Electrical Motor Studies / Analysis
Motor Starting Analysis
Starting large motors can cause voltage dips in the motor as well and other disturbances for other electrical equipment. If the voltage drop is significant enough, the motor may stall and life of the motor shortened. Studies are conducted when the motor’s horsepower exceeds 30% of the supply transformers base kVA rating or 10% – 15% if a generator supplies the motor.
Motor starting studies should be performed prior to the ordering of large motors, to ensure that the motor will perform as designed, reach the life expectancy, and not interfere with other electrical distribution equipment.
