; , ; . . . . : : : . " ~ Z e b r a , 4 k m ! ' A '\~!P!TTYA -~ 11 . L~ K O L O : \ : \ A W A _ Z e b r a , I 0 . 4 k m I - - - - - - - - - - - - - - - - 1 1 3 2 k V L e g e n d - - 2 2 ( ) k V L i n e - - 1 3 2 k V L i n e - - 3 3 k V L i n e - - - - 0 ) - - - - T r a n s f o r m e r _ _ . / ( } . . 3 W d g A u t o · 0 T r a n s f o r m e r 6 , ) T h e r m a l P o w e r S t a t i o n ~ i~ure 3 . I 2 2 0 k V t r a n s m i s s i o n n e t w o r k c o n f i g u r a t i o n o f T r i n c o m a l e e C o a l P o w e r P l a n t G r i d C o n n e c t i o n A c c o r d i n g t o t h e : v t a s t e r P l a n Stud~ \ L c o r d i n g . t o t h e F i g u r e . 1 . 1 . t h e r e a r e o n l y 6 0 0 \ 1 1 \ V o f c o a l f i . r c d r m v e r r l a n t u n i t s a t · t l ' l r i n c o m a l e e P o v v e r P l a n t s i t e . 2 5 V E Y A ' \ G O D A 1 \ E W A ' \ l J R A D H A P L R A 2 2 0 k v _ , . . . . . , . - - • 3 3 k V , . - - - - - . - ---cu-@S~x300 C O A L S T E A . ' \ 1 T R I " C 0 ' \ 1 A L E E P S f 2 x l 5 0 ' t V A - - - ( 0 ) - - i 4 X Z c b r a , l 4 5 k m E K l Y A G A M A 2 2 0 k V E . : s . r - - " ' " ' . . . . 0 " ' ~ > < . . . 2 X Z e b r a . 7 l k m A ' V ! B C L G A . \ 1 A . : s . 0 < r l " . . . . 0 ~ " 4 x Z e b r a , 9 5 k m I I I I I I I I 2 2 0 k V ~ 1 \ E W H A B A R A ! \ A E ~~ ~ 1 3 2 k V " . . . Z e b r a , 1 2 k m E ~~-ceT 3 x 2 5 0 : = : \ 1 V A - " ~ ~ L e g e n d [ 2 2 0 k V 2 2 0 k V Z c b r a , 4 k r n P A . \ . \ I P I T I Y A . . . . 0 " ~ X . . . ~.8km K O T ' V ! A L E 2 2 Q k V 3 x 2 5 0 i J : \ i V A A R A ' \ G A L A I ! A T H C R L ' G ! R I Y A - - + + - 1 3 2 k V E . : s . - a . . . ; " . . . ~ ~ K O L O ! \ ' \ A W A \ I Z e b r a , 1 0 . 4 k m I 1 3 2 k V I I - - - 2 2 0 k V L i n e 1 I - - - 1 3 2 k V L i n e 1 - - - - - - 3 3 k V L i n e 1 I - < J D - T r a n s f o r m e r I ~3WdgAuto' ' 0 T r a n s f o r m e r ! Q T h e r m a l \ P o w e r S t a t i o n [ I i g u r c 3 . 2 T h t • propo~cd 2 2 0 k V t r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n o f T r i n c o r n a l e c C o a l P o w e r P l a n t G r i d C o n n e c t i o n f o r y e a r 2 0 2 0 ' 1 1 ' - · s c o p e o f \ \ o r k f o r t h e p m \ e r t r a n s m i s s i o n t i · o m T r i n c o m a k e p o w e r s t a t i o n u s i n g '~llk V a s t h e t r a n s m i s s i o n \ o l t a g e c a n b e s u m m a r i z e d a s f o l l o w s . • ( ' o n s t r u c t i o n o f a 2 2 0 k V F o u r c i r c u i t 4 * / : e h r a . 9 5 k m l e n g t h t r a n s m i s s i o n l i n e f r o m l r i n e o m a k e r x m c r s t a t i o n t o : : \ e w 1 1 a h a r a n a s w i t c h i n g s t a t i o n . • C o n s t r u c t i o n o ! ' l r i n e o m a l c e P S S \ \ i t e h y a r d ( 2 2 0 k V d o u h l c h L t s b a r a r r a n g e m e n t \ \ i t h h u s c o u p l c r . 4 x 2 2 0 k V d o u b l e h u s h a r t r a n s m i s s i o n l i n e b a : s . 2 x 2 2 0 k V d o u b l e b u s h a r t r a n s f o r m e r b a y s . 2 x 1 5 0 \ 1 V A 2 2 W 1 3 2 k V t r a n s t < . m 1 1 e r s . l 3 2 k V d o u h k h u s h a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r . 2 x l 3 2 k V d o u b l e bu~ b a r r r a n - . , t < . m 1 1 e r b a : ) 2 ( ) • ( ~mstruction o f : \ e v \ I i a b a r a n a S S ( 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h b u s C \ l u p l c r . 3 x 2 : 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r h a y s . l C h 2 2 0 k V d m t h l e b u s b a r t : d n s m i s s i o n l i n e h a y s . 3 x 2 5 0 : V 1 V A 2 2 0 1 1 3 2 k V t r a n s f o r m e r s . 1 3 2 k \ d o u b l e b u s \ 1 c t r a r r a n g e m e n t V \ i t h b u s c o u p l e r . 3 x 1 3 2 k V d o u b l e b u s b a r t r a n s f o r m e r h a y s ) • ( t l l l s t r u c t i o n o f ~C\\ ! I a h a r a n a - V e y a n g o d a 2 2 0 k V t w o c i r c u i t 4 * Z c b r a . 1 - J . S k m k n g t h t r a n s m i s s i o n l i n e . • I k \ c l o p m c n t o f V c y a n g o d a G S ( - J . x 2 2 0 k V d o u b l e b u s b a r t r a n s m i s s i o n l i n e b a y s ) • ( \ l n s t n t c t i o n o f A m b u l g a m a ( i S ( 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t v v i t h a b u s ~.·uupler. 3 x 2 5 0 : v 1 V i \ 2 2 0 1 ! 3 2 k V t r a n s f o r m e r s . 3 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r h a y s . 4 x 2 2 0 k V d o u b l e b u s b a r t r a n s m i s s i o n l i n e b a ) s . l 3 2 k V s i n g l e h u s b a r a r r a n g e m e n t \ \ i t h b u s s e c t i o n b a y . 2 x l 3 2 k V t r a n s m i s s i o n l i n e b a y s . ' \ 1 3 2 k V t r a n s f o r m e r b a y s . ) • ( o n s t r u c t i o n o f A r a n g a l l a G S ( 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h a b u s c o u p l e r . 3 x 2 5 0 \ 1 V A t r a n s f o r m e r s . 3 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 6 x 2 2 0 k V d o u b l e b u s b a r t r a n s m i s s i o n l i n e b a y s . ! 3 2 k V S i n g l e b u s b a r a r r a n g e m e n t ' ' i t h b u s s e c t i o n . 4 x l 3 2 k V s i n g l e b u s b a r t r a n s m i s s i o n l i n e b a v s . 3 x 1 3 2 k V t r a n s f o r m e r b a y s . ) • C o n s t r u c t i o n o f V e y a n g o d a G S - A m h u l g a m a G S 2 2 0 k V t w o c i r c u i t 4 * l e b r a . . ~ 7 k m l e n g t h t r a n s m i s s i o n l i n e . • ( o n s t r u c t i o n o f A m b u l g a m a G S - A r a n g a l a G S 2 2 0 k V t \ \ O c i r c u i t 4 * Z c h r a . l l k m k n g t h t r a n s m i s s i o n l i n e . • I o n s t r u c t i o n o f A m b u l g a m a G S - A t h u r u g i r i y a C I S 1 3 2 k V l \ \ o c i r c u i t / . e b r a . 7 . X k m ' L ' t l g t h t r a n s m i s s i o n l i n e . • l u n s t r u c t i o n o f ! \ r a n g a l a G S - A t h u r u g i r i y a ( i S 1 3 2 k V t \ \ O c i r c u i t / e b r a . 3 . 6 k m i t . : n g t h t r a n s m i s s i o n l i n e . • ( o n s t r u c t i u n o t ' A r a n g a l a C J S - K o l o n n a \ \ a C i S 1 3 2 k V t \ \ O c i r c u i t / e h r a . I 0 . 4 k m k n g t h t r a n s m i s s i o n l i n e · ' - 1 . 