What is the first action a Transmission Operator must take when energizing a blacked-out area?

• A. Isolate the load
• B. Turn all voltage regulators to the manual position
• C. Contact the Regional Reliability Organization
• D. Close any capacitor banks which are open

Answer: (A)

In the context of restoring power to a blacked-out area, the first action a Transmission Operator should take is to isolate the load. This is crucial because isolating the load allows the operator to manage and control the power transfer processes more effectively without overwhelming the system. Ensuring that the load is isolated also helps to prevent damage to equipment and allows for a safer and more controlled re-energization process.

When an area is blacked out, the system is in a very vulnerable state. By isolating the load, the operator can assess the network, understand the loads that need to be served, and strategize on how to bring the system back online efficiently. It establishes a clear starting point for re-energizing, ensuring that the system can be gradually brought back into operation rather than risking a sudden surge that could lead to further outages or equipment failure.

In contrast, other actions such as turning voltage regulators to manual, contacting the Regional Reliability Organization, or closing capacitor banks might be necessary at different stages of the restoration process, but they do not address the immediate need to ensure safety and control during the re-energization of the blacked-out area.