Very Fast Transient Overvoltage and Its Effects on Main Transformer of 500 kV GIS Substation

ZHENG Bi-cheng; FU Yu

doi:10.13296/j.1001-1609.hva.2012.12.027

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Very Fast Transient Overvoltage and Its Effects on Main Transformer of 500 kV GIS Substation

更新时间：2025-04-26

- Very Fast Transient Overvoltage and Its Effects on Main Transformer of 500 kV GIS Substation
- High VoltageApparatus Vol. 48, Issue 12, Pages: 135-138+142(2012)
- 作者机构：
  
  福建福清核电有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.12.027
  CLC： TM864
- Published：2012
- 稿件说明：
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[1]郑必成,傅煜.500kV GIS开关站快速暂态过电压计算及对主变的影响[J].高压电器,2012,48(12):135-138+142.

ZHENG Bi-cheng, FU Yu. Very Fast Transient Overvoltage and Its Effects on Main Transformer of 500 kV GIS Substation[J]. High voltageapparatus, 2012, 48(12): 135-138+142.
[1]郑必成,傅煜.500kV GIS开关站快速暂态过电压计算及对主变的影响[J].高压电器,2012,48(12):135-138+142. DOI： 10.13296/j.1001-1609.hva.2012.12.027.

ZHENG Bi-cheng, FU Yu. Very Fast Transient Overvoltage and Its Effects on Main Transformer of 500 kV GIS Substation[J]. High voltageapparatus, 2012, 48(12): 135-138+142. DOI： 10.13296/j.1001-1609.hva.2012.12.027.

摘要

采用电磁暂态仿真软件EMTP程序仿真计算了福清核电500 kV GIS开关站隔离开关操作时产生的快速暂态过电压。重点计算分析了VFTO对主变绝缘的影响

结果表明

500 kV充油电缆对VFTO的传播具有抑制作用

降低了对主变的影响。并指出安装发电机出口断路器后

采用合理的操作方式

能有效地消除投切主变时产生的VFTO危害。

Abstract

A comparably complete simulation of VFTO

caused by disconnector operating in Fuqing nuclear power station 500 kV GIS substation

is presented by using Electro-magnetic Transient Program（EMTP）in this paper.Calculation and analysis

for the VFTO impact on the main transformer insulation

have been carried on.The results show that the long power cable connecting the GIS and the main transformer has caused the VFTO to have negligible effect on the main transformer.And pointed out that after installing generator circuit breaker（GCB）

the VFTO produced by main transformers operation can be eliminated effectively with reasonable operating way.

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