Main transformer nonelectric quantity protection actionbymistake causes analysis and prevention measurements

Huadian Technology ›› 2017, Vol. 39 ›› Issue (7): 39-41.

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Main transformer nonelectric quantity protection actionbymistake causes analysis and prevention measurements

Huadian Energy Company Limited Mudanjiang No.2 Power Plant, Mudanjiang 157015, China

Published:2017-07-25

Abstract

Abstract:

Based on the accident of a power plant unit No.9 nonplaned outage, by test analysis and inspection, the integrated converter in winding temperature controller was found burn, and caused winding temperature raising and nonelectric protection action. After main transformer outlet tripped, unit stopped. Based on relative standards, the prevention and treatment measurements were indicated after nonelectric protection trip switch was outofservice, to prevent nonplaned outage.

Key words:

main transformer, nonelectric protection, winding temperature, integrated converter, nonplaned outage

BAI Guogang.

Main transformer nonelectric quantity protection actionbymistake causes analysis and prevention measurements

[J]. Huadian Technology, 2017, 39(7): 39-41.

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Main transformer nonelectric quantity protection actionbymistake causes analysis and prevention measurements

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