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Diffstat (limited to '3640/CH1/EX1.1/Ex1_1.sce')
| -rw-r--r-- | 3640/CH1/EX1.1/Ex1_1.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3640/CH1/EX1.1/Ex1_1.sce b/3640/CH1/EX1.1/Ex1_1.sce new file mode 100644 index 000000000..65a480d9a --- /dev/null +++ b/3640/CH1/EX1.1/Ex1_1.sce @@ -0,0 +1,20 @@ +clc
+
+horsepower=2.5 //rating of induction motor in horsepower at half load
+Vl=230 //terminal voltage of motor in volts
+Il=7 //load current of motor in amperes
+pf=0.8 //power factor of the machine
+Pin=sqrt(3)*Vl*Il*pf //input power in watts
+mprintf("Pin=%f W\n",Pin)//The answer may vary due to roundoff error
+Whp=746 //watts per hp
+Pout=horsepower*Whp //output power in watts
+mprintf("Pout=% f W\n",Pout)
+mprintf("η=%f\n",Pout/Pin)//The answer may vary due to roundoff error //efficiency of the machine
+mprintf("Losses=Pin-Pout=%f W\n",Pin-Pout)//The answer may vary due to roundoff error //losses in the machine in watts
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