I have a 3ph power system and i have all data in p.u. Sbase=100MVA Ubase= 131 kV, 33kV, 1kV So Zbase=Ubase^2/Sbase Ybase=1/Zbase I have doubts in Ibase=Sbase/Ubase ? Should be something like Ibase=Sbase/Ubase/sqrt(3) ??

Per unit transformation correct me if i am wrong!

6 Jun 2012

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I have a 3ph power system and i have all data in p.u.

Sbase=100MVA Ubase= 131 kV, 33kV, 1kV

Zbase=Ubase^2/Sbase

Ybase=1/Zbase

I have doubts in Ibase=Sbase/Ubase ?

Should be something like Ibase=Sbase/Ubase/sqrt(3) ??

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