赵琦玮
ZHAO Qi-wei(Zhejiang Tianyin Business Consulting CO.

• 1:浙江天音管理咨询有限公司

摘要(Abstract)：

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 maloperation 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.

关键词(KeyWords)： 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

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 赵琦玮
ZHAO Qi-wei(Zhejiang Tianyin Business Consulting CO.

DOI: 10.19585/j.zjdl.2013.08.011

参考文献(References)：

• 王维俭.电气设备继电保护原理及应用[M].北京:中国电力出版社,1998.
• 张信,卢灿,直流系统接地的危害分析与处理[J].中州煤炭,2007,145(1):58-59.