ON-LINE DETECTION OF OLTC MECHANICAL PERFORMANCE

WU Hao; LIU Qing-shi; LIU Wei-dong; QIAN Jia-li

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ON-LINE DETECTION OF OLTC MECHANICAL PERFORMANCE

更新时间：2025-04-26

- ON-LINE DETECTION OF OLTC MECHANICAL PERFORMANCE
- High VoltageApparatus Issue 3, Pages: 18-20(2003)
- 作者机构：
  
  1.   清华大学电机工程与应用电子技术系
  2.   北京供电局修试处
  3.   清华大学电机工程与应用电子技术系北京 100084
  4.   北京 100075
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM407
- Published：2003
- 稿件说明：
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[1]吴昊,刘庆时,刘卫东,钱家骊.调压变压器有载分接开关机械性能的在线检测[J].高压电器,2003(03):18-20.

WU Hao, LIU Qing-shi, LIU Wei-dong, et al. ON-LINE DETECTION OF OLTC MECHANICAL PERFORMANCE[J]. High voltageapparatus, 2003, (3): 18-20.
[1]吴昊,刘庆时,刘卫东,钱家骊.调压变压器有载分接开关机械性能的在线检测[J].高压电器,2003(03):18-20. DOI：

WU Hao, LIU Qing-shi, LIU Wei-dong, et al. ON-LINE DETECTION OF OLTC MECHANICAL PERFORMANCE[J]. High voltageapparatus, 2003, (3): 18-20. DOI：

摘要

介绍了调压变压器有载分接开关机械性能的在线检测系统。信号测量包括操动机构和分接开关之间传动杆的转角信号、触头碰撞的振动信号和驱动电机的电流信号。根据这些测量

可以检查切换操作中各种机械事件的时序以及驱动电机的力矩

发现机械性能的改变。初步的现场检测表明

这种在线检测方案是可行的。

Abstract

A portable system has been developed for on-line detection of mechanical performance of on-load tap changers in voltage regulation transformers. The measurement is made on the rolling angle of the driving rod connected between the operation mechanism and the switches

the acoustic bursts produced by the contact impacting and the current of the driving electromotor. Based on the measurement

the time sequence of the mechanical events in one switching operation and the force moment of the driving electromotor can be examined

and the decline of on-load tap changer performance can be recognized. The preliminary field tests show that the on-line detection scheme is feasible.

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