Rotary Phase Converter (Create 3-phase power from a single phase source)

[smithdoor]

The relay turns the start cap off after the motor starts
The potential relay APR5 is adjustable for voltages (130-370Volts)
You find this type of relay use in AC and deep well water pumps
I replace centrifugal switch found in single phase motors
The first drawing below shows a typical single phase motor use a potential relay
Note the start winding is 90° to then main winding this give the motor the direction to turn
For three phase the winding are at 120° The second drawing shown how it is wired for three phase

Dave

Hi Dave,
I quite readily concede to not being an expert in anything, so, when I say that all of the info on potential relays that I have managed to locate on the net, seem to refer to "split phase" power supplies I can comprehend how the relay works. However, I'm in Australia and our 230 volt supply is ONE HOT LINE AND ONE EARTH BOUND NEUTRAL. there is ,L1 or L1 or L1, there is NO L2, so unless I'm missing something fundamental here (if so, I hope you will explain), I cannot see how a potential relay is going to help.
Regards,
Rob.