Analysis on transverse differential protection application based on a hydroelectric generating accident

LIU Haifeng; XU Hao

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Analysis on transverse differential protection application based on a hydroelectric generating accident

更新时间：2025-11-18

- Analysis on transverse differential protection application based on a hydroelectric generating accident
- Vol. 37, Issue 1, Pages: 52-55(2017)
- 作者机构：
  
  国网湖南省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV737
- Published：2017
- 稿件说明：
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[1]刘海峰,徐浩.一例水电机组跳机事故引起的横差保护应用分析[J].湖南电力,2017,37(01):52-55.

LIU Haifeng, XU Hao. Analysis on transverse differential protection application based on a hydroelectric generating accident[J]. 2017, 37(1): 52-55.
[1]刘海峰,徐浩.一例水电机组跳机事故引起的横差保护应用分析[J].湖南电力,2017,37(01):52-55. DOI：

LIU Haifeng, XU Hao. Analysis on transverse differential protection application based on a hydroelectric generating accident[J]. 2017, 37(1): 52-55. DOI：

摘要

介绍了湖南某水电厂6号机组跳机事故的发生过程及原因

并基于保护动作情况

进一步探讨了该机组配备的2种横差保护的动作特性和缺陷。通过对横差不平衡电流与发电机机端电流的相关性分析和现场试验结果

给出了横差保护的比率制动特性整定方法。

Abstract

The paper analyzes the process and cause of the tripping accident of a certain unit in a hydropower plant

and in terms of the protection actions

explores operating characteristics and defects of two transverse differential protection further.According to correlation analysis between transverse differential unbalance current and generator terminal current

the paper proposes the setting method of transverse differential protection at last.

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