中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2009年
7期
131-133
,共3页
切换采样原理%发电机转子%接地故障%电路设计
切換採樣原理%髮電機轉子%接地故障%電路設計
절환채양원리%발전궤전자%접지고장%전로설계
switch sampling principle%generator rotor%grounding fault%circuitry design
分析了切换式转子一点接地保护的原理,它通过两个静态开关一个闭合另一个断开建立两组数学方程,计算出接地点位置与接地过渡电阻阻值.论述了一种较佳的切换式转子一点接地保护方案,阐述了保护电路的设计思想,通过保护电路基本原理的分析,证实了该设计的实用价值.
分析瞭切換式轉子一點接地保護的原理,它通過兩箇靜態開關一箇閉閤另一箇斷開建立兩組數學方程,計算齣接地點位置與接地過渡電阻阻值.論述瞭一種較佳的切換式轉子一點接地保護方案,闡述瞭保護電路的設計思想,通過保護電路基本原理的分析,證實瞭該設計的實用價值.
분석료절환식전자일점접지보호적원리,타통과량개정태개관일개폐합령일개단개건립량조수학방정,계산출접지점위치여접지과도전조조치.논술료일충교가적절환식전자일점접지보호방안,천술료보호전로적설계사상,통과보호전로기본원리적분석,증실료해설계적실용개치.
This paper analyses switch sampling principles of the generator rotor grounding fault protection. By opening one switch and closing the other,two group equations are established to measure rotor grounding fault resistance and grounding fault location. A better plan of switch sampling protection for grounding fault of generator rotor and the design concept of protection circuitry are elab-orated through an analysis of protection circuitry basic principle. This pratical design value is confirmed.
