Behavior of Air Insulating GAPS Stressed by Switching Overvoltages with a Double Peak

For calculating the risk of failure of an electric system due to switching overvoltage stresses, rules are needed for simulating field-generated overvoltages with laboratory-produced impulses. The present study deals with switching overvoltages that present two successive peaks and provides guidelines for estimating the response of air insulating gaps to such overvoltages.