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摘 要
本说明书论述了电力系统工程中变电站部分电气部分设计的全过程。通过对变电站的主接线设计，站用电接线设计，短路电流计算，电气设备动、热稳定校验，主要电气设备型号及参数的确定，运行方式分析，防雷及过电压保护装置的设计，电气总平面及配电装置断面设计和无功补偿方案设计，较为详细地完成了电力系统中变电站设计。
限于毕业设计的具体要求和设计时间的限制，本毕业设计只对变电站电气一次部分做了较为详细的理论设计，而对其电气二次部分并没有涉及，这有待于在今后的学习和工作中进行研究。
关键词：变电站 短路电流 动稳定 热稳定 过电压保护装置 无功补偿
ABSTRACT
The statement about the 220kv transformer area substation design, discussed some electrical transformer stations design (one part) in power systems engineering of the entire process. Through the main transformer stations wiring design, stations wiring design stations, short circuit current calculations, check electrical equipment moving and thermal stability, set the main electrical equipment models and the parameters, the operating mode, design over-voltage protection and mine devices , design general electric graphic anddistribution devices flood, and without power compensation. Lastly,completed substation design in power system.
Limited to the specific design requirements and design time of constraints, The design only is a part of the electrical transformer stations, and its second part did not involve, which research it in future study and work.
KEY WORDS: Substation, Short circuit currents , Moving stability，
Thermal stability，Over-voltage protection devices，Without power compensation
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