Gas-insulated switchgear with improved insulation joint

Details Gas-insulated switchgear with improved insulation joint Gas-insulated switchgear with improved insulation joint

1995-08-23

1997-09-23

Scott, J. R.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Air-current blowout

218 68, 218 3, 361604, H01H 3300, H02B 13045

Patent

active

056707673

ABSTRACT:
A gas-insulated switchgear in which a washer 5 is electrically connected with a tank 1 by a conductive material 12 having a high resistivity at a position where the tank 1 and a tank 2 are joined through an insulator 13 of the gas-insulated switchgear. In view of the structure of the switchgear, the reliability is improved, the structure is simplified, the number of parts is decreased, and the profitability is improved because a steep surge is not theoretically induced for a steep surge induced when turning on/off each unit at an electrically insulated position of a joint between tanks through an insulator of a gas-insulated switchgear for an SF.sub.6 gas-insulated closed-type station.

REFERENCES:
patent: 3767976 (1973-10-01), Graybill et al.
patent: 3959577 (1976-05-01), Frink
patent: 4277746 (1981-07-01), Abe et al.
patent: 4468716 (1984-08-01), Kamata et al.
Patent Abstracts of Japan, Unexamined Applications, Section : E, Sect. No. 881, vol. 14, No.51, p. 146 (19900130): source for enclosed one page document including abstract for JP 01-278210.
14, No.51, p. 146 (19900130) :source for the above mentioned Japio abstract for JP 01-278210.

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