Analysis of a Circuit Breaker Inadequate Closing Failure Due to Pin Defect

CHEN Yumin; ZHAO Xianping; PENG Jing; WANG Ke; MA Yi; TAN Xiangyu; ZHANG Gongyuan; SUN Aoyang; XU Hongwei; BAI Shuangquan; ZHU Yunwu

doi:10.13296/j.1001-1609.hva.2019.06.037

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Analysis of a Circuit Breaker Inadequate Closing Failure Due to Pin Defect

更新时间：2025-04-26

- Analysis of a Circuit Breaker Inadequate Closing Failure Due to Pin Defect
- High VoltageApparatus Vol. 55, Issue 6, Pages: 247-252(2019)
- 作者机构：
  
  1. 云南电网有限责任公司
  2. 云南电网有限责任公司电力科学研究院
  3. 云南电网有限责任公司楚雄供电局
  4. 云南电网有限责任公司昆明供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.06.037
  CLC： TM561
- Published：2019
- 稿件说明：
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[1]陈宇民,赵现平,彭晶,王科,马仪,谭向宇,张恭源,孙傲阳,许宏伟,白双全,朱云武.一起销轴缺陷引起断路器合闸不到位故障分析[J].高压电器,2019,55(06):247-252.

CHEN Yumin, ZHAO Xianping, PENG Jing, et al. Analysis of a Circuit Breaker Inadequate Closing Failure Due to Pin Defect[J]. High voltageapparatus, 2019, 55(6): 247-252.
[1]陈宇民,赵现平,彭晶,王科,马仪,谭向宇,张恭源,孙傲阳,许宏伟,白双全,朱云武.一起销轴缺陷引起断路器合闸不到位故障分析[J].高压电器,2019,55(06):247-252. DOI： 10.13296/j.1001-1609.hva.2019.06.037.

CHEN Yumin, ZHAO Xianping, PENG Jing, et al. Analysis of a Circuit Breaker Inadequate Closing Failure Due to Pin Defect[J]. High voltageapparatus, 2019, 55(6): 247-252. DOI： 10.13296/j.1001-1609.hva.2019.06.037.

摘要

介绍了一起断路器合闸不到位故障

通过现场检查、尺寸测量、故障模拟、金属检测

明确故障原因为提升杆与绝缘拉杆连接销轴端部的弹性锁片未安装或安装工艺不良

最终导致销轴产生移位并与下支撑座内壁产生摩擦

使得合闸阻力增大

导致断路器合闸不到位。并根据故障具体原因

提出了相应的排查措施。

Abstract

A circuit breaker poor closing failureis analyzed. Through field inspection

size measurement

fault simulation and metal detection

it is found that the absence or poor installation of the locking piece at the end of the joint pin of hoisting rod and insulation rod causespin displacement and friction with the inner wall of the lower support

which increases the closing resistance and hence results in the inadequate closing failure of the circuit breaker. Accordingly

corresponding countermeasures are put forward.

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