Method and means for trapping particles in enclosed high voltage

Details Method and means for trapping particles in enclosed high voltage Method and means for trapping particles in enclosed high voltage

1975-11-28

1977-06-14

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With fluid maintenance or conditioning means

174 16B, 174 21C, 174 28, H01B 904

Patent

active

040298922

ABSTRACT:
Enclosed gas-insulated electric bus apparatus especially designed for use in horizontal disposition with high unidirectional system voltage includes deep trench-like electrostatic particle traps and inclined ramps leading to the traps. A method for entrapping such particles prior to the application of system voltage comprises preliminary imposition of an alternating conditioning voltage of relatively low magnitude from a low power source, preferably in steps of increasing magnitude.

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Bortnik, I. M.; Cooke, C. M., Electrical Breakdown and the Similarity in SF.sub.6 at Extra High Voltages, IEEE Winter Meeting, Power Engineering Society, Jan./Feb. 1972.
Diessner, A.; Trump, J. C., Free Conducting Particles in a Coaxial Compresed-Gas-Insulated System, IEEE Transactions on Pas, vol. 8, Nov./Dec. 1970, pp. 1970-1978.
Cronin, J. C., Perry, E., Optimization of Insulators for Gas Insulated Systems, IEEE Trans., Pas, vol. Pas-2, No. 2, Mars./Apr. 1973, pp. 558-564.

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