5、护,对10KV出线装设速断和过电流保护,对10KV电力电容器装设有时限过电流保护和过电压保护。该变电所为小型化变电所,高压侧和低压侧均采用户外式布置,与其继电保护和二次部分选择一个将测量、控制、保护及运行集为一体的综合自动化装置,其型号为LFP-900型。本变电所采用硅整流的直流操作电源,中央复归能重复动作的信号装置及绝缘监察装置。 一次设备置于高压侧户外,低压侧户外;二次设备集中布置于控制室内。关键词:变电所 继电保护 一次设备 二次设备 32ABSTRACT The substation is lays in county meets blue town,
6、 specially for countryside and with what cable designs villages and towns. It is four circuits out let, they are all three kinds of load. Transformer substation adopts one transformer, and its type is S7-4000/35 type. The circuits leading in the said of 35kV and the outlets of the 10kV s
7、ide all adopt the single bus-bar connection. The side of 35kV adopts SF6-35 type primary cutout. Current mutual inductor adopts LCWD1-35 type, isolate switch selects the GW5-35 type for use. The side of 10kV adopts SF6 primary cut-out its type is ZW1-10 type, isolate sw