YD series three phase asynchronous motors with changeable pole and multiple speed is the subseries of Y series motors. This series of motor change the speed by changing the connection of stator winding and the pole of motor. The motor has a character that it can change the power and speed with the difference of loading, so that reasonably match with the loading, which has a great significant on simplifying changing speed system and energy conservation. This motor can be applied to different kinds of machine tool, metallurgy equipment, mining machinery, textile machinery, fan and water pump, simplifying changing speed system, to save energy.
YD series of motor has characters, like small volume, light weight, good performance, reliable on running, the simple control system etc. And the voltage, frequency, mounting dimensions and overall dimensions, insulting class, protection class, cooling method are the same as Y series (IP44), mounting dimensions conforms with IEC standard