Analysis of An Accident Caused by Heavy Gas Misoperation of Oil-flow Relay

QIU Wei

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Analysis of An Accident Caused by Heavy Gas Misoperation of Oil-flow Relay

更新时间：2026-02-13

- Analysis of An Accident Caused by Heavy Gas Misoperation of Oil-flow Relay
- Vol. 45, Issue 4, Pages: 87-90(2022)
- 作者机构：
  
  国网四川省电力公司成都供电公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM7710.16527/j.issn.1003-6954.20220417
- Published：2022
- 稿件说明：
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QIU Wei. Analysis of An Accident Caused by Heavy Gas Misoperation of Oil-flow Relay[J]. 2022, 45(4): 87-90.
DOI：

QIU Wei. Analysis of An Accident Caused by Heavy Gas Misoperation of Oil-flow Relay[J]. 2022, 45(4): 87-90. DOI：

摘要

文中结合一起有载分接开关油流继电器重瓦斯保护误动导致220 kV变压器跳闸事故展开分析。通过对油流继电器干簧管的绝缘电阻测试、试验，结合现场检查、试验情况和故障录波对事故动作逻辑进行反复推演分析，找到了油流继电器干簧管的设计缺陷及事故诱因，并提出合理的整改建议。

Abstract

A 220 kV transformer tripping accident caused by heavy gas misoperation of oil-flow relay in on-load tap-changer (OLTC) is analyzed. Through the test and examination of the insulation resistance of reed switch in oil-flow relay and combined with the fault recording wave

the accident action logic is repeatedly deduced and analyzed. The root causes of the accident and a design defect of reed switch in oil-flow relay are found out

and some reasonable suggestions are put forward.

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