Abstract

Provided a block diagram and a schematic circuit diagram of the designed device used to measure the phase shift between the unbalanced sinusoidal voltages of the three-phase circuit, voltage value and frequency. Also shown the operation algorithm of a microcontroller during processing data arriving at the two inputs of the measuring device. Considered the signal conversion mechanism and justified the choice of circuit elements parameters. Shown the advantages of the used measurement method and designed device in comparison with existing analogues.

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