United Utilities chooses ABB drives for major water project29 July 2010

ABB has won a contract to supply two medium voltage drives to a water project that will form a vital part of the water supply system for the North West of England.

The drives will control pumping for the £125 million West East Link Main, being built by J Murphy and Sons, for United Utilities, between Merseyside and Greater Manchester. The 55km, 1.2 metre diameter pipeline will connect the two areas, allowing United Utilities to move water around the region and balance supplies from the Lake District and North Wales.

From west to east the water will need to be pumped along the pipe, so ABB is to supply two ACS1000i medium voltage drives and two AMA500L6A ac machines, both rated at 1790kW, for United Utilities' Prescot works.

Paul Foden, projects manager for Nomenca, mechanical and electrical sub-contractor for the project, says: "The integral transformer in the drives allows us to step-down the site voltage to the drive, so minimising space requirements. The drives are also 24-pulse, ensuring they produce minimum harmonic interference to neighbouring properties, which was very important to United Utilities."

Brian Tinham

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