1主电机的选型及运行状况老新电排站建于70年代中期，所有机电设备都由国家统一分配供应。因此，该站的4台主电机及主水泵来自于4个生产厂家，而各生产厂家的制造工艺和技术指标也各不相同。例如3号主电机型号为DTLZ15／31－24，由上海电机厂1976年生产。根据厂家提供的技术资 A main motor selection and operating conditions Old New Power Station was built in the mid 70s, all the mechanical and electrical equipment are supplied by the state unified distribution. Therefore, the station of the four main motor and the main pump from four manufacturers, and the manufacturer’s manufacturing process and technical indicators are also different. For example, No. 3 main motor model DTLZ15 / 31-24, produced by the Shanghai Electric Factory in 1976. According to the technical information provided by the manufacturer