LH-395 FURNISH AND INSTALL NEW VFD’s FOR HIGH LIFT PUMPS Design/Build Contract
Owner: Detroit Water & Sewerage Department
Design: Rhodes & Associates
Design/Build Contract Value: $13,326,000
Design/Build Design Value: $999,100
Project Completion: Mar 2010
Project Manager: Brian Rhodes
DES provided design/build of new Variable Frequency Drives, each with a bypass contactor/starter for three existing 5,500 horsepower high lift pumps at the Detroit Water & Sewerage Department’s Lake Huron Water Treatment Plant. The work also included develop, test and implement new control strategies for the Imlay Pumping Station.
This project entailed the design of the (a) Furnish and Install new VFD’s, each with a bypass contactor/starter for High Lift Pumping Units 2, 8, and 9, (b) construct a new room to house the new Variable Frequency Drives, (c) Modify the existing 13.2 kV synchronous motor feeder breakers of the High Lift Pumping Units to function as the feeder protective device to the new VFD’s, (d) modify the synchronous motors controls, exciter assembly, exciter controls or other equipment/devices per the new VFD system requirements, (e) provide the capability to remotely monitor and control the new VFD’s from the DWSD (PC-713 Ovation System) System Wide Monitoring and Control System and at each motor’s local monitoring and control workstation.
In addition the design work included all civil, architectural, structural, electrical, instrumentation, control, testing and ancillary work necessary, to provide a complete and fully functional System.