住宅小区10kV供电系统设计说明

摘要本次所设计的课题是住宅小区 10kV 供电系统的初步设计，该供电系统是有两个配电室组成的住宅小区专用的降压变电系统，具有 10kV 和 380V 两个电压等级，10kV 一侧接与 110kV 变电站的 10kV 母线，380V 主要用于小区用户的用电。本次所设计的供电系统是非常重要的，假如系统出故障了，将影响整个住宅小区的供电，所以可靠性要求很高。所以这次设计必须考虑到供电系统的安全性、可靠性与经济性。本说明书通过对变电站的主接线设计，短路电流计算，主要电气设备型号和参数的确定，电气设备的动热稳定校验，备用电源的自动投入设计，无功补偿设计，防雷和过电压保护装置的设计较为详细地完成了电力系统中变电站的设计。关键词：配电室；短路计算；无功补偿；备用电源投入AbstractThe design of this residential area is the subject of the preliminary design of 10kV power supply system, the power distribution system, there are two rooms and an opening and closing a residential area consisting of a dedicated step-down transformer system with 10kV and 380V 2 a voltage, 10kV and 110kV substation side of the access bus 10kV, 380V electricity mainly for residential users. The power supply system designed is very important, if the system is broken, the entire residential area will affect the power supply, so the high reliability requirements. Therefore, the design must take into account the power system security, reliability and economy. This manual wiring through the main substation design, short circuit current calculation, the main electrical equipment to determine the model and parameters, electrical equipment, the dynamic thermal stability test, automatic backup power supply design, reactive power compensation design, lightning protection and over voltage protection Device completed in detail the design of substations in power system.Keywords: Distributionroom;Short-circuit calculation;Reactive power compensation; Backup Power Input目 录1.绪论........