High voltage d-c vacuum interrupter device with magnetic control

Details High voltage d-c vacuum interrupter device with magnetic control High voltage d-c vacuum interrupter device with magnetic control

1977-03-14

1978-12-19

Smith, Alfred E.

Electric lamp and discharge devices: systems

Discharge device load

Discharge drawing-type discharge device

200144B, 313146, 313162, 315338, 315340, 315344, 315357, H01J 150, H01H 944

Patent

active

041307810

ABSTRACT:
A circuit interrupter which can be used as a high voltage d-c breaker or fault current limiter transfer switch or the like contains a pair of cooperable contacts disposed in an evacuated container. One of the contacts also serves as the cathode of a magnetically modulated vacuum arc discharge device. This cathode is spaced from an anode disposed in the wall of the evacuated housing. The anode is surrounded by a winding which is capable of producing a magnetic field which can increase the impedance of the arc plasma between the cathode and anode in order to decrease the arc current and extinguish the arc. The cooperable contacts within the interrupter serve to carry load current and also serve to create the inital arc which is transferred between the anode and cathode structures.

REFERENCES:
patent: 3696264 (1972-10-01), Clark et al.

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