initial commit / add all books

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diff --git a/3760/CH1/EX1.48/Ex1_48.sce b/3760/CH1/EX1.48/Ex1_48.sce
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+clc;

+P=400000; // rated KVA of transformer

+P1=11000; // rated primary voltage

+S2=6600; // rated secondary voltage

+v1=360; // voltage recorded during short circuit of l v winding for first transformer

+p1=3025; // power dissipated during short circuit of l v winding for first transformer

+v2=400; // voltage recorded during short circuit of l v winding for second transformer

+p2=3200; // power dissipated during short circuit of l v winding for second transformer

+v3=480; // voltage recorded during short circuit test of l v winding third transformer

+p3=3250; // power dissipated during short circuit of l v winding for third transformer

+l1=(P+(v1/v2)*P+(v1/v3)*P)/1000; 

+printf('The greatest load that can be put on the transformers is %f KVA\n',l1);

+is=P/S2; // secondary rated current

+// transformer 1 is fully loaded , its carries full load current

+re2=p1/is^2; // total resistance referred to secondary side

+vd=is*re2; // voltage drop for transformer 1

+E2=S2-vd; 

+printf('Secondary terminal voltage is %f v',E2);