From DC to AC

THIS ARTICLE PRESENTS A CASE history of the conversion of a rotary lime kiln from a dc drive system to an ac drive system. The discussion includes the following aspects: □ existing equipment and its history □ the need for the upgrade and the required results □ mechanical drive-line considerations □ drive alternatives investigated □ a description of the hardware used □ the installation □ drive commissioning □ results achieved □ future enhancements.