Condition Based Maintenance of Gearbox Using Ferrographical Analysis
Ferrography technique is widely used for wear debris analysis present in the oil. A contamination and wear particle in lubricated oil gives trends of failure in future. Corrective remedies can be planned to avoid failure of the system. Alarms for normal, Marginal, Critical can be set using wear particle concentration (WPC). Percentage Large-scale particles (PLP) trend shows criticality of the system which can used to monitor the system. For said study a gearbox connected to three phase induction motor as input and a disk break as load. For varying load condition from no load to 5 Kgf/cm2 is used. A speed of 710 to 2400 rpm is used. As trend of WPC and PLP are within the limit. Further samples will be monitored and failure can be predicted.