rated voltage: 6kv rated power: from 220kw to 2800kw the base of ylst(yls) series medium-scale vertical type three-phase asynchronous motors is a square shape, which is welded by steel plate, the weight is light, the rigidity is good. the stators of our motors are mounted by outside press method, the windings of the stator are class f insulation, and there are reliable fastness and colligation at each end of the windings. the stator windings are treated with vacuum pressure impregnation (vpi) technology. therefore the motor has excellent insulation, strong mechanical and fine moisture protection. the squirrel cage adopts advanced reliable cast aluminum technology, the bearing is adopted welding technology to raise the rigidity of the bearing and improve the ventilation and cooling effects. the thrust bearing is located on the top of the motor, according to the value of the withstanding axial load, the bearing structure is designed to spherical thrust roller bearing or plan thrust bearing. the bottom bearing is radial ball bearing. the cooling method is natural ventilation cooling or water-air cooling. ylst(yls) series medium-scale vertical type three-phase asynchronous motor are used to drive varies types of water pump equipments.