Paper Machine Fan Pump Drives - Everett, Wash.
Fan pumps supply pulp and a large volume of water to the forming section of a tissue machine. General Construction Company replaced the drives, cabling and motors for three 600 Hp fan pumps. To minimize downtime, we installed and tested new 10,000 lb. Allen Bradley variable frequency drives, new 2,300 volt cabling, tachometer feedbacks and ControlNet interfaces, all while the machine remained in operation on the original system. When preparation was complete, the owner shut the machine down and we worked around the clock for three days to remove the original motors, install new 600 Hp motors and commission the system. After start up, we completed the project by demolishing the original drives and cabling.