2 - H I O k V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n \ . ; l~lr a s t i l \ . ' l r i n c o m a l e e p o V \ e r s t a t i o n i s c o n c e r n e d a t l e a s t 2 6 0 0 \ 1 V i \ o f p m \ e r h a s " ! l l ' t r a n s m i t t c d t o t h e l o a d c e n t e r \ \ h e n a l l 2 5 0 : v 1 W a n d 3 0 0 \ 1 \ \ g e n e r a t o r u n i t s a r e : • ) p c r a t i \ l n . I k n e e a t l e a s t o n e - t O O k V 4 x / e h r a t h r e e - c i r c u i t t r a n s m i s s i o n l i n e i s . . - q u i r c d t o t r a n " m i t t h e p m \ c r g e n e r a t e d i n T r i n c o r n a l e c p t m e r - . t a t i o n t u s a t i s t \ 2 7 ~~·curit\ c r i t e r i a ( A n n e x 1 ~ ) . l n d e r s u c h c i r c u m s t a n c e - . o n e p o s s i b l e n e t \ \ o r k cllnti~uration u s i n g 4 x Z e h r a . . . J . O O k V t r a n s m i s s i o n l i n e i s t u c o n n e c t t h e s a m e t o \ ~·: a n g o d a g r i d s u b s t a t i o n . I h e o t h e r p o s s i b i l i t y i s t o c o n s t r u c t a S \ \ i t c h i n g s t a t i o n a t ' \ l ' \ \ H a h a r a n a a n d c o n n e c t t h e . . . J . x Z e h r a 4 0 0 k V t r a n s m i s s i o n l i n e t ! · 0 1 n T r i n c o m a l c e 1 ' ( ) \ \ l ' r s t a t i o n t o : \ e \ \ I l a b a r a n a . l l m ' v e \ e r . l o a d t 1 o \ \ a n d c o n t i n g e n c y s t u d i e s \ \ e r e ci~,·crtained t h a t o n l y o n e . . . J . O O k V 2 x / . e h r a d o u b l e c i r c u i t t r a n s m i s s i o n l i n e i s s u f t i c i e n t : n l t l l \ c \ \ H a b a r a n a S \ \ i t c h i n g s t a t i o n t o V c y a n g o d a G S C o r t h e t r a n s m i s s i o n o f p c m e r t r \ l l l l I r i n c o m a l e e p o w e r s t a t i o n a n d t h e t r a n s m i s s i o n s y s t e m i s m o r e s t a b l e t o a - . h o r t , ' I L . ' l l l l f a u l t s i n 4 x Z e b r a . . . J . O O k V d o u b l e c i r c u i t t r a n s m i s s i o n l i n e . i f t h e r e i s a S \ \ i t c h i n g ' ' " t 1 o n a t \ e w H a b a r a n a . F i g u r e 3 . 2 i l l u s t r a t e t h e R e l a t i w R o t o r a n g l e \ a r i a t i o n t ' C l \ \ C c n u n c o f t h e T r i n c o m a l c e m a c h i n e s a n d o n e V i c t o r i a m a c h i n e w i t h o u t \ e \ \ l l a h a r a n a S S . i f t h e r e i s a t h r e e - p h a s e s h o r t c i r c u i t f a u l t i n o n e c i r c u i t o f t h e 4 0 0 k V : h r c c - c i r c u i t 4 x / . e b r a t r a n s m i s s i o n l i n e b e t w e e n T r i n c o m a l e c P S a n d V c y a n g o d a G S . ' · ·-~~~ ~ " ' " ' ' L l O O ¢ 3~ l o O < I O ' S . : S ¢ 0 1 . ) 7 . 7 ' { 1 { ) 0 f ( ! ' ! £ l S E C O N O S I F i g u r e 3 . 3 R c l a t i \ e R o t o r A n g l e \ a r i a t i o n , f o l l < m i n g a t h r e e - p h a s e s h o r t c i r c u i t f a u l t i n o n e c i r c u i t o f t h ( • ~001\Y t h r e e - c i r c u i t ~xZebra t r a n s m i s s i o n l i n e b l ' t \ \ e c n T r i n c o m a l e e P S a n d V e y a n g o d a G S i i l l l ' > . t h l ' . . . J . O O k V t r a n s m i s s i o n t l e l \ \ O r k c o n f i g u r a t i o n c o r n r n s t n g o r a S \ \ i t c h i n g ~l~ttiun a t \ c \ \ l i a b a r a n a . - 1 - \ . / c h r a - l - O O k V t h r e e c i r c u i t t r a n s m i s s i o n l i n e b e t w e e n 2 8 I n n c o m a \ e e p m w r s t a t i o n a n d : \ e v . H a h a r a n a S \ \ i t c h i n g s t a t i o n a n d a 4 0 0 k V 2 x / e h r a , j , 1 u h l e c i r c u i t t r a n s m i s s i o n l i n e b e t \ \ e e n \ : e \ \ H a h a r a n a s w i t c h i n g s t a t i o n a n d \ e : a n g o d a g r i d s u b s t a t i o n a r e s e l e c t e d f o r f u r t h e r s t u d i e s . F i g u r e 3 . 3 s h o v . s t h e n r o p o s e d 4 0 0 k V t r a n s m i s s i o n n e t w o r k c o n f i g u r a t i o n o f l r i n c o m a l e e C o a l P o \ \ e r f > i a n t ( i r i d C o n n e c t i o n f o r \ c a r 2 0 2 0 . 1 \ 2 1 - . \ \ I : Y . \ : \ ( i O D \ l 2 · d 5 0 ! - l \ I \ . \ l . h b ( l ~llllk\ f (0~.>-l:-~~ ~no"' : - \ ) \ I ~-- 2 \ l : i O I J 2 " ' \ ( \ \ 2\Jebra.l~5km - " • r . ~ ' \ ! : \ \ I I M l A R r \ ' \ A J \ 2 5 0 ( 0 \ I S I L \ \ I · 1 R l ' i C O \ L \ L E E I ' S 2 2 1 1 1 - . \ ; - ; n \ : \ ' \ L R : \ D I ! . \ P I R \ ~~ 2 2 0 k \ v _ _ ) i : : . \ l v 1 1 : 3 L i < i : \ M A ~"' / , l ' h r a . l 2 k m ? ! O k \ l l \ 1 \ . t \ . _ r~f\-,~ . h 2 S O \ . \ ) J \ 1 \ . \ ' / I , - ~ -Q~rlll , , , 7 . , H k m I - = t \ T i l l R l C d R ! \ \ ' l 1 2 k \ N ~~.v~- ~--~'1"" =~~ ~~ I 3 \ 2 5 0 I 7 \ ' I ] - " \ I \ \ \ . _ \ ) J ; \ I ( \ ' \ ( , \ ! , - · ~ J ~ I \ . ( i f ( ) \ ; ' \ \ \ \ \ ! / _ d J r a , i 0 . - . J k m I I J 2 h \ 1 3 2 " \ s 2 2 0 h \ L e g l ' n d - l O O k \ ' L i n e 2 2 0 1 < \ L i n e I J 2 k \ L i n e - - - . l 3 1 - . \ l . i m · · r r a n , f o r m e r ; I \ _ 1 \ \ d o . \ u t o _ , " ( _ _ _ _ { · l . r a n S f · ( J r m e r ( : c ) l l w r m a l P o " e r S t a t i o n F i g u r e . 3 A T h e p r o p o s e d - W O k V t r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n o f T r i n c o m a l e c C o a l P < m c r P l a n t G r i d C o n n e c t i o n f o r ~ear 2 0 2 0 I h l ' t o t a l s c o p e o f v \ o r k f o r t h e p o w e r t r a n s m i : - ; s i o n t ' r o m T r i n c o m a l e e p m \ e r s t a t i o n . i f ! h e t r a n s m i s s i o n \ o l t a g e o f 4 0 0 k V i s s e l e c t e d c a n h e s u m m a r i . 1 e d a s f < J l l O \ \ s . • C o n s t r u c t i o n o f a 4 0 0 k V t h r e e c i r c u i t - 1 * / d m . L 9 ) k r n l e n g t h t r a n s m i s s i o n l i n e ! ! · o m T r i n c o m a l c e p O \ \ e r s t a t i o n t o : \ e \ \ I [ a h a r a n a S \ \ i t c h i n g s t a t i o n . • C o n s t r u c t i o n o f T r i n c o m a l c c P S S \ \ i t c h y a r d ( - l - 0 0 k V d o u h l e h u s b a r a r r a n g e m e n t ' ' i t h h u s c o u p l e r . J x 4 0 0 k V d o u b l e h u s h a r t r a n s m i s s i o n l i n e h a Y s . 2 x - t O O k V 2 9 d o u b l e b u s b a r t r a n s f o r m e r b a v s . 2 x 1 5 0 \ I ! V A 4 0 0 / 1 3 2 k V t r a n s ! ( x m e r s . 1 3 2 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h b u s c o u p l e r . 2 x 1 3 2 k V d o u b l e b u s b a r t r a n s f o r m e r h a y ) • C o n s t r u c t i o n o f \ ' e \ \ I l a b a r a n a S S ( 4 0 0 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h b u s c o u p l e r . 2 x 2 5 0 : V 1 V A 4 0 0 / 2 2 0 k V t r a n s f o r m e r s . 5 x 4 0 0 k V d o u b l e b u s b a r t r a n s f o r m e r h a y s . 2 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 3 x 2 5 0 \ I ! V A 4 0 0 / 1 3 2 k V t r a n s f o r m e r s . 3 x 1 3 2 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 5 x 4 0 0 k V d o u b l e b u s b a r T r a n s m i s s i o n L i n e b a y s . 4 x 2 2 0 k V d o u b l e b u s b a r T r a n s m i s s i o n L i n e b a y s . 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t \ Y i t h b u s c o u p l e r . 1 3 2 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r ) • C o n s t r u c t i o n o f \ ' n \ H a b a r a n a - V e y a n g o d a 4 0 0 k V t w o c i r c u i t 2 * 7 c b r a . 1 4 5 k m l e n g t h t r a n s m i s s i o n l i n e . • D e v e l o p m e n t o f V c y a n g o d a G S ( 4 0 0 k V d o u b l e b u s b a r a r r a n g e m e n t \ \ i t h b u s c o u p l e r . 3 x 2 5 0 : V I V A 4 0 0 / 2 2 0 k V t r a n s f o r m e r s . 3 x 4 0 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 3 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 2 x . 4 0 0 k V d o u b l e b u s b a r t r a n s m i s s i o n l i n e b a y s ) • C o n s t r u c t i o n o f ; \ m b u l g a m a G S ( 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h a b u s c o u p l e r . 3 x 2 5 0 \ 1 1 V ; \ 2 2 0 1 1 3 2 k V t r a n s f o r m e r s . 3 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a y s . 