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 counters, linearization unit, unit of analog-digital conversion of current and pressure to digital code, unit for determination of switching time, synchronization unit. At the moment of current flow through switch the value of that current 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.