You lost some motor life when you reclosed in on a coasting motor. Severe mechanical shock can occur to the motor and shaft when the restart happens. Use an undervoltage relay with a timer to block timing until at least 10 seconds after the trip. It is best to wait until the motor is fully...
The delta primary of the 45 KVA transfomer will connect directly to the 480V supply. The secondary 120/208V wye will require grounding to a ground rod, structural steel, and/or metal water pipe per the NEC, and be bonded to the utility grounding conductor. The 480V supply must be a 4-wire...
