Question:
Which of the following options is/are correct for the Automatic Generation Control (AGC) and Automatic Voltage Regulator (AVR) installed with synchronous generators?
Which of the following options is/are correct for the Automatic Generation Control (AGC) and Automatic Voltage Regulator (AVR) installed with synchronous generators?
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AGC primarily controls the frequency by adjusting mechanical power input, while AVR controls the terminal voltage by regulating field current.
Updated On: Jan 23, 2025
- AGC response has a local effect on frequency while AVR response has a global effect on voltage.
- AGC response has a global effect on frequency while AVR response has a local effect on voltage.
- AGC regulates the field current of the synchronous generator while AVR regulates the generator's mechanical power input.
- AGC regulates the generator's mechanical power input while AVR regulates the field current of the synchronous generator.
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The Correct Option is B
Solution and Explanation
Step 1: Understand the function of AGC.
AGC is responsible for controlling the frequency of the power system, which affects the system globally.
Step 2: Understand the function of AVR. AVR is responsible for regulating the voltage locally by adjusting the field current of the synchronous generator.
Step 3: Analyze the options.
Option (2): Correct as AGC affects frequency globally and AVR affects voltage locally.
Option (4): Correct as AGC adjusts mechanical power input and AVR adjusts field current.
Step 2: Understand the function of AVR. AVR is responsible for regulating the voltage locally by adjusting the field current of the synchronous generator.
Step 3: Analyze the options.
Option (2): Correct as AGC affects frequency globally and AVR affects voltage locally.
Option (4): Correct as AGC adjusts mechanical power input and AVR adjusts field current.
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