The influence of dust particles on the DC breakdown voltage of rod-rod air gaps

Author

Al-Arainy, Abdulrhman A.

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

fYear

1995

fDate

17-20 Sep 1995

Firstpage

303

Lastpage

306

Abstract

The rod-rod gap has been adopted by the IEC as a mean of measurement of direct voltages in HVDC transmission. However, its performance, in areas where dust suspension in air is a common meteorological characteristic, is not known. This paper investigates the influence of dust particles on the positive and negative DC breakdown voltage of rod-rod air gap clearances for voltages up to ~ 250 kV. It is shown that dust particles can have a serious effect on direct voltage breakdown characteristics of such gaps. Some prebreakdown discharge studies related to these effects are also presented

Keywords

HVDC power transmission; air gaps; air pollution; dust; electric breakdown; high-voltage techniques; voltage measurement; 250 kV; DC breakdown voltage; HVDC transmission; direct voltage breakdown characteristics; direct voltage measurement; dust particles; prebreakdown discharge studies; rod-rod air gaps; Air gaps; Air pollution; Breakdown voltage; Corona; Educational institutions; Electrodes; Frequency; Pollution measurement; Pulse measurements; Storms;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 1995. International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-88686-047-8

Type

conf

DOI

10.1109/ISEIM.1995.496569

Filename

496569