Enhancing Distribution System Reliability: Telecontrol Automatic Reclosing (TAR) for Power Restoration in Distribution Grid

This paper examines the implementation of Telecontrol Automatic Reclosing (TAR) on sub-transmission feeder head breakers or reclosers, utilizing Schneider’s Advanced Distribution Management System (ADMS) version 3.7 to automatically close breakers/ reclosers within 60 seconds after a fault trip. TAR is implemented on single or multiple feeders in the grid, and the TAR profile can be customized based on various trigger combinations. The paper introduces FLISR and TAR applications in ADMS 3.7 and demonstrates that TAR can reduce customer duration of power loss and improve key reliability metrics, thereby enhancing the utility’s overall performance. TAR proves particularly advantageous during severe weather events, where multiple feeders may trip simultaneously. In such instances, TAR automates the reenergization process, allowing grid operators to focus on addressing other critical issues rather than manually managing each reclosure. The results underscore TAR’s potential to improve grid resilience, optimize outage management, and provide cost-effective solutions for utilities. By automating fault recovery and minimizing outage durations, TAR offers substantial operational benefits, particularly in mitigating the impacts of widespread disruptions caused by adverse weather conditions. This paper highlights the role of TAR in modernizing fault management systems, making it a valuable tool for utilities seeking to improve service continuity and grid reliability.