Representing Running State of Polluted Insulator by Amplitude of Leakage Current and Waveform Distortion Rate

XU Kang; CHEN Yu

doi:10.13296/j.1001-1609.hva.2016.07.023

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Representing Running State of Polluted Insulator by Amplitude of Leakage Current and Waveform Distortion Rate

更新时间：2025-04-26

- Representing Running State of Polluted Insulator by Amplitude of Leakage Current and Waveform Distortion Rate
- High VoltageApparatus Vol. 52, Issue 7, Pages: 150-154+160(2016)
- 作者机构：
  
  国网孝感供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.07.023
  CLC： TM216
- Published：2016
- 稿件说明：
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[1]徐康,陈瑜.泄漏电流幅值与波形畸变率联合表征染污绝缘子运行状态的研究[J].高压电器,2016,52(07):150-154+160.

XU Kang, CHEN Yu. Representing Running State of Polluted Insulator by Amplitude of Leakage Current and Waveform Distortion Rate[J]. High voltageapparatus, 2016, 52(7): 150-154+160.
[1]徐康,陈瑜.泄漏电流幅值与波形畸变率联合表征染污绝缘子运行状态的研究[J].高压电器,2016,52(07):150-154+160. DOI： 10.13296/j.1001-1609.hva.2016.07.023.

XU Kang, CHEN Yu. Representing Running State of Polluted Insulator by Amplitude of Leakage Current and Waveform Distortion Rate[J]. High voltageapparatus, 2016, 52(7): 150-154+160. DOI： 10.13296/j.1001-1609.hva.2016.07.023.

摘要

为有效预警污闪事故

文中以单片XP-70型瓷绝缘子为研究对象

在人工雾室里进行了大量的交流人工污秽试验

并且基于污闪发展全过程3区段的思想

利用时频域结合的分析方法

揭示出污闪过程中

3区段泄漏电流波形的典型特性

以及泄漏电流的幅值和波形畸变率的变化特点。试验研究结果表明:泄漏电流幅值和波形畸变率是能够有效地描述泄漏电流波形

他们的变化规律与绝缘子表面的污秽度

污秽分布和气压等参量无关。研究结果对于建立基于利用泄漏电流表征线路绝缘子的运行状态系统具有一定的参考价值。

Abstract

To develop an early warning method for contamination flashover

a large number of artificial contamination AC tests were conducted on the XP-70 insulator in an artificial fog chamber. Considering the three stages of contamination flashover process

the typical waveform features of leakage current on the insulator surface as well as the variations of the leakage current amplitude and waveform distortion rate in these three stages were revealed in both time domain and frequency domain. The results show the amplitude of leakage current and the rate of waveform distortion can effectively describe the characteristics of leakage current waveform

and their variations are independent on such parameters as the equivalent salt deposit density and contamination distribution on the insulator

and air pressure. This study may provide a reference for developing a leakage current-based insulator monitoring system.

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Related Institution

School of Electrical Engineering and New Energy, Three Gorges University

Graduate School at Shenzhen, Tsinghua University

Department of Electrical Engineering, Tsinghua University

北京100084

清华大学深圳研究生院能源与电工新技术实验室

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