Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1998-10-23
1999-09-28
Gaffin, Jeffrey
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
361170, 361115, H01H 4702
Patent
active
059598263
ABSTRACT:
A control device for an electromechanical circuit breaker device. The device includes a bistable type electromagnet to deliberately control power contacts and a monostable trip electromagnet to open the contacts in case of a fault. The bistable electromagnetic coil and the trip electromagnetic coil are placed in parallel with a capacitance. The control device includes a maintained control switch and an H bridge of two-way switches associated with the bistable coil. The control device acts on the bridge of switches and a trip switch opens the contacts depending on the current in the coils measured by sensors.
REFERENCES:
patent: 3549955 (1970-12-01), Paine
patent: 4025821 (1977-05-01), Lang
patent: 4602309 (1986-07-01), Gaude
patent: 4926282 (1990-05-01), McGhie
patent: 5657194 (1997-08-01), Waltz
Baurand Gilles
Cuny Jean-Christophe
Gousset Alain
Guibert Philippe
Gaffin Jeffrey
Huynh Kim
Schneider Electric SA
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