1,500 HP AC Motor Repair
1,500 HP AC Motor Repair This 1,500 HP, 1,200 RPM AC electric motor had been undergoing monthly vibration testing, and began showing marginal readings about six months before it ultimately failed. Bodine’s evaluation of the equipment indicated the failure was due to insulation degradation that ultimately caused a winding to short. The motor appeared to […]
Case Study: Vibration Analysis Finds Bad Bearing Fit
Case Study: Vibration Analysis Finds Bad Bearing Fit In 2014, a customer contacted Bodine after observing a noticeable increase in vibration in its coal crusher. The crusher’s hammer mill had recently been reconditioned elsewhere, and a rebuilt rotor and new bearings had been installed. After a short time in service, the vibration had increased to […]
Case Study: Oil Analysis Finds Imminent Bearing Failure
Case Study: Oil Analysis Finds Imminent Bearing Failure In early December 2013, Bodine performed an oil analysis and vibration analysis on a gear reducer for a 2,150 HP motor at a power plant. The vibration analysis indicated that the input bearing on the reducer was failing, but sufficient vibration history was not available to trend […]
Failure Analysis: Motor-Pump Unit Shaft
Failure Analysis: Motor-Pump Unit Shaft A sanitary plant customer brought this motor-pump unit in for repair in 2014. It had been used to move liquid before it failed. The shaft, which was shared between the motor and pump, had failed near the seal. Our observations included: A fair amount of corrosion on the surfaces of […]
Repairing AC Motor Covered in Corn
Repairing AC Motor Covered in Corn This 250 HP, 1,800 RPM AC electric motor failed as a result of inefficient cooling due to corn product buildup. The excessive thermal conditions resulted in insulation degradation and a grounded winding. Our observations of the damage included: The windings were burnt The lubrication in both bearings was degraded […]
Quick Turnaround On Motor Repair Helps New Customer
Quick Turnaround On Motor Repair Helps New Customer Bodine Electric is always ready to provide emergency electric motor repair services, and that proved out when a Saturday call came into our after-hours answering service in July 2021. A new customer — an ingredient manufacturer in North Carolina — had its production held up when a […]