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Considerable Problems about Field Application of Relay Protection for 220 kV Power Transformer
Author(s): 
Pages: 56-58
Year: Issue:  1
Journal: GUANGXI ELECTRIC POWER

Keyword:  断路器失灵保护死区电流互感器;
Abstract: 对超高压主变保护在现场运行及检修中存在的几个问题(旁路开关代主变侧开关运行中主变差动保护存在死区、主变启动失灵回路中电流判据、旁路代运主变高压侧开关失灵回路的改进等)进行了研究,并针对这些问题提出注意事项以及改进措施.
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