initial commit / add all books

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diff --git a/3760/CH1/EX1.11/Ex1_11.sce b/3760/CH1/EX1.11/Ex1_11.sce
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+clc;

+p=10000; // rated output of transformer

+E1=2500; // primary side rated voltage

+E2=250; // secondary side rated voltage

+k=E2/E1; // turn's ratio

+// initialising results of open circuit results on l.v side

+Vo=250; //open circuit voltage

+Io=1.4; // no load current

+Po=105; // open circuit voltage

+// initialising the results of short circuit results on h.v side

+Vsc=104; // short circuit voltage

+Isc=8; // short circuit current

+Psc=320; // power dissipated

+theta=Po/(Vo*Io); // no load power factor

+Ic=Io*theta; // core less component of current

+Im=Io*sqrt(1-theta^2); // magnetising component of current

+Ro=round(Vo/Ic); // shunt branch resistance

+Xo=round(Vo/Im); // shunt branch impedance

+Zsc=Vsc/Isc; // short circuit impedance

+reh=Psc/Isc^2; // total transformer resistance

+xeh=sqrt(Zsc^2-reh^2); // total transformer leakage impedance

+// equivalent circuit referred to l.v side

+rel=reh*k^2;

+xml=xeh*k^2;

+printf('shunt branch resistance and reactance is %f ohm and %f ohm\n',Ro,Xo);

+printf('value of transformer resistance and leakage reactance referred to l.v side is %f ohm and %f ohm\n',rel,xml);

+// equivalent circuit referred to h.v side

+Rch=Ro/k^2;

+Xmh=Xo/k^2;

+printf('shunt branch resistance and reactance referred to h.v side is %f ohm and %f ohm\n',Rch,Xmh);

+printf('value of transformer resistance and leakage reactance referred to h.v side is %f ohm and %f ohm\n',reh,xeh);