DIFFERENTIAL RELAY FOR TRANSFORMER cutoff

摘要

Relay for the differential transformer cutoff, connected to the differential circuit of the secondary windings of current transformers and comprising relays AC multiturn winding and the resistance in the differential circuit, the terminals of which are connected inertia chain, voltage limiter, step-up transformer with a resistor, the feed resonance inductive-capacitive parallel circuit, which is a relay coil inductance, characterized in that the inertial chain is in the form of active-inductive circuit, and a limiter-up transformer - in the form of a saturable current transformer with primary and secondary multiturn coils.