Investigation on Measurement of Very Fast Transient Enclosure Voltage in Power Equipment

ZHAO Pengcheng; CAI Yuanji; LEI Linxu; HE Jiaxi; LIU Weidong

doi:10.13296/j.1001-1609.hva.2017.12.002

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Investigation on Measurement of Very Fast Transient Enclosure Voltage in Power Equipment

更新时间：2025-04-26

- Investigation on Measurement of Very Fast Transient Enclosure Voltage in Power Equipment
- High VoltageApparatus Vol. 53, Issue 12, Pages: 8-13(2017)
- 作者机构：
  
  1. 国网智能电网研究院
  2. 清华大学电机系电力系统及发电设备控制与仿真国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.12.002
  CLC： TM506
- Published：2017
- 稿件说明：
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[1]赵鹏程,蔡元纪,雷林绪,何嘉希,刘卫东.电力设备特快速TEV测量方法研究[J].高压电器,2017,53(12):8-13.

ZHAO Pengcheng, CAI Yuanji, LEI Linxu, et al. Investigation on Measurement of Very Fast Transient Enclosure Voltage in Power Equipment[J]. High voltageapparatus, 2017, 53(12): 8-13.
[1]赵鹏程,蔡元纪,雷林绪,何嘉希,刘卫东.电力设备特快速TEV测量方法研究[J].高压电器,2017,53(12):8-13. DOI： 10.13296/j.1001-1609.hva.2017.12.002.

ZHAO Pengcheng, CAI Yuanji, LEI Linxu, et al. Investigation on Measurement of Very Fast Transient Enclosure Voltage in Power Equipment[J]. High voltageapparatus, 2017, 53(12): 8-13. DOI： 10.13296/j.1001-1609.hva.2017.12.002.

摘要

GIS开关操作会产生特快速TEV

导致变电站二次系统的电磁兼容问题。为了观测和了解该特快速TEV的特性

研究了特快速TEV测量方法

建立了试验电路和测量系统

观测和分析了测量中电压传感器连线方式对测量准确度的影响

给出了特快速TEV测量的指导原则和推荐电路。TEV测量应避免在GIS壳体上直接连接大尺寸的导体

以避免对原有TEV的改变;电压连接导线应尽量传送参考零电位电压

避免传送特快速TEV

以避免电压传送引起TEV波形的畸变。

Abstract

GIS may produce very fast transient enclosure voltage（TEV） in switching operation to cause electromagnetic compatibility problem in substation’s secondary system.In this study

a test circuit and a measurement system for the very fast TEV were developed

and the influence of the wiring connection of the TEV point

the reference zero potential point and the measurement device on the TEV measurement accuracy was analyzed.A guiding principle and a recommended circuit for the TEV measurement were proposed.It is suggested that: connecting a large size conductor on GIS enclosure should be avoided in TEV measurement to avoid making change of the original TEV;voltage connecting wire should transmit reference zero potential instead of TEV to the measurement device to avoid causing distortion of TEV waveform.

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Related Institution

China Railway First Survey and Design Institute Group Co., Ltd.

State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University

Xi’an Power Supply Bureau

西安供电局陕西西安710032

北京工业大学

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