INSTRUMENT CURRENT TRANSFORMER Russian patent published in 2004 - IPC

FIELD: precision measurement of currents in single-and three-phase high-voltage networks. SUBSTANCE: instrument current transformer has input and output current buses, divider of measured current from n current-carrying branches connected in parallel-four-pole shunts is connected in parallel to them. Resistive leads-out of shunts are connected to corresponding inputs of measurement module which output is output of current transformer. EFFECT: increased measurement precision, diminished level of magnetic leakage fields, reduced cost, mass and dimensions and raised reliability of transformer. 1 dwg