What is the operational focus of Constant Frequency Control mode?

In Constant Frequency Control mode, the primary goal is to maintain the electric grid frequency within defined limits. This is crucial because the stability of the power system is closely linked to frequency. If the grid frequency deviates from its nominal value, it can lead to various issues, such as equipment damage, generator instability, or even blackouts.

Maintaining frequency requires a dynamic response to changes in load and generation. Automatic generation control (AGC) systems typically facilitate this by adjusting the output of generators based on real-time frequency measurements and grid conditions. This helps ensure that supply matches demand, keeping the frequency stable and reliable.

The other options, while related to transmission operations, do not represent the primary focus of Constant Frequency Control mode. For example, adjusting interchange schedules focuses more on trade agreements and work between different areas, while maximizing generator output and minimizing transmission losses are more about operational efficiency and resource management rather than directly managing grid frequency.