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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 /3760/CH4/EX4.66/Ex4_66.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3760/CH4/EX4.66/Ex4_66.sce')
| -rw-r--r-- | 3760/CH4/EX4.66/Ex4_66.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3760/CH4/EX4.66/Ex4_66.sce b/3760/CH4/EX4.66/Ex4_66.sce new file mode 100644 index 000000000..c54ec073a --- /dev/null +++ b/3760/CH4/EX4.66/Ex4_66.sce @@ -0,0 +1,16 @@ +clc;
+// answer is calculated for torque=30 but it is asked for torque=40 i.e why answer varies
+p=4; // number of dc series motor
+f=4*10^-3; // ratio of flux per pole to armature current
+T=40; // torque of fan
+n=1000; // speed of motor
+a=2; // number of parallel path for waave winding
+z=480; // number of conductors
+ra=1; // armature resistance
+v=230; // supply voltage
+re=sqrt((T*2*%pi*a)/(p*z*f*n^2)); // ratio of armature current and new speed
+// Ea=vt-ia*ra writing ia in terms of n solving for n (n is new speed)
+n2=v/(re+((p*f*z)/(60*a)));
+printf('Motor speed is %f rpm\n',n2);
+ia=re*n2;
+printf('Armature current is %f A',ia);
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