High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Operating mechanism structure or arrangement
Patent
1997-04-09
1998-05-26
Gellner, Michael L.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Operating mechanism structure or arrangement
H01H 3342
Patent
active
057569525
ABSTRACT:
An operating mechanism for a circuit-breaker, for carrying out an O-C-O cycle, followed by a C-O cycle, includes a tripping spring and a setting spring, coaxial with each other. Expansion of the setting spring compresses the tripping spring. The setting spring is compressed by an arrangement coaxial with the springs including a reversible electric motor.
REFERENCES:
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patent: 4162385 (1979-07-01), Bould et al.
patent: 4414449 (1983-11-01), Garzon
patent: 4535208 (1985-08-01), Wallimann et al.
patent: 4678877 (1987-07-01), Nicoloso
patent: 5508487 (1996-04-01), Smith et al.
Friedhofer Michael A
GEC Alsthom T & D S A
Gellner Michael L.
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