customers complaining of a current imbalance on his motor. Voltage is fine. Open delta transformer bank. The motor has been rebuilt. Currently the motor is tripping out on over-current. When the leads are changed on the motor, the high current leg always stays with incoming power, indicating that the problem is not load related. Service appears to be fine, voltage only drops 2 volts when load is applied. Are open delta banks notorious for load imbalance on motors? Any help would be appreciated