INDUCTION SUPPLY METRE ANALYSER Russian patent published in 2014 - IPC G01R11/24 

FIELD: instrumentation.

SUBSTANCE: analyser comprises reservoir capacitor charged at 1^st and 3^rd quarters of supply voltage periods by intermittent current. Their discharge occurs smoothly in time at 2^nd and 4^th quarters of supply voltage periods. Note here that said capacitors are connected in pairs to phase and zero conductors of electric circuit via diode and transistors connected in series therewith with allowance for polarity of said connection of electrolytic capacitors. The latter make two bridge circuits operating in turns in positive and negative half-waves of supply voltage. Thyristor and throttle are connected in series to bridge circuit diagonal to connect every pair of reservoir capacitors for their smooth discharge back into circuit. Note here that windings of both throttles are fitted on common magnetic core with its flux reversal. Transistor and thyristor are ON/OFF by control unit timed by supply voltage.

EFFECT: compact and high-efficiency device.

4 dwg