Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1974-09-16
1976-07-20
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200150G, H01H 3388
Patent
active
039708110
ABSTRACT:
The insulation nozzle of a puffer type breaker has flexible contact fingers disposed along the walls of the nozzle upstream of the gas flow path through the nozzle. The flexible contact fingers engage a hollow tubular stationary contact which extends through the nozzle orifice when the interrupter is closed. A central arcing contact is fixed to the flexible contact fingers within the nozzle and projects into the interior of the stationary tubular contact when the contacts are closed. A plurality of main finger contacts are connected to the stationary contact, and slidably engage an outer main movable contact sleeve fixed to the movable arcing contact and the insulation nozzle. The movable contact sleeve forms a bridging connection between the main terminals of the interrupter when the interrupter is closed. The main bridging contacts disengage before the interior contact fingers within the nozzle disengage the stationary contact tube so that the outer fingers do not interrupt power currents.
REFERENCES:
patent: 3639712 (1972-02-01), Balmat et al.
patent: 3665134 (1972-05-01), Fischer
patent: 3679851 (1972-07-01), Latour et al.
patent: 3786215 (1974-01-01), Mauthe
patent: 3839613 (1974-10-01), Tsubaki et al.
I-T-E Imperial Corporation
Macon Robert S.
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