The new research on air density correction factor [power line external insulation]

Author

Xin-Sheng, Wang ; Chong-Hui, Lu

Author_Institution

Dept. of Electr. Eng., Xi´´an Jiaotong Univ., Shaanxi, China

fYear

1991

fDate

8-12 Jul 1991

Firstpage

546

Abstract

The authors summarize the results of joint research into the influence of altitude and atmospheric conditions on the disruptive discharge of external insulation of power transmission apparatus. The same tests on the same configuration and with the same procedures were performed at different altitudes (23 m, 506 m, 1040 m, 1890 m, 2300 m, and 3650 m above sea level). It is shown that the flashover voltages of external insulation of electrical facilities decrease with increase of altitude and decrease of air density. The correction factors of relative air density obtained from test results are nearly equal to the present correction factors in the IEC 60-1 standards and GB311-83 Chinese standards

Keywords

flashover; insulation; insulators; power overhead lines; 23 to 3650 m; GB311-83 Chinese standards; IEC 60-1 standards; air density correction factor; altitude; atmospheric conditions; disruptive discharge; electrical facilities; external insulation; flashover voltages; Dielectrics and electrical insulation; Flashover; Government; Humidity; IEC standards; Insulation testing; Laboratories; Performance evaluation; Power transmission; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on

Conference_Location

Tokyo

Print_ISBN

0-87942-568-7

Type

conf

DOI

10.1109/ICPADM.1991.172118

Filename

172118