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Installations Oxnard Wastewater Oxnard, California John Carter, Project Manager Application: Motor running a vertical centrifugal raw sewage pump. The motor is on the drive floor and the pump is 24 feet below the motor on the dry well floor. Application Specifications: 50 HP, 885 RPM, 480 volts, motor connected to a centrifugal pump. Vertical Solid Shaft application. Problem: The motor was driven through a Variable Frequency Drive that required repair. Spare parts were not available and a new VFD would be costly. The facility experienced high harmonic power distortion despite a sophisticated filtering system. Motor floor noise was also a problem. MagnaDrive Solution: Replace a VFD with a 14.5 MagnaDrive ASD mounted between the drive shaft and the motor. The control system was modified to allow the MagnaDrive pump to match the previous process configuration. Customer Resolution: The MagnaDrive ASD provided equivalent process control and energy savings to the VFD. Electronic noise and harmonics were eliminated. Oxnard has an extensive harmonic monitoring program that verified a significant improvement after the MagnaDrive ASD was installed. Customer Comments: "Some of the benefits we didn't realize we would get until after the drive was operating. The pump has smoothed out a lot, and we used to get a lot of electronic noise in the motors from the VFDs. The MagnaDrive has made the whole pump station a lot quieter." John Carter, Project Manager [BACK] FAQ | Contact Us | Home Copyright © 2008 MagnaDrive Corporation, All Rights Reserved.