what is "p.u." in electrical engg and what is the advantage of p.u. quantities?

what is "p.u." in electrical engg and what is the advantage of p.u. quantities?
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1 Answer

Answer :

Answer: p.u. stands for per unit (p.u=actual value/base value). Advantages:  wide variation of electrical parameters gets eliminated by p.u. representation  Since the p.u. impedances of any component remains the same on either side of a transformer, a power system can be analyzed on a single voltage level as the different voltage level vanishes.
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