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Diffstat (limited to '1418/CH26/EX26.25/EX26_25.sce')
-rw-r--r-- | 1418/CH26/EX26.25/EX26_25.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/1418/CH26/EX26.25/EX26_25.sce b/1418/CH26/EX26.25/EX26_25.sce new file mode 100644 index 000000000..ab724dee9 --- /dev/null +++ b/1418/CH26/EX26.25/EX26_25.sce @@ -0,0 +1,26 @@ +//EXAMPLE 26.25
+//SHUNT GENERATOR
+
+clc;
+funcprot(0);
+
+//Variable Initialisation
+Ifl=196;....................//Full load current in Amperes
+V=220;.....................//Terminal voltage in Volts
+Ls=720;.....................//Stray losses in Watts
+Rsh=55;.....................//Shunt field coil resistance in Ohms
+efffl=88;....................//Full load efficiency in Percentage
+
+Po=V*Ifl;..................//Output power in Watts
+Pin=Po/(efffl/100);..............//Electrical input in Watts
+Lt=Pin-Po;.................//Total losses in Watts
+Ish=V/Rsh;.................//Shunt field current in Amperes
+Ia=Ifl+Ish;.................//Armature current in Amperes
+Lshcu=V*Ish;................//Shunt copper loss in Watts
+Lco=Ls+Lshcu;...............//Constant lossess in Watts
+Lca=Lt-Lco;..................//Armature copper loss in Watts
+Ra=Lca/(Ia^2);................//Armature resistance in Ohms
+disp(Ra,"Armature resistance in Ohms:");
+I=sqrt(Lco/Ra);...............//Load current for maximum efficiency in Amperes
+y=round(I*10)/10;
+disp(y,"Load current for maximum efficiency in Amperes:");
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