Partial discharge phenomena with X-ray irradiation

Author

Huang, Xingquan ; Li, Chengrong ; Lin, Guo ; He, Min

Author_Institution

Henan Electr. Power Res. Inst., Zhengzhou, China

Volume

2

fYear

2000

fDate

2000

Firstpage

733

Abstract

The partial discharge phenomena induced by X-ray irradiation were investigated in gas cavities, transformer oil, and oil/paper insulation systems. The characteristics of X-ray induced PD were described and the location of the PD site was determined. With conventional PD measurement techniques, statistical time lag in a cavity could make a dangerous defect undetectable. The application of X-rays can increase the free electron production rate in the cavity and decrease the statistical time lag, resulting in an improved PD sensitivity

Keywords

X-ray effects; flaw detection; impregnated insulation; insulation testing; paper; partial discharge measurement; partial discharges; transformer oil; PD measurement techniques; PD sensitivity; PD site location; X-ray induced PD; X-ray irradiation; defect detection; free electron production rate; gas cavities; oil/paper insulation; partial discharge phenomena; statistical time lag; transformer oil; Delay effects; Dielectrics and electrical insulation; Electrons; Gas insulation; Measurement techniques; Oil insulation; Partial discharges; Power transformer insulation; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on

Conference_Location

Xi´an

Print_ISBN

0-7803-5459-1

Type

conf

DOI

10.1109/ICPADM.2000.876179

Filename

876179