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

Huadian Technology ›› 2009, Vol. 31 ›› Issue (3): 62-64.

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

GUO Libin¹, YAO Qingrong²

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 Online:2009-03-25 Published:2009-03-25

Abstract

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

GUO Libin;YAO Qingrong. Analysis and treatment of power frequency interference inducing microcomputer based protection misoperation[J]. Huadian Technology, 2009, 31(3): 62-64.

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