4 x . 2 2 0 k V d o u b l e b u s b a r t r a n s m i s s i o n l i n e b a y s . 1 3 2 k V s i n g l e b u s b a r a r r a n g e m e n t w i t h b u s s e c t i o n b a y . 2 x . 1 3 2 k V t r a n s m i s s i o n l i n e b a y s . 3 x l 3 2 k V t r a n s f o r m e r b a y s . ) • C o n s t r u c t i o n o f A r a n g a l l a C I S ( 2 2 0 k V d o u b l e b u s b a r a r r a n g e m e n t w i t h a b u s c o u p l e r . 3 x 2 5 0 : V 1 V ; \ t r a n s f o r m e r s . 3 x 2 2 0 k V d o u b l e b u s b a r t r a n s f o r m e r b a ) s . 6 x : 2 2 0 k V d o u b k b u s b a r t r a n s m i s s i o n l i n e b a y s . 1 3 2 k V S i n g k b u s b a r a r r a n g e m e n t \ \ i t h b u s s e c t i o n . . . f ' \ l 3 2 k V s i n g l e b u s b a r t r a n s m i s s i o n [ i n c b a \ s . 3 x l 3 2 k V t r a n s f o r m e r b a : s . ) • C o n s t r u c t i o n o f A r a n g a l a ( ! S - A t h u r u g i r i y a G S 1 3 2 k V t \ \ O c i r c u i t / e b r a . 3 . 6 k m l e n g t h t r a n s m i s s i o n [ i n c . • C o n s t r u c t i o n o f A r a n g a l a G S - K o l o n m m a C J S 1 3 2 k V 1 \ \ 0 c i r c u i t Z e b r a . 1 O A k m l e n g t h t r a n s m i s s i o n l i n e • C o n s t r u c t i o n o f V C ) < m g o d a ( i S - A m b u l g a m a C i S 2 2 0 k V t \ \ o c i r c u i t 4 * Z e b r a . 3 7 k m l e n g t h t r a n s m i s s i o n l i n e . 3 0 • C o n : - . t r u c t i o n o f A m b u l g a m a G S - 1 \ r a n g a l a G S 2 2 0 k V l \ \ O c i r c u i t 4 * / e b r a . 1 1 k m l e n g t h t r a n s m i s s i o n l i n e . • C o n : - . t r u c t i o n o f A m b u l g a m a C i S - A t h u r u g i r i y a G S 1 3 2 k V t \ \ O c i r c u i t / e h r a . 7 . 8 k m k n g t h t r a n s m i s s i o n l i n e 3 . 2 S t e a d y S t a t e A n a l y s i s o f t h e S e l e c t e d T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 2 0 l h e l o a d f l o w a n d s i n g l e c o n t i n g e n c y a n a l y s i s w e r e c o n d u c t e d d u r i n g s t e a d \ s t a t e a n a l ) s i s o f s e l e c t e d t r a n s m i s s i o n n e t v . . o r k s . l h e m a i n o b j e c t i v e o f t h e l o a d t l o w s t u d : i s t o d e t e r m i n e t h e s t e a d y s t a t e p e r f o r m a n c e o f t h e p m \ c r s y s t e m . T h e p o t e n t i a l p r o b l e m s s u c h a s u n a c c e p t a b l e \ o l t a g e c o n d i t i o n s a n d m e r l o a d i n g o f t r a n s m i s s i o n n e t \ \ o r k e l e m e n t s w e r e i d e n t i f i e d t i · o m l o a d f 1 0 \ \ s t u d i e s . ! h e a d o p t e d c o n t i n g e n c y l e v e l f o r t h e p l a n n i n g p u r p o s e i s . \ ' - 1 . i . e . a f t e r o u t a g e o f a n y o n e e l e m e n t o f t h e t r a n s m i s s i o n s y s t e m a t a t i m e . t h e s y s t e m s h o u l d b e a b l e t o m e e t t h e d i s t r i b u t i o n d e m a n d w h i l e m a i n t a i n i n g t h e a c c e p t a b l e b u s b a r \ o l t a g e l e v e l s a n d l o a d i n g o f a l l t h e c l e m e n t s s h o u l d n o t e \ . c e e d t h e i r e m e r g e n c y r a t i n g s p e c i f i e d . l h e \ o l t a g c c r i t e r i o n d e f i n e s t h e p e r m i t t e d \ o l t a g e d e \ i a t i o n a t a n y l i \ c b u s b a r o f t h e n e t \ \ o r k u n d e r n o r m a l a n d s i n g l e c o n t i n g e n c y o p e r a t i n g c o n d i t i o n s a s g i v e n i n t a b l e J . l . H u s b a r V o l t a g e A l l o \ \ a b l e Volt~_t:~arin(Y~l- _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ -~()_l'!!~lii_O _ [ ) ~rli t i r l _ g C o 11~ i t i o 1 1 - - - ' - _ _ _ _ _ _ S i n_g~ ( _ ' < _ > !!_t_i_ll_g i l l i s ! \ \ oltag~.? a n d t h c r m a l c r i t c r i a . " I .1~ • R e c o n s t r u c t i o n o f X 2 . 3 k m l ' k u w e l a - 1 I a h a r a n a l 3 2 k V d o u h k c i r c u i t t r a n s m i s s i o n l i n e u s i n g Z c h n 1 C o n d u c t o r . • I n s t a l l a n o t h e r l O : V h a r . \ o l t a g c c o n t r o l k d b r e a k e r s w i t c h e d c a p a c i t o r s a t P a l k k e l e 3 3 k V b u s . • R e c o n s t r u c t i o n o f 1 . 5 k m . \ J e w i \ n u r a d h a p u r a - ; \ n u r a d h a p u r a l 3 2 k V d o u b l e c i r c u i t L y n x l i n e u s i n g Z e b r a c o n d u c t o r . 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S i n g l e C o n t i n g c n c _ \ < l n e c i r c u i t o u t a g e o f ; \ r a n g a l a - l ' < m n i p i t i a ; . 2 2 0 k V T r a n s m i s s i o n L i n e V o l t a g e o n B u s B a r s ( p . u . ) - - - - - - - - - -~ - - - - - - - - - - - - - ~ - - - - - - - - D a y \ " i g h t B u s B a r P e a k P e a k A r a n g a l a 0 9 8 1 0 . 9 6 7 P a n n i p i t i y a 0 . 9 7 7 0 . 9 6 0 L o a d i n g o n t h e r e m a i n i n g c i r c u i t ( ' Y , , ) D a y P e a k \ " i g h t P e a k 7 ! 0 o 1 0 : ' 0 o - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - · · - - --+--~--- - - - - - - - - - t - - - - - - - - - - - - - + - - - - - - · · · B i y a g a m a 0 . 9 8 9 0 . 9 7 4 A r a n g a l a 0 . 9 6 8 0 . 9 6 6 7 ° o l . " 0 o ( l n e c i r c u i t o u t a g e o f K o t u g o d a - H i ; . a g a m a 2 2 0 k V T r a n s m i s s i o n l i n e Pannipi~iya 0.98~----~63 _ _ _ _ ~----------+-------- < l : 1 e c i r c u i t o u t a , c e o f B i ; . a g a m a - A r a n g a l a ~20k V T r a n s m i s s i o n L i n e < l n t : c i r c u i t o u t a g t : o l · V e ; . a n g o d a - \ m b u l g a m a 2 : 2 0 k V T r a n ' - l m i s s i o n L i n e A r a n g a l a 0 . 9 8 8 P a n n i p i t i y a 0 . 9 8 6 B i y a g a m a 0 . 9 8 8 A r a n g a l a 0 . 9 8 6 P a n n i p i t i ; . a ~- 0 . 9 8 4 0 . 9 6 3 0 . 9 6 0 0 . 9 7 2 0 . 9 6 2 0 . 9 5 9 1 V e \ a n i . > , o d a 0 . 9 9 0 . 9 7 3 ( l n t : c i t - c u i t o u t a g e o f : \ e \ \ l l a b a r a n a - 1 Bi;aga~11a 0 . 9 8 4 0 . 9 7 1 \ t : \ a n ' - ' o d a 4 0 0 k V Tratl';mi~sion L i n e A r a n ' - ' a l a 0 . 9 8 3 0 . 9 6 2 - ~ I ~ _ _ _ _ -----~------l Pannipiti>a~Q:9Jl_l_ _ - + - _ ( _ ) . 9 5 9 _ ~-"~ , 1 1 n c ' c i r c u i t o u t a g e o f A r a n g a l a - A r a n g a l a 0 . 9 8 6 0 . 9 6 5 \~~:buiga:na 2 2 0 k V l r a n s m i - , s i o n L i n e P a n n i p i t i ; . a 0 . 9 8 : ' 0 . 9 6 1 - , ' " " ' 0 _ ) _ ) 0 9 ° o 2 4 ° o I 0 " o -----~ · - - - - - - - - - - - - - - - - - - - - - · - - - - - - - - - + - - - - ------+-~-- - - - - - + - - - - ' ( l n c J c i t - c u i t o u t a g e o t - F 7 c b r a c c t o f I r i n c n - ' \ c \ \ l l a b a r a n a - f O O k V ! r · < t r b m i - , , i o n l . i n c V e y a n g o d a 0 . 9 8 _ i B i y a g a m a A r a n g a l a P a n n i p i t i y a 0 . 9 8 6 ( ) 9 8 . " 0 . 9 8 3 0 . 9 7 - f ( ) 9 7 3 ( L 9 6 - f ( ) 9 6 1 1 - l " o 9 2 ° o " ) ' 0 _ _ ) 0 3 2 ° o I I ( ) - t I ) ~0°o T a h l c . 3 . . 