FREQUENCY OR PHASE RELAY Russian patent published in 1995 - IPC

FIELD: power engineering. SUBSTANCE: frequency or phase has two square-shape pulse formers, pulse distributor, master oscillator, analog-to-digital converter counter, register of analog-to-digital converter, permanent memory, digital comparator, D flip-flop, address counter of permanent memory, setting digit counter, setting register of permanent memory, blocking trigger, operation and return setting triggers operation and return pulse counters, output trigger, trigger, condition register. EFFECT: improved precision of measurement of phase of frequency. 2 cl, 1 dwg