Gas insulated device, gas insulated switchgear, gas insulated bu

Details Gas insulated device, gas insulated switchgear, gas insulated bu Gas insulated device, gas insulated switchgear, gas insulated bu

1995-12-19

1997-11-18

Kincaid, Kristine L.

Electricity: conductors and insulators

With fluids or vacuum

Conduit or cable joints

174 24, 174 28, H01B 906, H02G 1524

Patent

active

056890885

ABSTRACT:
A gas insulated device includes a grounded tank filled with an insulating gas and having a conical insulator spacer securely mounted therein to define an interior space. A through-type electric connector extends through and is supported by the insulated spacer and an electric conductor is electrically connected to the through-type electric conductor by a conductor connector. The conductor connector closest to the insulator spacer is positioned such that electric flux lines exiting from the conductor connector intersect with the surface of the insulator spacer in a region in which an electric field has a strength equal to or less than 70% of the strength of the strongest electric field on the surface of the insulator spacer generated by a lightning impulse applied to the gas insulated device.

REFERENCES:
patent: 3546356 (1970-12-01), Graybill
patent: 3809795 (1974-05-01), Olsen et al.
patent: 4316052 (1982-02-01), Matsuda
patent: 4366340 (1982-12-01), Trinh
patent: 4370511 (1983-01-01), Cookson et al.
patent: 4550219 (1985-10-01), Bolin et al.
patent: 4556755 (1985-12-01), Bolin et al.
patent: 4570202 (1986-02-01), Nishida et al.
patent: 4730085 (1988-03-01), Hama et al.
patent: 5177664 (1993-01-01), Tschiya et al.

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