After an Operating Security Limits violation is resolved, which Interchange Transactions should be re-established?

The correct answer emphasizes the importance of re-establishing Interchange Transactions based on their Transmission Service Priority. When an Operating Security Limits violation occurs, certain transactions may need to be curtailed to ensure the reliability of the grid. Once the violation is resolved, it is crucial to restore those transactions that have the highest priority first, as these typically correspond to the most critical demands for electricity flow and operational needs.

Transmission Service Priority is established to ensure that limits in the network are respected while minimizing the impact on overall service delivery. By prioritizing those transactions that have the highest priority, the system can efficiently and effectively return to normal operations, ensuring that reliability is maintained and that essential services are restored first. This method not only adheres to established protocols but also aligns with best practices in the management of electricity interchange, thus enhancing reliability in the transmission network.