New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch

WANG Zili; LI Liuling

doi:10.13296/j.1001-1609.hva.2017.05.032

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New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch

更新时间：2025-04-26

- New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch
- High VoltageApparatus Vol. 53, Issue 5, Pages: 200-203(2017)
- 作者机构：
  
  1. 国网河南省电力公司
  2. 2. 陕西杉瑞电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.05.032
  CLC： TM591
- Published：2017
- 稿件说明：
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[1]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(05):200-203.

WANG Zili, LI Liuling. New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch[J]. High voltageapparatus, 2017, 53(5): 200-203.
[1]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(05):200-203. DOI： 10.13296/j.1001-1609.hva.2017.05.032.

WANG Zili, LI Liuling. New Approach to Protect Against Internal Arcing Fault of Distribution Switchgear Panels by Using Ultra-fast Earth Switch[J]. High voltageapparatus, 2017, 53(5): 200-203. DOI： 10.13296/j.1001-1609.hva.2017.05.032.

摘要

为了解决目前因内部电弧故障影响整套开关柜退出运行的状况

提高供电可靠性

文中设计了一种开关柜内部电弧故障的保护方法。它是利用超快速接地开关快速接地来转移开关柜内部故障电弧电流

同时利用超快速接地开关在300 ms内完成合闸和分闸操作

熄灭电弧并减轻因电弧对柜内绝缘和元件的损坏

这样可以让开关柜母线上的断路器完成重合闸操作

恢复供电。这种设计可以在不改变现有断路器标准操作循环的基础上

极大地提高供电可靠性。

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.

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