煤矿供电防越级跳闸常用方案探究
荣翔
（同煤集团煤峪口矿，山西 大同 037041）
摘要： 越级跳闸是在为矿井供电提供保护的过程中常碰到的问题，对矿井供电及安全生产造成较大威胁。基于现场
实践经验及各类参考资料对常见越级跳闸的原因进行了分析，并详细阐述了电流纵联差动保护和通信级联闭锁两种防越
级跳闸方案，具有一定的理论价值和实践指导意义。
关键词： 供电系统；防越级跳闸；电流纵联差动保护；通信级联闭锁
中图分类号： TD611     文献标识码： A     文章编号： 2095-0802-(2020)05-0125-02
Research on Common Schemes for Preventing Override Trip of Coal Mine Power Supply
RONG Xiang
(Meiyukou Coal Mine, Datong Coal Mine Group, Datong 037041, Shanxi, China)
Abstract: Override trip is a common problem in the process of providing protection for mine power supply, which poses a great
threat to mine power supply and safety production. Based on the practical experience and various reference materials, this paper
analyzed the causes of common override trip, and expounded two anti-override trip schemes of current longitudinal differential
protection and communication cascade locking in detail, which has certain theoretical value and practical significance.

Key words: power supply system; anti-override trip; current longitudinal differential protection; communication cascade locking