水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2015年
1期
54-55
,共2页
定子匝间保护%连接部件%防范措施
定子匝間保護%連接部件%防範措施
정자잡간보호%련접부건%방범조시
stator inter-turn protection%connection parts%precautionary measures
就某电站2号机组发电机定子匝间保护动作导致事故停机，根据监控系统事故记录，检查发现导致事故跳闸的原因是发电机定子中性点B相引出线下分支软连接烧断所致。分析了可能原因，提出了具体改进措施。
就某電站2號機組髮電機定子匝間保護動作導緻事故停機，根據鑑控繫統事故記錄，檢查髮現導緻事故跳閘的原因是髮電機定子中性點B相引齣線下分支軟連接燒斷所緻。分析瞭可能原因，提齣瞭具體改進措施。
취모전참2호궤조발전궤정자잡간보호동작도치사고정궤，근거감공계통사고기록，검사발현도치사고도갑적원인시발전궤정자중성점B상인출선하분지연련접소단소치。분석료가능원인，제출료구체개진조시。
A tripping shutdown accident due to the inter-turn protection action in generator stator occurred in the No.2 generator unit in a hydropower station.Based on the monitoring data, the tripping accident is caused by the burnout of soft connection in lower branch of the phase B outgoing line from the stator neutral point.Possible reasons of the connec-tion burnout is analyzed and some improvement suggestions are proposed.
