Analysis of a 500 kV CVT Voltage-measurement Exception

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- Analysis of a 500 kV CVT Voltage-measurement Exception
- High VoltageApparatus Issue 1, Pages: 76-77+80(2008)
- 作者机构：
  
  1. 浙江省送变电工程公司
  2. 浙江省电力公司超高压建设分公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM451
- Published：2008
- 稿件说明：
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[1]李丐燕,张金强.一例500 kV CVT电压测量异常分析与处理[J].高压电器,2008(01):76-77+80.

LI Gai-yan1, ZHANG Jin-qiang2. Analysis of a 500 kV CVT Voltage-measurement Exception[J]. High voltageapparatus, 2008, (1): 76-77+80.
[1]李丐燕,张金强.一例500 kV CVT电压测量异常分析与处理[J].高压电器,2008(01):76-77+80. DOI：

LI Gai-yan1, ZHANG Jin-qiang2. Analysis of a 500 kV CVT Voltage-measurement Exception[J]. High voltageapparatus, 2008, (1): 76-77+80. DOI：

介绍了一例500 kV CVT发生电压测量故障后的返厂检查和测试情况

并根据电容分压原理对出现的电压异常现象进行理论分析

认为CVT误差增大的主要原因是某电容元件击穿所致

要求制造厂加强设备生产质量管理。

This paper reports the check and test of a faulty 500 kV CVT

analyzes the abnormal phenomenon during voltage measuring based on voltage-dividing theory

then concludes that the breakdown of some capacity cells causes CVT inaccuracy

and the quality control of electrical equipment is necessary to be guaranteed by the manufacturers.

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