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If the frequency bias setting is less negative than the frequency response of a Balancing Authority and a frequency decline is caused by a sudden loss of generation in an external balancing area, what will be the result?

A. The ACE will be a negative value and AGC will increase generation.
B. This will not affect the ACE.
C. The ACE will be a positive value and AGC will lower generation.
D. The ACE will be zero and will take no AGC action.

Answer :

Final answer:

The correct response is that the ACE will be a negative value and AGC will increase generation to correct the imbalance caused by a sudden loss of generation in an external balancing area, aiming to restore system frequency.

Explanation:

If the frequency bias setting is less negative than the frequency response of a Balancing Authority and a frequency decline is caused by a sudden loss of generation in an external balancing area, the result will be the ACE will be a negative value and AGC will increase generation. The Automatic Generation Control (AGC) system responds to the Area Control Error (ACE) signal to balance generation and load while maintaining the system frequency within acceptable limits. When the frequency decreases due to a loss of generation, the ACE becomes negative, prompting the AGC to initiate corrective action by increasing generation to restore balance and frequency to their desired levels.

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