Reliability Analysis of Vacuum Circuit Breaker Based on Weibull Distribution

MU Yan; WANG Yongxing; ZOU Jiyan; ZHAO Xujing; LIU Yang

doi:10.13296/j.1001-1609.hva.2020.01.005

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Reliability Analysis of Vacuum Circuit Breaker Based on Weibull Distribution

更新时间：2025-04-26

- Reliability Analysis of Vacuum Circuit Breaker Based on Weibull Distribution
- High VoltageApparatus Vol. 56, Issue 1, Pages: 30-35(2020)
- 作者机构：
  
  大连理工大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.01.005
  CLC： TM561.2
- Published：2020
- 稿件说明：
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[1]穆艳,王永兴,邹积岩,赵旭静,刘阳.基于威布尔分布的真空断路器可靠性分析[J].高压电器,2020,56(01):30-35.

MU Yan, WANG Yongxing, ZOU Jiyan, et al. Reliability Analysis of Vacuum Circuit Breaker Based on Weibull Distribution[J]. High voltageapparatus, 2020, 56(1): 30-35.
[1]穆艳,王永兴,邹积岩,赵旭静,刘阳.基于威布尔分布的真空断路器可靠性分析[J].高压电器,2020,56(01):30-35. DOI： 10.13296/j.1001-1609.hva.2020.01.005.

MU Yan, WANG Yongxing, ZOU Jiyan, et al. Reliability Analysis of Vacuum Circuit Breaker Based on Weibull Distribution[J]. High voltageapparatus, 2020, 56(1): 30-35. DOI： 10.13296/j.1001-1609.hva.2020.01.005.

摘要

针对真空断路器的可靠性研究问题

对12 kV永磁操动式真空断路器做了寿命试验。将采集到的试验数据用Weibull变换进行预处理

变换后的数据在普通坐标系内接近于直线

基于图形法可接受二参数Weibull分布作为拟合模型;采用最小二乘法计算确定了Weibull分布模型的具体参数;最后

在小样本试验数据的情况下

采用针对Weibull分布的Mann检验方法进行模型检验。结果表明

真空断路器的寿命数据符合二参数Weibull分布模型

并计算得到了模型的可靠性评价指标和真空断路器的平均寿命。

Abstract

The main purpose of this study is to analyze the reliability of vacuum circuit breaker. Life tests are conducted for 12 kV vacuum circuit breaker with permanent magnetic actuator. The collected data has been pretreated by Weibull transformation which is close to a straight line in a common coordinate system. Graphical method is adopted to accept two-parameter Weibull distribution as the fitting model. The approach of least squares estimation is used to estimate the model parameters. At last

in the case of small sample data

the fitting model is tested by the method of Mann. The result shows that the life data of medium voltage vacuum circuit breaker is consistent with two-parameter Weibull distribution model of which the reliability evaluation is calculated and the average service life of vacuum circuitbreakerisestimated.

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