What is the primary function of an emergency power-off (EPO) system in substations?

The primary function of an emergency power-off (EPO) system in substations is to safely disconnect power and mitigate hazards quickly. An EPO system is critical for ensuring the safety of personnel and equipment in emergency situations. In events such as equipment malfunctions, fires, or other hazards, the EPO provides a rapid means to cut off power to prevent injuries or further damage. This system is designed to be easily accessible and operable to allow immediate response in situations where every second counts.

In contrast, optimizing energy consumption during peak hours focuses on energy management strategies, which are not related to emergency situations but rather on improving efficiency. Scheduling maintenance without service interruption involves planning and timing to ensure that maintenance tasks can be done safely and effectively while still allowing the substation to function, which is a different aspect of operations. Improving communication between devices pertains to operational technology and control systems in substations, enhancing the overall management and coordination of various equipment but does not address immediate safety concerns or emergency responses.