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

Nishantha, JBA

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Master of Engineering in Electrical Engineering
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dc.contributor.advisor	Karunadasa, JP
dc.contributor.author	Nishantha, JBA
dc.date.accessioned	2012-05-11T14:12:29Z
dc.date.available	2012-05-11T14:12:29Z
dc.identifier.citation	Nishantha, 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.uri	http://dl.lib.mrt.ac.lk/handle/123/2054
dc.description	This 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.extent	29p	en_US
dc.language.iso	en	en_US
dc.subject	ELECTRICAL ENGINEERING-Thesis
dc.subject	ELECTRIC EXCITATION
dc.subject	ELECTRIC EXCITERS
dc.title	Detection of branch failures in the rotating rectifier of a brushless excitation system
dc.type	Thesis-Abstract
dc.identifier.faculty	Engineering	en_US
dc.identifier.degree	MEng	en_US
dc.identifier.department	Department of Electrical Engineering	en_US
dc.date.accept	2001-05
dc.identifier.accno	74389	en_US