The AC discharge characteristics of composite gaps of tension insulator string in 220 kV line

Author

Jianhua, Zhang ; Yuchen, He

Author_Institution

Xian Power Supply Bureau, China

fYear

1993

fDate

12-17 Sep 1993

Firstpage

251

Lastpage

256

Abstract

The operation by which linemen enter a strong electric field to change damaged insulators (with o resistance) along a tension insulator string in 220 kV lines has the advantage of simple operation and high efficiency. When linemen enter an electric field along the insulator string, it is in the movement condition. The working positions vary with the position of the damaged insulators. It is very important for safe operation to know the discharge characteristics of various composite gaps in this operation. The authors have measured the discharge characteristics of composite gaps and their results are introduced in this paper

Keywords

discharges (electric); electric breakdown; electromagnetic fields; insulation testing; insulators; maintenance engineering; personnel; power overhead lines; power transmission lines; safety; 220 kV; AC discharge characteristics; composite gaps; electric field; linemen; overhead power transmission lines; safety; tension insulator string; Aging; Capacitance-voltage characteristics; Dielectrics and electrical insulation; Electric fields; Helium; Impulse testing; Insulator testing; Power supplies; Power transformer insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Construction and Live Line Maintenance, 1993. Proceedings from ESMO-93., Sixth International Conference on

Conference_Location

Las Vegas, NV

Print_ISBN

0-7803-1340-2

Type

conf

DOI

10.1109/TDCLLM.1993.316243

Filename

316243