Application of isolation transformers for paper machine drives

Abstract

Application guidelines are presented regarding the proper application of isolation transformers on solid-state paper-machine drive systems. After discussing proper transformer-rating selection, the eleven guidelines are given without full academic proof but with the belief that they are practical and generally conservative. These rating and application guidelines are for DC sectional paper-machine drives, although most of the suggestions are applicable to DC winder drives, and many are also applicable to AC sectional paper-machine drives.<>