Analysis on incorrect action of transformer differential protection

Huadian Technology ›› 2012, Vol. 34 ›› Issue (2): 43-46.

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Analysis on incorrect action of transformer differential protection

LIN Chubin

Jieyang Power Supply Bureau of Guangdong Power Grid Company, Jieyang 522000, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-02-25 Published:2012-02-25

Abstract

Abstract: Aiming at the incorrect action of the main transformer differential protection, the reasons of the incorrect action were analyzed. Starting from the collecting of the technical analysis materials of the incorrect action and the finding of reasons of the incorrect action, the method and procedure to inspect the incorrect action of the transformer differential protection were expounded, which provides reference for the relay protection professionals in field accident investigation.

Key words: transformer, differential protection, incorrect action, inspection

LIN Chubin. Analysis on incorrect action of transformer differential protection[J]. Huadian Technology, 2012, 34(2): 43-46.

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