CALIBRATION DEVICE FOR MEASURING DEVICES OF QUALITY PARAMETRES OF ELECTRIC ENERGY AT DISTORTED SIGNALS

摘要

FIELD: electricity. ^ SUBSTANCE: device includes the following: insulating transformer; two high-frequency voltage generators; two fictitious power sources each of which includes voltage generator of sine shape of low frequency and current generator of sine shape of low frequency; two voltmetres; two ammetres; two wattmetres. Input circuit of calibrated device is made in the form of current transformer with the main and additional primary windings with known number of turns. ^ EFFECT: improving measurement accuracy. ^ 2 cl, 1 dwg