Vibration monitoring instrumentation system for detecting airgap eccentricity in mine winder motor

摘要

Capital investment in the underground coal mines is increasing day by day, than any other industry, therefore coal production has to be very efficient to make commercially viable. In this condition the economics of production would primarily depend on machine utilization indicated by machine availability, hence machine available time should be maximized, for best returns on capital invested and utilization of power.This paper describes vibration monitoring instrumentation system for online monitoring of eccentricity in mine winder motor. The motor vibration is being sensed with the help of aaccelerometer and the vibration signal is conditioned using signal conditioners like low pass filter, high pass filter and band pass fdter. Airgap eccentricity in the mine winder will produce unbalance magnetic pull (UMP) in the mine winder motor.A novel condition monitoring instrumentation system based on motor vibration component has been developed for online condition monitoring of mine winder motor. The instrumentation system is able to diagnose the airgap eccentricity of mine winder motor, which increase the safety as well as availability of mine winder.