The old process of building rotary phase converters was agonizing to say the least. One method was to machine down the motor armature so your rotary converter motor could start with just running capacitors. Although this method worked there were numerous disadvantages. Another method was to use motor starting capacitors, relay, or timer and a contactor to start your rotary converter motor. Although this method may work fine you have to deal with a fairly complicated wiring circuit as well as the expense for those many items. PhazPaks New “I” Model Solid State Converters changes all of that. Now it is simple and inexpensive to build your own rotary converter. See instructions for cautions and limitations. Run capacitors not included.
HP 7-1/2 at 1725 RPM
HP 5 at 3450 RPM