高压电器2017，Vol.53Issue(5)：200-203,4.DOI:10.13296/j.1001-1609.hva.2017.05.032
一种用超快速接地开关对开关柜内部电弧故障保护的方法
New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch
王自立 1李六零2
作者信息
- 1. 国网河南省电力公司,郑州450018
- 2. 陕西杉瑞电气有限公司,西安710075
- 折叠
摘要
Abstract
To solve the common problem of which the internal fault arc of distribution switchgear panels(DSP)result in DSP out of service and to improve the power supply reliability,a new protection system is designed and introduced in this paper in which the ultra-fast earth switch(UFES)is used to transfer the fault arcing current into ground through UFES close and open itself within 300 ms,to extinguish fault arc in DSP and to relief the internal insulation and elements damage of DSP,thus achieving the re-closing function of main-bus circuit breaker.This design can improve the power supply reliability dramatically without change existing standard operation cycle of circuit breaker.关键词
超快速接地开关/弧光检测/自动重合闸/保护系统Key words
ultra-fast earth switch/arc-detection/auto-reclosing/protection system引用本文复制引用
王自立,李六零..一种用超快速接地开关对开关柜内部电弧故障保护的方法[J].高压电器,2017,53(5):200-203,4.
