Good performing induction motor at factory test- What factors affect to poor performance at the operating site

This paper discusses the difference in performance of an induction motor while tested at manufacturing factory test stand and customer site. The induction motor is the prime mover in any process or chemical or power generating industries. There are several factors affecting the performance of the induction motor. They are type of driven equipment, installed conditions such as ambient temperature, humidity, coupling and its alignment, power supply and its quality and maintenance program. Also initial selection of motor type such as open, totally enclosed, air cooled or water cooled, power requirement and type of the bearings also have influence in motor performance.