Study on Electromagnetic Transient Characteristics During Switching Operation of 750 kV GIS Substation

JIANG Jinyang; ZHANG Xiangjie; YIN Xin; CHENG Xiao; CHEN Tao; YANG Fan

doi:10.13296/j.1001-1609.hva.2024.11.018

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Study on Electromagnetic Transient Characteristics During Switching Operation of 750 kV GIS Substation

Research & Analysis | 更新时间：2025-04-26

- Study on Electromagnetic Transient Characteristics During Switching Operation of 750 kV GIS Substation
- High Voltage Apparatus Vol. 60, Issue 11, Pages: 147-153(2024)
- 作者机构：
  
  1.国网重庆市电力公司电力科学研究院，　重庆　 400015
  2.重庆大学输配电装备及系统安全与新技术国家重点实验室，　重庆　 400044
- 作者简介：
- 基金信息：
  
  Science and Technology Project of SGCC(SGCQDK00NYJS000063)
- DOI：10.13296/j.1001-1609.hva.2024.11.018
  CLC：
- Received：12 July 2024，
  
  Revised：16 September 2024，
  
  Published：16 November 2024
- 稿件说明：
移动端阅览
JIANG Jinyang, ZHANG Xiangjie, YIN Xin, et al. Study on Electromagnetic Transient Characteristics During Switching Operation of 750 kV GIS Substation[J]. High voltage apparatus, 2024, 60(11): 147-153.
DOI：

JIANG Jinyang, ZHANG Xiangjie, YIN Xin, et al. Study on Electromagnetic Transient Characteristics During Switching Operation of 750 kV GIS Substation[J]. High voltage apparatus, 2024, 60(11): 147-153. DOI： 10.13296/j.1001-1609.hva.2024.11.018.

摘要

为明确气体绝缘开关设备（gas insulated switchgear，GIS）开关操作过程中的电磁暂态特性。在某750 kV气体绝缘变电站投运期间，设计了测量方案对隔离开关单次闭合、断路器单次闭合两类操作下的瞬态外壳电压（transient enclosure voltage，TEV）与暂态地电位升高（transient ground potential rise，TGPR）进行了测量，并对两类操作的测量结果从宏脉冲和微脉冲特性方面进行了对比分析。结果表明：TEV和TGPR的最大值分别为22.8 kV和19.6 kV，在许多测点处TGPR均高于TEV；相比于断路器合闸操作，隔离开关合闸操作产生的电磁振荡能量小，但宏脉冲持续时间长、击穿次数多。

Abstract

For clarifying the electromagnetic transient characteristics during the switching operation of gas insulated switchgear (GIS)

the measurement scheme is designed to measure the transient enclosure voltage (TEV) and the transient ground potential rise (TGPR) under such two types of operations as single close operation of disconnector and circuit breaker during the operation of one 750 kV GIS. And the measurement results of the two types of operations are compared and analyzed from the macro-pulse and micro-pulse characteristics aspects. The results show that the maximum values of TEV and TGPR are 22.8 kV and 19.6 kV

respectively

and TGPR is higher than TEV at many measuring points. Compared to the closed operation of circuit breaker

the electromagnetic oscillation energy generated by the closed operation of disconnector is small

but the duration of macro pulse is long and number of breakdown is more.

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Related Institution

School of Electrical Engineering,Xi’an Jiaotong University

西安交通大学电气工程学院陕西西安710049

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河北保定071003

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