Proper specification and installation of induction motors

When selecting a motor, decisions must be made as to characteristics of performance, degree of protection, and maintainability. A minimum suitable motor for the application is chosen, then evaluations of the expense related to increased protection and optional features and performance. After receipt, the motor must be installed and maintained properly to give the long and trouble-free life desired. The authors discuss the factors involved in motor selection, environmental factors, installation and control settings, and commissioning tests.