Arc-rotating magnetic blast coil for the contact element of an e

Details Arc-rotating magnetic blast coil for the contact element of an e Arc-rotating magnetic blast coil for the contact element of an e

1988-09-22

1990-04-17

Macon, Robert S.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 3318

Patent

active

049182684

ABSTRACT:
An arc-rotating magnetic blast coil for the contact element of an electric switch, the coil comprising, in particular, a conducting cup (1) which is cylindrical in shape and which is connected to a current inlet (33), a winding (23) disposed inside the cup to produce a magnetic field along the axis of the cup and having one end (14) connected to the cup, a conducting core (7) connected to the other end (12) of the winding and situated in the center of the winding, and a fixed circuit-breaking contact disposed ahead of the coil relative to said cup within the magnetic field produced thereby and electrically connected to said core, characterized in that the winding is constituted by means of a flat conductor (8) comprising a plurality of turns wound on the core together with an insulating sheet, and in that means (16, 9) are provided for putting the winding under compression.

REFERENCES:
patent: 4052577 (1977-10-01), Votta
patent: 4259554 (1981-03-01), Smith et al.
patent: 4329551 (1982-05-01), Bernard et al.

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