DEVICE FOR MEASURING POWER IN ELECTRIC CIRCUITS OF SINUSOIDAL CURRENT Russian patent published in 2018 - IPC G01R21/06 

FIELD: measuring equipment.

SUBSTANCE: invention relates to the electrical measurement technique and is intended for measuring active, reactive and full powers in electrical circuits of a sinusoidal current, and can be used to monitor and calculate the consumed electrical energy. In the known device, that measures the instantaneous power values in electrical circuits of a sinusoidal current and emits two amplitude detectors the maximum and minimum instantaneous power values, the active power is determined by summing them. An additional adder and inverter are introduced to determine the total power by adding the modules of these extremal values, and to determine the reactive power, additional blocks of multiplication and square root extraction are added.

EFFECT: expansion of the functionality due to the measurement of the active, reactive and full powers of the sinusoidal current is the technical result of the invention.

1 cl, 5 dwg, 1 tbl