摘要
某500 kV变电站经过多次扩建后,站用电系统已不能满足5号主变扩建的需求,需要改造。站用电系统改造包括站用变压器增容和站用电屏改造两部分。改造方案有彻底更换站用变压器方案和增加3号站用变方案两种。经过技术经济比选,最终采用增加3号站用变的方案,该方案具有节约投资、停电时间短、便于实施和便于后期维护等特点。文章分析改造后该500 kV变电站站用电系统的可靠性,提出改造方案实施的措施。
A 500 kV substation has been expanded several times,the station power system can not meet the expansion requirements of No.5 main transformer,and needs to be reformed.The transformation of station power system includes two parts:capacity increase of station transformer and transformation of station power screen.The renovation scheme includes completely replacing transformer for station and adding transformer for station 3.After technical and economic comparison,the scheme of adding substation No.3 is finally adopted.The scheme has the characteristics of saving investment,short blackout time,easy implementation and later maintenance.This paper analyzes the reliability of the power system of the 500 kV substation after reconstruction,and puts forward the measures for the implementation of the transformation scheme.
作者
侯国柱
费雪萍
HOU Guo-zhu;FEI Xue-ping(Inner Mongolia Electic Power Survey&Design Institute Co.,Ltd.,Hohhot 010020,China)
出处
《电力勘测设计》
2021年第2期8-11,45,共5页
Electric Power Survey & Design
关键词
500
kV变电站
扩建
站用电系统
站用电屏
500 kV substation
expansion
station power system
station power screen
