Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1974-05-08
1978-09-12
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200146R, 200145, H01H 3302
Patent
active
041140036
ABSTRACT:
A quick-acting movable-column tripping device is provided as an optional feature of either circuit-interrupters, supported by upstanding insulating column structures, or, alternatively, in connection with circuit-interrupters having a serially-related disconnecting switchblade, providing a visible open-circuit gap, so that a minimum of time is utilized in a tripping operation of the circuit-interrupter. Otherwise, there would be a considerably-delayed action caused by the normal, or inherent lost-motion provided in the loose linkages, which normally are used to effect operative movement of the movable relatively massive supporting column structure.
The quick-acting, accelerating tripping device of the present invention provides relative fast motion between the upstanding rotatable supporting column structure and a base-spindle device, the latter of which is operatively mechanically linked to the motor-operated mechanism, for example, of the switch structure, which may be relatively slow in operation.
REFERENCES:
patent: 3154656 (1964-10-01), Gussow et al.
patent: 3201551 (1965-08-01), Mercier
patent: 3769477 (1973-10-01), Chabala et al.
patent: 3769478 (1973-10-01), Weston et al.
Frink Russell E.
Milianowicz Stanislaw A.
Crout W. R.
Macon Robert S.
Westinghouse Electric Corp.
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