Y, YKS and YKK series are high voltage squirrel-cage asynchronous motors which can apply to drive various ventilators, compressors, water pumps, crushers, chipping machines, transporting machines and other equipments. YR, YRKS and YRKK series are high voltage winding asynchronous motors, and this series of motors can provide large starting torque at low starting currents, and the speed can be adjusted within a certain scope.