A.V.R maintains the voltage of a generator when it is in island mode but when

A.V.R maintains the voltage of a generator when it is in
island mode but when the generator is synchronised with
grid it maintenance the P.F,how it happens please any body
explain it in detail.

Question Posted / shakeher33

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A.V.R maintains the voltage of a generator when it is in island mode but when the generator is syn..

Answer / sukant mohanty

in isjand condition the terminal voltage v is not constant, at that time avr maintain terminal v by increasing or decreasing exitation current. But in synchronised condition the terminal v get constant as the grid voltage, at that time the variable remains ICOS(THETA). So avr maintains p.f. at that time.

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A.V.R maintains the voltage of a generator when it is in island mode but when the generator is syn..

Answer / k.prakashchandra

After synchronising ,the voltage can be reset to obtain the
desired pf.Or you can change over to auto pf mode,
selecting the desired pf.AVR maintains the set voltage and
APF maitains the set pf

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