Реле часу

Abstract

The invention proposes a time-delay relay which consists of connected to one another a scan generator, a controlled variable frequency generator and a frequency comparison unit, as well as a comparator and an amplitude regulator. A first comparator output is connected to output of the frequency comparison unit, a second comparator output is connected to output of the amplitude regulator; comparator output is output of the time-delay relay. A detector is incorporated in the time –delay relay, output of which is connected to output of the variable frequency generator, output being connected to input of the amplitude regulator.