Detection of branch failures in the rotating rectifier of a brushless excitation system

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dc.contributor.advisorKarunadasa, JP
dc.contributor.authorNishantha, JBA
dc.date.accept2001-05
dc.date.accessioned2012-05-11T14:12:29Z
dc.date.available2012-05-11T14:12:29Z
dc.descriptionThis research is about the principal of operation and the construction of a detector circuit to identify the branch failure conditions in the rotating diode bridge of a brushless excitation system. Brushless excitation is used in high-speed synchronous generators. The principal of detection is based on the harmonics present in the exciter field current. Different failure conditions give different contents of harmonics. By identifying harmonics it is possible to interpret the type of fault. The circuit that detects exciter harmonic following a failure in a diode branch gives an alarm or indication. This circuit can be applied to any brushless excitation system.
dc.format.extent29pen_US
dc.identifier.accno74389en_US
dc.identifier.citationNishantha, J.B.A. (2000). Detection of branch failures in the rotating rectifier of a brushless excitation system [Master's theses, University of Moratuwa]. Institutional Repository University of Moratuwa. http://dl.lib.mrt.ac.lk/handle/123/2054
dc.identifier.degreeMEngen_US
dc.identifier.departmentDepartment of Electrical Engineeringen_US
dc.identifier.facultyEngineeringen_US
dc.identifier.urihttp://dl.lib.mrt.ac.lk/handle/123/2054
dc.language.isoenen_US
dc.subjectELECTRICAL ENGINEERING-Thesis
dc.subjectELECTRIC EXCITATION
dc.subjectELECTRIC EXCITERS
dc.titleDetection of branch failures in the rotating rectifier of a brushless excitation system
dc.typeThesis-Abstract

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Master of Engineering in Electrical Engineering