Standards Publication

Basic Application Profile for Fault Location, Isolation, and Service Restoration in a Looped Single Line Feeder with Communications Loss

NEMA US 80061-2025 | Status: Active | ID: 2926898

Fault location, isolation, and service restoration (FLISR) includes automatic sectionalizing and
restoration, and automatic circuit reconfiguration. These applications accomplish distribution automation operations by coordinating the operation of field devices, software, and dedicated communication networks to automatically determine the location of a fault and rapidly reconfigure the flow of electricity so that some or all the customers can avoid experiencing outages. Because FLISR operations rely on rerouting power, they typically require feeder configurations that contain multiple paths to a single or multiple other substations. This creates redundancies in the power supply for customers located downstream or upstream of a downed power line, fault, or other grid disturbance.

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Published Date: May 5, 2025

Number of pages: 25

Staff Contact: Casey Granata

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Keywords

NEMA US 80061-2025, BASIC APPLICATION PROFILE FOR FAULT LOCATION, ISOLATION, AND SERVICE RESTORATION IN A LOOPED SINGLE LINE FEEDER WITH COMMUNICATIONS LOSS, NEMA US 80061, US 80061-2025, 80061