New Methods in Power Line Carrier Monitoring and Analysis Real-World Examples and Implications for Protection System Reliability

Abstract

Continuous monitoring devices for power line carrier protection channels provide robust data about the performance of PLC systems. This paper summarizes the significance of the monitoring device data and cites recent cases in its application and analysis. Field examples include remotely identifying failed PLC system components before a misoperation, various effects of capacitor banks, line trap monitoring, and more. A new method of event-based transient monitoring is also proposed. The potential for this type of data to improve PLC-based protection reliability is analyzed.