Analysis on Thyristor Damaged in Single Valve Steep-front Impulse

BAN Jian; LI Xia; CHEN Gan; XU Hai-bo

doi:10.13296/j.1001-1609.hva.2012.12.022

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Analysis on Thyristor Damaged in Single Valve Steep-front Impulse

更新时间：2025-04-26

- Analysis on Thyristor Damaged in Single Valve Steep-front Impulse
- High VoltageApparatus Vol. 48, Issue 12, Pages: 109-112(2012)
- 作者机构：
  
  西安西电电力系统有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.12.022
  CLC： TM855
- Published：2012
- 稿件说明：
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[1]班建,李侠,陈干,徐海博.单阀陡波前试验晶闸管损坏分析[J].高压电器,2012,48(12):109-112.

BAN Jian, LI Xia, CHEN Gan, et al. Analysis on Thyristor Damaged in Single Valve Steep-front Impulse[J]. High voltageapparatus, 2012, 48(12): 109-112.
[1]班建,李侠,陈干,徐海博.单阀陡波前试验晶闸管损坏分析[J].高压电器,2012,48(12):109-112. DOI： 10.13296/j.1001-1609.hva.2012.12.022.

BAN Jian, LI Xia, CHEN Gan, et al. Analysis on Thyristor Damaged in Single Valve Steep-front Impulse[J]. High voltageapparatus, 2012, 48(12): 109-112. DOI： 10.13296/j.1001-1609.hva.2012.12.022.

摘要

在青海至西藏直流输电工程换流阀绝缘型式试验中

由于计入附加大气修正系数Katm单阀陡波前冲击试验电压达到884 kV

试验造成9只晶闸管损坏。笔者着重分析了换流阀绝缘配合设计和绝缘型式试验的技术指标

在单阀陡前波冲击试验中可不必计入大气修正系数Katm

试验的结果可以保证换流阀在高海拔地区运行的安全性。

Abstract

Due to the atmospheric correction coefficient Katm

steep-front impulse voltage on single valve is 884 kV in Q-X HVDC project valve insulation type test

the test cause 9 thyristors damaged.This article focuses on the technical specifications of the valve insulation coordination design and insulation type test technical data.It’s not necessary to calculate with Katm in single valve steep-front impulse test

and the results can assure the valve running safely at high altitudes.

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Related Institution

Xi’an Jiaotong University

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Xi’an XD Power Rectifier Co.,Ltd.,Xi’an 710077,Chian

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