Effects of magnetic field on tracking failure of gamma-ray irradiated polymer insulating materials

Author

Du, B.X. ; Liu, H.J. ; Wang, Xinhui

Author_Institution

Key Lab. of Power Syst. Simulation & Control of Educ. Minist., Tianjin Univ., Tianjin, China

fYear

2010

fDate

4-9 July 2010

Firstpage

1

Lastpage

4

Abstract

This paper describes the effect of magnetic field on tracking failure of gamma-ray irradiated polybutylene naphthalate (PBN), polybutylene terephthalate (PBT) and polyethylene terephthalate (PET). The experiment was carried out by applying a dc pulse voltage under magnetic field. The magnetic flux density (MFD) of the magnetic filed was 495 mT and the direction of E×B was 0, 90 and 270 degrees with respect to the sample surface. The PBN, PBT and PET were irradiated in air up to 100 kGy and then up to 1000 kGy with a dose rate of 10 kGy/h by using a ⁶⁰Co gamma-source. Obtained results revealed that the tracking failure was greatly changed by gamma-ray irradiation and magnetic field.

Keywords

gamma-ray effects; insulating materials; magnetic flux; polymer insulators; gamma-ray irradiated polybutylene naphthalate; gamma-ray irradiated polymer insulating materials; magnetic field; magnetic flux density; polybutylene terephthalate; polyethylene terephthalate; tracking failure; Degradation; Discharges; Insulation life; Magnetic fields; Polymers; Positron emission tomography; Radiation effects; Gamma-ray irradiation; cross-linking; degradation; discharge quantity; magnetic field; tracking failure;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid Dielectrics (ICSD), 2010 10th IEEE International Conference on

Conference_Location

Potsdam

Print_ISBN

978-1-4244-7945-0

Electronic_ISBN

978-1-4244-7943-6

Type

conf

DOI

10.1109/ICSD.2010.5568016

Filename

5568016