ELECTRICITY METER Russian patent published in 2002 - IPC

FIELD: electrical engineering, counting kilowatt-hours of consumption of active electric energy in A C networks of commercial frequency. SUBSTANCE: compensation of increment of measured value of power caused by effect of additive noise across output of multiplier takes place in proposed electricity meter by means of connection of the latter through signal outputs of first and second switching circuits to non-inverting and inverting inputs of unipolar power supply source which outputs are additionally connected to first leads of first and second capacitors which other leads are correspondingly connected to common bus. EFFECT: enhanced accuracy of measurement of consumed electric energy. 2 dwg