What standard governs the performance of a Coordination Study?

A Coordination Study is primarily governed by ANSI/IEEE Standard 242, which specifically addresses the coordination of protective devices in electrical systems. This standard outlines the principles and practices needed to ensure that protective devices operate selectively, meaning they will isolate only the faulty section of a system without disrupting the entire system's operation.

This standard is crucial for ensuring the safety and reliability of electrical systems by minimizing the impact of faults, allowing for quick restoration of service, and reducing equipment damage. It provides guidelines on determining the appropriate settings for protective devices and the coordination between them, thereby enhancing the overall stability of the electrical distribution network.

While other options like NFPA 70 (National Electric Code) relate to electrical installation and safety standards, and IEC 61850 deals with communication networks and systems for power utility automation, they do not specifically address the intricacies of performing Coordination Studies. ANSI/IEEE Standard 399, focusing on the reliability of power systems, offers valuable insights but does not provide the detailed coordination protocols that Standard 242 covers.