Identification and Generation of Non-Standard Switching Surges

By computer aided analysis, simple equations are derived to identify accurately the time to crest of a recorded switching surge of any wave shape. These equations allow also the determination of the tail duration without the need of recording it. A method, based on optimum voltage efficiency, is set up to calculate, for any given wave shape, the components of the impulse generating system. The results of the study are particularly useful for relatively long tailed switching surges.