Analysis of On-site Partial-discharge Test on 750 kV Transformers

LI Yun-ge1; SHI Wei2; ZHANG Xiang-quan1; HAN Shao-zhou1; WANG Xuan3; WAN Rong-xing1; SONG Zhao-hui1

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Analysis of On-site Partial-discharge Test on 750 kV Transformers

更新时间：2025-04-26

- Analysis of On-site Partial-discharge Test on 750 kV Transformers
- High VoltageApparatus Issue 6, Pages: 434-437(2007)
- 作者机构：
  
  1. 1. 西北电网公司750kV兰州输变电运行工区 2. 西安交通大学电气工程学院
  2. 中国电力科学研究院高压研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM855
- Published：2007
- 稿件说明：
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[1]李云阁,施围,张祥全,韩绍周,王煊,万荣兴,宋朝晖.750 kV变压器现场局部放电试验有关问题分析[J].高压电器,2007(06):434-437.

LI Yun-ge1, SHI Wei2, ZHANG Xiang-quan1, et al. Analysis of On-site Partial-discharge Test on 750 kV Transformers[J]. High voltageapparatus, 2007, (6): 434-437.
[1]李云阁,施围,张祥全,韩绍周,王煊,万荣兴,宋朝晖.750 kV变压器现场局部放电试验有关问题分析[J].高压电器,2007(06):434-437. DOI：

LI Yun-ge1, SHI Wei2, ZHANG Xiang-quan1, et al. Analysis of On-site Partial-discharge Test on 750 kV Transformers[J]. High voltageapparatus, 2007, (6): 434-437. DOI：

摘要

笔者总结了示范工程中变压器现场局放交接试验的程序、标准、过程

分析了出现的问题

提出如下建议:①提高750 kV变压器的工频试验电压;②不宜反复进行局放试验;③现场试验局放超标时应务实处理;④重新定义局部放电起始电压和熄灭电压;⑤必要时采用可靠的在线监测设备。这些建议不限于750 kV变压器

亦可为1 000 kV变压器的现场交接试验参考。

Abstract

This paper analyzes the problems concerning procedure

standards

and process in the on-site acceptance partial-discharge（PD） test on the 750 kV transformers.Some suggestions are therefore offered as follows:①increase the power frequency withstand test voltage for 750 kV transformers;②avoid to perform PD test repeatedly;③ take practical measures if PD quantity exceeds the criterion stated in standard;④redefine the PD inception voltage and extinction voltage;⑤use reliable on-line monitoring apparatus when necessary.These suggestions can also serve as a reference for the same test on 1 000 kV transformer.

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