水力发电2017，Vol.43Issue(9)：73-76,4.
发电机短路试验中转子接地保护误动作分析及关键问题探讨
Misoperation Analysis and Discussion on Key Problems of Rotor Grounding Protection in Generator Short-circuit Test
摘要
Abstract
In view of the misoperation of rotor one-point grounding protection in short-circuit test of self-excited shunt hydrogenerating set,the theoretic analysis on the principles of excitation system and relay protection are carried out and the operating characteristics of transformer and the influences of high harmonic are investigated.Through field test and recording voltage waveform,the reasons of protection malfunction are found out and corresponding treatment measures are put forward.On this basis,the key problems and precautions in short-circuit test of hydro-generator are also discussed.关键词
发电机短路试验/转子接地保护/误动作Key words
generator short-circuit test/rotor grounding protection/misoperation分类
信息技术与安全科学引用本文复制引用
向方伟..发电机短路试验中转子接地保护误动作分析及关键问题探讨[J].水力发电,2017,43(9):73-76,4.
