Electrode for vacuum circuit breaker

Details Electrode for vacuum circuit breaker Electrode for vacuum circuit breaker

1996-04-23

1998-06-09

Gellner, Michael L.

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Vacuum

H01H 3366

Patent

active

057638489

ABSTRACT:
An electrode for a vacuum circuit breaker provided with a connecting portion made of a material having the same resistivity as the arc running face portions across the corresponding arc guiding channel at the outer circumferential end thereof, wherein when the outer diameter of the connecting portion is D.sub.1 and the inner diameter of the connecting portion is D.sub.2, the width of the connecting portion is designed so that the ratio D.sub.2 /D.sub.1 is in a range of more than 0.9 and less than 1.0. An arc generated between the electrodes is magnetically driven over the arc running face portions via the connecting portion so that the current interrupting capacity of the electrode is increased and the size and weight of the electrode are reduced.

REFERENCES:
patent: 3280286 (1966-10-01), Ranheim
patent: 3711665 (1973-01-01), Dethlefsen
patent: 4553002 (1985-11-01), Slade

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