On detection of a persistent overvoltage fault on an AC generator connected to the aircraft AC busbars, the on-board protection device opens:

Question

ATPL - Airline Transport Pilot license - Aircraft General Knowledge - Airframe, Systems, Powerplant - On detection of a persistent overvoltage fault on an AC generator connected to the aircraft AC busbars, the on-board protection device opens:

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The exciter breaker and the generator breaker.

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The generator breaker.

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The generator breaker and tie breaker.

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The Exciter Breaker, The Generator Breaker And Tie Breaker.

ATPL: On detection of a persistent overvoltage fault on an AC generator connected to the aircraft AC busbars, the on-board protection device opens:

Domanda 540, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license