Stoerungsgeschuetztes,hochempfindliches Differentialrelais

摘要

A differential relay comprising a homopolar transformer and a parallel electromechanical relay having low power consumption comprising an amplifier disposed between the output of the homopolar transformer and the electromechanical relay and characterized in that the aforementioned amplifier comprises essentially a differential amplifier, one of the inputs of which receives the output voltage of said transformer.