what is automatic voltage regulator and it is used?
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Answer Posted / satish babu
AS teh name itself explains it regulates to the ref.
voltage,
a) In case of generator the Terminal Voltage is ref. & its
o/p is excitation voltage thereby regulating TV
b) In case of transformer the PT input is the ref. & Tap
changer is continuosly operated until the PT input is
regularised. In Both these cases AVR are used,
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