Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Automatic circuit-interrupting devices
Patent
1992-09-17
1994-06-14
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Automatic circuit-interrupting devices
335190, H01H 7312
Patent
active
053213769
ABSTRACT:
A tagging relay is designed to provide for remote, central control of electrical distribution lines and their respective breaker coils, such control formerly being manually effected only. The relay has a switch shaft construction rotatable from a first, "closed" position to a second, "open" position, from the second position to a third, "tagged" position, from the third to the second position, or from the second to the first position. The rotation can be effected manually via a handle, or remotely via electrical input to one or more solenoids. The relay is designed and constructed such that actuation of any one solenoid may effect rotation of the switch shaft construction to one of the three positions, exclusively. The switch shaft construction is operably linked to a contact-carrying rotary switch shaft provided within a conventional, stationary contact-carrying switch body. The switch body is addressable by wires and may be arranged such that when the relay is switched to any of the first, second, or third positions, a particular signal is transmitted from the relay to a remote location, indicating such positional status, and/or energizing or de-energizing a particular power line or breaker coil. The switch body may also be wired and arranged such that particular incoming signals from a remote location may effect particular switching changes among and between the first, second, and third positions.
REFERENCES:
patent: 4133020 (1979-01-01), MacLean
patent: 4137439 (1979-01-01), MacLean
patent: 4255733 (1981-03-01), MacLean
patent: 4301433 (1981-11-01), Castonguay et al.
patent: 4507641 (1985-03-01), Poth
Donovan Lincoln
Electro Switch Corp.
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