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Typical abnormal cases analysis about earthing switches operation
Author(s): 
Pages: 125-127,132
Year: Issue:  23
Journal: Relay

Keyword:  接地闸刀联锁异常分析对策及建议;
Abstract: 接地闸刀是保证工作班成员安全的技术措施.在变电站现场发生接地闸刀拒合拒分可能影响停电和送电,甚至可能引起保护的误动作,导致严重事故.对500 kV岷珠变电站发生的几起由于联锁异常而导致接地闸刀拒动的实例进行了详细分析.根据分析结果,对接地闸刀联锁回路的管理、验收工作提出了对策和建议.
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