Device for measurement of electrical energy comprising a...

Details Device for measurement of electrical energy comprising a... Device for measurement of electrical energy comprising a...

G - Physics

01

R

G01R 21/06 (2006.01) G01R 21/133 (2006.01) G01R 29/02 (2006.01)

Patent

CA 2150521

A device for measurement of electrical energy having current and voltage sensors 1, 2, a multiplexing circuit 8 and an analogue to digital converter 11. A microprocessor 9 controls the multiplexing circuit in order to supply the current and voltage signals alternately to the converter 11, the microprocessor 9 calculating the electrical energy at a moment in time using two values of the voltage situated around a current sample and using three samples of the current. By these means the time delay between samples of the voltage and current can be corrected.

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