Пристрій для контролю ресурсу повітряних високовольтних вимикачів

Abstract

A device for monitoring resource of air high-voltage switches comprises sensors of current, pressure and switching, as well as resource counter counters, unit of analog-digital conversion for measuring and calculation of current amplitude at current sensor output, unit for determination of switching time. At the moment of current flow through switch the current value and value of compressed air pressure are stored and recalculated on the basis of rated operational current interruption. In the resource counter the switch operation resource at the moment of switching is accounted.