The advantages of continuous monitoring of power line carrier (PLC) channels applied to protection systems

The critical nature of the power transmission system today makes it imperative that utilities keep up with the demand of routine maintenance of the protection system, as well as, monitoring the health of the system. In this manner, the reliability of the system can be assured. This paper will describe methods by which the system can be monitored and how the data can be used to predict the need for maintenance before system failure occurs.