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Squirrel cage induction motor for driving a disperser in an paper mill

Customer:  Paper mill (Austria)

As part of the uprating of a disperser drive from 450 to 710 kW (the disperser has a capacity of max. 710 kW), an about 20 year old motor (brand Siemens) was replaced by the new motor. One of the two existing old motors is retained as a reserve. Because the new rib-cooled motor despite the higher power has a significantly smaller frame size than the original tube-cooled motor, a two piece intermediate frame was fabricated and supplied to adjust the frame size. On the base were made no changes, because the old motor must be used as a reserve again.

Technical characteristics:

  • Type: MEBKGR400-04
  • Rated Power: 710 kW
  • Voltage: 6,000 V
  • Frequency: 50 Hz
  • Poles: 4
  • Rated Speed: 1,490 min-1
  • Mounting: IM B3
  • Protection: IP 55
  • Cooling: IC 411
  • Weight: 4,400 kg
  • Pieces: 1