Electricity: conductors and insulators – With fluids or vacuum – With fluid-condition responsive and/or indicating means
Patent
1979-03-12
1982-02-16
Askin, Laramie E.
Electricity: conductors and insulators
With fluids or vacuum
With fluid-condition responsive and/or indicating means
137 68R, 174 22C, 174 28, 220 89A, H01B 1726, H02B 1302
Patent
active
043160514
ABSTRACT:
A partition insulator is disclosed having a seating in at least one insulator holder. A specific predetermined rupture behavior is provided for the partition insulator as a result of outside forces acting on the insulator at a specific quantity and direction such as, for example, gas pressure. A corresponding support (or gripping or solid gripping) of the partition insulator is provided whereby at least on the insulator, on the insulator holder or between these two parts, bearing points (or bearings) are arranged in a suitably distributed manner. The gripping of the partition insulator is accomplished herewith by the insulator holder alone or by both the insulator holder and a fastening ring which holds the partition insulator together by both threaded bolts and nuts. The partition insulator is preferably used as a pressure relief device in pressurized gas-insulated high-voltage switchgears having a metal switchgear casing. Mutually gas-tight individual compartments of the switchgear casing are divided by pressure relief devices whereby, in the most simple manner, a pressure-oriented graduation of the individual compartments may be achieved.
REFERENCES:
patent: 564812 (1896-07-01), Winne
patent: 1584523 (1926-05-01), Egbert
patent: 1959822 (1934-05-01), Greve
patent: 3331911 (1967-07-01), Whitehead
patent: 3652778 (1972-03-01), Sakai
patent: 3906149 (1975-09-01), Hashoff et al.
patent: 4096345 (1978-06-01), Kemeny
Krieter Georg-Heinz
Mauthe Gerhard
Askin Laramie E.
BBC Brown Boveri & Company Ltd.
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