Current limiting switch capable of rapid circuit breaking

Details Current limiting switch capable of rapid circuit breaking Current limiting switch capable of rapid circuit breaking

1980-05-19

1982-03-09

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 38, 335189, H01H 7710

Patent

active

043192106

ABSTRACT:
Current limiting switch for rapid circuit breaking, including at least one pair of contacts, one contact being mounted stationary and the other being mounted on a movable arm. The contact arm is rotatable about a fixed point upon surpassing a predetermined current threshold value, by means of an electromagnet energized by the current passing through the switch. The electromagnetic means comprise an electromagnet and a first and a second armature cooperating with the electromagnet, in which the first armature drives the movable contact in the direction of disengagement and the second armature releases a locking device, which blocks the movable contact in the direction of movement until the current threshold is reached.

REFERENCES:
patent: 3534305 (1972-10-01), Strobel
patent: 3663903 (1972-05-01), Kussy et al.

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