New scheme for improvement of reliability of emergency power supply system of 1000MW unit

Abstract

Abstract: Abstract:To provide power supply for oil pumps of the steam turbine and the feed pump turbine and other important loads under unit fault condition is the key task of the 400V emergency power supply system of power plant. The startup failure of the diesel generator set in the emergency power supply system will caused the 400V emergency power supply system to be not able to supply power under emergency condition, which may lead major accident and massive loss. Based on conventional design of the emergency power supply system for 1000MW unit given by design institute, a new scheme was proposed, which can improve the reliability of the 400V emergency power supply system effctively.

Key words: Keywords:1000MW unit, emergency power supply system, diesel generator unit, electrical contact, operation mode, overhaul

LI Qingchang, WANG Jiazi. New scheme for improvement of reliability of emergency power supply system of 1000MW unit[J]. Huadian Technology, 2015, 37(4): 14-15.

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New scheme for improvement of reliability of emergency power supply system of 1000MW unit

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