High-power modular drives improve reliability, cut costs
Emerson Industrial Automation
This company has recently extended its range of high-power modular drives. Both its Unidrive M and Powerdrive F300 variable-speed drives are now available in the larger frame size 11, providing a flexible method of building compact, reliable high-power solutions, says the company. Unidrive M (photo) can control asynchronous and permanent-magnet motors in systems up to 2.8 MW (4,200 hp). The new frame 11 is a 250-kW (400 hp) module that allows system builders to create high-power solutions with the smallest number of components, keeping both footprint and cost to a minimum, says the manufacturer. Compared to competitor products, Unidrive M differentiates itself with extremely fast current-control algorithms and high switching frequencies, as well as unparalleled torque precision and power quality, says the manufacturer. The company also offers a range of high-powered drive products for compressors, fans and pumps from 90 kW to 2.8 MW. — Emerson Industrial Automation, Control Techniques Ltd., Newtown, U.K.