Practical Cases of Electric Field Distribution Along Dry and Clean Nonceramic Insulators of High-Voltage Power Lines

Author

Que, Weiguo ; Sebo, Stephen A. ; Hill, Robert J.

Volume

22

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1070

Lastpage

1078

Abstract

High electric field strength may cause problems, such as corona and deterioration, on nonceramic insulators. Therefore, control of the electric field strength (E) in the vicinity of such insulators is an important aspect for their design. This paper discusses insulator computation models and their applications to 34.5 kV and 765 kV nonceramic insulators. Possible model simplifications are reviewed and discussed. Various 765 kV insulator designs and tower types are covered; the magnitude and distribution of E are reviewed. Verification tests are also described

Keywords

corona; electric fields; insulator testing; poles and towers; power overhead lines; 34.5 kV; 765 kV; corona; dry-clean nonceramic insulators; electric field distribution; electric field strength; high-voltage power lines; towers; Aging; Computational modeling; Corona; Dielectrics and electrical insulation; Insulator testing; Plastic insulation; Poles and towers; Surface discharges; Surface fitting; Voltage; Electric field and voltage distributions; insulator model setup; nonceramic insulators; verification tests;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.893190

Filename

4141152