The Reliability Verification of the Insulation Pull Rod in Circuit Breaker

DANG Xiang-dong

doi:10.13296/j.1001-1609.hva.2010.08.004

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The Reliability Verification of the Insulation Pull Rod in Circuit Breaker

更新时间：2025-04-26

- The Reliability Verification of the Insulation Pull Rod in Circuit Breaker
- High VoltageApparatus Vol. 46, Issue 8, Pages: 63-65(2010)
- 作者机构：
  
  西电三菱电机开关设备有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.08.004
  CLC： TM561
- Published：2010
- 稿件说明：
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[1]党向东.断路器绝缘拉杆的可靠性验证[J].高压电器,2010,46(08):63-65.

DANG Xiang-dong. The Reliability Verification of the Insulation Pull Rod in Circuit Breaker[J]. High voltageapparatus, 2010, 46(8): 63-65.
[1]党向东.断路器绝缘拉杆的可靠性验证[J].高压电器,2010,46(08):63-65. DOI： 10.13296/j.1001-1609.hva.2010.08.004.

DANG Xiang-dong. The Reliability Verification of the Insulation Pull Rod in Circuit Breaker[J]. High voltageapparatus, 2010, 46(8): 63-65. DOI： 10.13296/j.1001-1609.hva.2010.08.004.

摘要

断路器在频繁操作的情况下

其绝缘拉杆有可能因为疲劳破坏而发生断裂。为了确保断路器在整个寿命期内绝缘拉杆不会因为疲劳而断裂或将其控制在某一范围内

可以在断路器绝缘拉杆设计完成后

通过测定绝缘拉杆的运行载荷

然后进行疲劳试验得到绝缘拉杆在预期寿命时的受力状况

最后再对试验数据进行统计分析

以得到绝缘拉杆在寿命期内的可靠度系数

并确认其是否满足设计要求

如果必要

也可以根据试验中的薄弱点进行针对性改良。

Abstract

When the circuit breaker was operated in very frequently

the insulation pull rod could be fracture for the reason of fatigue damage.In order to avoid the fatigue fracture of the rod or to be controlled at a certain range in the whole life of circuit breaker

the operation load test can be carried out after complete design of the circuit breaker.The force status of the rod in its expected life can be gotten through fatigue test.Finally

the reliability coefficient of insulation rod in its whole life can be obtained based on the statistics and analysis to the test data so as to confirm whether it could meet the design requirements or not.If necessary

some improvements to the weak points during the test can be performed.

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