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Menzel Elektromotoren customises large slip ring motor for cement mill

Published by
World Cement,


Menzel Elektromotoren has adapted and delivered a 6500-kW slip ring motor for a cement mill at short notice. The MEBSSL-type motor is ideally suited for industrial applications with high starting torques. Menzel adapted the internal motor winding connections for a 60-Hz mains voltage in the country of operation, Canada, and moved the terminal box according to customer specifications.

The capability to provide such a flexible, on-schedule customisation was decisive for winning the contract. The motor design moreover ensures a long-term reliable operation in the target application. The motor series is characterised by high efficiency, high power density, a compact design, robust bearings and high load capacity. The welded-steel housing is designed for maximum torsional rigidity and optimal cooling. The motor features protection class IP55, cooling class IC 611 and a nominal torque of 52076 Nm. The enclosed self-cooling system, a detached air-to-air heat exchanger, ensures high efficiency and optimal dust protection. Slip ring motors are still the preferred choice of many cement plant operators. In dusty environments, they offer great advantages over the combination of squirrel-cage motors and frequency inverters because they need no power electronics and are therefore much more resilient. Not least, there is a considerable price difference in this performance class. Three-phase slip ring motors, which are started with a liquid starter, offer an economic solution for driving mills, crushers and conveyors. They only require small starting currents and provide the full torque from standstill.

Read the article online at: https://www.worldcement.com/product-news/23112021/menzel-elektromotoren-customises-large-slip-ring-motor-for-cement-mill/

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European cement news