What frequency are the generators set to?

What frequency are the generators set to?

• A. 50.0
• B. 61.0
• C. 60.5
• D. 59.9

Answer: (C)

Generators are set to the frequency that matches the system they’re supplying, so equipment and loads stay in sync. In many grids, the standard is 60 Hz, so the generator is tuned close to that value. 60.5 Hz is the closest option to 60 Hz among the choices and reflects a small intentional overspeed to help keep the delivered frequency near 60 Hz under typical load changes and governor action. The other numbers either reflect a different standard (50 Hz) or are farther from 60 Hz, making them less suitable for normal North American electrical systems.

Generators are set to the frequency that matches the system they’re supplying, so equipment and loads stay in sync. In many grids, the standard is 60 Hz, so the generator is tuned close to that value. 60.5 Hz is the closest option to 60 Hz among the choices and reflects a small intentional overspeed to help keep the delivered frequency near 60 Hz under typical load changes and governor action. The other numbers either reflect a different standard (50 Hz) or are farther from 60 Hz, making them less suitable for normal North American electrical systems.