微机母线保护安装及投运时需注意的问题

Observing Problems on Building and Commission of Micro-computer Bus Protection

根据母线保护的原理,分析了安装时接地铜排与接地网的连接,二次电缆屏蔽层两端接地等需注意的问题及投运时各间隔跳闸回路的接入,带负荷测试母线差动保护等问题,以避免带缺陷投运。

On the basis of bus protection principle, this paper analyzes the problems during installation from aspects of the connection between grounding copper lines and grounding net, grounding of secondary cable shield floor, and the problems during operation from aspect of connection of tripping circuit of interval, generatrix differential protection with load test, to avoid operation with defects.