Case story | VLT® AutomationDrive FC 302 Back-channel cooling, a simple and efficient solution for the Sagrex Lemay quarry, Belgium (HeidelbergCement Group) 90% of heat load is removed, preventing thermal overload of equipment drives.danfoss.com2 Danfoss Drives · DKDD.PC.321.A1.02 Limestone crusher no longer vulnerable to unplanned shutdowns Limestone crushing represents a large proportion of the electrical energy consumed by the Sagrex Lemay quarry in Antoing, Belgium. It is therefore par- ticularly interesting to look for possible savings. Traditional starter solutions (DOL, star-delta, soft starters) generate high current peaks and thermal over- loads (motor and transformer) that limit the number of start-ups per hour and the adaptability to production needs, not to me

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