Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay

ZHONG Tian-xiang; JIN Shu-jun

doi:10.13296/j.1001-1609.hva.2011.05.015

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Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay

更新时间：2025-05-17

- Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay
- High VoltageApparatus Vol. 47, Issue 5, Pages: 79-82(2011)
- 作者机构：
  
  浙江华能玉环电厂
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.05.015
  CLC： TM407
- Published：2011
- 稿件说明：
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[1]钟天翔,金树军.500kV变压器瓦斯继电器误动作原因分析[J].高压电器,2011,47(05):79-82.

ZHONG Tian-xiang, JIN Shu-jun. Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay[J]. High voltageapparatus, 2011, 47(5): 79-82.
[1]钟天翔,金树军.500kV变压器瓦斯继电器误动作原因分析[J].高压电器,2011,47(05):79-82. DOI： 10.13296/j.1001-1609.hva.2011.05.015.

ZHONG Tian-xiang, JIN Shu-jun. Analysis on Misoperation Reasons of 500 kV Transformers Gas Relay[J]. High voltageapparatus, 2011, 47(5): 79-82. DOI： 10.13296/j.1001-1609.hva.2011.05.015.

摘要

气体继电器作为变压器的主保护对变压器的安全运行起到关键的作用

文中介绍一起500 kV变压器重瓦斯保护动作的经过

对500 kV瓦斯继电器的结构和动作原理进行了说明

最终分析出该次重瓦斯保护动作是由于励磁涌流过大、变压器内部存在气体以及重瓦斯保护整定值偏低等综合原因造成的误动作

同时针对此次的误动作在变压器的使用、维护、试验和检修等方面提出了相应建议。

Abstract

Gas relay is the main protection of the main transformer

and this protection is the key of the transformer’s safety.This article introduced the operation process of the heavy gas protection of the 500 kV transformer

described the configuration and the operative elements of the gas relay

finally presented the reasons: the closing excitation inrush current is large

some gas in the transformer

behavioral value of the gas relay is low

at the same time

put forward the corresponding proposal about transformer’s use

maintenance

test and overhaul etc..

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