Current transformer saturation correction using artificial...

Details Current transformer saturation correction using artificial... Current transformer saturation correction using artificial...

G - Physics

01

R

G01R 19/00 (2006.01) G01R 15/08 (2006.01) H02H 1/00 (2006.01) H02H 1/04 (2006.01) H02H 3/05 (2006.01)

Patent

CA 2280281

A method and apparatus of correcting for saturation in a current transformer, which outputs a current measurement, is provided. A switching algorithm receives a value of the current measurement from the current transformer and determines within which of three ranges the value falls. If the value falls in a first range, the current measurement is provided to a protective device such as a relay. If the value falls in a second range, the current measurement is provided to an artificial neural network that produces an output that accounts for saturation of the current transformer. If the value falls in a third range, the current measurement is provided to another artificial neural network that produces an output that accounts for saturation of the current transformer.

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