The properties of thermally stimulated currents in epoxy composites degraded with electrical stress

Author

Park, G.H. ; Jung, I.H. ; Kim, K.J. ; Lee, J.U.

Author_Institution

Dept. of Electr. Eng., Kwangwoon Univ., Seoul, South Korea

Volume

2

fYear

1997

fDate

25 -30 May 1997

Firstpage

825

Abstract

The electrical degradation phenomena of epoxy composites to be used as a molding material for transformers were studied. The electrets were first manufactured by applying high voltages to five kinds of specimens given a mixing rate, and then TSC (Thermally Stimulated Current) values at the temperature range of -16 0-200[°C] were measured from a series of experiments. The behavior of carrier and its origin in epoxy composites were examined, respectively, and various effects of electrical degradation on epoxy composites were also discussed in this study

Keywords

composite insulating materials; electrets; epoxy insulation; insulation testing; life testing; power transformer insulation; power transformer testing; thermally stimulated currents; -16 to 200 degC; electrets; electrical degradation phenomena; epoxy composites; mixing rate; molding material; thermally stimulated currents; transformers; Composite materials; Current measurement; Dielectrics and electrical insulation; Electrets; Manufacturing; Power system reliability; Temperature distribution; Thermal degradation; Thermal stresses; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-2651-2

Type

conf

DOI

10.1109/ICPADM.1997.616564

Filename

616564