摘要:本篇毕业设计主要是对某坝后式电站电气部分的设计，包括主接线方案的设计，主要设备选择，短路电流计算，电气一次设备的选择计算。通过对水电站的主接线设计，主接线方案论证，短路电流计算，电气设备动、主要电气设备型号及参数的确定，较为细致地完成电力系统中水电站设计。

　　　限于毕业设计的具体要求和设计时间的限制，本毕业设计主要完成了对坝后式水电站电气主接线设计及论证，短路电流计算，电气一次设备的选择计算，电气设备动、热稳定校验、电气设备型号及参数的确定做了较为详细的理论设计。

关键词：电气主接线；短路电流；电气一次设备；

ABSTRACT:This graduation project mainly is to some Bahou-river Bahou-river hydroelectric power station electricity part design, including host wiring plan design, main equipment choice, short-circuit current computation, an electrical equipment choice computation Through the adding water power plant main wiring design, the main wiring project concept demonstration, the short-circuit current computation, the electrical equipment moves, the heat-stable verification, the main electrical equipment model and the parameter determination, completes in carefully the electrical power system the Bahou-river hydroelectric power station design.

　　　Is restricted in the graduation project the specific request and the design time limit, this graduation project has mainly completed the adding water power plant electricity host wiring design and the proof, the short-circuit current computation, an electrical equipment choice computation, the electrical equipment moves, the heat-stable verification, the electrical equipment model and the parameter has indeed made to order the more detailed theoretical design.

Keywords: Electrical main wiring; Short-circuit current; An electrical equipment