110kV GIS市区变电站设计技术

Technical design for 110 kV GIS substation in urban district

110kV市区变电站设计是城网建设中较为关键的技术环节。根据无人值班变电站要求,提出110kV市区变电站应从电力系统整体出发,力求电气主接线简化,配置与电网结构相应的保护系统。简化电气主接线,提高可靠性,电气设备的质量和技术特性极为关键。由于科学技术的进步,现在已发展为全封闭组合电器(GIS)。同时,市区变电站必须坚持节约用地、减少建筑面积的原则,及随着城市居民对居住环境的要求日益提高,110kV市区变电站宜采用全户内布置方式。

It is a key technical link in urban power network to design for 110 kV substation in urban district. According to the demand of no-man substation, this paper suggests that the design should consider the power system, simplify the main electrical scheme, dispose relevant safeguarding system to the structure of power network. Simplification of main electrical scheme can improve reliability and quality and technical specific property of electrical equipment. With the technical advancement, Gas-insulated metal-enclosed switichger(GIS) has been suggested. At the same time, principles of economization on land, reduction in build-up area must be adhered to. With the improvement of living enviroment, it is better to adopt the in-doors collocation for 110 kV substiation in urban district.