On-line Measurement of Electric Impedance and Its Application to Testing Electric Power Equipment

WU Song-le

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On-line Measurement of Electric Impedance and Its Application to Testing Electric Power Equipment

更新时间：2025-04-26

- On-line Measurement of Electric Impedance and Its Application to Testing Electric Power Equipment
- High VoltageApparatus Issue 2, Pages: 145-147(2004)
- 作者机构：
  
  广东省江门市新会成人中等专业学校,广东,江门,529100
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM76
- Published：2004
- 稿件说明：
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[1]伍松乐.阻抗在线测量方法及其在电力设备检测中的应用[J].高压电器,2004(02):145-147.

WU Song-le. On-line Measurement of Electric Impedance and Its Application to Testing Electric Power Equipment[J]. High voltageapparatus, 2004, (2): 145-147.
[1]伍松乐.阻抗在线测量方法及其在电力设备检测中的应用[J].高压电器,2004(02):145-147. DOI：

WU Song-le. On-line Measurement of Electric Impedance and Its Application to Testing Electric Power Equipment[J]. High voltageapparatus, 2004, (2): 145-147. DOI：

摘要

阐述了基于端口信号能量测量的电网络阻抗的在线测量方法

讨论了该方法在电力设备等值阻抗测量中的应用。用电能计量仪表同时测量电力设备接口处电压信号和电流信号的能量

可以计算出设备的等值阻抗。这种测量方法既不中断设备运行

又能反映实际工作环境对设备阻抗的影响

具有较高的实用价值。最后举例说明了该方法在电力设备监测中的应用。

Abstract

The measurement of equivalent impedance in electric power equipment is an important tool of electrical engineering research. A novel measuring method of electric network impedance based on the energy function of port signals is described

and its application in electric power equipment is discussed. The energy of voltage and current signals across the equipment terminals is measured by energy meter

then the equivalent impedance can be calculated. This on-line testing of electric equipment is very practical due to uninterrupted operation of the power system. Finally an example is taken to show the application.

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