Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer

ZHAO Ru-guo

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Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer

更新时间：2024-09-14

- Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Issue 3, Pages: 46-47(2007)
- 作者机构：
  
  山东电力超高压公司,山东,济南,250021
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM451
- Published：2007，
- 稿件说明：
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[1]赵汝国.500kV电容式电压互感器电容值及介损值的现场测试[J].电力电容器,2007,{4}(03):46-47.

ZHAO RU-GUO. Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2007, (3): 46-47.
[1]赵汝国.500kV电容式电压互感器电容值及介损值的现场测试[J].电力电容器,2007,{4}(03):46-47. DOI：

ZHAO RU-GUO. Filed Measurement of Capacity and Dielectric Loss on Site for the TEHMP-500 Type 500kV Capacitive Voltage Transformer. [J]. Power capacitor & reactive power compensation, 2007, (3): 46-47. DOI：

摘要

TEHMP-500型500kV电容式电压互感器（CVT）由于在中间变压器一次绕组首端位置设置了一把接地刀闸

在现场测试中

通过操作外部的操作把手合上接地刀闸

使中间变压器一次绕组首端接地

可以很方便地采用反接法测试C13及C2的电容值及介损

克服了采用自激法测试的弊端。

Abstract

In the TEHMP-500 Type 500kV CTV

a grounding-switch is set in the front of the middle transformer primary turn.During measurement on site

the front of the middle transformer primary turns becomes on grounding through operating the outside handle to close the grounding-switch.Thus the capacitances of C13 and C2 and dielectric loss can be measured conveniently using inverse connecting method

the disadvantages of self-excitation method can be avoided.

关键词

电容式电压互感器（CVT）中间变压器接地刀闸

Keywords

capacitor voltage transformer（CVT）Middle TransformerGrounding-switch

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