Study on time lag of void discharge in epoxy resin by considering attenuation of X-ray irradiation dose

Author

Hayashi, Mariko ; Takada, Hiroaki ; Kozako, Masahiro ; Hikita, Masayuki ; Nakamura, Shigenari ; Umemura, Tokihiro ; Higashiyama, Masakazu

Author_Institution

Kyushu Inst. of Technol., Fukuoka, Japan

fYear

2011

fDate

6-10 Sept. 2011

Firstpage

405

Lastpage

408

Abstract

It is crucial for proper insulation design of cast resin transformer to consider voids and delamination which might exist in cast molding process and/or under long-term operation because of several surface boundaries between resin and conductor. Should such defects in the insulation system exist, it would lead to reduction of the life of the apparatus. In this report, we investigate X-ray irradiation induced discharge of spherical void in epoxy resin. Physical consideration of the effect of X-ray irradiation on void discharges in epoxy resin was also made. Time lag of void discharges in epoxy resin was also made with attenuation of X-ray irradiation dose considered.

Keywords

X-ray effects; conductors (electric); delamination; discharges (electric); epoxy insulation; moulding; transformer insulation; voids (solid); X-ray irradiation dose; attenuation; cast molding process; cast resin transformer; conductor; delamination; epoxy resin; insulation design; long-term operation; spherical void; surface boundaries; time lag; void discharge; Attenuation; Copper; Discharges (electric); Epoxy resins; Partial discharges; Radiation effects; X-ray irradiation; partial discharge; time lag; void;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on

Conference_Location

Kyoto

Print_ISBN

978-4-88686-074-3

Type

conf

DOI

10.1109/ISEIM.2011.6826355

Filename

6826355