空载母线电容测量及充电电流计算  

Capacitance Measurement and Charging Current Calculation of No-load Bus

作　　者：蒋圣超 刘力[2] 王乐 雷一鸣 

机构地区：[1]广西电网有限责任公司电力科学研究院,南宁530020 [2]广西经济管理干部学院,南宁530007

出　　处：《广西电力》2016年第5期9-11,27,共4页Guangxi Electric Power

摘　　要：为验证隔离开关分、合空载母线的可行性,对3座变电站的110 kV及220 kV母线对地电容和相间电容值进行了现场实测,运用MATLAB中的Simulink仿真工具箱搭建了等值电路,计算得到空载母线充电电流的大小,并分析了空载母线充电电流与母线结构的关系。从计算结果看,隔离开关可正常分、合空载母线的充电电流。In order to verify the feasibility of opening and closing no-load bus by disconnector, field tests of bus-to-ground capacitance and bus-to-bus capacitance of 110 kV and 220 kV buses have been measured in three substation, Equivalent circuits are built by using the Simulink simulation tools in MATLAB. Charging currents of no-load buses are calculated, and relations between the charging current of no-load bus and the structure of bus are analyzed. It can be seen from calculation results that the charging current of the no-load bus can be opened and closed normally by disconnector.

关 键 词：空载母线 电容测量 充电电流 隔离开关 仿真计算 

分 类 号：TM63[电气工程—电力系统及自动化]