Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 14, 2009
Patent Application Number
11646623
Date Filed
December 28, 2006
Patent Primary Examiner
Patent abstract
A method of protecting a circuit having power switching devices that includes communicating a current in at least one secondary switching device to at least one master switching device and determining a presence of a fault condition within at least a first zone based at least in part upon characteristics of the current in the at least one secondary switching device communicated to the at least one master switching device to perform differential protection.
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