Influence of resistance on switching transients

THE voltage recovery transient appearing across the terminals of a circuit-interrupting device has been the subject of numerous studies during the past ten years. Their importance has justified these studies because they determine in part the severity of the duty impressed upon circuit-interrupting devices. These studies have consisted of mathematical analyses of circuit conditions, calculating board investigations and studies of oscillographic records of the actual transients, as they are obtained on systems and in high-power laboratories.¹