山西电力
山西電力
산서전력
SHANXI ELECTRIC POWER
2014年
4期
6-8
,共3页
发电机%定子接地保护%误动
髮電機%定子接地保護%誤動
발전궤%정자접지보호%오동
generator%stator grounding protection%mal-operation
针对山西省内多起大型发电机谐振引起定子接地保护误动的故障，介绍了故障发生时的情况，从发电机中性点消弧线圈挡位选择、发电机出口电压互感器等方面入手，分析了导致发电机定子接地保护误动的原因，最后提出避免大型发电机定子接地保护误动的措施和建议。
針對山西省內多起大型髮電機諧振引起定子接地保護誤動的故障，介紹瞭故障髮生時的情況，從髮電機中性點消弧線圈擋位選擇、髮電機齣口電壓互感器等方麵入手，分析瞭導緻髮電機定子接地保護誤動的原因，最後提齣避免大型髮電機定子接地保護誤動的措施和建議。
침대산서성내다기대형발전궤해진인기정자접지보호오동적고장，개소료고장발생시적정황，종발전궤중성점소호선권당위선택、발전궤출구전압호감기등방면입수，분석료도치발전궤정자접지보호오동적원인，최후제출피면대형발전궤정자접지보호오동적조시화건의。
Focusing on the faults of some large capacity generator stator ground protection mal-operation in Shanxi province,this paper briefly introduces the situations when the faults occurred. It analyses the causes leading to generator stator grounding protection mal-operation from the the aspects including gear selection of arc suppression coil at generator neutral point and voltage transformer at generator outlet.At last,the measures and suggestions for avoiding large capacity generator stator grounding protection mal-operation are put forward.
