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Analysis of a 220 kV line trip caused by the developing fault
Pages: 105-108
Year: Issue:  23
Journal: Relay

Keyword:  LFP-901LFP-902发展性故障录波图;
Abstract: 分析了一起220 kV输电线路非典型发展性故障开关跳闸的一系列异常现象,此次跳闸后保护的动作情况比较复杂,表面现象扑朔迷离,甚至根据录波图看来保护有误动的嫌疑.然而,根据LFP-901和LFP-902的原理和故障时的录波图,对这些现象一个个去分析,论证了本次保护动作为正确动作.
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