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Selection of negative-sequence current constant value for startup failure protection of generator transformer unit
Author(s): 
Pages: 83-85
Year: Issue:  7
Journal: RELAY

Keyword:  发变组启动失灵负序判据非全相整定计算序网络;
Abstract: 通过使用不对称分量法和故障过程中负序网络图,计算发变组主开关在一相拒合和一相拒分两种不同非全相过程中的负序电流量,比较发电机所能承受负序能力情况,分析发变组启动失灵保护负序电流判据整定计算与保护的灵敏度之间的关系,提出发变组启动失灵保护负序电流判据整定计算依据的建议,并提出了在发电机非全相时运行单位的处理措施和注意事项.
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