你可能感兴趣的试题
slightly less than the oncoming generator frequency the same as the bus frequency slightly greater than the bus frequency the same as the bus voltage
Frequency meter Ammeter Voltmeter All of the above
Right Wrong Not mentioned
rheostat governor exciter capacitor
Right Wrong Not mentioned
Right Wrong Not mentioned
Right Wrong Not mentioned
Right Wrong Not mentioned
Right Wrong Not mentioned
Right Wrong Not mentioned
slightly less than the line frequency the same as the line frequency slightly greater than the line frequency All of the above
frequency number of phases phase rotation All of the above
higher than the bus frequency lower than the bus frequency the same as the bus frequency but out of phase with it the same as the bus frequency and the circuit breaker may be closed at any pointerposition
increase the field excitation decrease the field excitation increase the number of magnetic poles increase the speed of the prime mover
Frequency meter Ohmmeter Induction voltage regulator Current transformer governor
phase angle frequency wave form half mode
Right Wrong Not mentioned
higher than the bus frequency lower than the bus freouencv the same as the bus frequency but out of phase with it the same as the bus frequency, and the circuit breaker may be closed at any pointerposition
Right Wrong Not mentioned
Right Wrong Not mentioned
湘公网安备 43130202000226号