Vh=2200;Vl=220;Pb=10000;
I=0.25;a=10;Z=10.4+%i*31.3;

Ib=Pb/Vh
 
Il=Pb/Vl
 
Zb=Vh/Ib
 
Zl=Vl/Il
  
Ih=I/Ib
  
Zeq=Z/Zb
 
Zeql=Z*(1/100)
 
Zpu=Zeql/Zl
 
Pcu=Ib^2*10.4
 
Ppu=Pcu/Pb