Patent ID: 11949222
Assignee: SCHWEITZER ENGINEERING LABORATORIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 17:
18. A method for monitoring and protecting an electric power delivery system using a merging unit and an intelligent electronic device (IED), comprising:
the merging unit in electrical communication with the electric power delivery system sampling the electric power delivery system;
the merging unit determining a sample time offset value related to a latency between sampling the electric power delivery system and receipt of a communication from the merging unit to the IED;
the merging unit creating a communication packet that includes the sample and the sample time offset value;
the merging unit transmitting the communication packet to the IED;
the IED receiving the communication packet and transmitting a response to the merging unit;
the merging unit receiving the response and updating the sample time offset value; and
the IED aligning samples using the sample time offset value.