Problems Analysis Based on the Secondary Circuit Voltage Test of the Main Transformer Voltage Transformer Commissioning Problem

LI Zhen-qing; SHEN Liang; MA Dang-guo

doi:10.3969/J.ISSN.2095-3429.2017.01.012

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Problems Analysis Based on the Secondary Circuit Voltage Test of the Main Transformer Voltage Transformer Commissioning Problem

更新时间：2026-01-28

- Problems Analysis Based on the Secondary Circuit Voltage Test of the Main Transformer Voltage Transformer Commissioning Problem
- Vol. 38, Issue 1, Pages: 51-53(2017)
- 作者机构：
  
  1. 华电电力科学研究院,浙江,杭州,310013
  2. 本溪市发展和改革委员会,辽宁,本溪,117000
- 作者简介：
- 基金信息：
- DOI：10.3969/J.ISSN.2095-3429.2017.01.012
  CLC： TM-621
- Published Online：28 February 2017，
  
  Published：2017
- 稿件说明：
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LI Zhen-qing, SHEN Liang, MA Dang-guo. Problems Analysis Based on the Secondary Circuit Voltage Test of the Main Transformer Voltage Transformer Commissioning Problem[J]. 2017, 38(1): 51-53.
DOI：

LI Zhen-qing, SHEN Liang, MA Dang-guo. Problems Analysis Based on the Secondary Circuit Voltage Test of the Main Transformer Voltage Transformer Commissioning Problem[J]. 2017, 38(1): 51-53. DOI： 10.3969/J.ISSN.2095-3429.2017.01.012.

摘要

某2×600MW煤机电厂调试过程中

对#1主变电压互感器进行二次回路升压试验

试验期间发现第三个绕组的空开MCB9未合

却在其下口产生电压。经过多组加量分析后

发现问题并进行消缺

整改后对第三个绕组再次进行二次回路升压试验

试验结果正确无误

保证了调试进程。

Abstract

In the process of commissioning a 2*600MW Coal-fired power plant

The secondary circuit voltage test of # 1 main transformer voltage transformer was carried out. During the test it was found that the vacuum switch MCB 9 of the third winding was not closed

but A voltage is generated at the non-charged side of the switch. After a number of experimental analysis

the problem was found and solved. The secondary circuit voltage test of # 1 main transformer voltage transformer is carried out again. The test results are correct

ensuring the commissioning process

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