110kV变电站10kV系统抗晃电优化设计

110kv substation 10 kv system optimization design for electricity shakes

现代化大型矿山主降压变电站设计用电容量较大,中压（10千伏）在运行短路时晃电现象严重,为研究解决企业供电系统运行不稳定问题,确保系统不因晃电现象造成用电设备停运,根据各用电负荷及故障情况不用,通过分期的方式在主降压变电站10千伏用电馈线出口串联限流电抗器或带快速开关的串联限流电抗器,两种串联方案并存,通过计算能够有效地解决企业母线上电压陡降问题,又兼顾改造投资及运行损耗,最终消除企业供电系统晃电问题的存在。

Modern large-scale mine main step-down transformer substation design electricity capacity is larger,medium voltage（ 10 kv） when running short circuit sway electricity phenomenon is serious,as the study solved the problem of instability of the enterprise power supply system running,make sure the system is not suspended due to sway phenomenon of electric power equipment,according to the load and fault condition without electricity,through the way of installment in the main step-down transformer substation 10 kv power feeder exports current limiting reactor in series or fast switch current limiting reactor in series,two series solution,can effectively solve the enterprise by calculation on bus voltage steep fall in question,and renovation investment and operating losses,eventually eliminate the existence of sway electrical problem of the enterprise power supply system about electricity.