Directional fault current indicator

Details Directional fault current indicator Directional fault current indicator

G - Physics

01

R

G01R 31/08 (2006.01) G01R 31/02 (2006.01) H02J 13/00 (2006.01)

Patent

CA 2636677

A method for identifying a fault condition associated with a power line conductor of an electrical power distribution network. The method comprises determining a load current carried by the conductor is above a minimum load current, determining a learned phase angle relationship between the load current and a source signal, determining a load current magnitude, determining a real-time phase angle relationship between the load current and the source signal and indicating a fault condition when the real-time phase angle relationship is within a predetermined number of angular degrees of the learned phase angle relationship and when the load current magnitude exceeds a fault-indicating current.

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