摘要
通过直流电源接地引起机组跳闸的案例分析,讨论了直流电源一点接地后,绝缘监测装置继电器的误动原理,以及热工和电气方面引起直流系统一点接地的可能原因,提出了直流系统一点接地故障时减少其危害的措施。
Through case study on units trip-out caused by DC power grounding, the paper discusses the real- operation principle of relay of insulation monitor after the one point earth of DC power and possible reasons of one point earth in terms of thermal engineering and electrical engineering. The paper expounds the measures for reducing other hazards during one point earth.
出处
《浙江电力》
2013年第8期48-51,共4页
Zhejiang Electric Power
关键词
直流系统
继电器
一点接地
故障分析
预防措施
DC system
relay
one point earth
fault analysis
precautionary measure
