论文信息 - Effect of dust on discharges in rod‐rod air gaps in the presence of parallel insulating spacer

Effect of dust on discharges in rod‐rod air gaps in the presence of parallel insulating spacer

Breakdown and corona are investigated experimentally in clean and dust-polluted rod-rod air gaps in the presence of clean and dust polluted insulating spacer placed parallel to the electrodes. Gap length and spacer distances were varied and DC voltages of both polarities were used to investigate breakdown voltage and pulsative corona characteristics. The results show that the presence of spacer tends to considerably influence the effects of dust pollution on the breakdown and corona characteristics. Possible mechanisms, which control these variations, are discussed.

A. A. Al-Arainy | M. I. Qureshi | Nazar H. Malik

[1] A. Modinos,et al. Charge exchange processes at the interface of a metal oxide with a dielectric liquid , 1987, 1987 Ninth International Conference on Conduction and Breakdown in Dielectric Liquids.

[2] J. Halbritter,et al. On Contamination on Electrode Surfaces and Electric Field Limitations , 1985, IEEE Transactions on Electrical Insulation.

[3] Mazen Abdel-Salam,et al. Discharges in air from point electrodes in the presence of dielectric plates-experimental results , 1992 .

[4] M. I. Qureshi,et al. Performance of rod-rod gaps in the presence of dust particles under lightning impulses , 1991 .

[5] Ahmed Boubakeur,et al. Influence of barriers on the lightning and switching impulse strength of mean air gaps in point/plane arrangements , 1991 .

[6] M. Abdel-Salam,et al. Discharges in air from point electrodes in the presence of dielectric plates-theoretical analysis , 1992 .

[7] A. A. Al-Arainy. Influence of dust particles on dc discharges in symmetrical air gaps , 2007 .

[8] Ramanujam Sarathi,et al. Effect of barrier in short air gaps under oscillatory impulse voltages , 1997, IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena.