Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1994-10-04
1996-02-20
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335 20, 218 16, H01H 7500
Patent
active
054932645
ABSTRACT:
An electrical protection apparatus is formed by association of a circuit breaker electrically connected in series with an effector. Switching of the arc onto an electrode when tripping of the mechanism occurs following a fault causes shunting of the effector. The electrode is separated from the stationary contact by an insulating gap, which is dimensioned to enhance said switching of the arc onto the electrode at the beginning of the opening travel of the movable contact, and to guarantee the dielectric withstand in the closed state of the contacts of the circuit breaker, and in the open state of the effector.
REFERENCES:
patent: 2551302 (1951-05-01), Theunissen
patent: 4456832 (1984-06-01), Greer et al.
patent: 4532486 (1985-06-01), Terrier
patent: 5079529 (1992-01-01), Ohishi et al.
Patent Abstracts of Japan, vol. 14, No. 89 (E-0891) Feb. 1990.
Domejean Eric
Frolla Alain
Menier Alain
Nardin Jean-Jacques
Donovan Lincoln
Schneider Electric SA
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