Electricity: circuit makers and breakers – Multiple circuit control – Operating means
Patent
1996-05-01
1998-01-20
Hecker, Stuart N.
Electricity: circuit makers and breakers
Multiple circuit control
Operating means
335 18, H01H 300, H01H 73100
Patent
active
057103992
ABSTRACT:
A field-installable circuit breaker trip actuator unit includes a flux shifter unit that interfaces with the circuit breaker operating mechanism and is installable without dismantling the circuit breaker components. The flux shifter unit responds to an electronic trip unit to articulate the circuit breaker operating mechanism and separate the circuit breaker contacts upon occurrence of an overcurrent condition. A reset arrangement allows the trip actuator unit to be automatically reset upon completion of the contact separation process.
REFERENCES:
patent: 3073936 (1963-01-01), Baird
patent: 3761778 (1973-09-01), Willard
patent: 4246558 (1981-01-01), Zubaty et al.
patent: 4672501 (1987-06-01), Bilac et al.
patent: 4679019 (1987-07-01), Todaro et al.
patent: 4814738 (1989-03-01), Krasser et al.
patent: 4860157 (1989-08-01), Russell
U.S. Application No. 08/551640 filed 11 Nov. 1995 Castonguay & Lord.
Castonguay Roger N.
Lord Jeffrey D.
General Electric Company
Hecker Stuart N.
Horton Carl B.
Menelly Richard A.
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