3 V o l t a g e L e n i s a n d L o a d i n g C o n d i t i o n s a f t e r o u t a g e o f c r i t i l ' a l 2 2 0 k V ' " \ ( - W O k V T r a n s m i s s i o n L i n e s o f s e l e c t e d 4 0 0 1 - ; V C o n f i g u r a t i o n " - o \ i o l a t i o n o ! ' h u s b a r \ o l t a g e s o r l o a d i n g c o n d i t i o n s c a n h e o b s c n c d a f t e r o u t a g e o f c r i t i c a l 2 2 0 k V a n d - l - O O k V t r a n s m i s s i o n l i n e s w i t h r e s p e c t t o p l a n n i n g c r i t e r i a s p e c i f i e d h ; t h e L o n g l c r m I r a n s m i s s i o n D e v e l o p m e n t P l a n ( A n n e \ 1 3 ) . ' ' _ " ' ' _ ) T r a n s m i s s i o n S y s t e m L o s s e s I r a n s m i s s i o n s y s t e m l o s s e s u n d e r \ : i g h t p e a k a n d D a y p e a k l o a d s c e n a n o s a r c m e n t i o n h e l m \ . ' \ i g h t P e a k l . o a d S c e n a r i o : 1 1 6 . 7 \ ! ! W ( 2 . 2 9 % o f l o t a l G e n e r a t i o n ) l ) a > P e a k L o a d S c e n a r i o : 5 4 . 9 : v ! W ( 1 . 5 4 ° 1 t J o f T o t a l G e n e r a t i o n ) 3 . 3 T r a n s i e n t S t a b i l i t y A n a l y s i s o f t h e S e l e c t e d T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 2 0 [ h e t r a n s i e n t s t a b i l i t y s t u d i e s \ \ e r e p e r f o r m e d i n o r d e r t o m a k e s u r e t h a t t h e s y s t e m \ \ i l l r e m a i n s t a b l e f o l l o v v i n g a s e \ e r e d i s t u r b a n c e . I r a n s i e n t s t a b i l i t y o f t h e 2 2 0 k V a n d 4 0 0 k V t r a n s m i s s i o n n e t \ \ o r k c o n f i g u r a t i o n i n \ c a r 2 0 2 0 u n d e r n i g h t p e a k a n d d a y p e a k l o a d o p e r a t i n g c o n d i t i o n s \ \ e r e i m e s t i g a t c d . S u c c e s s f u l a n d u n s u c c e s s f u l c l e a r i n g o f t h r e e p h a s e f~1ults ( 3 P f ) i n c r i t i c a l l i n e s \ \ a s - , t u d i e d a n d s t a b i l i t ) o f t h e s y s t e m a s s e s s e d . B o t h S u c c e s s f u l R c - c l o s i n g ( S R ) a n d u n s u c c c s s t ' u l R e - c l o s i n g ( L S R ) o f t r a n s m i s s i o n c i r c u i t s a n d t r i p p i n g o f g e n e r a t o r s \ \ e r e t a k e n i n t o a c c o u n t f o r t h e s t u d i e s . t : n l e s s o t h e r w i s e s t a t e d s p e c i f i c a l l y . t h e c i r c u i t b r e a k e r o p e r a t i n g t i m e i s c o n s i d e r e d a s I 2 0 m s a n d f i r s t r e - c l o s i n g t i m e i s c o n s i d e r e d a s 5 0 0 m s . 3 . 3 . 1 T r a n s i e n t S t a b i l i t y A n a l y s i s o f 2 2 0 k V T r a n s m i s s i o n : \ ' c t w o r k C o n f i g u r a t i o n : h e t r a n s i e n t s t a b i l i t Y r e s u l t s o f t h e 2 2 0 k V n e t \ \ o r k c o n f i g u r a t i o n a r e d e p i c t e d 1 1 1 I ~1hle 3 . 4 a n d A n n e x ; \ - 3 t o A n n e x A - 7 . Fault~ E k r n c n t F a u l t T y p e & L o c a t i o n - - - - - - - - - - - - - - - t - - - - - - 1 r [ n c o m a l e e f ' S \ : e \ \ ) f ' F a t I r i n c o m a l e e llc;bar t a b l c T a b l e 3 . - 1 T r a n s i e n t Stabilit~ Anal~sis R e s u l t s o f S e l e c t e d 2 2 0 k V T r a n s m i s s i o n \ ' e t w o r l \ C o n f i g u r a t i o n o f ~car 2 0 2 0 _ 1 4 I a h k 3 . - + a n d A n n e x A - 3 t o A n n e x A - 7 i l l u s t r a t e t h e s t a b i l i t y r e s u l t s i n ) ; i g h t P e a k c t n d D a y P e a k l o a d i n g s c e n a r i o s . S t a b i l i t y r e s u l t s d e m o n s t r a t e t h a t t h e 2 2 0 k V t r a n s m i s s i o n n e t v Y o r k c o n f i g u r a t i o n i s s t a b l e . . ~.3.2 T r a n s i e n t S t a b i l i t ) A n a l y s i s o f 4 0 0 k V T r a n s m i s s i o n ~ctwork C o n f i g u r a t i o n l h e t r a n s i e n t s t a b i l i t ) r e s u l t s o f t h e 4 0 0 k V n e t \ \ o r k c o n f i g u r a t i o n a r c d e p i c t e d m I a h i e 3 . 5 a n d A n n e x A - 8 t o A n n e x A - 1 2 . F a u l t T y p e & L o c a t i o n S \ \ i t c h i n g R e s u l t i n O p e r a t i n g C o n d i t i o n Fault~ E l e m e n t S e q u e n c e \ ' i g h t P e a k Da~ P e a k I r i n c o m a k e P S \ : e \ \ S R s s s s 3 f ' F a t [ r i n c o m a i c e - + - - - - - - - - - - - - - - - - - - - - - - - + - - H a b a m n a C i S 4 0 0 1 \ . V t x l i n e P S e n d L S R s s s s c c t . l - -------~ - -----~---- - - - - - - - - - - · · - - - - - - - - - - - - ----------~------------ - - - . ------+------~-------------!.-. · · - - - - - - - - - - - - - - - - - ! r i p p i n g o f o n e 3 0 0 M W u n i t < : t T r i n c o m a l e e P S : ' \ o t A p p l i c a b l e V~)~r~g~~J; - - - A m b u l g a m a ~-3PF a t V e y a n g o c ! a 2 2 0 k \ t x l i n e c c t . 1 C i S e n d : \ o t s s A p p l i c a b l e S R s s t ; S R s s - - - - - - - - - ----~-------------- -----·----+------··-------~ s s s s s s ' \ n \ H a b a r a n a - V e ) a n g o d a 3 P F a t : \ e \ \ I l a b a r a n a S R S S S S W O k V l " \ L i n e c c t I S S e n d L S R s s s s S S - S y s t e m s t a b l e S L - S y s t e m u n s t a b l e T a b l e 3 . 5 T r a n s i e n t S t a b i l i t y A n a l y s i s R e s u l t s o f S e l e c t e d - l O O k V T r a n s m i s s i o n ; \ ' e t w o r k C o n t 1 g u r a t i o n o f y e a r 2 0 2 0 r < l b k 3 . 5 a n d A n n e x A - 8 t o A n n e x A - 1 2 d e m o n s t r a t e t h e s t a b i l i t y r e s u l t s i n \ : i g h t 1 \ . ' a k a n d D a y P e a k l o a d i n g s c e n a r i o s . T h e s e r e s u l h r e \ e a l t h a t t h e . t O O k V t r a n s m i s s i o n n c t \ v o r k c o n f i g u r a t i o n i s s t a b l e . 3 . - t E c o n o m i c A n a l y s i s o f t h e S e l e c t e d T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s \ l l t h e i t e m s i n t h e s e c t i o n 3 . 1 . 1 . 1 . 1 . 2 . 3 . 2 . 1 . 3 . 2 . 2 \ \ e r e t a k e n i n t o a c c o u n t f o r t h e c a l c u l a t i o n o r c o s t s o f s e l e c t e d t r a n s m i s s i o n n e m o r k c o n f i g u r a t i o n . A l l c o s t s a r c i n \ , J i l l i o n I K R ( S r i L a n k a n R u p e e ) . l n i t c o s t s w e r e o b t a i n e d f r o m t h e 2 0 0 X c o s t d < I l a h a s e p r e p a r e d b y t h e T r a n s m i s s i o n P l a n n i n g S e c t i o n o f C I - · : L i . m d R e f e r e n c e s [ 4 \ . [ l l j a n d [ 1 0 ] . " - _ 1 ) B a s e c o s t d o c s n o t i n c l u d e t h e c o s t a s s o c i a t e d \ Y i t h u n c e r t a i n t i e s a n d r i s k s . I t c o m p r i s e u t t \ \ O c o m p o n e n t s n a m e d f o r e i g n C o s t ( F . C . ) C o m p o n e n t a n d L o c a l C o s t ( L . C . ) ( u m p o n c n t . l h e p r o j e c t c o m p l e t i o n p e r i o d i s c o n s i d e r e d a s t h r e e y e a r s a n d t h e p r o p o r t i o n o f d i s h u r s e m e n t o f p r o j e c t c o s t s a r c a s s u m e d a s 2 0 % . 7 0 % a n d I 0 ° l r 1 f o r t h e f i r s t . s e c o n d i l l l d t h i r d y e a r s r c s p c c t i \ c l ) . T o d e t e r m i n e t o t a l p r o j e c t c o s t . P r i c e E s c a l a t i o n s . l 1 h y s i c a l C o n t i n g e n c i e s . A d m i n i s t r a t i v e c o s t a n d L C \ i c s w i l l h e a d d e d . :~.