Title :
Studies on influencing factors to the ageing of porcelain insulators under DC stresses
Author :
Jian Chao Zheng ; Qing, Yu ; Xing, Chen
Author_Institution :
Electr. Power Res. Inst., Beijing, China
Abstract :
Results are presented of the aging performance of HVDC line porcelain insulators and related influential factors such as body current and electric-field intensity. The residual dielectric strengths of porcelain materials with different aging times have been measured, and the energy spectrum of aged insulators has been examined. The influence of space charge on field distribution is analyzed
Keywords :
DC transmission networks; ageing; insulators; DC stresses; HVDC line; ageing; body current; electric-field intensity; energy spectrum; field distribution; porcelain insulators; residual dielectric strengths; space charge; Aging; Dielectrics and electrical insulation; Electric breakdown; Insulator testing; Life testing; Ovens; Porcelain; Stress; Temperature; Voltage;
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.1988.38320
