METHOD FOR MULTI-PHASE MEASUREMENT OF EFFECTIVE VOLTAGE IN ALTERNATING CURRENT ELECTRIC NETWORKS

摘要

A method for measurement of effective value of voltage in alternating current electric networks includes the measurement of effective value of voltage that is performed as multi-phase – simultaneously with several measuring devices for measurement of the square of current value of voltage for time equal to period, from different instants of phase angle of the voltage being measured, with following division of the results obtained by duration of the period and with extraction of square root.