Corona loss characteristics of contaminated conductors in fair weather

In the present work, the results of a laboratory measurement project of corona losses on contaminated conductors in fair weather are presented. The measurements carried out furnish new information, which is not available in the literature. The research work performed in the past has dealt with corona losses under rain and snow, and some semiempirical formulae have been proposed, which do not approach adequately the corona losses in the case of contamination in fair weather. A calculation formula for the case of contaminated conductors in fair weather has been proposed in this work on the basis of the performed research, and the corresponding fitting coefficients have been calculated. An appropriate mathematical tool for the predetermination of corona losses is hence available for this case. (C) 2001 Elsevier Science B.V. All rights reserved.