A Fan That Cannot Be Balanced
A power plant kept getting above normal levels of unbalance on a 5000 horsepower 720 RPM fan. They had made several attempts trying to balance the fan, all of which failed. It was then that they made the decision to call in Nelson Baxter who is the manager of Horner’s EMDS Division. Equipment: A 5000 HP 720 RPM fan at a Power Plant. Symptoms: Above normal levels of unbalance that resisted balance efforts. Several attempts were made to balance the fan, all of which were unsuccessful. Test Results: After attempting several balance shots in an I.D. fan, the casing vibration levels [...]
