Redundancy in coupling power line carrier channels to the power line

This working group was formed in order to provide a report to the Relaying Communications Subcommittee on the redundancy of various coupling schemes in a power line carrier (PLC) based pilot protection system. Of particular interest, is when the protection is made up of two pilot schemes both of which use PLC for the protection channel. However, the information presented here is also applicable to redundancy within a single pilot protection environment.