Electric energy meter having a mutual inductance current transdu

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

1982-03-20

1983-11-01

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

324107, 324127, G01R 1148, G01R 120

Patent

active

044132301

ABSTRACT:
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 winding 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 measuring circuit.

REFERENCES:
patent: 3226641 (1965-12-01), Miller
patent: 3343084 (1967-09-01), Gambale et al.
patent: 3519933 (1970-07-01), Lopez
patent: 3764908 (1973-10-01), Elms
patent: 3864631 (1975-02-01), Zitelli et al.
patent: 3934198 (1976-01-01), Milkovic

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