Power measuring apparatus

Details Power measuring apparatus Power measuring apparatus

1980-04-14

1982-02-02

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

324115, 324119, G01R 1502, G01R 1508, G01R 1922

Patent

active

043142010

ABSTRACT:
Power measuring apparatus for electric appliances including interconnected male and female connectors for attachment to a source of power and to an appliance to be measured, a transformer having a primary winding in series with one of the conductors interconnecting the connectors, a potentiometer having a resistance element connected with the secondary winding on said transformer and a movable contactor, and an indicator connected between the contactor and one end of the resistance element, the potentiometer being calibrated in terms of cost per kilowatt-hour and the indicator being calibrated in terms of cost per hour.

REFERENCES:
patent: 4120031 (1978-10-01), Kincheloe et al.
"Power Meter"; Popular Science; Mar. 1976; p. 152.

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