Transmission line corona losses under hoar frost conditions

Author

Lahti, K. ; Lahtinen, M. ; Nousiainen, K.

Author_Institution

Tampere Univ. of Technol., Finland

Volume

12

Issue

2

fYear

1997

fDate

4/1/1997 12:00:00 AM

Firstpage

928

Lastpage

933

Abstract

Power transmission line corona losses under hoar frost conditions were studied in the climate room of the high voltage laboratory of Tampere University of Technology, Finland. The measurements were performed using a coaxial measurement arrangement with different bundle and conductor types. The effects of conductor and bundle type, temperature, applied voltage and hoar frost thickness on corona losses were investigated. A two-conductor bundle had corona losses about 2.5...5 times higher than a three-conductor bundle. Relatively thin hoar frosts were used in the tests. Even the thinnest hoar frost resulted in remarkable corona losses and the losses were very sensitive to changes in the hoar frost thickness. The ambient temperature had a strong influence on the measured losses

Keywords

corona; ice; loss measurement; losses; power system measurement; power transmission lines; ambient temperature; coaxial measurement arrangement; hoar frost conditions; hoar frost thicknesses; loss measurements; power transmission line corona losses; Conductors; Corona; Laboratories; Performance evaluation; Power transmission lines; Propagation losses; Temperature sensors; Transmission line measurements; Transmission lines; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.584415

Filename

584415