Title :
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
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;
Conference_Titel :
Electrical Insulating Materials, 1995. International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-88686-047-8
DOI :
10.1109/ISEIM.1995.496569
