Research on Equipment RCM Maintenance Strategy Based on Importance Assessment and Online Fault Monitoring

Reliability centered substation equipment maintenance is developed on the basis of condition-based maintenance or predictive maintenance based on equipment condition monitoring and fault diagnosis. The maintenance scheme and resource allocation are determined by distinguishing different operation states and different influence degrees of equipment to achieve the optimal balance between maintenance cost and power supply reliability. Through a series of decision-making bases, joint maintenance strategies including condition-based maintenance, periodic maintenance, hidden danger detection and post maintenance, as well as the determination of corresponding maintenance cycle, are adopted to improve the power supply reliability and reduce the equipment maintenance cost. This paper summarizes and expounds RCM(Reliability Centered Maintenance) step by step from the selection of reliability indicators, determination of target equipment for implementing RCM, definition of equipment failure mode and its failure diagnosis, maintenance mode decision to system maintenance optimization strategy.