ATPL: When a persistent underexcitation fault is detected on an AC generator connected to the aircraft mains with another AC generator, the protection device opens:
Domanda 328, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| The Generator Breaker And The Tie Breaker. |
| The tie breaker. |
| The generator control relay and the generator breaker. |
| The exciter control relay, the generator breaker and the tie breaker. |
