华电技术 ›› 2009, Vol. 31 ›› Issue (3): 62-64.

• 技术交流 • 上一篇    下一篇

工频干扰引起微机保护误动的分析和处理

郭立斌1,姚庆荣2   

  1. 1.江苏太仓港协鑫发电有限公司,江苏太仓 215433;2.大唐国际陡河发电厂,河北唐山 063028
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-03-25

Analysis and treatment of power frequency interference inducing microcomputer based protection misoperation

GUO Libin1, YAO Qingrong2   

  1. 1.Jiangsu Taicang Harbor Xiexin Power Generation Corporation Limited, Taicang 215433, China;2. Douhe Power Plant, Datang International Power Generation Corporation Limited , Tangshan 063028, China
  • Received:1900-01-01 Revised:1900-01-01 Published:2009-03-25

摘要: 结合一起微机保护误动的实际调查和分析,简述了查找过程并分析原因,得出了交流工频干扰引起保护误动的结论,为今后分析和减少交流工频干扰提供参考。

关键词: 变压器, 微机综合保护, 交流工频, 干扰

Abstract: In combination with the investigation and analysis for a misoperation of microcomputer based protection, the troubleshooting process and cause analysis were described, the conclusion has been drawn that AC powerfrequency interference caused protection misoperation, which may provide a reference for analysis and reduction of AC powerfrequency interference hereafter.

Key words: transformer, microcomputer based comprehensive protection, AC power frequency, interference