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Deragging

Keeping waste water pumps clean

24 September 2011
Ragging of wastewater pump impellers is a serious ongoing issue as traditional methods can reduce pump efficiency and cause pump blockage; resulting in major downtime to lift the pump out of service to carry out maintenance and extensive wearing of the pump long term. 

To solve this problem the dedicated ‘Deragging’ software feature built as standard within the Danfoss VLT® AQUA Drive ensures that highest pump efficiency is maintained and ragging of the impeller is minimised.

Source of picture www.pompkennis.nl
For further details on how this function works and for more guidelines on dealing with this issue read on.
VLT AQUA Drive
VLT Soft Starter MCD 500

The new intelligent VLT® Soft Starter MCD 500

The Danfoss VLT Soft Starter MCD 500 is a new soft starter in the power range from 7.5 to 800 kW (21 - 1600 A) with sofisticated start- and stopfunctions. 

New in the MCD 500 is the Adaptive Acceleration Control (AAC) function. This function developed by Danfoss adds intelligence to the soft starter. By continuously measuring the motor current and calculating the actual load, the MCD 500 fully automatically adjusts the start and stop profiles to obtain the best possible acceleration and decelaration for your application.