Variable speed induction motor with wye-delta switching with reduced drive volt-amp requirement

摘要

A washing machine comprising a laundry receptacle, a variable speed induction motor driving the laundry receptacle at a wash speed and as spin speed, a drive for powering the motor, and a wye-delta switch for connecting the drive and the motor in a wye configuration during the wash cycle or a delta configuration during a spin cycle. A controller controls the speed of the motor and the switch.