On Monday, December 30, 2019 at 8:08:36 AM UTC-5, wrote:
3-phase motor on a washing machine? Must be an industrial device, not hardly an over-the-counter consumer device.

With that in mind, you will need a simple 3-phase VFD, as a single device.. They may be had with little fuss and at a reasonable cost. Such as:

https://www.automationdirect.com/adc...CZ6kQAvD_B wE

Only one of many options.

Do check that the motor is well-and-truly 3-phase, however.


So called 'High efficiency' washers have them, and so do some window Air conditioners. They eliminate the need for a fancy gearbox and they can reverse direction easily. A smaller motor can be used in some cases. Variable speed is used to reduce energy use on smaller loads.