initial commit / add all books

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diff --git a/3784/CH6/EX6.1/Ex6_1.sce b/3784/CH6/EX6.1/Ex6_1.sce
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+clc

+//variable initialization

+Vm=415 //input of motor in volt

+F1=50 //supply frequency in hrtz

+F2=35 //supply frequency in hrtz

+F3=10 //supply frequency in hrtz

+N=1460 //speed of motor in rpm

+P=4 //number of poles 

+R1=0.65 //resistance of stator in ohm

+R2=0.35 //resistance of rotor in ohm

+X1=0.95 //reactance of Motor in ohm

+X2=1.43 //reactance of Motor in ohm

+Xm=28 //reactance of Motor in ohm

+

+

+

+//Solution

+V1ph=Vm/sqrt(3)

+Ns1=(120*F1)/P

+Wsm1=(2*%pi/60)*Ns1

+Sm1=R2/sqrt((R1^2)+(X1+X2)^2)//Slip for maximum torque

+Nr1=Ns1*(1-Sm1)

+Tm1=3*((V1ph)^2)/(2*Wsm1*(R1+sqrt((R1)^2+(X1+X2)^2)))

+

+V2ph=Vm/sqrt(3)

+X3=X1*(F2/F1)

+X4=X2*(F2/F1)

+Sm2=R2/sqrt((R1^2)+(X3+X4)^2)//Slip for maximum torque

+Ns2=(120*F2)/P

+Wsm2=(2*%pi/60)*Ns2

+Nr2=Ns2*(1-Sm2)

+Tm2=3*((V2ph*F2/F1)^2)/(2*Wsm2*(R1+sqrt((R1)^2+(X3+X4)^2)))

+

+V3ph=Vm/sqrt(3)

+X5=X1*(F3/F1)

+X6=X2*(F3/F1)

+Sm3=R2/(sqrt((R1^2)+((X5+X6)^2)))//Slip for maximum torque

+Ns3=(120*F3)/P

+Wsm3=(2*%pi/60)*Ns3

+Nr3=Ns3*(1-Sm3)

+Tm3=3*((V3ph*F3/F1)^2)/(2*Wsm3*(R1+sqrt((R1)^2+(X5+X6)^2)))

+printf('\n\n speed at which maximum torque occurs for 50 Hz=%0.1f rpm\n\n',Nr1)

+printf('\n\n maximum torque for 50 Hz=%0.1f N-m\n\n',Tm1)

+printf('\n\n speed at which maximum torque occurs for 35 Hz=%0.1f rpm\n\n',Nr2)

+printf('\n\n maximum torque for 35 Hz=%0.1f N-m\n\n',Tm2)

+printf('\n\n speed at which maximum torque occurs for 10 Hz=%0.1f rpm\n\n',Nr3)

+printf('\n\n maximum torque for 10 Hz=%0.1f N-m\n\n',Tm3)

+