Electric circuit interrupter of the puffer type comprising a mag

Details Electric circuit interrupter of the puffer type comprising a mag Electric circuit interrupter of the puffer type comprising a mag

1975-08-22

1977-08-09

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200147R, 200150G, H01H 3320

Patent

active

040412636

ABSTRACT:
A puffer-type circuit interrupter comprises a cylinder coupled to the conductive contact rod of the interrupter and a floating piston within the cylinder that is relatively movable with respect to the cylinder to pressurize fluid in the cylinder, which pressurized fluid is used for arc-extinguishing purposes. Means effective during an interrupting operation is provided for forcing current flowing through the rod to follow a loop-shaped path, electrically in series with the rod, that extends through the piston. This current has a magnetic effect while flowing through said loop-shaped path that acts to drive the piston within the cylinder through a fluid-pressurizing operation.

REFERENCES:
patent: 3331935 (1967-07-01), Milianowicz
patent: 3524958 (1970-08-01), Frink
patent: 3551625 (1970-12-01), Fischer
patent: 3551626 (1970-12-01), Milianowicz
patent: 3721786 (1973-03-01), Yoshioka
patent: 3745281 (1973-07-01), Yoshioka

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