A high voltage transmission line trips and 70% of power flows through BA B. What should the Reliability Coordinator consider?

In the context of a high voltage transmission line tripping and 70% of the power flowing through Area B, the Reliability Coordinator must prioritize maintaining system reliability and stability. The key consideration here is the impact on the affected areas and their ability to manage the sudden change in power flow.

When a high voltage line trips, it can lead to an overload condition in the areas that are still connected, which in this case is primarily Area B. If Area B is experiencing an overload due to the increased power flow, the Coordinator needs to look at the interconnected areas—especially Area C— to determine whether additional load shedding is necessary to prevent cascading failures or maintain stability across the grid.

By choosing to shed load in Area C, the Reliability Coordinator can help alleviate pressure on Area B and ensure that the overall power system remains stable. This action can prevent further complications that might arise from relying solely on the power flow dynamics within Area B, which could lead to undue strain on generation resources or further transmission issues.

In contrast, the other options focus on Areas A and B, which are already impacted and may not provide the relief needed. An Energy Emergency Alert (EEA) could be considered as a precautionary measure but does not directly address the immediate action required to