Title :
A Method of Evaluating Insulation Systems In Motors [includes discussion]
Author :
Leape, C.B. ; McDonald, J. ; Gibson, G.P.
Author_Institution :
ASSOCIATE MEMBER AIEE, Westtinghouse Electric Corporation, East Pittsburgh, Pa.
Abstract :
This paper gives a method of functionally evaluating insulation systems in 5-horsepower 440-volt 3-phase squirrel-cage motors. By this method it is possible to compare various insulating systems with acceptable standards in terms of the years of expected life at any selected operating temperature. A motor test station is described and a procedure is given for a test cycle involving periods of humidification and heat run. Various data on insulation systems under test are given as an example of what might be expected from this method.
Keywords :
Aging; Associate members; Cable insulation; Electric variables measurement; Insulation testing; Life estimation; Life testing; Standardization; System testing; Temperature measurement;
Journal_Title :
Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers
DOI :
10.1109/AIEEPAS.1953.4498703
