Simulation and Experiment Study on the Validity of the Method for Online Detecting Slight Deformation of Transformer Winding Based on the Nanosecond Pulse Response Method

DING Guocheng; CHEN Qingtao; TIAN Yu; TIAN Yuan; LIU Yunpeng; YANG Haitao; LI Changluan

doi:10.13296/j.1001-1609.hva.2017.04.022

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Simulation and Experiment Study on the Validity of the Method for Online Detecting Slight Deformation of Transformer Winding Based on the Nanosecond Pulse Response Method

更新时间：2025-04-26

- Simulation and Experiment Study on the Validity of the Method for Online Detecting Slight Deformation of Transformer Winding Based on the Nanosecond Pulse Response Method
- High VoltageApparatus Vol. 53, Issue 4, Pages: 137-143(2017)
- 作者机构：
  
  1. 国网安徽省电力公司电力科学研究院
  2. 国网安徽省电力公司
  3. 华北电力大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.04.022
  CLC： TM41
- Published：2017
- 稿件说明：
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[1]丁国成,陈庆涛,田宇,田源,刘云鹏,杨海涛,李昌鸾.基于纳秒级脉冲响应法带电检测变压器绕组微变形技术有效性仿真与试验研究[J].高压电器,2017,53(04):137-143.

DING Guocheng, CHEN Qingtao, TIAN Yu, et al. Simulation and Experiment Study on the Validity of the Method for Online Detecting Slight Deformation of Transformer Winding Based on the Nanosecond Pulse Response Method[J]. High voltageapparatus, 2017, 53(4): 137-143.
[1]丁国成,陈庆涛,田宇,田源,刘云鹏,杨海涛,李昌鸾.基于纳秒级脉冲响应法带电检测变压器绕组微变形技术有效性仿真与试验研究[J].高压电器,2017,53(04):137-143. DOI： 10.13296/j.1001-1609.hva.2017.04.022.

DING Guocheng, CHEN Qingtao, TIAN Yu, et al. Simulation and Experiment Study on the Validity of the Method for Online Detecting Slight Deformation of Transformer Winding Based on the Nanosecond Pulse Response Method[J]. High voltageapparatus, 2017, 53(4): 137-143. DOI： 10.13296/j.1001-1609.hva.2017.04.022.

摘要

为了实现带电检测电力变压器绕组变形、克服离线检测的不足

达到及时发现运行变压器潜伏性故障的目的

文中提出了基于套管末屏注入的绕组变形带电测试方法。利用纳秒脉冲源将检测频段提高至20 MHz

建立了绕组等效模型来仿真绕组变形

对实验室中的变压器绕组进行了带电检测试验

并对可能会对试验造成干扰的因素进行了研究。实验结果表明该方法能够有效识别绕组的微小变形

具备实际在线应用的潜力;而且信号源幅值、采样率、测量引线和高频CT的位置均对检测结果有不同程度的影响。

Abstract

In order to realize online detection of power transformer winding deformation

overcome shortcomings of offline detection

to discover transformer latent fault

this paper proposes a nanosecond pulse response analysis method for charged detecting slight deformation of transformer winding. Using nanosecond pulse source

detection frequency is increased to 20 MHz

winding equivalent model is set up to simulate the winding deformation

charged test of transformer winding is performed in the laboratory

and the interference factors of the test are studied. Experimental results show that the method could effectively identify the winding of slight deformation

with the potential of online application and signal source amplitude

the sampling rate

the measurement leads and the location of high-frequency CT would affect detection results in varying degrees.

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