Drive helps cut costs
March 1st 2004 An ABB drive is helping SEH Europe save energy while providing increased capacity on its water ring main pumping system. It has reduced duty for the pump to 60% during normal conditions.
Problems occurred when a new machine was installed. Its water demand was so high that it caused a severe pressure drop in the system.
The variable speed drive was recommended by Proshield, who installed it along with a pressure sensor. Using the control algorithms in the drive, a control system was set up that matches supply to demand according to the signals received from the pressure sensor.
The pump control system took the place of the pressure relief valve in maintaining system pressure under various demand conditions. More articles from ABB Limited: | 
