Title :
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
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;
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
DOI :
10.1109/ICPADM.2000.876179
