What are the locations of protective devices such as PMR known as?

The locations of protective devices, such as a Protective Relay Module (PMR), are known as coordination points. This terminology is used in power systems to refer to specific areas or instances where protective devices are deployed to ensure that the system operates safely and reliably. Coordination points are critical for monitoring and responding to fault conditions, as they determine how various protective devices interact, ensuring that when a fault occurs, it is isolated quickly and effectively without causing unnecessary outages to unaffected areas.

In an electrical system, the ability to coordinate protection devices is essential for maintaining the integrity of the power supply. This involves setting up devices to work in a way that prioritizes protection and minimizes disruption, which is a key aspect of system design. By understanding coordination points, linemen can ensure that the protective measures are functioning optimally to protect both equipment and personnel.