H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/331
H01H 33/42 (2006.01) H01H 3/30 (2006.01)
Patent
CA 1038430
QUICK-ACTING MOVABLE OPERATING- COLUMN TRIPPING DEVICE Abstract of the Disclosure 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. Relative fast rotation, for example, between the upstanding rotatable supporting column structure and the lower base-spindle structure is provided by a suitable bearing support provided therebetween, together with a latched biasing structure, which when unlatched, or released, will permit a slight relative degree of rotation, say, for example 8 degrees of rotation, between the upstanding, operating, supporting column structure and the driving base-spindle structure, preferably release occurring by means of a suitable - 1 - electrically-actuated solenoid device for each pole-unit, which, through suitable energization in synchronism with the motor for operating the driving linkage, will effect unlatch- ing or release of the spring-assembly, and thereby permitting a slight resulting relative motion, say of the order of 8 degrees, for example, to occur between the upstanding, rotatable operating support column and the more relatively slowly moving rotatable base-spindle structure, the latter being mechanically linked to the motor-operator of the interrupter. Relatching may occur, thereby effecting a resetting of the latch structure at the end of the tripping opening operation of the breaker, so that the spring assembly will be recharged and the latches reset to result in a unitary structure, operable to effect the closing operation of the associated circuit-interrupter as a unit, or if a serially- related disconnecting switchblade structure is used, closing motion of the latter.
223715
Frink Russell E.
Milianowicz Stanislaw A.
LandOfFree
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