If the synchronize light goes out while two generators run in parallel, what action is taken?

If the synchronize light goes out while two generators run in parallel, what action is taken?

• A. Close the breaker
• B. Open the breaker
• C. Increase fuel supply
• D. Adjust voltage

Answer: (A)

When two generators are running in parallel, the synchronize indicator shows when their voltages, frequency, and phase are aligned so they can share the load on the same bus. If that synchronize signal goes out, the correct action is to close the breaker to re-establish the paralleling connection and allow the generators to continue sharing the load safely. Opening the breaker would just disconnect them and disrupt parallel operation. Increasing fuel or adjusting voltage aren’t immediate corrective steps for reestablishing a safe, in-sync parallel connection.

When two generators are running in parallel, the synchronize indicator shows when their voltages, frequency, and phase are aligned so they can share the load on the same bus. If that synchronize signal goes out, the correct action is to close the breaker to re-establish the paralleling connection and allow the generators to continue sharing the load safely. Opening the breaker would just disconnect them and disrupt parallel operation. Increasing fuel or adjusting voltage aren’t immediate corrective steps for reestablishing a safe, in-sync parallel connection.