500kV静安(世博)地下变电站站用配电系统及辅助系统设计  

Design of Auxiliary Distribution System and Its Auxiliary Systems for the 500 kV World-Expo Underground Substation

作　　者：刘贝宁[1] 沈婷[1] 

机构地区：[1]华东电力设计院,上海市200063

出　　处：《电力建设》2008年第7期15-19,共5页Electric Power Construction

摘　　要：在500 kV世博站全站安装3台(二用一备)正常站用变压器,变压器的容量选择5 000 kVA,工作/备用站用变采用分裂绕组变压器。站用电400V系统接线分为2部分,每部分采用单母线分段接线,分段开关为自动投切型。从站外引1路10kV专用线路作为全站失电后的恢复电源。地下变的照明系统的设计标准较高,闭路监控系统采用全数字式,电缆梯架和阻燃电缆的配合使用满足地下变对低压电缆敷设的要求,弱电部分采用防火型封闭式金属电缆槽盒。Three auxiliary transformations, two working and one backup, with 5 000 kVA capacity each and split winding are installed in the 500 kV World-Expo Substation. The connection of the 400V auxiliary power system is divided into two parts and each part adopts single bus-bar connection with automatic section switches. A 10 kV dedicated line from outside the station is introduced as recovery power supply in case of a power loss in the station. Higher design standard is applied to underground lighting system. All digital closed-circuit monitoring system is used. Combined usage of cable ladder and fire retardant cable meets low voltage cable laying requirement for underground transformer. Closed fire-proof metal cable boxes are used in secondary circuits.

关 键 词：500kV世博地下变电站 站用配电系统 设计 

分 类 号：TM63[电气工程—电力系统及自动化]