Title :
DC flashover characteristics of the contaminated insulators under low atmospheric pressure
Author :
Xue, Jianru ; Zhang, Rongting ; Zhang, Xiaobing
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
Abstract :
A simple test arrangement for the investigation of DC pollution flashover characteristics of insulators under low pressure and a DC power source meeting the needs of pollution testing are discussed. The DC pollution flashover performances of two types of insulators with various surface salt deposit densities were investigated under pressures of 48-101 kPa. The pollution discharge phenomena and the influence of pressure on the pollution flashover voltages are described. The difference between AC and DC pollution flashover characteristics under low pressure is discussed
Keywords :
environmental testing; flashover; insulation testing; insulators; 48 to 101 kPa; DC flashover characteristics; contaminated insulators; low atmospheric pressure; pollution discharge phenomena; pollution testing; salt deposit densities; test arrangement; Flashover; Insulation; Insulator testing; Leakage current; Pollution; Rectifiers; Sea surface; Surface contamination; Thyristors; Voltage control;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38384
