In what scenario is immediate action required for a transmission outage?

Immediate action is required in the scenario of an equipment issue or tripping because these situations typically pose a direct threat to the reliability and safety of the electrical grid. When equipment malfunctions or trips, it can lead to unexpected outages, potential cascading failures, or even jeopardize the stability of the overall system if not addressed promptly. Timely intervention ensures that operational protocols are followed to restore service and mitigate risks.

In contrast, scheduled maintenance, weather-related outages, and planned upgrade adjustments are usually anticipated events that have defined procedures and timelines for handling. These scenarios often involve pre-planned strategies and communications that allow for a systematic response rather than the urgent and immediate action required during an unforeseen equipment failure.