Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit automatically reconnected only after the fault is...
Reexamination Certificate
2004-12-03
2008-08-19
Sherry, Michael J (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit automatically reconnected only after the fault is...
C361S075000
Reexamination Certificate
active
07414819
ABSTRACT:
A plurality of preprogrammed switches is disposed in a looped distribution line downstream from a source of power to respond to a short circuit and to reconfigure the line to isolate the short circuit. Some of the preprogrammed switches are each provided with a unique open time interval, such as t1, t2 and t3. Others of the plurality of preprogrammed switches can then determine which switch is opening in response to the short circuit and can identify the portion of the line that is shorted. Certain of the preprogrammed switches can then reconfigure to protect the identified portion of the line.
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Keckalo David
Lee Tony J.
Cummings, P.C. Eugene M.
Nguyen Danny
Schweitzer Engineering Laboratories Inc.
Sherry Michael J
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