-U B a s e C o s t E s t i m a t i o n o f 2 2 0 k V T r a n s m i s s i o n : \ ' e t w o r k C o n f i g u r a t i o n D e s n i p t i o n 2 2 0 k \ ' T r a n s m i s s i o n C o n n e c t i o n ( ' p n s t r u c t i o n o l · T t · i t i C ( l ! n a i c c 1 \ m c r S t a t i o n S 1 1 i t c h ) a r d C o n s t r u c t i o n o f \ : c 1 1 l l a b a : · c m a : 2 2 0 1 3 : 2 k V S 1 1 i t c h i n g S t a t i o n C o n s t r u c t i o n o i \ r c ; n g a : c : : 2 2 0 I . 1 2 k \ ' C i t · i , ! S u b s t a t i o : 1 C o n s t r u c : : o n o t ' i \ m h u l g a : ; J a 2 2 0 1 3 2 k V ( i r i d S u b s t a t i o n C o n c , t r u c t i o n o f I r i n c o : 1 1 a k L · I ' S · \ ! L ' I \ ! l a o a r a : 1 a S S 2 2 0 1 - . V T r , : t i s : n i s s i o t ; L i n e i ' J : i k m ) C ' o n s t r u c t i o t ; o t ' ' \ c 1 1 l l a h a r c : t i e l S S - \ ' c : a n g o d a C i S 2 : 2 0 1 - . \ ' I : · , n ; s n ; i s s i o n L i n e ( 1 - l : i J . . m ) ( · o n s t r u c t i o n o r · V c ; c : n g o d a C i S - \mbe~:gama C i S : 2 : 2 0 1 - . \ I r c : n , : ; ; i s S : o n I i n c ( 3 7 k m l C o n s t r u c c i P n o ! ' : \ m b u ! g u m a C i S - . \ r c : : 1 g a l a C i S : 2 : 2 0 1 - ; \ ' I r c u N 1 1 i s s i o n L i n e ( I I k m ) C o n s t r L : c t i o n o : · \ m h u i g < : ! 1 1 a C i S · \ t h u r u g i r i y a C i S U 2 k \ ' I ! ' l l ' 1 S ! l t : s s i o t ; ! i n c t n \ k m ) C o n s t r u c t i o n o i ' : \ r a n g c : l a S S · \ t h · . ; r u g i r i ; a ( i S 1 . ) 2 1 - ; V T r u : ' s n ; i s s i o n L i n e ( · ' , 6 : , : " ) < · o : l s t r u c t i o n o t ' . \ : ' a n g a : a C i S - 1 ' - o . o : c : J a l \ u C i S I 3 2 k V I : · u : 1 s m i s s i L m ! . i n c ( l O . - l k : 1 1 ) R e c o n s t r u c t i o n o i ' \ ' k m 1 c ! a - ! l a h a r < : ' E l 1 3 2 1 - . \ ' T r a n s m i s s i o t ; l . i • t c ft~~ttdlatioc B r c a k l ' r S \ \ i t d i c d C a p a c : t o r s a t t . . : . . u : · u n u g a l a ( T S R c c o n s t t · u c t i o n o r ' - . < : I I : \ m : r a d ; c : p u : · a - : \ : 1 u r a d h a p u r u 1 3 2 k \ ' I : · c l l l ' . : 1 1 i s s : o n L i n e ( 'on~truction o r ! ii~C l k t ) \ a t \·c~i~1god;.1 ( i S T o t a l E s t i m a t e d B a s e C o s t E s t i m a t e d B a s e C o s t ( M i l l i o n L K R ) t 1 6 6 . 4 : 2 0 - 1 2 . ( 1 l l J 0 6 . 0 I 7 : 1 0 . 3 6 7 X 7 . 5 I 0 3 : i l J . 9 : 2 6 - 1 3 . ) 7 X 5 . 9 23~.6 1 1 0 . 1 . l l ~.2 : 2 5 1 7 . X 6 0 . 7 - 1 5 . ' ) 2 2 1 . 5 3 0 , 9 3 5 . 1 T a b l e 3 . 6 B a s e ( o s t E s t i m a t i o n o f S e l e c t e d 2 2 0 1 \ V T r a n s m i s s i o n ' \ e t \ \ o r k ( o n f i g u r a t i o n o f y e a r 2 0 2 0 \ c c o r d i n g t o t h e · r a h l e -~.6 t n t a l h a s e c o s t e s t i m a t i o n o f t h e 2 2 0 k V t r a n s m i s s i o n : t l ' t \ \ o r k c o n f i g u r a t i o n i s 3 0 . 9 3 5 . 1 \ 1 i l l i o n L K R . 3 6 -~.-L2 B a s e C o s t E s t i m a t i o n o f 4 0 0 k V T r a n s m i s s i o n . \ ' c t w o r k C o n f i g u r a t i o n D e s c r i p t i o n - l O O k \ T r a n s m i s s i o n C o n n e c t i o n C o n : ; t r c : c t i o n o ! ' I r i n c o m a k c l ' l m c r S t a t i o n S 1 1 i t c h ; a r d C o t h t t c t c t i l l n o l · \ : c 1 1 l l a b a r a n a 4 0 0 ; 2 2 0 . 1 3 2 k V S 1 1 i : c h i n l ' S t a t i o n Co!1str~!ctior~ o t . \ r a n g a l a 2 2 0 ; 1 3 2 k V ( i r i d S u b s t a t i o n ( t H 1 , ! r ! t c t i u n o l . \ m b u i g a m a 2 2 0 1 3 2 k V < i r i d S u h s w t i o : 1 C t H h t ! · t : c t i o n o t " I r i n c o m a k c P S - \ : c 1 1 l l a h a r < t n a S ' i + O i l k V r · r a n s m i s - ; i n n I i r K ( I J 5 k t l 1 ) C o r ; : ; : n : c " t i n n , , : · ' \ l ' l l l l a h a r a m ; S S - \ \ : ; < m g o d a ( J S 4 0 0 i - ; V l r a n s m i s s i o n l i : ' c ' i 1 4 5 i c c t l l ) C o n s m : c ! i < H l o ! · V c ; a n g o d a C i S - . \ m h u i g a m a ( i S 2 2 0 ; ; V I r a n s m i s s i l ' l l I i n c ( 3 7h.~n) ( · u n : ; t r u c t i o r ; o : · A t E h u i g : t m a ( i S - i \ r 1 m g a i a ( i S 2 2 0 k V l r a n s m i s s i u n L i n c ( I I k m ) ( ' , m s t r u c t i o n o r . \ m h u i g a m a C i S - i \ t h u r u g i r i ; a C i S 1 3 2 \ - . : V T r 1 : n s m i s s i o n I i n c ( / ) \ k t l l ) C o n , t r c i c t i o n o f , \ r a n g a l a S S - : \ t h u r u l ' i r i , , t C i S 1 3 2 k V l r a n s m i s s i o n l . i n c ( 3 . 6 k m ) C · o : h l r c J c t i o n o t ' A r a n 1 2 a i a ( ! S - K o l o n n a 1 1 a C i S 1 . \ : 2 \ - . : \ ' T : - a n . s m i s s i o n L i n e ( 1 0 . 4 ) Rc:co!blr~lction o t ' l : k u m : l a - l l a h a r a n a l 3 2 k V T r a m m i s s i o n L i n e !:1~tallation B r e a k e r S \ \ i~chcd Capaci~nrs a t k : . L i n i l l a g a i a ( J S Rccpnstr~h:tilli~ o ! ' : \ c \ \ ; \ m ; r a t i h a p u r a - ; \ n u r a d h a p u r l i 1 3 2 K V l r 1 1 n s m i s s i o n ! . i n c <.:ugJ~;cc:ation o f \ ' c ; a n L ! . o d a L i S T o t a l E s t i m a t e d B a s e C o s t E s t i m a t e d B a s e C o s t ( : \ 1 L K R ) 1 : ' \ 1 1 . - f 3 7 1 ' . l J ] < ) ( ) ( J , O 1 7 3 0 . 3 l 6 2 l J O . O 1 2 3 1 1 . 5 2 6 4 3 . 5 n 5 . < J 2 3 : : 1 . 6 1 1 0 . 1 3 1 8 . 2 2 5 ! 7 . : : 1 · + 0 . 5 . ( ) , l ) l l J 3 5 . 5 - 1 6 . . 1 0 1 . 2 T a b l e 3 . 7 B a s e C o s t E s t i m a t i o n o f S e l e c t e d . t O O k Y T r a n s m i s s i o n ' i e n , o r k C o n f i g u r a t i o n o f ) c a r 2 0 2 0 \ c c o r d i n g t o t h e T a b l e 3 . 7 t o t a l b a s e c o s t c s t i m a t i o n o f t h e 4 0 0 k V t r a n s m i s s i o n n c t \ \ O r k c o n f i g u r a t i o n i s 4 6 . 1 0 1 . 2 \ ! ! i l l i o n I X R . r ' _.~~~~,;~~;:7..,..,., . . ~ ~7 ' · - L ' D i s b u r s e m e n t S c h e d u l e s a n d T o t a l C o s t E s t i m a t i o n o f t h e S e l e c t e d 2 2 0 k V T r a n s m i s s i o n : \ ' e t w o r k C o n f i g u r a t i o n s D e s c r i p t i o n T o t a l 2 0 1 8 2 0 1 9 2 0 2 0 I u t a I Ba~e C o s t o f t h e p r o j e c t F . C . : ? . 3 5 0 9 . 6 4 7 0 1 . 9 1 6 4 5 6 . 7 : ? . 3 5 1 . 0 L . C . 7 4 2 5 . 5 1 4 8 5 . 1 5 1 9 7 . 8 7 4 2 . 5 P r i c e L~calation I T 6 4 5 5 . 1 1 1 5 9 . 8 4 5 6 8 . 2 7 2 7 . \ L C 1 0 8 3 2 . 1 1 8 7 6 . 0 7 6 8 3 . 6 1 2 7 2 . 5 1 . . , u b T o t a l I F C 2996~. 7 5 8 6 1 . 7 2102~.9 3 0 7 8 . 0 1 L C 1 8 2 5 7 . 6 3 3 6 1 . l 1 2 8 8 U 2 0 1 5 . 0 1 f ' h ; , . ; i c a l c o n t i n g e n c ; . ( l 0 ° : o ) F C 2 9 9 6 . 5 5 8 6 . . 2 . 2 1 0 . 2 . 5 3 0 7 . 8 L C 1 8 . 2 5 . 8 3 3 6 . 1 \ . 2 8 8 . 1 2 0 1 . 5 S u b T o t a l 2 F C 3 2 9 6 1 . 2 6~~7.9 2 3 1 2 7 . 4 3 3 8 5 . 9 L C 2 0 0 8 3 . 3 3 6 9 7 . 2 1 4 1 6 9 . 6 2 2 1 6 . 5 A d m i n i s t r a t i \ e C o s t L C 9 8 8 . 8 \ 9 3 . 4 6 9 3 . 8 I 0 \ . 6 S u b T o t a l 3 F . C . 3 2 9 6 1 . 2 6~~7.9 2 3 1 2 7 A 3 3 8 5 . 9 L . C . 2 1 0 7 2 . 