Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I<sub>0</sub> and 3U<sub>0</sub> Abrupt Change Startup

WEN Ling′an; LIN Yongyuan

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Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I₀ and 3U₀ Abrupt Change Startup

更新时间：2025-04-27

- Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I₀ and 3U₀ Abrupt Change Startup
- Vol. 40, Issue 4, Pages: 60-62(2021)
- 作者机构：
  
  1. 广东粤电大亚湾综合能源有限公司
  2. 广东惠州平海发电厂有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2021
- 稿件说明：
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WEN Ling′an, LIN Yongyuan. Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I₀ and 3U₀ Abrupt Change Startup[J]. 2021, 40(4): 60-62.
DOI：

WEN Ling′an, LIN Yongyuan. Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I₀ and 3U₀ Abrupt Change Startup[J]. 2021, 40(4): 60-62. DOI：

摘要

某发电厂发电组故障录波屏中2号发电机中性点I

突然出现突变量启动

并伴随发电机机端3U

波形同步突变的现象。针对该发电机中性点I

和3U

突变的原因做出了缺陷判断

并通过停机检修确定了引起突变量产生的根本原因。最后

结合缺陷处理经验

提出做好发变组系统绝缘监视的参考建议。

Abstract

in the fault recording screen of a power plant

theI

at the neutral point of No.2 Generator suddenly starts up

accompanied by the synchronous sudden change of 3U

waveform at the generator end. According to the cause of I

and 3U

sudden change of the generator neutral point

the defect judgment was made

and the root cause of the sudden change was determined through shutdown for maintenance. Finally

combined with the experience of defect treatment

puts forward some suggestions for insulation monitoring of generator transformer unit system.

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Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I0 and 3U0 Abrupt Change Startup

DOI：

摘要

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关键词

Keywords

references

Analysis of Insulation Defects of Generator-Transformer Group Separate-phase Sealing Bus Based on I₀ and 3U₀ Abrupt Change Startup