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what is AVR and tell principle and working?
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Answer Posted / nikhil
AVR is automatic voltage regulator.as the name shows it
regulate the output voltage of regulator. in fact it is a
card that sense the output voltage of a generator and a
signal is giving to an exciter (an exciter is an dc or ac
generator)and thus the excitation is giving to the rotor of
generator.hence it maintains the output voltage of generator
thereby it prevents the overload.
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