When notified of a change from a voltage control device, what is the time frame for the generator operator to act?

The generator operator is typically required to act within 30 minutes of being notified of a change from a voltage control device. This timeframe is critical to maintain system reliability and prevent voltage instability. Timely action allows the generator to adjust its output or take other necessary measures to support system voltage levels, ensuring that the grid remains stable and within operational limits.

This 30-minute window is generally consistent with operational protocols and standards set by the North American Electric Reliability Corporation (NERC), which emphasizes quick responses to changes in the system to avert potential issues such as voltage collapse or equipment damage. The ability to react promptly is crucial for maintaining the balance between supply and demand in the energy grid and ensuring the reliability of the overall system.