220kV单电源环网及主变110kV侧并列运行的探讨  

Discussion on Parallel Operation of 220 kV Single Source Loop and High Voltage Side of 110 kV Main Transformer

作　　者：杜西祥[1] 

机构地区：[1]宿迁供电公司,江苏宿迁223800

出　　处：《江苏电机工程》2015年第3期69-71,共3页Jiangsu Electrical Engineering

摘　　要：针对220kV单电源和2台及以上主变的220kV变电站的接线,有单位在个别变电站采用220kV单电源环网及220kV降压变110kV侧并列运行的方式。结合电网运行实际,从保护专业方面对该运行方式进行了分析,提出了目前电网不宜采用220kV单电源环网及220kV降压变110kV侧并列运行的建议。In 220 kV substations, parallel operation 220 kV Single Source loop and high voltage side of 1 10 kV main transformer is adopted sometimes. This paper analyses current situation of the Suqian power grid. Also, performance of wire modes of parallel operation 220 kV Single Source loop and high voltage side of 110 kV main transformer are analyzed. Based on the analysis, we suggest that it is inappropriate of using these wiring mode in the Suqian power grid.

关 键 词：电网运行 单电源环网 主变并列 

分 类 号：TM406[电气工程—电器]