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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /1418/CH26/EX26.14/EX26_14.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '1418/CH26/EX26.14/EX26_14.sce')
| -rw-r--r-- | 1418/CH26/EX26.14/EX26_14.sce | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/1418/CH26/EX26.14/EX26_14.sce b/1418/CH26/EX26.14/EX26_14.sce new file mode 100644 index 000000000..6610d9966 --- /dev/null +++ b/1418/CH26/EX26.14/EX26_14.sce @@ -0,0 +1,54 @@ +//EXAMPLE 26_14
+//COMPOUND GENERATOR
+
+clc;
+funcprot(0);
+
+//Variable Initialisation
+V=120;.............//Terminal voltage in Volts
+Rsh=25;............//Resistance of shunt field in Ohms
+Ra=0.06;...........//Resistance of armature in Ohms
+Rse=0.04;.........//Resistance of series field in Ohms
+I=100;.............//Load current in Amperes
+Rd=0.1;.............//Diverter resistance in Ohms
+
+//Induced EMF when the machine is connected as long shunt
+Ish=V/Rsh;..........//Current through shunt field in Amperes
+Ia=I+Ish;...........//Armature current in Amperes
+disp(Ia,"Armature current in Amperes if the machine is connected as long shunt:");
+Vse=Ia*Rse;.........//Voltage drop in series winding in Volts
+y=round(Vse*100)/100;......//Rounding of decimal places
+Va=Ia*Ra;...........//Armature voltage drop in Volts
+y1=round(Va*100)/100;.......//Rounding of decimal places
+E=V+Va+Vse;.............//Induced EMF in Volts
+y2=round(E*10)/10;.......//Rounding of decimal places
+disp(y2,"Induced EMF in Volts if the machine is connected as long shunt:");
+
+//Induced EMF when the machine is connected as short shunt
+Vse=I*Rse;.........//Voltage drop in series winding in Volts
+Vsh=V+Vse;...........//Armature voltage drop in Volts
+Ish=Vsh/Rsh;..........//Current through shunt field in Amperes
+y3=round(Ish);
+Ia1=I+Ish;.............//Armature current in Amperes
+y3=round(Ia1);..........//Rounding of decimal places
+disp(y3,"Armature current in Amperes if the machine is connected as short shunt:");
+Va=y3*Ra;..............//Armature voltage drop in Volts
+E1=V+Va+Vse;...........//Induced EMF in Volts
+disp(E1,"Induced EMF in Volts if the machine is connected as short shunt:");
+
+//Diverted connected in parallel with the series winding
+Ised=Ia*Rd/(Rd+Rse);....................//Current through series windin when diverter is connected in parallel in Amperes
+y4=round(Ised*100)/100;...................//Rounding of decimal places
+
+if y4<Ia then printf("Series field current has decreased from %0.2f A to %0.2f A",Ia,y4);
+ printf("\nChange in series field ampere-turns would be the same as the change in the field current");
+else
+ printf("Series field current has increased from %0.2f A to %0.2f A",Ia,y4);
+ printf("\nChange in series field ampere-turns would be the same as the change in the field current");
+end
+
+x=(y4-Ia)*100/Ia;.....................//Percentage decrease in series field ampere-turns
+y5=round(x*10)/10;....................//Rounding of decimal places
+printf("\nPercentage decrease in series field ampere-turns: %0.2f ",y5);
+
+
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