Local Heating Modification on T-shaped Double Conductor of 35 kV Dry-type Shunt Reactor

FAN Guozhu; LUO Wei

doi:10.14044/j.1674-1757.pcrpc.2017.06.017

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Local Heating Modification on T-shaped Double Conductor of 35 kV Dry-type Shunt Reactor

更新时间：2024-09-14

- Local Heating Modification on T-shaped Double Conductor of 35 kV Dry-type Shunt Reactor
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 6, Pages: 83-86(2017)
- 作者机构：
  
  1. 国网江西省电力公司检修分公司
  2. 华东交通大学电气与自动化工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.06.017
  CLC： TM47
- Published：2017，
- 稿件说明：
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[1]范国柱,罗微.35kV干式并联电抗器T形双导线局部发热改造[J].电力电容器与无功补偿,2017,38(06):83-86.

FAN GUOZHU, LUO WEI. Local Heating Modification on T-shaped Double Conductor of 35 kV Dry-type Shunt Reactor. [J]. Power capacitor & reactive power compensation, 2017, 38(6): 83-86.
[1]范国柱,罗微.35kV干式并联电抗器T形双导线局部发热改造[J].电力电容器与无功补偿,2017,38(06):83-86. DOI： 10.14044/j.1674-1757.pcrpc.2017.06.017.

FAN GUOZHU, LUO WEI. Local Heating Modification on T-shaped Double Conductor of 35 kV Dry-type Shunt Reactor. [J]. Power capacitor & reactive power compensation, 2017, 38(6): 83-86. DOI： 10.14044/j.1674-1757.pcrpc.2017.06.017.

摘要

针对江西电网某500 kV变电站35 kV干式并联电抗器相间T形双导线局部发热现象

采用砂纸打磨接触面、紧固螺栓、酒精擦拭和涂抹导电膏等方法都不能很好地解决发热现象。经过分析发现

由于电抗器磁场的影响

安装的间隔棒的双导线上产生了环流和涡流

导致局部导线及其间隔棒发热严重。针对这一原因对T形双导线进行改造

用LGJQT1400单导线代替原双导线和间隔棒

消除电抗器附近的闭合环路

彻底解决发热问题。

Abstract

As for the local heating circumstance on T-shaped double conductor between phases of 35 kV dry-type shunt reactor at certain 500 kV substation in Jiangxi power grid

it is not solved thoroughly by such method as grinding contact surface with sand paper

tightening bolts

cleaning with alcohol and applying conductive grease etc..It is found through analysis that the severe heating of local conductor and its spacer is due to the loop current and eddy current from the double conductor of the spacer because of the magnetic field influence of reactor.For this

the T-shaped conductor is modified and the LGJQT1400 single conductor is used to replace original double conductor and spacer

thus the closed loop near reactor is eliminated and the local heating is solved completely.

关键词

干式并联电抗器T形双导线环流发热

Keywords

dry-type shunt reactorT-shaped double conductorloop currentheating

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