Application of On-line Detection Technology in the Fault Diagnosis of Transformer Bushing

QIU Taihong; LI Guowei; LUO Rongbo; WANG Junbo; HE Shenghong; HU Cong

doi:10.13296/j.1001-1609.hva.2015.09.027

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Application of On-line Detection Technology in the Fault Diagnosis of Transformer Bushing

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- Application of On-line Detection Technology in the Fault Diagnosis of Transformer Bushing
- High VoltageApparatus Vol. 51, Issue 9, Pages: 159-163(2015)
- 作者机构：
  
  广东电网有限责任公司佛山供电局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.09.027
  CLC： TM407
- Published：2015
- 稿件说明：
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[1]邱太洪,李国伟,罗容波,王俊波,何胜红,胡聪.带电检测技术在变压器套管故障诊断中的应用[J].高压电器,2015,51(09):159-163.

QIU Taihong, LI Guowei, LUO Rongbo, et al. Application of On-line Detection Technology in the Fault Diagnosis of Transformer Bushing[J]. High voltageapparatus, 2015, 51(9): 159-163.
[1]邱太洪,李国伟,罗容波,王俊波,何胜红,胡聪.带电检测技术在变压器套管故障诊断中的应用[J].高压电器,2015,51(09):159-163. DOI： 10.13296/j.1001-1609.hva.2015.09.027.

QIU Taihong, LI Guowei, LUO Rongbo, et al. Application of On-line Detection Technology in the Fault Diagnosis of Transformer Bushing[J]. High voltageapparatus, 2015, 51(9): 159-163. DOI： 10.13296/j.1001-1609.hva.2015.09.027.

摘要

主要介绍带电检测技术在110 kV变压器套管故障诊断中的成功应用案例。针对佛山局某110 kV变电站2号主变压器变高C相套管常规试验介损值、电容量超过规定值

套管油色谱试验发现乙炔超标的情况

对该套管进行带电测试

确定该套管存在缺陷;对套管高压介损和局部放电试验并解体发现

在该套管第1屏和第2屏存在放电痕迹

验证了测试结果。

Abstract

Aiming at the phenomena that the dielectric loss and capacitance exceeded the specified values in conventional test of high-voltage C-phase bushing of the No. 2 transformer in the 110 kV substation

Foshan Power Supply Bureau

and acetylene was also found in the oil test

on-line detection was conducted for the bushing and the existence of a defect was determined. Hence

high-voltage dielectric loss and partial discharge tests

as well as disassembly inspection

were performed to find the traces of discharge on the first and second screens of the bushing

which verified the result of the on-line detection.

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