Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Patent
1982-03-16
1985-01-01
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural inputs
324107, 324127, G01R 1148, G01R 120
Patent
active
044917902
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: 3934198 (1976-01-01), Milkovic
Karlsen Ernest F.
Lanyi William D.
Westinghouse Electric Corp.
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