The Dependent transmission losses in national network

Abstract

Ceylon Electricity Board (CEB) has the responsibility of Transmission and most of the Generation and Distribution of electric power in Sri Lanka. Today, total technical and non technical losses (Energy losses) are around 15.67%. It is a large loss compared with losses in developed countries. Losses will also affect electricity tariff. At the end, it affects domestic, commercial and industrial consumers as well as Gross Domestic Product (GDP) of the country. Transmission losses are very important to future planning and design of the National Network. Losses should be minimized as much as possible. As Ceylon Electricity Board has not yet investigated time dependent transmission losses in National Electric Network accurately, this study focused on the following, • Study thirty minutes time interval transmission losses in National Network for a day. • Transmission network is modelled and simulated using MATLAB programme and calculation of power flow and transmission losses. • Analysis of the simulated results. Simulation results show that peak loss is recorded at 19.30 p.m. and amounting to 3.17% of total generation. Day minimum is recorded at 3.30 a.m. and minimum loss is 1.52% of total generation. Any time in between 0.00 a.m. to 24.00 midnight, Transmission losses vary from 1.52 % to 3.17 %.