Analysis of anomaly in turbine latchon operation caused by fault of latchon electromagnetic valve

Huadian Technology ›› 2012, Vol. 34 ›› Issue (6): 56-57.

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Analysis of anomaly in turbine latchon operation caused by fault of latchon electromagnetic valve

CUI Yanting1, YANG Shaoxuan1, WANG Qing2

1.North China Electric Power Research Institute Company Limited, Beijing 100045, China; 2.Beijing Energy Investment Holding Company Limited, Beijing 100022, China

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

Abstract

Abstract: The turbine latchon process was introduced. The hazard caused by fault of latchon electromagnetic valve was analyzed. A typical case occurred in startup process of an 80MW unit was expounded, in which, after the highpressure oil pump started, the steam turbine can not be latched on. After the fault had been treated, the unit had been latched on successfully.

Key words: steam turbine, digital electro-hydraulic control system (DEH), emergency governor, latch-on electromagnetic valve

CUI Yanting;YANG Shaoxuan;WANG Qing. Analysis of anomaly in turbine latchon operation caused by fault of latchon electromagnetic valve[J]. Huadian Technology, 2012, 34(6): 56-57.

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Analysis of anomaly in turbine latchon operation caused by fault of latchon electromagnetic valve

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