AVR stands for Automatic Voltage Regulator, a crucial component in electric generators that ensures a stable voltage output despite fluctuations in load or speed. Here's a simplified explanation of how it works:
Sensing: The AVR constantly monitors the generator's output voltage.
Comparison: It compares the actual output voltage to a reference voltage (usually set by the user or predetermined).
Error Detection: If there's a difference between the actual and reference voltages, it detects this as an error signal.
Adjustment: Based on the error signal, the AVR adjusts the generator's excitation current. This excitation current controls the magnetic field strength in the generator's rotor.
Voltage Regulation: By adjusting the excitation current, the AVR effectively regulates the output voltage. If the voltage is too low, it increases the excitation to boost it; if it's too high, it decreases the excitation to lower it.
Feedback Loop: This process continues in a feedback loop, where the AVR continuously adjusts the excitation to maintain a stable output voltage.
The AVR ensures that the generator maintains a steady voltage output, which is crucial for the proper functioning of electrical equipment connected to it. It's a vital component in ensuring the reliability and efficiency of the generator system.
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