Research of Flashover of Power Line Insulators Due to High-Voltage Pulses With Power ON and Power OFF

Author

Parfenov, Yury V. ; Zdoukhov, Leonid N. ; Shurupov, A.V. ; Kozlov, A.V.

Author_Institution

Joint Inst. for High Temps., Moscow, Russia

Volume

55

Issue

3

fYear

2013

fDate

Jun-13

Firstpage

467

Lastpage

474

Abstract

This paper includes the results of an investigation of high-voltage pulse effects on insulators of a 10-kV power line. Experiments have been performed by means of equipment that simulates the simultaneous effect of a pulse disturbance and a power line operating voltage. Critical levels of insulator flashover have been determined. These levels are dependent on the pulse disturbance duration, and a number of other effects. The electric characteristics of insulators degrade when high-voltage pulses are injected on an insulator with power ON. As a result, some insulators have been destroyed. The possible reason of destruction is the presence of latent defects.

Keywords

flashover; insulators; high-voltage pulse effect; insulator flashover; power line insulator; power line operating voltage; power off; power on; pulse disturbance; voltage 10 kV; Degradation; Flashover; Insulators; Joints; Surface cleaning; Surface contamination; Voltage measurement; Critical levels of flashover voltage; degradation of insulator parameters; high-voltage pulses; power line insulators; power line operating voltage; repeated flashovers;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2012.2236094

Filename

6419802