Title :
Influence of humidity on flashover in air in the presence of dielectric surfaces
Author :
Zheng, J.C. ; Wang, Zhen ; Liu, Y.W.
Author_Institution :
Electr. Power Res. Inst., China
Abstract :
The humidity effect on flashover in air in the presence of a dielectric surface was studied on insulator specimens having typical electrode geometries in a humidity chamber. The influence of humidity-dependent change in electric field distribution on the inception and flashover voltage was investigated by field simulation and tests. The concept of indirect effect of atmospheric parameters is proposed and used to explain the anomalous behaviour of insulators in respect of humidity influence.<>
Keywords :
atmospheric humidity; electric breakdown of gases; electric fields; electrodes; flashover; gaseous insulation; insulation testing; insulators; atmospheric parameters; breakdown; dielectric surfaces; electric field distribution; electrode geometries; field simulation; field tests; flashover inception; flashover voltage; humidity; indirect effect; insulators; Atmospheric modeling; Dielectrics and electrical insulation; Electrodes; Flashover; Geometry; Humidity; Insulator testing; Lightning; Temperature dependence; Voltage;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.320677
