Rectifier current measuring device - current transformers with primary windings connected to rectifier A.C. leads

摘要

The secondary circuits of the current transformers contain a diode in series with a load resistor. The load resistor is in series with a bipolar voltage limiter with Zener characteristics, and two antiparallel diodes are connected to the output of the resistor. Two anti-parallel current paths in a transformer secondary circuit, each consist of at least a diode, a load resistor and a voltage limiting component. The secondary circuits of several transformers are connected through an open single phase bridge circuit to the above antiparallel current paths, each with a load resistor and a Zener diode.