Пристрій для контролю ресурсу комутаційних апаратів

Abstract

A device for control of switching unit service life comprises a current sensor, six comparator units, a start motion sensor, the first, second, third and fourth AND gates, four pulse counters, the first pulse generator, a signal shaper, a setting zero unit, the first OR gate, the first, second and third optrons, a reference voltage source, the first and second functional converters, a start motion sensor, the first differentiating element, a NOT gate, a univibrator, a digital switch, the first, second and third electronic switches, the first and second EXCLUSIVE OR elements. There is an AC voltage-to-DC voltage converter, a start motion sensor, the second differentiating element, a voltage sensor, the seventh and eighth comparator units, the fourth and fifth optrons the second and third OR gates, a flip-flop, the second pulse generator, the fifth, sixth, seventh, eighth and ninth AND gates, a signal delay unit, the fifth pulse counter, an on/off time setting unit, the third digital comparator unit, the first and second indicators.