2 3 8 9 0 . 7 1~863.4 2 3 1 8 . 1 T a : \ e s a n d D u t i e s L . C . 1 1 8 6 . 6 . 2 3 . 2 . 1 8 3 . 2 . 6 1 2 1 . 9 c ; r a n d T o t a l F . C . 3 2 9 6 1 . 2 6~47.9 2 3 1 2 7 A 3 3 8 5 . 9 L . C . 2 2 2 5 8 . 8 ~122.8 1 5 6 9 6 . 0 H~O.O T n t a l C o s t : V I L K R ~5,2]0_ - · - - · · · - - - - - - - - - - f a b l e 3 . 8 T o t a l C o s t E s t i m a t i o n o f S e l e c t e d 2 2 0 1 \ . V T r a n s m i s s i o n : - . ; e t w o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 \ c c o r d i n g t o t h e T a b l e 3 . 8 T o t a l p r o j e c t c o s t e s t i m a t i o n C o r t h e 2 2 0 k V t r a n s m i s s i o n ! l t . . ' t \ \ o r k c o n f i g u r a t i o n i s 5 5 . 2 2 0 \ 1 i l l i o n L K R . J 8 .~.-L.t D i s b u r s e m e n t S c h e d u l e s a n d T o t a l C o s t E s t i m a t i o n o f t h e S e l e c t e d . t O O k V T r a n s m i s s i o n : \ c t w o r k C o n f i g u r a t i o n s D e s c r i p t i o n T o t a l 2 0 1 8 2 0 1 9 2 0 2 0 F . C . 3 5 0 4 6 . 4 7 0 0 9 . 3 2 4 5 3 2 . 5 3 5 0 4 . 6 I o t a l B a ' e C o s t o r t h e p r o j e c t L . C . I I 0 5 - 1 . 8 2 2 1 1 . 0 7 7 3 8 . 3 1 I 0 5 . 5 F C 9 6 2 2 . 8 1 7 2 9 . 0 6 8 1 0 . 0 1 0 8 3 . 9 l ' r i c e L s c a l a t i o n L C 1 6 1 2 6 . - 1 2 7 9 2 . 9 1 1 4 3 9 . 0 1 8 9 - 1 . 4 F C 4 4 6 6 9 . 3 8 7 3 8 . 3 3 1 3 4 2 . 5 - 1 5 8 8 . 5 S u b T o t a l I L C 2 7 1 8 1 . 2 5 0 0 3 . 9 1 9 1 7 7 . 4 2 9 9 9 . 9 F C - 1 - 1 6 6 . 9 8 7 3 . 8 3 1 3 4 . 2 4 5 8 . 9 P h ; s i c a ! contin~etlC\( I C n o ) L C 2 7 1 8 . 1 5 0 0 . 4 1 9 1 7 . 7 3 0 0 . 0 F C 4 9 1 3 6 . 2 9 6 1 2 . 1 3 4 4 7 6 . 7 5 0 4 7 . 4 S u b T o t a l 2 L C 2 9 8 9 9 . 3 5 5 0 4 . 3 2 1 0 9 5 . 1 3 2 9 9 . 9 A d m i n i s t r a t i v e C o s t L C 1 4 7 4 . 1 2 8 8 . 4 1 0 3 4 . 3 1 5 1 . 4 F . C . 4 9 1 3 6 . 2 9 6 1 2 . 1 3 4 4 7 6 . 7 5 0 4 7 . 4 S u b T o t a l 3 L . C . 3 1 3 7 3 . 4 5 7 9 2 . 6 2 2 1 2 9 . 4 3 4 5 1 . 3 T a : - . : e s a n d D u t i e s L . C . 1 7 6 8 . 9 3 4 6 . 0 1 2 4 ! . 2 1 8 1 . 7 F . C . 4 9 1 3 6 . 2 9 6 1 2 . 1 3 4 4 7 6 . 7 5 0 4 7 . 4 G r a n d T o t a l L . C . 3 3 1 4 2 . 3 6 1 3 8 . 7 2 3 3 7 0 . 6 3 6 3 3 . 0 T o t a l C o s t \ 1 L K R 8 2 , 2 7 8 T a b l e 3 . 9 T o t a l C o s t E s t i m a t i o n o f S e l e c t e d 4 0 0 1 \ V T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n o f y e a r 2 0 2 0 \ c c o r d i n g t o t h e T a b l e 3 . 9 T o t a l p r o j e c t c o s t e s t i m a t i o n f o r t h e . . J . O O k V t r a n s m i s s i o n t l l ' l v \ o r k c o n f i g u r a t i o n i s 8 2 2 7 8 \ 1 i l l i o n L K R . 3 A . 5 E c o n o m i c E v a l u a t i o n o f T r a n s m i s s i o n : \ e t w o r k C o n f i g u r a t i o n s f o r y e a r 2 0 2 0 r h e c a p i t a l c o s t c o u l d b e s a \ e d u s i n g 2 2 0 k V a s t h e t r a n s m i s s i o n \ o l t a g c f o r t h e i r i n c o m a l e e P m v c r P l a n t ( [ r i d C o n n e c t i o n i n s t e a d o f . . J . O O k V a s t h e t r a n s m i s s i o n ' u l t a g c B u t t h e t r a n s m i s s i o n l o s s e s \ \ e r e l m \ i n t h e c a s e o f 4 0 0 k V c o n f i g u r a t i o n t h a n . : : 2 0 1 - . . V c o n f i g u r a t i o n . ( T r a n s m i s s i o n : \ ' c t \ \ o r k ' ' i t h 2 2 0 k V Confi~uration a n d - l - O O k V c u n l i g u r a t i o n h a s t h e p e a k p m \ e r l o s s e s o r 1 3 0 . 5 : V i \ \ ' a n d 1 1 6 . 7 \ 1 \ \ ' r c s p c c t i \ c l ) . ) I O \ \ l o s s e s r e d u c e b o t h t h e p e a k d e m a n d a n d e n e r g : l o s s l e \ e l o f t h e n c t \ \ o r k . [ h c r d o r e i t \ \ a s n e c e s s a r : t o i m e s t i g a t c t h e e c o n o m i c \ i a b i l i t ) o f . . J . O O k V cnnti~uration \ \ i t h c o m p a r e t \ l 2 2 0 k V c o n f i g u r a t i o n . I n o r d e r t o d e t e r m i n e ' ' h c t h e r a d d i t i o n a l c a p i t a l e x p e n d i t u r e t o r e d u c e s ; s t e m l o s s e s c a n b e j u s t i f i e d . t h e u s u a l I L ' L j l l i r c m c n t i s [ ' o r t h e i m e s t i g a t i o n t o c o \ e r a t l e a s t t h e e c o n o m i c l i f e o f t h e p r o p o s e d ! L ' i n t ' o r c c m c n t s . F o r t h e T r a n s m i s s i o n : \ ' e t \ \ o r k r e i n f o r c e m e n t s . e c o n o m i c l i t e i s c l S ' > l l l l l e d t o h e - J . ( ) \ e a r s . : 1 9 E s t i m a t i o n o f : \ ' c t C o s t S a v i n g [ o s s s a \ i n g o f t h e p r o j e c t c o m p r i s e s o r t w o c o m p o n e n t s , n a m e l y E n e r g y c o s t s a v i n g ~md C a p a c i t y C o s t S a v i n g . ! o l l o w i n g p a r a m e t e r s \ v e r e u s e d i n t h i s e v a l u a t i o n . P e a k P m v e r L o s s S a \ i n g d u e t o 4 0 0 k V C o n f i g u r a t i o n - 1 3 . 8 : V 1 \ V f > e a k P m \ e r l o s s s a v i n g d u e t o i m p l e m e n t a t i o n o f 4 0 0 k V c o n f i g u r a t i o n w a s a s s u m e d t P b e c o n s t a n t t h r o u g h o u t t h e e c o n o m i c l i f e o f t h e c o n f i g u r a t i o n . I i f e t i m e o f T r a n s m i s s i o n : \ e t w o r k D e v e l o p m e n t - 4 0 \ e a r s I n t n c s t r a t e D i s c o u n t r a t e L n c r g y C o s t p e r k W h ( R s . ) C a p a c i t y C o s t p e r k W ( R s . ) 8 ( % p e r a n n u m 8 % ) p e r a n n u m 8 . 3 6 1 1 3 ] 1 7 . 5 6 7 [ 1 3 ] l . o a d t~1ctor \ a l u e s w e r e t a k e n f r o m · : - : a t i o n a l P o w e r a n d E n e r g y F o r e c a s t f o r y e a r 2 0 0 8 - 2 0 2 T 1 1 1 . F o r y e a r s o u t s i d e o f t h i s p e r i o d , L o a d F a c t o r s w e r e a s s u m e d t o b e e q u a l t o t h e y e a r 2 0 2 7 \ a l u e . S a h a g e \ a l u c o r T r a n s m i s s i o n n c t \ \ O r k d e \ c l o p m e n t a t t h e e n d o f t h e i r l i f e t i m e \ V a s t a k e n a s n e g l i g i b l e . l a b l e 3 . 1 0 i l l u s t r a t e s t h e c a l c u l a t i o n o f \ ' e t C o s t S a v i n g d u e t o i m p l e m e n t t h e 4 0 0 k V c o n f i g u r a t i o n i n s t e a d o f 2 2 0 k V c o n f i g u r a t i o n . E n e r g y C o s t S a v i n g \ n n u a l l - · n e r g y C o s t S a \ i n g ( . i \ E C S ) = . i \ L S * E n e r g y C o s t P e r k W h \ \ h c r l ' . \ L S i s t h e 1 \ n n u a l L o s s S m i n g . \ n n u a l l o s s S a v i n g ( . i \ L S ) = = P e a k L o s s S c l \ i n g * L L F * 2 4 * 3 6 5 \ \ h e r e . l o s s L o a d F a c t o r ( L L F ) = K * L F , ( l - K ) * L I · ' / ' , 2 1 , > 0 . 2 ( · K · ' ' a s t a k e n a s 0 . 2 f o r a L o a d C u n e h : : l \ i n g a s i n g l e r r e d o m i n a n t p e a k . T o h m i n g a p r e d o m i n a n t p e a k . n i g h t t i m e o r d a ) t i m e p e a k s h m t l c l h e m o r e t h a n ! . 