Electromagnet system for electromagnetic switchgear

Details Electromagnet system for electromagnetic switchgear Electromagnet system for electromagnetic switchgear

1982-09-30

1984-09-25

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335281, H01F 710

Patent

active

044738080

ABSTRACT:
An electromagnet system for electromagnetic switchgear, the system having movable and stationary magnet portions, the stationary magnet portion having a pole surface wherein slots are provided for inserting a short-circuit ring. The slots are arranged so that the short-circuit ring may be substituted with a pole plate which extends beyond the pole surface on all sides. The pole plate has an opening which corresponds to the size of the pole surface. The opening is provided with two straps thereacross which can be inserted into the slots. This arrangement permits operation of the electromagnet system in response to AC, as well as DC, excitation.

REFERENCES:
patent: 2162465 (1939-06-01), Guilder
patent: 2735967 (1956-02-01), Lewus

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