变电站电气主接线是指变电站的变压器、输电线路怎样与电力系统相连接，从而完成输配电任务。变电站的主接线是电力系统接线组成中一个重要组成部分Our HometownTianjinTianjin is a good choice as a travel destination. With its cool sea breeze and fresh sea air you will definitely feel refreshed. Historical relics, natural scenery, temples, churches, assembly halls and commemorative sites of the Chinese revolution will illuminate Tianjins past, present and future.Nankai District （南开区）Tianjin Ancient Culture Street( 古文化街) Tianjin Ancient Culture Street with 600 years history.L
