FIELD: electricity.
SUBSTANCE: in a three-phase four-wire network, three phase and two line-to-line voltages are measured by voltmeters and, based on the results of five voltages measurements, the symmetrical components of the forward, reverse and zero sequence voltages are determined by formulas.
EFFECT: determination of symmetrical components of the forward, reverse and zero sequence voltages in three-phase four-wire networks based on voltmeter voltage measurements.
2 dwg
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