Variable speed drive cuts risk of sewerage leaks

A pump control system based on an ABB variable speed drive is helping Severn Trent Water protect local homes from the risk of sewerage overflow Severn Trent Water has cut the risk of flooding homes with sewage overflow by installing an ABB variable speed drive (VSD) within a pump control system. The new control system is switched on if the primary programmable logic controller (PLC)-based wash water control system fails, avoiding the need to use…