One project management approach in the selection of a variable frequency AC sectional drive

Variable frequency AC (VFAC) sectional drives are now a viable option to the conventional DC drive. The high-tech electronics industry of power devices, integrated circuitry, personal computers and software have developed an AC drive using vector control which has similar features to a DC drive. Although enthusiastic consideration is seen offshore, the North American market seems to be very slow in recognizing its merits. This paper has been written to share one experience in the selection, installation and operation of an AC sectional drive. It is more of a practical approach as there are many papers available that discuss the technical features. Since the equipment is driving a research pilot coating machine, there are obviously some details omitted which the company felt were confidential but these do not impact on the intent of the paper.<>