FIELD: electricity.
SUBSTANCE: device for testing of inductive electric metres contains the first and second groups of thyristor, diode and transistor interconnected in parallel; conductors from the side of thyristor cathode, diode anode and collector of n-p-n-transistor in each group are connected to outputs of the plug inserted into a socket of the power consumer while energy storage capacitor is connected between emitter circuits of transistor in the first and second group, at that control junctions of the latter are connected by means of the transformer to high-frequency pulse generator with variable frequency and thyristors are opened in sequence at the beginning of the second and forth quarters of the mains voltage period respectively for the second and first group by means of a control unit synchronized by mains voltage.
EFFECT: possibility to set frequency of modulated oscillations at which winding off of the readings is maximum at the preset capacity of the energy storage capacitor.
2 cl, 5 dwg
