Answer / nitin palaskar

because at 0.8 p.f. we can get min or zero regulation.
which can not get on the unity p.f.

Answer / roushan.eee

it is at .8 pf because if we run the alternator at full load it may burn due to overload. as there are losses and variation in load, the alternator is fixed at certain pf. above it, it will trip.

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