A decorative fountain at a shopping center has a 3 HP, 3 Phase, 208-240 volt pump.
The control box lists 10 amps for the motor.
The "factory test" sticker shows L1 @ 6.3amps and L2 & L3 @ 5.6 amps.

Since only single phase power is available, a Phase Converter (rotary) was installed.

The converter output voltages are all about equal (230-235 volts) but the pump draws 13 amps on L1 & L2 and 7 amps on L3, which is the "manufactured" phase.

Pump company says they "don't recommend" phase converters and tweaking of the vonverter capacitors may be necessary. Phase converter company says that since voltages are good, something may be wrong with the pump. They spoke to each other for me and decided that I should try adding a 22 mFD capacitor to help.

I think the darn thing should work as is.

BTW, changing the pump is not an option.

Any thoughts?

Thanks!

[This message has been edited by Redsy (edited 07-14-2006).]