In RUN position, which statement describes the generator's behavior?

In RUN position, which statement describes the generator's behavior?

• A. The ignition exciter is energized to maintain a spark.
• B. The starter relay energizes the motor windings in the starter-generator.
• C. The bus is disconnected from the generator.
• D. The output of the generator flows to the bus through the generator circuit breaker.

Answer: (D)

In RUN, the generator becomes the aircraft’s source of electrical power and its output is connected to the electrical bus through the generator circuit breaker. The circuit breaker is what links the generator to the bus, providing protection and the path for current to flow. The ignition exciter and starter motor windings are associated with starting the engine, not with normal RUN operation, and the bus being disconnected would cut off power to the loads, which isn’t the case when the generator is supplying the bus. So the correct description is that the generator’s output flows to the bus through the generator circuit breaker.

In RUN, the generator becomes the aircraft’s source of electrical power and its output is connected to the electrical bus through the generator circuit breaker. The circuit breaker is what links the generator to the bus, providing protection and the path for current to flow. The ignition exciter and starter motor windings are associated with starting the engine, not with normal RUN operation, and the bus being disconnected would cut off power to the loads, which isn’t the case when the generator is supplying the bus. So the correct description is that the generator’s output flows to the bus through the generator circuit breaker.