Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chadburn Troy Daniels0
Bogdan Z Kasztenny0
Date of Patent
April 13, 2021
Patent Application Number
16453747
Date Filed
June 26, 2019
Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
Polarizing signals for electric power system directional overcurrent and distance protection are disclosed herein. The polarizing signal may be determined using a power system tracking signal, generated using a synchronous reference frame to track to a pre-fault voltage, and maintained using a phase-locked loop. The power system tracking signal may be used for a time after a voltage signal is lost, after which a self-polarizing signal may be used. Where voltage signals are not available, a current may be used to generate the polarizing signal.
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