Using reverse engineering design we delivered the second piece of a 3-phase Slip Ring 320KW/4P B3 525V/50Hz IC511 TYPE KΔ450-4, for a lignite mine conveyor belt operating under extremely harsh conditions in Maritsa Iztok Complex.
Motor was fully tested in test bench and its temperature rise was just 66,7°C. It is equipped with 3 bearings (2 cylindrical and 1 spherical bearing) and of course with all needed accessories (PT100, heaters etc.).