Title :
Discharge energy and dielectric breakdown of gamma-ray irradiated polybutylene naphthalate
Author :
Du, B.X. ; Zhang, X.J.
Author_Institution :
Coll. of Electr. Autom., Tianjin Univ., China
Abstract :
This paper presents results obtained from research carried out with the purpose of dielectric breakdown of gamma ray irradiated polybutylene naphthalate under low pressure conditions. The total dose of gamma-ray irradiation effects on the discharge energy have been studied. A Gaussian wavelet analysis of discharge currents is applied to show these discharge energy levels. The changes of discharge energy are discussed with decreasing the atmospheric pressure in the range from 100 kPa to 1 kPa and increasing the frequencies of applied pulse voltage in the range from 100 Hz to 200 Hz. It is found that the erosion depth decreased with decreasing the atmospheric pressure and increasing the total dose of gamma-ray irradiation. The discharge energy decreased with increasing the total dose of gamma-ray irradiation and increased with decreasing the atmospheric pressure.
Keywords :
dielectric materials; discharges (electric); electric breakdown; gamma-ray effects; insulating materials; polymers; 100 to 1 kPa; 100 to 200 Hz; Gaussian wavelet analysis; dielectric breakdown; discharge currents; discharge energy; gamma-ray irradiated polybutylene naphthalate; Dielectric breakdown; Dielectrics and electrical insulation; Electrodes; Plastic insulation; Polymers; Power generation; Power system reliability; Testing; Voltage; Wavelet analysis;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350588
