Hybrid electronic current transformer for the measurement of current in power supply circuits, with equal to - or ac power systems

摘要

Hybrid electronic current transformer for the measurement of current in power supply circuits, with equal to - or ac power systems, with a current sensor (3), by means of which one of the measured value corresponding useful variable at a high voltage potential can be generated, a first electronic system (4) at a high voltage potential, to which the useful variable and 5 by means of which the useful variable a digitizer as - and can be converted into light pulses, and a second electronics (8) at ground potential, to which the digitized and converted into light pulses useful variable 5 by means of optical fibres (9) and by means of which the digitized and converted into light pulses useful variable back into an electrical analog signal or convertible in view there is in such a way that, by way of a standard protocol a communication with terminals (16) can be realized.