the motor is a three phase, spuirrel-cage, induction type motor and ,its rated rotary speed is 2850 fpm at 50HZ(3420rpm at 60HZ). The electromagnetic wire taped in by polyimide-F46 composite film and advanced technique enable the stator winding to have an excellent insulating property. The temperature grades of motors are 90°C, 120°C and 150°C. It can be single, double or multiple sections tandemed according to the different requirements or power. The connection of the motor and the pothead may be ?plug in ? or ?tape in? according to the requirements of the customers.