1 files changed, 14 insertions, 0 deletions
diff --git a/3760/CH6/EX6.59/Ex6_59.sce b/3760/CH6/EX6.59/Ex6_59.sce
new file mode 100644
index 000000000..7490c790b
--- /dev/null
+++ b/3760/CH6/EX6.59/Ex6_59.sce
@@ -0,0 +1,14 @@
+clc;
+z=1.2+3*%i; // per phase standstill impedance
+v=400; // supply voltage
+l=500; // length of feeder line
+tr=30; // maximum percentage reduction possible in starting torque
+ro=0.02; // resistivity of feeder material
+// equating expression of starting torque with and without feeder we get a quadratic equation in R (feeder resistance) whose terms are
+t1=(1-(tr/100));
+t2=2*real(z)*t1; 
+t3=t1*abs(z)^2-abs(z)^2;
+p=[ t1 t2 t3 ];
+R=roots(p);
+A=(ro*l)/R(2);
+printf('Minimum allowable cross section is %f mm^2',A);