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TEC Force Ventilation Fan for a 355 Framed Electric Motor, 960 RPM, 400/3/50 Supply Voltage
There is an increasing need for variable speed drive applications for motors with enhanced cooling while running at low speeds. Closed-loop AC inverters are supplied at zero speed by 100% motor speed. A second, small, constant speed motor for driving the cooling fan is the easiest way to get this done. The use of force ventilated or blown separate engines is not new, but new concepts are being introduced with the advent of static frequen...