Detection of Short Circuit Fault Between Transformer Windings Based on Sweep Frequency Impedance Method

SUN Xiang; HE Wenlin; QIU Wei; LIU Yong; JI Shengchang; YANG Fan

doi:10.13296/j.1001-1609.hva.2016.03.005

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Detection of Short Circuit Fault Between Transformer Windings Based on Sweep Frequency Impedance Method

更新时间：2025-04-26

- Detection of Short Circuit Fault Between Transformer Windings Based on Sweep Frequency Impedance Method
- High VoltageApparatus Vol. 52, Issue 3, Pages: 29-33(2016)
- 作者机构：
  
  1. 国网浙江省电力公司电力科学研究院
  2. 西安交通大学电力设备电气绝缘国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2016.03.005
  CLC： TM403.2
- Published：2016
- 稿件说明：
移动端阅览
[1]孙翔,何文林,邱炜,刘勇,汲胜昌,杨帆.基于扫频阻抗法的变压器匝间短路故障检测[J].高压电器,2016,52(03):29-33.

SUN Xiang, HE Wenlin, QIU Wei, et al. Detection of Short Circuit Fault Between Transformer Windings Based on Sweep Frequency Impedance Method[J]. High voltageapparatus, 2016, 52(3): 29-33.
[1]孙翔,何文林,邱炜,刘勇,汲胜昌,杨帆.基于扫频阻抗法的变压器匝间短路故障检测[J].高压电器,2016,52(03):29-33. DOI： 10.13296/j.1001-1609.hva.2016.03.005.

SUN Xiang, HE Wenlin, QIU Wei, et al. Detection of Short Circuit Fault Between Transformer Windings Based on Sweep Frequency Impedance Method[J]. High voltageapparatus, 2016, 52(3): 29-33. DOI： 10.13296/j.1001-1609.hva.2016.03.005.

摘要

文中以一种新型变压器绕组检测方法——扫频阻抗法为理论依据

建立了试验室测试系统

并利用该系统对单相双绕组变压器进行了测试。其结果表明:扫频阻抗法能够有效反映变压器绕组分布式参数

且其测试结果在频率大于11.5 k Hz时与频响曲线呈现轴对称关系;短路故障会造成50 Hz处阻抗值与相关系数皆发生变化

且故障越严重

阻抗值与相关系数的变化越明显。

Abstract

A laboratory measurement system is set up to test a single phase transformer with two windings by means of the novel sweep frequency impedance（SFI） method. The test results show that: 1)SFI curve can effectively reflect the distributed parameters of the transformer winding

and it displays axisymmetric relationship with the frequency response curve obtained in the same test condition for the frequency range from 11.5 k Hz to 1 MHz; and 2)Short circuit fault results in changes in both SFI and correlation coefficient at frequency of 50 Hz in the SFI curve

and the more serious the short circuit fault

the more obvious these changes.

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