5 t o 2 t i m e s t h e o t h e r . [ 4 ] ) l l l a d ! a c t o r T o t a l C o n s u m p t i o n o f a w a r ( P e a k l . o a d o f t h e s y s t e m * 2 4 * 3 6 5 ) 4 0 ( a l c u l a t e d E n e r g y l o s s s m i n g d u r i n g t h e l i f e t i m e o f t h e c o n f i g u r a t i o n v - a s d i s c o u n t e d h a c k t o p r e s e n t v a l u e ( P V ) . [ l V c R : I ( 1 + i ) 1 \ \ l K r l ' t - T h e y e a r o r t h e c a s h f 1 c m i - T h e d i s c o u n t r a t e R , - T h e E n e r g > C o s t S m i n g d u r i n g y e a r t ' \ c t P r e s e n t V a l u e ( : \ P V ) o f S a v i n g s \ \ a s c a l c u l a t e d h ) s u m m i n g P V o r a l l l o s s ' i < l \ i n g s d u r i n g l i f e t i m e . 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L l ~l) t ~t'J t ttl) I ft'J t Ltl t Lt-L +-. -..... - L, L t LtZ tztZ t LrZ t Zt Z t <:tz X XOt X XIJt 0 ~Ot LOOt Z: L6[ ( 'S(f 1'\) ('s(:J L'\) ( lJNd'\) SJJV S.)JV s·w ilu1 \ES SSOl 'jEJd (;l)()i: X tOt: LtOl tt()l xzoc: LcUZ '!Z:ill: c:z:oz IZ:Oc UCOl ~ E s t i m a t i o n o f T o t a l E x p e n d i t u r e T o t a l c a p i t a l i m c s t m e n t r e q u i r e d ( \ V i t h o u t ! ' a x ) f o r i m p l e m e n t 2 2 0 k V c o n f i g u r a t i o n d u r i n g y e a r 2 0 1 8 . 2 0 1 9 a n d 2 0 2 0 ' " i l l h e l OJ38.6~Rs. 3 79Sl0.8~Rs a n d 5704.0~v!Rs r e s p e c t i \ e l ) . F o r 4 0 0 k V t r a n s m i s s i o n n c t \ \ o r k c o n f i g u r a t i o n c a p i t a l i m c s t m c n t ( \ \ . i t h o u t T a x ) n e c e s s a r y f o r y e a r 2 0 1 8 . 2 0 1 S l a n d 2 0 2 0 w i l l h e l 5 4 0 4 . 7 : ' v 1 R s . 5 6 6 0 6 . 1 \ i R s a n d 8 4 9 8 . 6 \ ! I R s r e s p e c t i \ · e l y . T h e r e f o r e e x t r a c a p i t a l i m e s t m e n t r e q u i r e d f o r 4 0 0 k V c o n f i g u r a t i o n \ \ i l l h e 5 0 6 6 . 1 \ 1 R s . 18615.3~Rs a n d 2 7 9 4 . 7 \ i R s t ' o r \ e a r 2 0 1 8 . 2 0 1 9 a n d 2 0 2 0 . F o l l o w i n g p a r a m e t e r s w e r e u s e d i n t h i s c a l c u l a t i o n . A n n u a l o p e r a t i o n a n d m a i n t e n a n c e c o s t \ \ a s a s s u m e d t o h e 2 ( Y o o f t h e t o t a l i m c s t m e n t c o s t . I n t c r e s t r a t e - 8 % p e r a n n u m D i s c o u n t r a t e - 8 % p e r a n n u m l h c p a ) m e n t s C o r t h e l o a n \ \ e r e c o n s i d e r e d . b a s e d o n c o n s t a n t p a y m e n t s a n d c o n s t a n t i n t e r e s t r a t e . T a b l e ] . I I i l l u s t r a t e s t h e c a l c u l a t i o n o f p r e s e n t \ a l u c o f e x p e n d i t u r e s d u e t o i m p l e m e n t t h e 4 0 0 k V c o n f i g u r a t i o n i n s t e a d o f 2 2 0 k V c o n f i g u r a t i o n . 4 1 tt sJ.IIlllJHl,)th:J JO .1n1r.A lUJsJ.Id JO uo!lP.JI1.1Jr..) 11 ·r ...,,qr..1 --------+-----------------------+----------- z (,l) t :;·c-,c~ cc~~·qz -------------+---~----------r------~----r-----~--------' g \\i. l h() 1 ~ s·6L~ C6ftJl g~nz (J I(J LJ~rl<: ~--;-(-,Z;-------------r--(6t-9L--. -,------- ----+-----.j.------------------+------- ;::ell I ~ (--z:; L"h~-qz -----+--------------+------- ; 6L; /... h~-9l ;~nz -t------- t·;(;(: I ~liZ I 1;1JZ ---~-0ti:z- --+------· - '!L~ I ---+--------------+---- ;·(<::; C6t-9l Z ilL I ------~---:-----------+---------- he; L"6t-l/L l)j-IJZ l"(-{11 \:_ ----------+----------+---------·-+---------+---- ;·1 t·z ;: (,')! ~-;·he; L ht.9L ----------------···+---------------+--------------+-------------t----------------------+------------+------------- ()"();( C69: t-;·he; ,:.·(1[l)L t-~-oc ()OLe -.._r,- l I \JL ') 16<:: ~-------~----:· -------------;---------,-. --~----------------------..--------- h t-1 ~ c h'i it ~ 6e~ : L 6~0<: nrn~ -------+-----+----------------4---------+--------------+------------ : Ot-t L'hl)l t-~-()L~ ht"(;( +-------~t--------------· .. -+------- ~t-fll -----+--------· ----~-----····---~-------------+----- s hht-tt"(;( ------+--------------+· --------------+ -------+--------------+----------+-----. --------+-----· g 6't~ L 69 if ~-hz:~ !.."6t-9L ~-t-(IL . ------------~--------------------~--------~- (1 ZS~ ZNJ I l ; he~ Lh~'!Z ') helJ -..-·--·----------------.,... -------·---..-------------~---------------+------ l 691 ~-~-()L~ 1."6t-lJL lltiJc --------+---------+---------------+-----------------+--------+------------+----------+--------- F :~-L c 601 ~ ;·he:; L"h~·qc 6(1:l --------------+-------------+----------------·----t-----------+----------+---------------t-------------+----- 1Uk lf,lJlt-~-hz~ C()'t9Z ··-· ___ _.____ ~ 6(~ ----' L"hfl)(- l.hhh -----j-------- 1) 6LIII ----+--------- ~-;y I I o xLJt-1 i x~ I i l (J')I l -------+------- ~~t-l ------+----- l)"9ht {"~j J;\) .l.lrlllj)U0Ch-j _!() j~(\) ,\d\: (s~Jv\ l ·r.·d oos p, s0np;,, P.llUI10)';J(l (S}JJ;\) J.ltl)lpU:ld'\--j pmuuy I P)O I -+. ---------·--r---- ~ hZS L6l-'lc +------------+------+---------. --+--------·--- ~ r,z~ u,l-'l<: . -------+---··-·------- ~-6(~ L ht-9L ----------r-------------+---·--- l)tgz LthLL +-----------+---------------+--------------+------- ~ ~~t-L r-·g~gi t ~l9H! + ----------~~t)(;t-----------+--y-y(~t------+--L 900;- (StJJ;\) )SO:) .l:lUTillJ)llleJ;\j ::? un!ll'..J,)do pmuuy (S}j~A\) S)UJllllS0 \ LIJ llmuuv ('tJJ;\) )li0Lll \p,d \:muuv ( S(JJ;'.,:) Slll0llJ)SJ\llJ pmdr.,) szr:z 1'\J 0 :z Ci :I ....., , m ::0 :X 1 2 : lq ON ;\n nr \ \- 3 R ot or a n gl e v a ri at io n fo llo w in g a th re e- ph as e sh or t c ir cu it f au lt in o n e c ir cu it o ft hc 2 20 kV f ou r- ci rc ui t . . Jx Zc br a tr an sm is si on l in e be tw ee n T ri nc om al ee PS a n d N ew H ab ar an a SS . (2 20 kV N et w or k, y ea r 20 20 ,N ig ht P ea k) 55 - - - - - r- -·. -- T I - - ' \ ,.. ... /" \ I \' -/ '- ./ ~, _ . . - . . . . . _ - - .. .. .. .. .. - - - . . . _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - \_ , . . . Db OO l. 3 !l !l 3 D .O ' t. -: 50 00 l. -: 50 00 f( N E < I. DO DO 7 . s o o o lO .': liO O £S EC O N D 51 L~ Al OO 15 .0 11 0 lL ':l iO O FH J TO A L- IE D . AN II ] " Tl ~ r m . . C l . . / -u < II , .. . a :I (II ~ ; / Cl u : :I g 0 l;z - < .0 :r r T / a o c r 2a 2 oo q v r-1 A c rT " ll c rT ~ a c " " [] 1,. , ID . z D r ... . . '- " ~ U 'l . . . . . _ 1'\ ..l 0 1'\ ..l 0 :% ;::; :I : _ , " " [] m D :;< ; l Y : : 1 l ro N A nn ex A --t R ot or a n gl e v a ri at io n fo llo w in g a tr ip pi ng o f o n e 3 00 M W u n it a t T ri nc om al ce p ow er s ta tio n. (2 20 kV N et w or k. y ea r 20 20 . N ig ht P ea k) 56 IIT J . . . . . . , . - , C l . . _ , " " 0 . . . , . . . . a :: I (a -_ , _ , C l < C ::1 (l l .. 0 lz < .0 : r r T _ , a c ... . . - a c r r < .n a c - - . . _ _ _ . , . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - (L (I l' i: 'i 6 l. '5 0 0 0 ~- 50 <1 0 lO . ' 50 0 ~o~ Eo . o c r 2 a ;;w oq v r 7 . ~ 0 0 0 T (1' 1E !S E C O N D S I 0 A A n n n A -5 R ot or a n gl e v a ri at io n fo llo w in g a th re e ph as e s ho rt c ir cu it f au lt in o n e c ir cu it o f t he 2 20 liV t w o c ir cu it .t xZ cb ra tr an sm is si on l in e be tw ee n N ew H ab an w a SS a n d V ey an go da G S . . (2 20 kV N et w or k, y ea r 20 20 , N ig ht P ea k) 57 - u L., ID - " " D , . - . . . . . . U 'l U 'l . . . . . 