How is coordination defined in the context of overcurrent protection?

In the context of overcurrent protection, coordination refers to the arrangement of protective devices in such a way that only the device nearest to the fault will operate. This principle helps to isolate the faulted section of the electrical system while minimizing the impact on the rest of the system. By allowing only the closest protective device to respond, coordination enhances system reliability and safety, ensuring that unintentional outages are limited to a specific area rather than affecting broader circuits.

This method also aids in maintaining continuity of service for unaffected areas, ultimately leading to improved operational efficiency. Proper coordination analysis involves determining the right settings for the protective devices to ensure that they operate in a timed sequence based on their proximity to the fault, which is crucial for effective fault management in an electrical system.