300 MW机组启动备用电源改造探讨
武晋涛
（山西阳光发电有限责任公司，山西阳泉045200）
摘要： 为提高6 kV启动备用电源的运行可靠性和灵活性，降低启动备用变压器的无效损耗，结合YG电厂4×300 MW
机组6 kV启动备用电源设计，分析其存在的不足因素，进行启动备用变压器低压侧联络改造的可行性分析，提出优选方
案及其主要内容，阐明改造后新系统的运行特点，用以指导改造工作。
关键词： 300 MW 机组；启动备用电源；改造；探讨
中图分类号： TM762 文献标识码： A 文章编号： 2095-0802-(2016)05-0030-02
Transform Investigation on the Start Standby Power in 300 MW Unit
WU Jintao
(Yangguang Power Generation Co., Ltd. of Shanxi, Yangquan 045200, Shanxi, China)
Abstract: In order to improve operation reliability and flexibility of 6 kV start standby power and reduce the invalid loss of start
the standby transformer, combined with design of 6 kV start standby power supply of 4 伊300 MW unit in YG Power Plant, this
paper made analysis of its shortcomings factors, and feasibility analysis for performing transformation of low pressure and lateral
contact start standby power, put forward the optimization scheme and its main content, and clarified operation characteristics of
the new system after transforming to guide the transformation work.

 Key words: 300 MW unit; start standby power; modification; discussion