Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1979-02-28
1981-12-01
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200147A, 200148A, H01H 3388
Patent
active
043038140
ABSTRACT:
A power switch in which an arc is produceable in an arc area between electrodes which are moved apart upon opening the switch comprises a fixed electrode forming one electrode for the power switch and a movable electrode forming the other electrode of the power switch movable into and out of contact with the fixed electrode. A space is produced between the fixed and movable electrodes which forms an annular arc area. A magnetic field producing coil is positioned annularly about the arc area and is energized to form a magnetic field when the movable electrode is disengaged from the fixed electrode to produce a rotation of the arc formed between the two electrodes in the annular arc area. A driving device is connected to the movable electrode for moving it away from the fixed electrode and the movable electrode includes a piston portion which is movable into a compression chamber. The compression chamber includes at least one bore directed toward the annular arc area. An arc quenching gas is contained within the compression chamber and displaced through the opening when the movable contact is moved away from the fixed contact to blow the gas transversely across an arc produced in the annular arc area.
REFERENCES:
patent: 3014108 (1961-12-01), Cobine et al.
patent: 3014109 (1961-12-01), Burger
patent: 3082308 (1963-03-01), Baker
patent: 3991292 (1976-11-01), Perkins
patent: 4079219 (1978-03-01), Weston
patent: 4082932 (1978-04-01), Rozier et al.
LICENTIA Patent-Verwaltungs-G.m.b.H.
Macon Robert S.
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