IEEE C37.104-2022
IEEE Guide for Automatic Reclosing on AC Distribution and Transmission Lines
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About This Item
IEEE C37.104-2022 is a technical standard for automatic reclosing on AC distribution and transmission lines. It addresses how reclosing practices are applied after temporary faults on power lines, helping engineers coordinate equipment behavior and system protection. By setting out a common guide for this function, it supports safer restoration, improved operating consistency, and better alignment between protection settings and line performance in power, energy, and related industrial applications.
About IEEE C37.104-2022
This guide focuses on automatic reclosing as used in AC line protection schemes, where circuit interruption may be followed by a controlled attempt to restore service. IEEE C37.104-2022 helps frame the technical considerations involved in that process, including when reclosing is appropriate and how it should fit within protection coordination. For utilities, designers, and maintenance teams, it provides a practical reference for selecting and applying reclosing practices with greater consistency and control.
Where is IEEE C37.104-2022 used?
The standard is commonly used in electric power systems that rely on distribution and transmission lines protected by relays, breakers, and related switching equipment. It is relevant in planning and operating substation protection schemes, line automation, and restoration procedures after temporary faults. IEEE C37.104-2022 is also useful when specifying equipment behavior for grid components that must coordinate reclosing timing, fault clearing, and service restoration across interconnected AC networks.
Importance in practice
In practice, this standard helps reduce uncertainty in how automatic reclosing is designed and applied. That matters for system reliability, because poorly coordinated reclosing can increase stress on equipment or create avoidable outages. IEEE C37.104-2022 supports clearer engineering decisions, more consistent procurement language, and more disciplined testing of protection functions. It is especially valuable where operating practices must balance restoration speed with fault persistence, equipment duty, and overall system safety.
- Automatic reclosing on AC lines
- Distribution and transmission applications
- Protection coordination and timing
- System restoration after temporary faults
- Relay and breaker application guidance
- Publication Date: 2022
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
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