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what is automatic voltage regulator and it is used?
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Answer Posted / basavaraj pujari
AVR is automatic voltage regulator which controls the terminal o/p voltage of the generator or alternator by controlling it's excitation current.morever avr responds this function within 1cycle and it control by 2modes manual mode and automatic mode.even avr used in transformer as a tap changer which fully control over the terminal voltage of transformer...
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