Aux 2 Unit 7 Quiz 3

Correct Answer:
C) The equipment may underperform or malfunction due to low voltage

Explanation:
Low voltage output can cause connected equipment to operate below its optimal performance, leading to potential malfunctions or inefficiency.

Correct Answer:
C) To protect connected electrical equipment and ensure stable power delivery

Explanation:
Stable voltage output is critical for preventing damage to connected equipment and maintaining reliable power delivery during varying load conditions.

Correct Answer:
B) To regulate the generator’s voltage output

Explanation:
An AVR automatically adjusts the excitation current to the generator's field winding, maintaining a consistent output voltage despite load variations.

Correct Answer:
C) The overall system voltage may fluctuate, leading to potential instability

Explanation:
A generator with insufficient AVR output can cause voltage instability in the power system, which can affect load-sharing stability and the overall performance of connected generators.

Correct Answer:
B) The generator’s output voltage will drop

Explanation:
If the AVR provides a low output, the excitation current to the field windings is reduced, resulting in a lower magnetic field strength and a drop in output voltage.

Correct Answer:
B) The other generator will compensate by supplying more reactive power

Explanation:
The generator with the functioning AVR will adjust to supply more reactive power to maintain system voltage, balancing the total reactive load of the system.

Correct Answer:
B) The generator with the faulty AVR will supply less reactive power

Explanation:
In parallel operation, a generator with low AVR output will supply less reactive power, which can lead to an imbalance in reactive load sharing between the generators.