Summing watt-hour transducer

Details Summing watt-hour transducer Summing watt-hour transducer

1979-07-19

1981-09-08

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

307 38, 324103R, G01R 2106, G01R 1916, H02J 314

Patent

active

042887445

ABSTRACT:
A summing watt-hour transducer is connected to a three-phase power line to monitor the energy being supplied to one load, and is connected to an ordinary watt-hour transducer that monitors energy supplied to a second load. A summing integrator circuit sums and integrates signals derived from the power line and the ordinary watt-hour transducer to obtain a voltage proportional to a unit of total energy demand. The summing operation is triggered by a signal from a control circuit that is responsive to contact closure pulses from the ordinary watt-hour transducer. Output signals from the summing integrator circuit are converted to contact closures for input of energy demand signals to an energy demand/schedule controller.

REFERENCES:
patent: 3470471 (1969-09-01), Moore
patent: 3794917 (1974-02-01), Martin et al.
patent: 3976941 (1976-08-01), Milkovic
patent: 4075699 (1978-02-01), Schneider et al.
patent: 4079313 (1978-03-01), Callan
patent: 4125782 (1978-11-01), Pollnow, Jr.

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