Analysis of an Excessive Resistance Phenomenon of 550 kV Circuit Breaker Closing Resistor

YANG Jinggang; JIA Yongyong; ZHAO Ke; GAO Shan

doi:10.13296/j.1001-1609.hva.2015.08.033

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Analysis of an Excessive Resistance Phenomenon of 550 kV Circuit Breaker Closing Resistor

更新时间：2025-04-26

- Analysis of an Excessive Resistance Phenomenon of 550 kV Circuit Breaker Closing Resistor
- High VoltageApparatus Vol. 51, Issue 8, Pages: 197-199+204(2015)
- 作者机构：
  
  江苏省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.08.033
  CLC： TM561
- Published：2015
- 稿件说明：
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[1]杨景刚,贾勇勇,赵科,高山.一起550kV断路器合闸电阻阻值超标现象分析[J].高压电器,2015,51(08):197-199+204.

YANG Jinggang, JIA Yongyong, ZHAO Ke, et al. Analysis of an Excessive Resistance Phenomenon of 550 kV Circuit Breaker Closing Resistor[J]. High voltageapparatus, 2015, 51(8): 197-199+204.
[1]杨景刚,贾勇勇,赵科,高山.一起550kV断路器合闸电阻阻值超标现象分析[J].高压电器,2015,51(08):197-199+204. DOI： 10.13296/j.1001-1609.hva.2015.08.033.

YANG Jinggang, JIA Yongyong, ZHAO Ke, et al. Analysis of an Excessive Resistance Phenomenon of 550 kV Circuit Breaker Closing Resistor[J]. High voltageapparatus, 2015, 51(8): 197-199+204. DOI： 10.13296/j.1001-1609.hva.2015.08.033.

摘要

在例行试验时发现550 k V断路器合闸电阻阻值超标

通过解体、试验

发现由于该型号合闸电阻具有负温度特性

其阻值会随环境温度的降低而变大。为确保在现场准确测量合闸电阻阻值

提出了该型号产品在生产时应充分考虑环境温度的影响

在测量时记录环境温度并进行阻值换算的改进措施。

Abstract

The resistance of a 550 k V circuit breaker closing resistor was found exceeding the standard value in a routine test. Then disassembly inspection and test were conducted. It was discovered that this type of closing resistor possesses a negative temperature characteristic

and its resistance increases when the ambient temperature decreases. In order to ensure accurate on-site measurement of the closing resistor

it is suggested that the influence of ambient temperature should be considered in production of this type of closing resistors

and ambient temperature ought to be recorded for resistance conversion in process of measurement.

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