Phenomena and mechanism of electrical tree in DGEBA/MDA/GN system

Author

An, Hyun-Soo ; Song, Young-Wook ; Shim, Mi-Ja ; Kim, Sang-Wook

Author_Institution

Dept. of Chem. Eng., Seoul City Univ., South Korea

Volume

1

fYear

1997

Firstpage

451

Abstract

Electrical tree, one of the main cause of breakdown in insulating materials, was affected by temperature, applied voltage, frequency, etc. In this study, the toughness of epoxy resin system was improved as GN was introduced to DGEBA/MDA system and the phenomena and mechanism of electrical tree in DGEBA/MDA/GN system under various voltages and temperatures were investigated. As voltages were applied to epoxy resin system, the growth rate of electrical tree showed the sigmoid shape. The growth rate of electrical tree increased with the increment of applied voltages. As temperature increased, the growth rate of electrical tree increased and the phenomena of tree mere more complex

Keywords

epoxy insulation; trees (electrical); DGEBA/MDA/GN system; breakdown; electrical tree; epoxy resin; insulating material; Breakdown voltage; Cities and towns; Conducting materials; Dielectrics and electrical insulation; Epoxy resins; Frequency; Needles; Power transformer insulation; Temperature; Trees - insulation;

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.1997.617633

Filename

617633