Feasibility study and practice of checking the polarity of differential protection by using the inrush current

WANG Feifei

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Feasibility study and practice of checking the polarity of differential protection by using the inrush current

更新时间：2025-11-18

- Feasibility study and practice of checking the polarity of differential protection by using the inrush current
- Vol. 36, Issue 6, Pages: 26-29(2016)
- 作者机构：
  
  清远蓄能发电有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM773;TV734
- Published：2016
- 稿件说明：
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[1]王霏霏.利用励磁涌流校核差动保护极性的可行性研究与实践[J].湖南电力,2016,36(06):26-29.

WANG Feifei. Feasibility study and practice of checking the polarity of differential protection by using the inrush current[J]. 2016, 36(6): 26-29.
[1]王霏霏.利用励磁涌流校核差动保护极性的可行性研究与实践[J].湖南电力,2016,36(06):26-29. DOI：

WANG Feifei. Feasibility study and practice of checking the polarity of differential protection by using the inrush current[J]. 2016, 36(6): 26-29. DOI：

摘要

以清蓄电厂为例介绍利用主变压器充电时的励磁涌流校核差动保护极性的可行性分析和实践过程

该方法克服电厂负荷低的困难

利用励磁涌流电流导相偏置的特点开展带负荷检查

具有实际工程意义

可供新并网厂站校核差动保护极性作参考。

Abstract

Taking Qingyuan power plant as an example

the feasibility analysis and practice are introduced using the main transformer charging excitation inrush current to check the polarity. The methed can overcome the difficuties of low load and check polarity of the differential protectin with load by the characteristics of inrush current pilot bias. The result illustrate this method has engineering significance

and it can be a reference for new power plant to check the polarity of the differential protection.

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Related Institution

Hunan Electric Power Test & Research Institute

Hunan Electric Power Dispatch & Communication Center

EHV Administration of Hunan Electric Power Corporation

湖南省电力公司超高压管理局湖南长沙410015

State Grid Hunan Electric Power Corporation Zhuzhou Power Supply Company

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