110 kV GIS配电装置电气接线方案分析研究  

Analysis research on electrical connection of 110kV GIS switchgear

作　　者：杨帆 YANG Fan(Wuhan Linkedo Engineering Design Co.,Ltd.,Wuhan 430000,Hubei,China)

机构地区：[1]武汉联动设计股份有限公司,湖北武汉430000

出　　处：《工程建设》2022年第2期34-39,共6页Engineering Construction

摘　　要：目前,220 kV变电站设计方案中110 kV GIS配电装置以双母线接线方案为主,此接线方案在运行阶段存在间隔扩建时难以对重要用户停电的问题,因此需要对接线方案进行优化。本文通过对110 kV GIS配电装置采用单母线三分段接线与双母线接线两种接线形式,从可靠性、运行方式、扩建停电施工、经济性4个方面进行了详细的比较分析。结果表明:两种接线形式可靠性相当,单母线三分段接线扩建时停电影响范围较小,且相同规模条件下,单母线三分段接线的造价更经济。另外,针对采用双母线接线方案,建议重要用户的双电源取自不同变电站来避免扩建停电的问题。At present,in the design scheme of 220 kV substation,the 110 kV GIS switchgear has mainly adopted the double bus connection scheme,which is difficult to cut off power supply for important users when it comes to line bay expansion in the operation stage,so the connection scheme needs to be optimized.In this paper,single bus with threesections and double bus connection of 110 kV GIS switchgear are analyzed in terms of the reliability,operation mode,power-off construction and economy.The results show that the reliability of the two connections is equivalent,and the influence range of power outage during the expansion of single bus with three-section connection is small.Under the condition of the same scale,the cost of single bus with three-section connection is more economical.In addition,for the double bus connection scheme,it is suggested that the double power supply of important users should be taken from different substations to avoid power failure in expansion.

关 键 词：110 kV GIS配电装置 双母线接线 单母三分段接线 

分 类 号：TM64[电气工程—电力系统及自动化]