What should be done if a generator frequency rises above 61.75 Hz?

When a generator frequency rises above 61.75 Hz, it is critical to trip the generator to ensure system stability and reliability. Maintaining frequency within a specific range (typically around 60 Hz for most power systems) is essential for the overall health of the power grid. An abnormal frequency rise can lead to several issues, including equipment damage or system collapse if not addressed promptly.

Tripping the generator helps to protect both the generator and the grid by reducing overloading conditions and returning the system to its nominal operating frequency. Keeping operations ongoing in this situation could risk exacerbating the problem, logging the information alone would not provide an immediate solution to the frequency issue, and simply increasing generation capacity could further escalate the frequency issue.

Therefore, tripping the generator serves as an immediate corrective action to stabilize the grid and prevent potential cascading failures.