Abstract :
The new Life-Line-A integral-horsepower induction motor is the product of long-range programs of research and development as announced by F. C. Rushing, manager, motor engineering, Westinghouse Electric Corporation. Some of the new features are results of more than 10 years of development, and none stem from short-term, concentrated development programs. All conform to the new suggested National Electrical Manufacturers Association standards which call for smaller motors per horsepower. In addition, there are to be found improvements in insulation, a more efficient and better protected bearing, an improved ventilating system, and quieter operation.