diff options
Diffstat (limited to '3640/CH4/EX4.1/Ex4_1.sce')
| -rw-r--r-- | 3640/CH4/EX4.1/Ex4_1.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/3640/CH4/EX4.1/Ex4_1.sce b/3640/CH4/EX4.1/Ex4_1.sce new file mode 100644 index 000000000..d698b5b36 --- /dev/null +++ b/3640/CH4/EX4.1/Ex4_1.sce @@ -0,0 +1,23 @@ +clc
+SCL=1000 //stator copper loss in watts
+V=460 //line voltage of induction motor in volts
+I=25 //line current of motor in amperes
+pf=0.85 //power factor of motor
+Pin=sqrt(3)*V*I*pf //ans may vary due to roundoff error
+mprintf("Pin=%fW\n",Pin)
+Pg=Pin-SCL //air gap power
+mprintf("Pg=%fW\n",Pg)//ans may vary due to roundoff error
+RCL=500 //rotor copper loss in watts
+Phe=800 //core loss in watts
+Pfw=250 //winding and friction loss in Watts
+PLL=200 //stray load loss in watts
+DMP=Pg-RCL ///developed mechanical power in watts
+mprintf("DMP=%fW\n",DMP)//ans may vary due to roundoff error
+Prot=Phe+Pfw+PLL //power loss in rotor in watts
+Pout=DMP-Prot
+mprintf("Pout=DMP-Prot=%fW\n",Pout)//ans may vary due to roundoff error
+mprintf("Horsepower=Pout/746=%fhp\n",Pout/746)//ans may vary due to roundoff error,conversion of watts to hp needs division by 746
+mprintf("η=Pout/Pin=%f\n",Pout/Pin)//ans may vary due to roundoff error
+
+
+
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