毕业论文（设计） 某机械厂降压变电所电气设计 系 部 自动控制工程系 专 业 名 称 发电厂及电力系统 班 级 电 力 1101 2025 年 10 月 18 日摘要 为保障本机械厂生产安全进行，保证电能合理分配、输送，灵活改变运行方式，特进行本次模拟设计。 本设计主要阐述了对机械厂总降压变电所的电气设计方案。在设计中进行了对工厂负荷的统计计算；变电所位置与型式的选择；变电所主变压器及主接线方案的选择；短路电流的计算；变电所一次设备的选择校验；变电所进出线与邻近单位联络线的选择；降压变电所防雷与接地装置的设计等。关键词:工厂供电；变电所；无功功率补偿；变压器；短路电流计算；一次设备；避雷器AbstractTo protect the safety of industrial production, pledge to ensure reasonable distribution of electric energy, transmission, flexible operation mode changes. Special for this design.Elaborated on the design of the main mechanical plant a total step-down substation electrical . Carried out in the design of the statistical calculation of the load on the plant; substation location and type of choice; substation main transformer and main line scheme of choice; short-circuit current calculation; substation equipment selection of a check; substation into the outlet and adjacent units of the contact line of choice; step-down substation lightning protection and grounding equipment design.Keywords: Power plants; substations;reactive compensation;transformer;short circuit current calculation; a device; surge arresters目录1 机械厂原始资料....................................................11.1 机械厂设计要求................................................11.2 设计依据......................................................11.2.1 工厂总平面图..............................................11.2.2 工厂负荷情况..............................................11.2.3 供电电源情况..............................................21.2.4 电费制度..................................................21.2.5 ...
