On-site Partial Discharge Test Method of 750 kV Shunt Reactor in High Altitude Area

HE Jiaxin; KANG Jun; LI Jiangtao; WANG Shengjie; YU Xinlong; WANG Lili

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On-site Partial Discharge Test Method of 750 kV Shunt Reactor in High Altitude Area

更新时间：2025-12-08

- On-site Partial Discharge Test Method of 750 kV Shunt Reactor in High Altitude Area
- Vol. 45, Issue 9, Pages: 2827-2833(2019)
- 作者机构：
  
  1. 西安交通大学电气工程学院
  2. 国网青海省电力有限公司电力科技研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 September 2019，
  
  Published：2019
- 稿件说明：
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HE Jiaxin, KANG Jun, LI Jiangtao, et al. On-site Partial Discharge Test Method of 750 kV Shunt Reactor in High Altitude Area[J]. 2019, 45(9): 2827-2833.
DOI：

HE Jiaxin, KANG Jun, LI Jiangtao, et al. On-site Partial Discharge Test Method of 750 kV Shunt Reactor in High Altitude Area[J]. 2019, 45(9): 2827-2833. DOI：

摘要

并联电抗器是在超高压长距离输电工程中的必要的无功补偿设备。为判断投入运行后的750 kV并联电抗器整体绝缘性能

研究并提出了基于变频串联谐振技术的750 kV并联电抗器现场局部放电试验方法

并计算了回路参数

选取了试验设备;同时

考虑到高海拔地区低气压环境对设备外绝缘的影响

提出了相应的优化措施。在750 kV变电站内对并联电抗器进行了试验

试验结果显示:被试750 kV电抗器在80%出厂试验电压下局放量<290 pC

低于标准规定值

电抗器可正常运行。试验结果证明该套试验装置可应用于高海拔下750 kV并联电抗器局部放电的现场检测。

Abstract

Shunt reactor is an essential device in extra-high voltage（EHV） long distance transmission system. In order to judge the overall insulation performance of 750 kV shunt reactor in operation

we studied and proposed an on-site partial discharge（PD） test method for 750 kV shunt reactor based on frequency conversion resonance technology

calculated the loop parameters

and selected the test devices. Moreover

taking the impact of low-pressure environment at high altitude into account

we put forward the corresponding optimization measures on the external insulation of the equipment. Based on the theoretical studies

the on-site partial discharge tests of shunt reactor were carried out in 750 kV substation. The test results show that the partial discharge capacity of tested reactor is less than 290 pC

which is lower than the standard value

thus the reactor can operate normally. Therefor

the test method and this set of test device can be applied to a 750 kV shunt reactor PD test under high altitude conditions.

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