Test of Winding Deformation without Disconnection for 220 kV Transformer

LI Shun-yao; XIE Jian-rong

doi:10.13296/j.1001-1609.hva.2010.09.022

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Test of Winding Deformation without Disconnection for 220 kV Transformer

更新时间：2025-04-26

- Test of Winding Deformation without Disconnection for 220 kV Transformer
- High VoltageApparatus Vol. 46, Issue 9, Pages: 88-91(2010)
- 作者机构：
  
  广东东莞供电局试验研究所
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.09.022
  CLC： TM406
- Published：2010
- 稿件说明：
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[1]李顺尧,谢建容.220 kV变压器绕组变形不拆线测试方法探讨[J].高压电器,2010,46(09):88-91.

LI Shun-yao, XIE Jian-rong. Test of Winding Deformation without Disconnection for 220 kV Transformer[J]. High voltageapparatus, 2010, 46(9): 88-91.
[1]李顺尧,谢建容.220 kV变压器绕组变形不拆线测试方法探讨[J].高压电器,2010,46(09):88-91. DOI： 10.13296/j.1001-1609.hva.2010.09.022.

LI Shun-yao, XIE Jian-rong. Test of Winding Deformation without Disconnection for 220 kV Transformer[J]. High voltageapparatus, 2010, 46(9): 88-91. DOI： 10.13296/j.1001-1609.hva.2010.09.022.

摘要

变压器绕组变形测试是预防性试验不可缺少的试验项目

为提高工作效率

减少220 kV变压器拆接引线试验对设备造成的损害

大幅度降低试验拆接引线工作带来的高劳动强度

快速判断220 kV变压器绕组是否存在变形

笔者以频响法为主

短路阻抗法、电容变化法为辅

采用频响法、短路阻抗法、电容变化法3种方法

应用TDT5变形测试仪、HDZK-10 A低电压短路阻抗测试仪和AI600E型自动介损电桥

对220 kV变压器分别进行拆线与不拆线时绕组变形项目测试

通过3种试验方法所得数据进行对比分析

得出了220 kV变压器的变形测试项目可以用3种方法进行测试。

Abstract

To eliminate the harm of disconnecting winding leads to 220 kV transformer in winding deformation test

and rapidly judge whether winding deformation exists

the frequency response method

the short-circuit impedance method

and the electric capacity change method were adopted in 220 kV transformer winding deformation tests.A deformed winding was tested by TDT5 deformation tester

HDZK-10 A low voltage short-circuit impedance tester

and A1600E dielectric loss bridge

respectively

under two conditions of winding leads connection and winding leads disconnection.Comparison among the results from the three methods shows that all three methods can test winding deformation of 220 kV transformer without disconnecting the winding leads.

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Related Institution

State Grid Hubei Electric Power Company Technology and Training Center

College of Electrical Engineering and New Energy, China Three Gorges University

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State Grid Xinjiang Comprehensive Energy Service Co., Ltd.

School of Engineering and Technology, Southwest University

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