Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – With arc-suppression or extinguishing means
Patent
1979-09-10
1981-05-05
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
With arc-suppression or extinguishing means
200147R, H01H 930
Patent
active
042662109
ABSTRACT:
This invention relates to circuit breakers and more particularly to circuit breakers for industrial power circuits with 10,000 amp interrupting capacity and 240 V ratings. This invention provides a novel arc shield arrangement whereby two arc shields are placed in series alignment with a small air gap between the shield. The effect of this new arrangement increases the arc voltage and arc braking distance and yet the air gap is kept small enough to keep the arc within the shielding and away from other components where it can cause damage.
REFERENCES:
patent: 4056798 (1977-11-01), Malick
patent: 4149129 (1979-04-01), Andersen et al.
Ellsworth James P.
Mrenna Stephen A.
Elchik W. A.
Harris George
Hudson, Jr. B.
Moran M. J.
Westinghouse Electric Corp.
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