Typical Faults Analysis for 550 kV Circuit Breaker

XU Yang; CHEN Xiao-jun; LI Feng-feng; HAO Yue-dong; OUYANG Zhen; SU Feng; LIU Si-jia; LIU Jiao

doi:10.13296/j.1001-1609.hva.2013.12.017

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Typical Faults Analysis for 550 kV Circuit Breaker

更新时间：2025-04-26

- Typical Faults Analysis for 550 kV Circuit Breaker
- High VoltageApparatus Vol. 49, Issue 12, Pages: 80-87(2013)
- 作者机构：
  
  1. 国家电网公司运行分公司上海管理处
  2. 上海市电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.12.017
  CLC： TM561
- Published：2013
- 稿件说明：
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[1]许杨,陈小军,李锋锋,郝跃东,欧阳震,苏丰,刘斯佳,刘娇.550kV断路器典型故障分析[J].高压电器,2013,49(12):80-87.

XU Yang, CHEN Xiao-jun, LI Feng-feng, et al. Typical Faults Analysis for 550 kV Circuit Breaker[J]. High voltageapparatus, 2013, 49(12): 80-87.
[1]许杨,陈小军,李锋锋,郝跃东,欧阳震,苏丰,刘斯佳,刘娇.550kV断路器典型故障分析[J].高压电器,2013,49(12):80-87. DOI： 10.13296/j.1001-1609.hva.2013.12.017.

XU Yang, CHEN Xiao-jun, LI Feng-feng, et al. Typical Faults Analysis for 550 kV Circuit Breaker[J]. High voltageapparatus, 2013, 49(12): 80-87. DOI： 10.13296/j.1001-1609.hva.2013.12.017.

摘要

分别阐述了SF6断路器在分闸过程中重燃和分闸时灭弧室套管爆炸的两起故障情况

结合故障录波、解体检查、材料检测等情况

得出两起故障原因分别是喷口材料中填料比例不当和绝缘拉杆传动拐臂断裂

分析了喷口材料对断路器开断能力的影响

指出加强断路器核心部件的质量管控与监督仍是电力工业亟需解决的问题。针对在运设备

综合运用各种带电检测技术、重视故障录波信息的分析与家族性缺陷的诊断是及时发现此类潜伏性故障的重要手段。

Abstract

Two faults of SF6circuit breaker porcelain bushing explosion and arc reignition in interrupting course are analyzed. According to the fault records

disassembly checks and material inspections

two faults are respectively due to improper proportion of stuffing in nozzle and fracture of turn-arm of insulated pull rod. The effect of nozzle material on interrupting capability of the SF6circuit breaker is analyzed.Conclusions are drawn that: ①Power industry should pay more attention to quality control and supervision of circuit breaker core components; ② Live-line detection technology

fault record analysis and familial defect diagnosis are important methods for diagnosing these kinds of latent faults in operating equipment.

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