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AUTOMATED MONITORING OF SUBSTATION EQUIPMENT PERFORMANCE AND MAINTENANCE NEEDS USING SYNCHRONIZED SAMPLING

Monitoring of substation equipment performance and maintenance needs is typically met with test devices that are brought to a substation and data is collected manually. This paper introduces a new concept where this process is performed through an on-line data acquisition and processing solution. This is accomplished by utilizing substation automation systems for diagnostics and maintenance purposes in addition to their original task of monitoring, control and protection. This paper illustrates how the automation of data processing and analysis can be utilized to monitor equipment performance and indicated abnormalities. The use of Global Positioning System (GPS) synchronization enables very precise determination of various equipment actions leading to improved performance assessment capabilities. This solution is presently being developed and a staged field deployment plan at CenterPoint Energy (CNP) in Houston is underway.