Study on Surface Discharge Characteristics of Insulator in SF<sub>6</sub> Under Oscillating Impulse Voltage

ZHAO Xuefeng; PU Lu; JU Zeli; LI Jin; ZHAO Wenyan

doi:10.13296/j.1001-1609.hva.2015.10.019

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Study on Surface Discharge Characteristics of Insulator in SF₆ Under Oscillating Impulse Voltage

更新时间：2025-04-26

- Study on Surface Discharge Characteristics of Insulator in SF₆ Under Oscillating Impulse Voltage
- High VoltageApparatus Vol. 51, Issue 10, Pages: 122-127(2015)
- 作者机构：
  
  1. 国网陕西省电力公司电力科学研究院
  2. 国网冀北唐山供电公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.10.019
  CLC： TM855
- Published：2015
- 稿件说明：
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[1]赵学风,蒲路,琚泽立,李晋,赵文炎.振荡型冲击电压下SF_6气体中绝缘子沿面放电特性研究[J].高压电器,2015,51(10):122-127.

ZHAO Xuefeng, PU Lu, JU Zeli, et al. Study on Surface Discharge Characteristics of Insulator in SF₆ Under Oscillating Impulse Voltage[J]. High voltageapparatus, 2015, 51(10): 122-127.
[1]赵学风,蒲路,琚泽立,李晋,赵文炎.振荡型冲击电压下SF_6气体中绝缘子沿面放电特性研究[J].高压电器,2015,51(10):122-127. DOI： 10.13296/j.1001-1609.hva.2015.10.019.

ZHAO Xuefeng, PU Lu, JU Zeli, et al. Study on Surface Discharge Characteristics of Insulator in SF₆ Under Oscillating Impulse Voltage[J]. High voltageapparatus, 2015, 51(10): 122-127. DOI： 10.13296/j.1001-1609.hva.2015.10.019.

摘要

振荡型冲击试验是近几年在高电压等级GIS现场耐压中广泛开展的试验项目。为了将这项单纯的"检验性"试验发展成为一项具备"诊断性"的综合试验

笔者首先建立了产生波形符合IEC 60060-3—2006标准要求的振荡冲击发生器及相应的局部放电检测系统

在此基础上

研究了GIS中常见的绝缘子沿面闪络缺陷在振荡冲击电压下的放电特性;总结了典型放电脉冲特征;分析了最大放电幅值、放电次数随外施电压的变化规律;讨论了放电发展过程。结果表明

振荡型冲击由于振荡特性有利于增加沿面放电次数

故而能更好地暴露出GIS内部隐患;最大放电幅值和放电次数均随外加电压的增加而显著增大。研究结果为现场开展振荡冲击下局部放电检测提供了试验基础。

Abstract

The on-site oscillating impulse withstand voltage（OIV）test for high-voltage level of GIS has been widely carried out in recent years. In order to make this OIV test develop into a comprehensive diagnostic test

an oscillatory impulse voltage generator was designed and built to produce the voltage waveforms in accordance with the IEC 60060-3—2006 standard

and the partial discharge（PD）measurement system was also developed. Then PD characteristics of insulator in SF6 under OIV were studied in this paper. The features of typical discharge pulses were summarized; the variation of discharge amplitude maximum and discharge number with the increase of applied voltage was also analyzed. Moreover

the process of discharge was discussed. The results showed that the number of surface discharge pulses increased dramatically due to oscillatory property

and so that it is better to detect hidden flaws in GIS; the maximum discharge amplitude and discharge number also increased significantly with the increase of applied voltage. This study provided a basis for PD detection in OIV test.

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Study on Surface Discharge Characteristics of Insulator in SF6 Under Oscillating Impulse Voltage

DOI：10.13296/j.1001-1609.hva.2015.10.019

摘要

Abstract

关键词

Keywords

references

Study on Surface Discharge Characteristics of Insulator in SF₆ Under Oscillating Impulse Voltage