Yes, motor voltages were taken while running. Amps and volts were taken with a recently calibrated power meter.
Yes, we are using the open delta two transformer system. This is the only place we have encountered trouble. When using three transformers, true 3 phase, the problem goes away. This...
I have encountered problems with a 5 HP 230/3/60 volt pump service. The motor is a 230/460 (dual wound) motor.
The problem does not ocur when using real 3 phase power. The amp draw is normal and balanced. FLA is 14.7A, max reading is 12.8A
On a wild leg service the pump draws almost 25%...
