Research on Power Capacitor Insulation State Detection Based on Polarization Depolarization Current Method

ZHANG Chenmeng; XIE Shijun; TAN Siwen; ZHANG Yu

doi:10.13296/j.1001-1609.hva.2020.06.043

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Research on Power Capacitor Insulation State Detection Based on Polarization Depolarization Current Method

更新时间：2025-04-26

- Research on Power Capacitor Insulation State Detection Based on Polarization Depolarization Current Method
- High VoltageApparatus Vol. 56, Issue 6, Pages: 296-301(2020)
- 作者机构：
  
  1. 国网四川省电力公司电力科学研究院
  2. 国网四川省电力公司德阳供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.06.043
  CLC： TM855
- Published：2020
- 稿件说明：
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[1]张晨萌,谢施君,谭思文,张榆.基于极化去极化电流法的电力电容器绝缘状态检测方法研究[J].高压电器,2020,56(06):296-301.

ZHANG Chenmeng, XIE Shijun, TAN Siwen, et al. Research on Power Capacitor Insulation State Detection Based on Polarization Depolarization Current Method[J]. High voltageapparatus, 2020, 56(6): 296-301.
[1]张晨萌,谢施君,谭思文,张榆.基于极化去极化电流法的电力电容器绝缘状态检测方法研究[J].高压电器,2020,56(06):296-301. DOI： 10.13296/j.1001-1609.hva.2020.06.043.

ZHANG Chenmeng, XIE Shijun, TAN Siwen, et al. Research on Power Capacitor Insulation State Detection Based on Polarization Depolarization Current Method[J]. High voltageapparatus, 2020, 56(6): 296-301. DOI： 10.13296/j.1001-1609.hva.2020.06.043.

摘要

针对目前电力电容器缺乏有效绝缘状态检测方法的问题

文中提出基于极化去极化电流的电力电容器绝缘状态检测方法。首先论述了该方法的基本原理

并根据极化去极化电流推导出了两个电容器绝缘状态特征参量（直流电导率和0.1 Hz介损）;基于该原理

研制了一台极化去极化测试装置

利用该装置对不同老化阶段的电力电容器进行了绝缘状态测试;测试结果表明

随着电容器老化程度的加深

电容器极化、去极化电流都有不同程度的增大

直流电导率和0.1 Hz介损同时也有不同程度增长。通过文中研究说明利用极化去极化电流法能够有效检测电容器绝缘状态。

Abstract

Few effective insulation state detection methods for power capacitor can be used in field. In this paper

apower capacitor insulation state detection method based on polarization-depolarization current is proposed. Firstly

the basic principles of the method are discussed. Then

two characterized parameters are conducted based on polar-ization and depolarization currents

which are DC conductivity and 0.1 Hz dielectric loss. A test device based on thismethod is developed to evaluate the insulation state of power capacitor with different aging conditions

using this de-vice

the insulation state of power capacitors in different aging stages is tested. The test results showed that the polar-ization and depolarization currents increase in varying degrees with the deepening of aging. The DC conductance and0.1 Hz dielectric loss also increased in varying degrees. The study indicates that the polarization depolarization cur-rent method can effectively detect the insulation state of capacitor.

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