Пристрій для контролю ресурсу комутаційних апаратів

Abstract

A device for control of switching unit service life comprises a current sensor, a current-to-voltage converter, the first, second, third comparator units, a univibrator, the first, second pulse generators, the first, second and third AND gates, the first, second, third and fourth AND gates, the first, second, third pulse counts, the first flip-flop, a differentiating element, a register, a signal shaper, the first signal delay unit, the first, second, third OR gates, a zero setup unit, a switching sensor, the first digital comparator unit, a digital switchboard, a selection box of break type and a functional converter. There is a motion start sensor, the second differentiating element, a voltage sensor, the fourth and five comparator units, the fourth and five OR gates, the second flip-flop, the third pulse generator, the fifth, sixth, seventh, eighth and nine AND gates, the second signal delay unit, the fourth pulse counter, on/off time setting unit, the second digital comparator unit, the first and second indicators.