Systems and methods for routing sampled values upon loss of primary measurement equipment

A system for providing electric power system signals to intelligent electronic devices (IEDs), comprising:

• a first measurement device to obtain measurement data from a first portion of the electric power delivery system;
• a second measurement device to obtain measurement data from a second portion of the electric power delivery system;
• a first IED to monitor the first portion of the electric power delivery system based on measurement data associated with the first portion of the electric power delivery system;
• a second IED to monitor the second portion of the electric power delivery system based on measurement data associated with the second portion of the electric power delivery system;
• a supervisory coordination device to determine a state of coordination of the first and second portions of the electric power delivery system as either a coordinated state with the first and second measurement devices capturing coordinated measurement data, or an uncoordinated state with the first and second measurement devices capturing uncoordinated measurement data;
• and
• a sampled values (SV) communicator to:
• in a default state, route measurement data from the first measurement device to the first IED, and route measurement data from the second measurement device to the second IED, and
• upon failure to receive measurement data from the first measurement device when the first and second portions are in a coordinated state, route measurement data from the second measurement device to the first IED and to the second IED.

A method of providing electric power system signals from merging units to intelligent electronic devices (IEDs), comprising:

• obtaining electrical signals from a first portion of an electric power delivery system using a first merging unit;
• creating digitized electrical signals from the obtained electrical signals from the first portion of the electric power delivery system by the first merging unit;
• communicating the digitized electrical signals from the first portion of the electric power delivery system to a communication system;
• obtaining electrical signals from a second portion of the electric power delivery system using a second merging unit;
• creating digitized electrical signals from the second portion of the electric power delivery system by the second merging unit;
• communicating the digitized electrical signals from the obtained electrical signals from the second portion of the electric power delivery system to the communication system;
• communicating the digitized electrical signals from the first portion of the electrical power system to a first IED by the communication system;
• communicating the digitized electrical signals from the second portion of the electrical power system to a second IED by the communication system;
• the communication system determining a failure of the first merging unit to provide the digital electrical signals from the first portion of the electric power delivery system to the communication system;
• and,
• communicating, upon failure of the first merging unit to provide the digitized electrical signals from the first portion of the electric power delivery system to the communication system, the digitized electrical signals from the second portion of the electrical power system to the first IED by the communication system.