Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis

TAN Xiangyu; WEN Tao; LIU Xuandong; PANG Lei

doi:10.13296/j.1001-1609.hva.2017.12.009

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Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis

更新时间：2025-04-26

- Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis
- High VoltageApparatus Vol. 53, Issue 12, Pages: 54-60(2017)
- 作者机构：
  
  1. 云南电网有限责任公司电力科学研究院
  2. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.12.009
  CLC： TM595
- Published：2017
- 稿件说明：
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[1]谭向宇,文韬,刘轩东,庞磊.GIS对接冲击试验方法及冲击电压波形分析[J].高压电器,2017,53(12):54-60.

TAN Xiangyu, WEN Tao, LIU Xuandong, et al. Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis[J]. High voltageapparatus, 2017, 53(12): 54-60.
[1]谭向宇,文韬,刘轩东,庞磊.GIS对接冲击试验方法及冲击电压波形分析[J].高压电器,2017,53(12):54-60. DOI： 10.13296/j.1001-1609.hva.2017.12.009.

TAN Xiangyu, WEN Tao, LIU Xuandong, et al. Method of Impulse Test for GIS with Docking Way and Impulse Waveform Analysis[J]. High voltageapparatus, 2017, 53(12): 54-60. DOI： 10.13296/j.1001-1609.hva.2017.12.009.

摘要

大容量GIS冲击电压试验电压波形受回路电感影响较大

影响输出波形波前时间

降低冲击试验绝缘缺陷检测的有效性。笔者从冲击试验时电压引入方式入手

基于研制的2 000 kV紧凑型冲击电压发生装置

提出了GIS对接冲击试验方法

开展了145 kV和252 kV GIS对接冲击试验。该方法利用变阻抗转接段和液压升降装置

可将冲击电压发生器电压输出端直接与GIS预留对接口相连

回路紧凑

减小了因高压导线引入的电感

提高了冲击试验波形质量。最后通过仿真软件

分析了当负载电容量较大时

回路电感对冲击电压波形参数的影响规律

缩小回路电感是解决大容量设备标准LI试验的关键。

Abstract

The impulse test waveform for GIS with large capacitance is greatly influenced by the circuit inductance

it may influence the impulse waveform front time and decrease the effectiveness of insulation defects detecting.Based on the developed 2 000 kV compact impulse voltage generator

the impulse test method of GIS with docking way is proposed

and the impulse tests for 145 kV and 252 kV GIS are carried out.Using the variable impedance switching section and the hydraulic lifting device

it can connect the voltage output terminal of the impulse voltage generator directly to the reserved docking port of GIS

which can make the circuit compact

reduce the inductance introduced by the high voltage wire

and improve the impulse test waveform quality.Finally

the influence of the circuit inductance on the impulse waveform parameters is analyzed by the simulation.Reducing circuit inductance is the key to solve the problem of standard LI test for equipment with large capacitance.

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