Title :
Estimation of lifetime expectancies of motors
Author :
Brancato, Emanuel L.
Abstract :
Methods for evaluating lifetime expectations are discussed. Factors that affect the life of bearings and brushes and of wire coil insulation are identified. Thermal life of insulation and methods for accelerated testing are discussed. Examples are included to assist in the calculation of such factors as motor temperature-rise conditions and the benefits to be realized through upgrading the thermal classification of the motor insulation system.<>
Keywords :
electric motors; insulation testing; life testing; machine insulation; machine testing; accelerated testing; bearings; brushes; insulation system; insulation thermal life; lifetime expectations; motors; temperature-rise conditions; thermal classification; wire coil insulation; Brushes; Cable insulation; Coils; DC motors; Dielectrics and electrical insulation; Fatigue; Life estimation; Lifetime estimation; Temperature; Thermal factors;
Journal_Title :
Electrical Insulation Magazine, IEEE
