Analysis on Inrush Current and Inhibition Methods of Main Transformer in Nuclear Power Plant

FU Fengnian; SHEN Hengyi; LYU Jie

doi:10.13296/j.1001-1609.hva.2015.06.016

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Analysis on Inrush Current and Inhibition Methods of Main Transformer in Nuclear Power Plant

更新时间：2025-04-26

- Analysis on Inrush Current and Inhibition Methods of Main Transformer in Nuclear Power Plant
- High VoltageApparatus Vol. 51, Issue 6, Pages: 86-89(2015)
- 作者机构：
  
  中广核工程有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.06.016
  CLC： TM407;TM623
- Published：2015
- 稿件说明：
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[1]付丰年,沈恒毅,吕杰.关于核电主变励磁涌流的分析及抑制措施研究[J].高压电器,2015,51(06):86-89.

FU Fengnian, SHEN Hengyi, LYU Jie. Analysis on Inrush Current and Inhibition Methods of Main Transformer in Nuclear Power Plant[J]. High voltageapparatus, 2015, 51(6): 86-89.
[1]付丰年,沈恒毅,吕杰.关于核电主变励磁涌流的分析及抑制措施研究[J].高压电器,2015,51(06):86-89. DOI： 10.13296/j.1001-1609.hva.2015.06.016.

FU Fengnian, SHEN Hengyi, LYU Jie. Analysis on Inrush Current and Inhibition Methods of Main Transformer in Nuclear Power Plant[J]. High voltageapparatus, 2015, 51(6): 86-89. DOI： 10.13296/j.1001-1609.hva.2015.06.016.

摘要

两个核电厂主变型号相同

但历次冲击合闸时励磁涌流存在较大差异

结合励磁涌流的产生机理

通过对剩磁、合闸相角及结构参数对励磁涌流的影响进行分析

最终明确了漏磁通道的有效面积的差异是导致励磁涌流存在差异的主要原因

另对后续变压器的励磁涌流控制提出了建议措施。

Abstract

Though the specifications of main transformers in two nuclear power plants are the same

the inrush currents generated by no-loading switching operations are distinct. Through analyzing the mechanism of inrush current

combined with analysis of the influences produced by remanence

switching phase and structure parameters

it can be concluded that the effective dimension of leakage flux channel contributes most to the variations generated by inrush currents. Further

some mathods on how to control the inrush currents are proposed.

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