Analysis on incorrect tripping accident of protection device caused by defect in secondary circuit of voltage transformer

Huadian Technology ›› 2012, Vol. 34 ›› Issue (6): 54-55.

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Analysis on incorrect tripping accident of protection device caused by defect in secondary circuit of voltage transformer

WEI Gang, WANG Xiaoqi

Changzhi Power Supply Company, Changzhi 046011, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-06-25 Published:2012-06-25

Abstract

Abstract: The connection of the secondary circuit of voltage transformer is crucial to safety of the power grid, and under certain conditions, the defect existing in the secondary circuit of voltage transformer may easily lead to incorrect tripping of protection device. An incorrect tripping accident of protection device caused by defect in the secondary circuit of the voltage transformer was introduced. The reasons of the accident were analyzed, and relevant solution was proposed.

Key words: secondary circuit of voltage transformer, protection device, incorrect tripping, analysis

WEI Gang;WANG Xiaoqi. Analysis on incorrect tripping accident of protection device caused by defect in secondary circuit of voltage transformer[J]. Huadian Technology, 2012, 34(6): 54-55.

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Analysis on incorrect tripping accident of protection device caused by defect in secondary circuit of voltage transformer

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