1'\ .1 = 1'\ .1 . :: :. z C l : r . . . . . . - u , D :X ~II I] _ ,. . , , 1, q . 2o oq A N L f1 " T I ~II ] _ ,. . " "' , " ' 0 ::> Q l - _ ,. . . _ ,. . _ , , ' ; 0 a •:z "' • :X : : 0 c r Q l , ~ Ql ~ n n ...., •:z "' .. / C l u : ::> Q l "' ;:; "' I :z: ~ < .0 :r ::: ; 0 c a c I 1 : 2'- 1: T [ N " L., •:o " " . :0 r -< u 'l ;::;:; . . . . . " ' C l " - ' "" ' :z : Cl :X : _ , " m : 0 :: X A nn ex ; \- S R ot or a n gl e v a ri at io n fo llo w in g a th re e- ph as e s ho rt c ir cu it f au lt in o n e c ir cu it o f t he 2 20 kV f ou r- ci rc ui t - hZ eb ra t ra n sm is si on l im ' b et w ee n T ri nc om al cc PS a n d N ew H ab ar an a SS . ( 40 0k V N et w or k, y ea r 20 20 ,N ig ht P ea k) 60 - - " \\ t" "', _. ../ "'- ... .., .._ .-- -.. ._ _ _ _ _ _ _ _ _ _ _ . . . . - _ _ _ _ _ _ _ _ _ _ _ . - . . . . . - _ _ _ _ _ _ _ _ _ _ . . ,. .. . '- ' 3. !1 00 11 o .o •t .~ OO O t. ~o oo • • 0 !1 00 < L O M O 7 .: 5 0 0 0 TC H E !S EC O N O SI 1. :1 .0 00 1 0 . ~ 0 IS .O !I O 1] .~ ,1 0 TH U . o c r ;o q T A G " ' !II J . / ~ d ) , " ' a ::: 1 (10 :: " . / - t , 5 0 Q lz d ) • :X : : 0 < r 01 , ~ (10 ...... " .. _, lz d ) • . / C l t. C ::: 1 (10 ::1 n . . . . I z tL l :: r :;;: a c ;::; Q c r r 20 0' 1 r l ~ '- n In ::: 00 : D r - < U \ - U 'l - - - " ' = " ' "" ' z co :X : · ~ rn :: 0 ::0 :: 1 5 :0 8 N A nn ex A -9 R ot or a n gl e v a ri at io n fo llo w in g a tr ip pi ng o f o n e 3 00 M W u n it a t T ri nc om al ee p ow er s ta ti on . ( .tii Ok V N et w or k, y ea r 21 12 0. N ig ht P ea k) \· ':. :: , , ; •' - , . ,· , · \ ' • · · f • - ' ~ r ,~ ., : I ' . ; .. . ~ . . <~~ :~t .). / ' J" 61 G * (i r'\ n J IIi\ }'\ .. · ··· ··· ··· ··· ! . I ' ' ,· ·· ·· ·· ·· - _ _ I t, J \,Y\ \ /~ ~ ~ - - - - - - - - - - - - - - - - - - - - - - - - - - ~ \)1 9 , • . ,. . . _ _ / - \l 11 . / " I (L 0 L '5 0 0 0 " t . . ' S0 -0 10 ? .. : 5 0 0 0 l{ ). '5 {) {) f [H E !S E C O N D S I ,. , :I I] . . . . . . . . . , d l , " " a ::1 "' ::- - _ , , :: I 0 a ·= " ' -: r = c r "' , g: "' ..... " " . :;: dl .. _,.. = r - ~ "" "' ::' " . . . . . . ~ . . . . . . . - - . . . . . . . = _ _ , r\. .1 , "" ' ::> = n C l D ':z - . . . , • (T I :n :X :: ~ :n lT (I I , g: (II ....... ... ,. , - 1 ':z < I) . . . - - = u :: ::1 (I I ~ (' ) < II I c :l (I I u: = . . - - C l c r> - . C l c ... . . 1 6 ' 3 2 r to A nn ex A -l l R ot or a n gl e v a ri at io n fo llo w in g a th re e- ph as e s ho rt c ir cu it f au lt in o n e c ir cu it o f t he 2 20 kV f ou r- ci rc ui t . tx Z eb ra tr an sm is si on l in e be tw ee n T ri nc om al ee PS a n d N ew H ab ar an a SS . ( .tO Ok V N et w or l\, y ea r 20 20 ,D ay P ea k) 63 ,. , (t .. . \ " ' \ ~- ~ I. " :5 00 0 1 - - - - T· ~\!-.. ;" <' " " ' ' . . • . . . ~ ... . . . C -"-~ ~ ~ ~ ... - - - - . : : : . ; _ , N « ', ' t. 'S O O O J. :H IO () TC NE !S EC O N D 51 lO . " :5 00 ~III ] . / - n 0 c TU E. NO V 03 20 0q 10 :5 ~ A OA N A fl lA T I N -n ~ ID ""' D r -< U'l ~ U'l ...... ru c:J ru 0 Cl D -<. -n m .:0 ~ A nn ex A -1 2 R ot or a n gl e v a ri at io n fo llo w in g a th re e ph as e s ho rt c ir cu it f au lt in o n e c ir cu it o f t he 4 00 kV tw o c ir cu it 2 xZ eb ra t ra ns m is si on l in e be tw ee n N ew H ab ar an a SS a n d V ey an go da G S. (- HI Ok V N et \\ or k, y ea r 20 20 , D ay P ea k) 64 f ,. " - - ' ~ [/ ; C ) c ; :-: - ti ( : : I ; · I : , i A n n e ' A - 1 3 P l a n n i n g C r i t e r i a P l a n n i n g C r i t e r i a D u r i n g t h e t r a n s m i s s i o n d e \ e l o p m e n t p l a n n i n g . i t i s t a r g e t e d t o m e e t p l a n n i n g c r i t e r i a t o e n s u r e q u a l i t ) a n d r e l i a b l e s u p p l ) u n d e r n o r m a l o p e r a t i n g c o n d i t i o n s a s \ V e l ! a s u n d e r c o n t i n g e n c i e s . V o l t a g e c r i t e r i a ! h e \ O ] t a g e c r i t e r i o n d e f i n e s t h e p e r m i t t e d \ O ] t a g e d e \ i a t i o n a t a n ) l i \ e b u s b a r o f t h e n d \ \ O r k u n d e r n o r m a l o p e r a t i n g c o n d i t i o n s a s g i v e n i n t a b l e A - l . B u s b a r A l l o w a b l e v o l t a g e v a r i a t i o n ( 1 ~,) v o l t a g e : \ ' o r m a l o p e r a t i n g c o n d i t i o n S i n g l e c o n t i n g e n c y c o n d i t i o n 4 - 0 0 k V i ) l % i Y V o f ~--- ·-~-- - - - - - - - + - - 2 2 0 k v : : ! : ) % - 1 0 % t o + 5 % , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - - - - - - - - - - - - - - " - - - t - - - - - - - - - - - - - - 1 3 2 k v . ± 1 0 ° / t ) - - - - - - - - - - - - - - - - - - ------~----- - - - - - - - - - - - - - - - - - - - - - - · - - - - - - · - - - - - : : : : : 1 0 % T a b l e A - I : A l l o w a b l e v o l t a g e v a r i a t i o n s T h e r m a l c r i t e r i a r h c d e s i g n t h e r m a l c r i t e r i o n l i m i t s t h e l o a d i n g o r a n y t r a n s m i s s i o n n e t \ \ o r k c l e m e n t . i n o r d e r t o a \ o i d m c r h e a t i n g d u e t o O \ e r l o a d . T h e l o a d i n g o f e l e m e n t s s h o u l d n o t e x c e e d t h e i r r a t e d t h e r m a l l o a d i n g \ a l u e s f o r s t e a d ) s t a t e c o n d i t i o n s . S e c u r i ( v c r i t e r i a T h e p e r f o r m a n c e o f t h e t r a n s m i s s i o n s y s t e m u n d e r c o n t i n g e n c y s i t u a t i o n i s t a k e n i n t o c o n s i d e r a t i o n i n t h e s e c u r i t y c r i t e r i a . r h e a d o p t e d c o n t i n g e n c ) l e w ! f o r t h e p l a n n i n g p u r p o s e s i s \ ' - 1 . i . e . o u t a g e o f a n ) o n e e l e m e n t o f t h e t r a n s m i s s i o n S ) s t e m a t a t i m e . A f t e r o u t a g e o f ' a n y o n e e l e m e n t ( i . e . a n y o n e c i r c u i t o f a t r a n s m i s s i o n l i n e o r a t r a n : - , f o r m e r a n d \ \ i t h o u t a n ) a d j u s t m e n t o r c n r r e e t i \ c m e a s u r e ) . t h e s . : s t e m s h o u l d b e a b l e t o m e e t t h e d i s t r i b u t i o n d e m a n d v \ h i l e m a i n t a i n i n g t h e b u s b a r \ o l t a g e l e \ e l s a s g i w n i n T a b l e i \ - 1 a n d l o a d i n g o f a l 1 t h e r e m a i n i n g e l e m e n t s s h o u l d n o t e x c e e d t h e i r e m e r g e n c y r a t i n g s s p e c i l i e d . S t a b i l i ( l ' c r i t e r i a S t a h i ! i t ) c r i t e r i a s h o u l d e n s u r e t h e S ) s t e m s t a b i l i t ) d u r i n g a n d a f t e r a S ) s t e m d i s t u r b a n c e . ! ' o r a l l p e r t a i n i n g e q u i p m e n t i n s e n i c e . t h e s y s t e m : - , h o u l d r e m a i n s t a b l e i n c a s e o f : • l h r e e - p h a s e l~ndt a t a n . : o n e o \ e r h c a d l i n l ' t e r m i n a L c l e a r e d b y t h e p r i m a r _ : p r o t e c t i o n ' ' i t h s u c c e s s f u l a n d u n s u c c e s s f u l a u t o r e - c l o s i n g . • [ . o s s o f a n : o n e g e n e r a t i o n u n i t • L o a d r e j e c t i o n h _ : l o s s o f a n ) t r a n s f o r m e r . G e n e r a t o r d i s p a t c / 1 i n g 6 5