Analysis of Decomposition Products Due to Floating Potential Discharge in SF<sub>6</sub> Circuit Breaker

YANG Ren1; WU Shui-feng2; XUE Jun3; JIAN Yong-feng1; CHEN Jiang-han4; SUN Zhi-heng2; XIU Shi-xin2

doi:10.13296/j.1001-1609.hva.2013.06.009

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Analysis of Decomposition Products Due to Floating Potential Discharge in SF₆ Circuit Breaker

更新时间：2025-04-26

- Analysis of Decomposition Products Due to Floating Potential Discharge in SF₆ Circuit Breaker
- High VoltageApparatus Vol. 49, Issue 6, Pages: 17-21(2013)
- 作者机构：
  
  1. 陕西电力科学研究院
  2. 西安交通大学
  3. 陕西省电力公司
  4. 中国广州分析测试中心
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.06.009
  CLC： TM561.3
- Published：2013
- 稿件说明：
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[1]杨韧,吴水锋,薛军,菅永峰,陈江韩,孙志恒,修士新.SF_6断路器内部悬浮电位放电产生的分解产物分析[J].高压电器,2013,49(06):17-21.

YANG Ren1, WU Shui-feng2, XUE Jun3, et al. Analysis of Decomposition Products Due to Floating Potential Discharge in SF₆ Circuit Breaker[J]. High voltageapparatus, 2013, 49(6): 17-21.
[1]杨韧,吴水锋,薛军,菅永峰,陈江韩,孙志恒,修士新.SF_6断路器内部悬浮电位放电产生的分解产物分析[J].高压电器,2013,49(06):17-21. DOI： 10.13296/j.1001-1609.hva.2013.06.009.

YANG Ren1, WU Shui-feng2, XUE Jun3, et al. Analysis of Decomposition Products Due to Floating Potential Discharge in SF₆ Circuit Breaker[J]. High voltageapparatus, 2013, 49(6): 17-21. DOI： 10.13296/j.1001-1609.hva.2013.06.009.

摘要

在某断路器SF6分解产物检测时发现SO2气体体积分数异常

判断该断路器存在潜伏性缺陷。通过理论分析并对断路器进行解体检查

最终判断该断路器的潜伏性缺陷为悬浮电位放电故障。笔者分析了悬浮电位的形成过程及其对断路器的影响

分析了SF6气体在悬浮电位放电下的气体以及固体分解组分的生成机理。

Abstract

Abnormal content of SO2 gas was detected in a 126 kV SF6 circuit breaker

which inferred a latent fault in this circuit breaker.Theoretical analysis and disassembling inspection of the circuit breaker indicated that this latent fault was due to floating potential discharge in this circuit breaker.This paper analyses the forming process of floating potential and its influence on the operating characteristics of the circuit breaker.And the generation mechanisms of gaseous and solid decomposition products of SF6 gas under floating potential discharge are discussed.

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Analysis of Decomposition Products Due to Floating Potential Discharge in SF6 Circuit Breaker

DOI：10.13296/j.1001-1609.hva.2013.06.009

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Analysis of Decomposition Products Due to Floating Potential Discharge in SF₆ Circuit Breaker