Current interrupter electrode configuration

Details Current interrupter electrode configuration Current interrupter electrode configuration

1977-05-27

1979-10-16

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, H01H 3366

Patent

active

041714741

ABSTRACT:
A vacuum type current interrupter is provided having a low mass movable electrode which can be moved into electrical contact with a stationary electrode for carrying large currents associated with power lines. A third electrode is positioned in the vacuum envelope in opposing relation to the stationary electrode and adjacent the movable electrode. When the stationary and movable electrodes are separated an arc will appear between their contact surfaces. The third electrode is conductively connected to the movable electrode so that the arc will spread from the latter to the relatively larger surface of the third electrode, to reduce local overheating of the electrodes during arcing.

REFERENCES:
patent: 2922926 (1960-01-01), Fehling
patent: 3071667 (1963-01-01), Lee
patent: 3211866 (1965-10-01), Crouch et al.
patent: 3283103 (1966-11-01), Greenwood et al.
patent: 3564176 (1971-02-01), Fechant
patent: 3716685 (1973-02-01), Wilson
patent: 3717739 (1973-02-01), Kuhl et al.
patent: 3773993 (1973-11-01), Amsler
patent: 4021628 (1977-05-01), Kimblin

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