Non-contact Dielectric Loss Measurement Method of CVT Based on Self Excitation Method

SU Yongmei; WANG Zhenyu

doi:10.14044/j.1674-1757.pcrpc.2016.06.028

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Non-contact Dielectric Loss Measurement Method of CVT Based on Self Excitation Method

更新时间：2024-09-14

- Non-contact Dielectric Loss Measurement Method of CVT Based on Self Excitation Method
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 37, Issue 6, Pages: 160-164(2016)
- 作者机构：
  
  郑州职业技术学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2016.06.028
  CLC： TM451
- Published：2016，
- 稿件说明：
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[1]苏咏梅,王振宇.基于自激法的非接触式CVT介损测量方法[J].电力电容器与无功补偿,2016,37(06):160-164.

SU YONGMEI, WANG ZHENYU. Non-contact Dielectric Loss Measurement Method of CVT Based on Self Excitation Method. [J]. Power capacitor & reactive power compensation, 2016, 37(6): 160-164.
[1]苏咏梅,王振宇.基于自激法的非接触式CVT介损测量方法[J].电力电容器与无功补偿,2016,37(06):160-164. DOI： 10.14044/j.1674-1757.pcrpc.2016.06.028.

SU YONGMEI, WANG ZHENYU. Non-contact Dielectric Loss Measurement Method of CVT Based on Self Excitation Method. [J]. Power capacitor & reactive power compensation, 2016, 37(6): 160-164. DOI： 10.14044/j.1674-1757.pcrpc.2016.06.028.

摘要

通过对现有电容式电压互感器（CVT）介损测量法的分析

提出了基于自激法的非接触式CVT介损测量。设计了非接触式介损测量平台对经过CVT的电压电流数据进行同步采集

然后通过无线传输模块将所测得的电参数数据传输至计算机终端

利用Lab VIEW软件程序编辑谐波分析法

对电参数进行处理并计算

最终获得介损值tanδ。该测量法不仅能准确测出CVT各部分电容器的介损值和瞬时电容值

而且在介损测试中能有效地与一次高压设备进行电气隔离

具有较高的便捷性和实用性。

Abstract

The non-contact dielectric loss measurement of capacitor voltage transformer（CVT）is proposed through analysis of the dielectric loss measurement method of existing CVT. The non-contact dielectric loss platform is designed and synchronous data acquisition of voltage and current passing through the CVT is made. Then the data of electrical parameters obtained by wireless transmission module is transmitted to computer termination. The electrical parameters are processed and calculated by the use of harmonic analysis on Lab VIEW software platform and the dielectric loss（tanδ）is finally obtained. This measurement method can not only measure the dielectric loss and transient capacitance of each capacitor of CVT

but also perform electrical isolation with primary high voltage equipment effectively in the dielectric loss measurement and has higher convenience and practicability.

关键词

CVT介质损耗非接触电压电流测量

Keywords

capacitive voltage transformerdielectric lossnon-contactvoltage and current measurement

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