01 November 2012
Tasked with replacing two ageing autotransformer starters at the Kempton Water Treatment Works of Thames Water, Varicon (3D) Drives, a specialist in the service, repair, supply and installation of motor control equipment, selected Vacon NXS ac variable speed drives for the project.
The drives are used in conjunction with high-lift pumps that provide an auxiliary water feed to the low-pressure main.
Varicon selected Vacon NXS drives for the application because its previous experience with the products had shown them to be easy to use, dependable and value for
money. In addition, the robust design incorporates effective protection against supply network disturbances and trip-free operation is guaranteed by sophisticated motor control principles and motor/drive protection features.
For this project, Varicon used Vacon drives with ratings of 160 kW. The IP21 chassis versions were chosen and were pre-installed in enclosures prior to delivery to minimise the time needed on site for installation, wiring and commissioning.