1 files changed, 26 insertions, 0 deletions
diff --git a/3835/CH8/EX8.12/Ex8_12.sce b/3835/CH8/EX8.12/Ex8_12.sce
new file mode 100644
index 000000000..36454f5db
--- /dev/null
+++ b/3835/CH8/EX8.12/Ex8_12.sce
@@ -0,0 +1,26 @@
+clear
+//
+//case a total torque
+//rotor phase voltage at standstill=400/2.25*3**0.5 =102.64v
+ns=1500 //calculated using formula as above
+e2=102.64
+r2=0.1
+s=0.04
+x2=1.2
+//t=(3*60*(e2**2)*(r2/s))/(2*3.14*1500*((0.1/0.04)**2)+(1.2)**2)
+t=65.41
+printf("\n t=65.41Nm")
+//case b
+N=1440 //calculated using same formula as above
+o=(2*3.14*N*t)/60
+//1 metric hp=735.5hp
+output=o/735.5
+printf("\n output= %0.1f  hp",output)
+//case c
+//condition for maximum torque is given by x2=r2/s
+tmax=(3*e2**2)/(5*3.14*2*1.2)
+printf("\n tmax= %0.1f  Nm",tmax)
+//case d
+s=r2/x2  //for max torque
+speed=(1-s)*1500
+printf("\n speed= %0.0f  rpm",speed)