Electricity: conductors and insulators – With fluids or vacuum – With fluid maintenance or conditioning means
Patent
1986-10-01
1987-06-09
Askin, Laramie E.
Electricity: conductors and insulators
With fluids or vacuum
With fluid maintenance or conditioning means
174 28, 174 99B, H02G 506
Patent
active
046721509
ABSTRACT:
The invention relates to a conductor supporting apparatus for gas insulated equipment in which a high voltage conductor which is arranged in a grounded tank is insulated and supported by an insulating spacer having attaching metal fittings at both end portios. In the apparatus of the invention, a cylindrical insulating barrier having a flange portion on the side of the free end so as to be substantially perpendicular to the surface of the insulating spacer is attached by use of the attaching metal fitting of the insulating spacer on at least the side of the grounded tank. The insulating spacer is surrounded by this insulating barrier through a space. By use of the insulating barrier, the approach of conductive foreign matters to the insulating spacer can be prevented and the high dielectric strength can be maintained.
REFERENCES:
Crucius, M., et al., "Long Duration Tests on Epoxy Insulators in SF.sub.6 Gas", CIGRE Report 15-07, 1978 Session, Aug. 30 to Sep. 7, 9 pages.
Endo Fumihiro
Ishikawa Toshio
Yamagiwa Tokio
Askin Laramie E.
Hitachi , Ltd.
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