The steep-front, short-duration pulse characteristics of distribution insulators with wood

Author

Grzybowski, S. ; Jacob, P.B.

Author_Institution

Dept. of Electr. Eng., Mississippi State Univ., MS, USA

Volume

5

Issue

3

fYear

1990

fDate

7/1/1990 12:00:00 AM

Firstpage

1608

Lastpage

1616

Abstract

Results are presented of a study of the flashover voltage characteristics under steep-front, short-duration, pulse application to single-distribution-class insulators, wood crossarms, and certain combinations of insulators and wood crossarms under dry and wet conditions with both positive and negative polarities. A discussion of the results follows the data, and a comparison with CFO (critical flashover) voltage for lightning impulses is given. The role of wood in composite insulation for steep-front is shown

Keywords

composite insulating materials; flashover; insulation testing; insulators; poles and towers; surges; wood; composite insulation; distribution insulators; dry conditions; flashover voltage; lightning impulses; negative polarity; overhead powerline; positive polarity; short-duration pulse characteristics; steep front pulses; wet conditions; wood; wood crossarms; Circuit testing; Dielectrics and electrical insulation; Flashover; Lightning; Power system transients; Pulse generation; Pulse power systems; Pulse shaping methods; Shape; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.58007

Filename

58007