1 files changed, 17 insertions, 0 deletions
diff --git a/3760/CH4/EX4.60/Ex4_60.sce b/3760/CH4/EX4.60/Ex4_60.sce
new file mode 100644
index 000000000..ad3872ab3
--- /dev/null
+++ b/3760/CH4/EX4.60/Ex4_60.sce
@@ -0,0 +1,17 @@
+clc;
+p=4000; // rated power of separately excited dc series motor
+v=230; // rated voltage of motor
+n=1000; // rated speed of motor
+e=260; // ac voltage supplied to motor through converter
+i=2; // current drawn at no load
+no=1100; // speed at no load
+ra=0.5; // armature resistance
+vd=2; // voltage drop in thyristor
+de=30; // firing angle delay
+ia=20; // rated armature current
+k=((((2*sqrt(2)*e)/%pi)-(i*ra)-vd)*60)/(2*%pi*no); // conatant term in formula of back EMf
+disp('case a');
+printf('Motor torque is %f Nm\n',k*ia);
+disp('case b');
+wm=((((2*sqrt(2)*e*cosd(de))/%pi)-vd)/k)-((ra*ia)/k);
+printf('Motor speed is %f rpm',ceil((wm*60)/(2*%pi)));