Study on Applied AC Voltage Withstand Test with PD Measurement in Field for UHV Converter Transformer

WU Chuanqi; CHEN Jun; REN Jieshuai; LIU Rui; WANG Tao; XIE Qijia; WANG Yongqin; LU Licheng; WU Zhirong; ZHANG Jie

doi:10.13296/j.1001-1609.hva.2019.08.016

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Study on Applied AC Voltage Withstand Test with PD Measurement in Field for UHV Converter Transformer

更新时间：2025-04-26

- Study on Applied AC Voltage Withstand Test with PD Measurement in Field for UHV Converter Transformer
- High VoltageApparatus Vol. 55, Issue 8, Pages: 116-122(2019)
- 作者机构：
  
  1. 国网湖北省电力有限公司电力科学研究院
  2. 国家电网公司
  3. 国网电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.08.016
  CLC： TM721.1
- Published：2019
- 稿件说明：
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[1]吴传奇,陈隽,任劼帅,刘睿,汪涛,谢齐家,王永勤,卢理成,伍志荣,张杰.特高压换流变现场阀侧交流外施耐压及局放试验研究[J].高压电器,2019,55(08):116-122.

WU Chuanqi, CHEN Jun, REN Jieshuai, et al. Study on Applied AC Voltage Withstand Test with PD Measurement in Field for UHV Converter Transformer[J]. High voltageapparatus, 2019, 55(8): 116-122.
[1]吴传奇,陈隽,任劼帅,刘睿,汪涛,谢齐家,王永勤,卢理成,伍志荣,张杰.特高压换流变现场阀侧交流外施耐压及局放试验研究[J].高压电器,2019,55(08):116-122. DOI： 10.13296/j.1001-1609.hva.2019.08.016.

WU Chuanqi, CHEN Jun, REN Jieshuai, et al. Study on Applied AC Voltage Withstand Test with PD Measurement in Field for UHV Converter Transformer[J]. High voltageapparatus, 2019, 55(8): 116-122. DOI： 10.13296/j.1001-1609.hva.2019.08.016.

摘要

特高压输电技术的广泛应用已经为中国能源调配、大气污染治理、大规模新能源并网接入发挥了巨大作用

±1 100 kV昌吉—古泉特高压直流输电工程是目前世界上电压等级最高、输送容量最大、输送距离最远的输电工程。文中以该工程送端昌吉换流站HD换流变现场阀侧交流外施耐压及局放试验为研究对象

通过分析试验方法、试验布置、试验设备、试验参数、电场环境校核和试验结果

验证了采用免吊装的整装式试验平台在阀厅内开展该试验的可行性

提出了阀厅内开展该试验的电场校核空气最小净距应不小于7.5 m

该次试验的最终测得局放量小于150 pC

这也是全世界首次在阀厅内开展特高压换流变的该项试验

试验的方法和结果为阀厅内开展相关试验提供了解决方案。

Abstract

The ±1 100 kV Changji-Guquan UHV DC transmission project is the very transmission project in the world having the highest voltage level

the largest transmission capacity

and the longest transmission distance.In this study

the applied AC voltage withstand test with partial discharge（PD）measurement in field for Changji converter station’s UHV converter transformer was studied.The test method

test arrangement

test equipment

test parameters

environment field check

and test result were analyzed to verify the feasibility of using the hoisting-free and equipped insulation test platform to conduct the test in the valve hall.It was proposed that the minimum clearance of the electric field calibration air in the valve hall should be no less than 7.5 m.The finally measured PD quantity in this test was less than 150 pC.The test method and test result in this study may be provided as reference for the relevant tests performing in valve hall.

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