扩大外桥式接线改建工程相关问题分析  

Analysis of related problems for enlarged external bridge reconstruction project

作　　者：王亚洲[1] 官金兴[1] 

机构地区：[1]南京供电公司,江苏南京210019

出　　处：《江苏电机工程》2013年第1期59-60,64,共3页Jiangsu Electrical Engineering

摘　　要：110 kV变电站多为桥式或线变组接线,扩大桥式接线方式由于结构及保护二次较为复杂,实际应用较少,而扩大外桥式接线变电站拆除第3台主变的改建工程也较少。以南京地区110 kV集庆变改建工程为例,分析了改建工程中一、二次调整应考虑问题、验收及设备运行注意事项,对工程验收及设备运行提供一定的帮助。Bridge wiring and line-transformer unit wiring are widely used in 110 kV substation. Enlarged bridge wiring is less used because of its complex structure and secondary circuit of relay protection. Reconstruction projects of removing the third transformer are also rare in substations with enlarged external bridge wiring. Take the reconstruction project of 110kV Jiqing substation in Nanjing for example, this paper analyses the problems that should be taken into account when regulating the primary and secondary system. Announcements in acceptance tests and equipment operation are also discussed. The issues studied in this paper could help with acceptance tests and equipment operation, and offer solutions for similar problems.

关 键 词：扩大外桥 备自投 分析 

分 类 号：TM63[电气工程—电力系统及自动化]