库什塔依水电站电气主接线设计

Design of Main Electric Connection for Kushitayi Hydropower Station

库什塔依水电站作为流域梯级水电站的汇流站,涉及不同的电压等级,其接线方式对电力系统稳定和安全运行有较大影响。根据电站自身条件,库什塔依水电站发电机和主变压器采用两组扩大单元接线,220 kV出线侧采用单母线分段接线。还介绍了电站两级电压之间的联络以及厂用电电源的接线方案。

Kushitayi Hydropower Station is taken as a power collection of cascade hydropower stations which involves different voltage levels. The main electric connection has greater impact on the safe and stable operation of power system. According to the actual conditions, the generators and main transformers in Kushitayi Hydroelectric Station are connected by two expand units, and the 220 kV busbar is a switchable single-bus system. The connections of busbars with different voltage level and auxiliary power supply are also introduced herein.