Electric energy meter having a mutual inductance current...

Details Electric energy meter having a mutual inductance current... Electric energy meter having a mutual inductance current...

G - Physics

01

R

324/70

G01R 11/00 (2006.01) G01R 11/36 (2006.01)

Patent

CA 1181133

ABSTRACT OF THE DISCLOSURE An electric energy meter includes a mutual inductance current transducer formed by primary winding means for direct connection to the current component of an electric energy quantity to be measured. Secondary wind- ing means is inductively coupled to the primary winding means to produce an analog signal that is proportional to the time derivative of the current component. The current responsive analog signal and a voltage responsive analog signal are both applied to an electronic watthour mea- suring circuit.

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