Composite circuit breaker
AssigneeHitachi, Ltd.
InventorsYoshitomo Gotoh, Kiyofumi Iwamoto
Life of this patent
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Abstract
A composite circuit breaker comprises a closing switch part disposed between a pair of conductors at a position relatively near a load apparatus, a vacuum circuit-breaking part disposed between the conductors at a position adjacent to the closing switch part but relatively remote from the load apparatus, an operating mechanism operating the making and breaking operation of the closing switch part and vacuum circuit-breaking part, and a delaying mechanism including a delaying lever for delaying the making and breaking operation of the vacuum circuit-breaking part actuated by the operating mechanism relative to that of the closing switch part operated by the operating mechanism.
Claims17
A composite circuit breaker comprising:
- a vacuum circuit-breaking part including a vacuum envelope, at least one pair of contacts disposed within said vacuum envelope, and rods respectively extending to an exterior of said vacuum envelope from said contacts;
- a closing switching part disposed in parallel with said vacuum circuit-breaking part and including a closed housing having disposed therein at least one pair of contact members, a dimension of a stroke of engagement between said contact members is larger than that between said contacts, and contact rods extending to the exterior of said closed housing from said contact members, respectively;
- conductors respectively connecting said rods to said contact rods;
- operating means including operating rods respectively operatively connected with one of said rods and one of said contact rods associated with one of said conductors, said operating rods moving one of said contacts and one of said contact members so that said contacts and said contact members are respectively connected and disconnected;
- and
- delaying means including a delaying lever associated with said operating means, said delaying means delaying a connecting and disconnecting operation of said contacts latter than that of said contact members.
Dependencies are inferred from the claim text.