Watt-hour meter

Details Watt-hour meter Watt-hour meter

1986-10-30

1988-11-01

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

324141, 340637, 01R 2106, 01R 1100, G01R 2106, G01R 1100

Patent

active

047822872

ABSTRACT:
In a watt-hour meter pulse width modulated signals, representing the voltage supplied to a load, serve as chopping signals that modulates a waveform representing current to produce an output indicative of power. A series of pulses is spaced on the basis of the power signal and the number of pulses connected as a measure of energy.

REFERENCES:
patent: 3461392 (1969-08-01), Hughes et al.
patent: 3484593 (1969-12-01), Schmoock et al.
patent: 3835419 (1974-09-01), Milne et al.
patent: 3976942 (1976-08-01), Mayfield

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