Study on Low-temperature Features and Corresponding Countermeasure for LW15-252 Circuit Breaker

JIA Ming-yue; GUO Fu; LIU Shu-xin; JIANG Xiao-gang

doi:10.13296/j.1001-1609.hva.2011.11.014

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Study on Low-temperature Features and Corresponding Countermeasure for LW15-252 Circuit Breaker

更新时间：2025-04-26

- Study on Low-temperature Features and Corresponding Countermeasure for LW15-252 Circuit Breaker
- High VoltageApparatus Vol. 47, Issue 11, Pages: 106-109(2011)
- 作者机构：
  
  鞍山供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.11.014
  CLC： TM561
- Published：2011
- 稿件说明：
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[1]贾明月,郭夫,刘树新,蒋晓刚.LW15-252型断路器低温运行特点及应对措施的研究[J].高压电器,2011,47(11):106-109.

JIA Ming-yue, GUO Fu, LIU Shu-xin, et al. Study on Low-temperature Features and Corresponding Countermeasure for LW15-252 Circuit Breaker[J]. High voltageapparatus, 2011, 47(11): 106-109.
[1]贾明月,郭夫,刘树新,蒋晓刚.LW15-252型断路器低温运行特点及应对措施的研究[J].高压电器,2011,47(11):106-109. DOI： 10.13296/j.1001-1609.hva.2011.11.014.

JIA Ming-yue, GUO Fu, LIU Shu-xin, et al. Study on Low-temperature Features and Corresponding Countermeasure for LW15-252 Circuit Breaker[J]. High voltageapparatus, 2011, 47(11): 106-109. DOI： 10.13296/j.1001-1609.hva.2011.11.014.

摘要

笔者结合LW15-252型断路器运行中出现的问题

对气动操作机构低温运行特点进行了总结

在此基础上对机构箱的加热保温措施进行了研究。文中分析了采用传统保温措施后SF6气体密度检测失真的原因

设计了一套由保温被、半导体加热器等组成的机构箱加热、保温系统

确保了操作机构冬季运行平稳

也为采用气动操作机构的其他断路器的运行维护提供了借鉴。

Abstract

According to the problem occurred in the operation of LW15-252 circuit breaker

this paper summarized the low-temperature features of the pneumatic operating mechanism

and studies its heat preservation measures in winter.This paper analyzed the reasons of inaccurate measurement of SF6 density when the mechanism case was in traditional heat preservation measures

and then presented a warming and heat-preserving system composed of insulating cover and semiconductor heater for the mechanism case.The application of this system verifies that this system can ensure smooth operation of the pneumatic operating mechanism of this type of circuit breakers in winter.In addition

this study may provide a reference for the operation and maintenance of other circuit breakers with pneumatic operating mechanism in winter.

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