Title :
Reliability of resins for molded transformers
Author :
Takeuchi, Ryozo ; Fukushi, Keiji ; Kubo, Hirofumi
Author_Institution :
Hitachi Ltd., Tokyo, Japan
fDate :
12/1/1991 12:00:00 AM
Abstract :
Two kinds of resins for molded transformers have been developed and their electric and mechanical characteristics were evaluated at various temperatures. Each resin has good characteristics below the glass transition temperature. During the past 12 years, 20000 molded transformers using these resins have been produced and operated without any trouble
Keywords :
organic insulating materials; polymers; reliability; transformer insulation; electrical characteristics; glass transition temperature; mechanical characteristics; molded transformers; resins; Coils; Dielectric losses; Glass; Insulation testing; Oil insulation; Petroleum; Power transformer insulation; Resins; Stress; Temperature;
Journal_Title :
Electrical Insulation, IEEE Transactions on
