diff options
Diffstat (limited to '2231/CH4/EX4.3/Ex_4_3.sce')
| -rwxr-xr-x | 2231/CH4/EX4.3/Ex_4_3.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/2231/CH4/EX4.3/Ex_4_3.sce b/2231/CH4/EX4.3/Ex_4_3.sce new file mode 100755 index 000000000..023540dfd --- /dev/null +++ b/2231/CH4/EX4.3/Ex_4_3.sce @@ -0,0 +1,22 @@ +//Example 4_3
+clc;
+clear;close;
+
+//Given data:
+N=800;//rpm
+I=20;//A
+Ra=0.5;//ohm
+Vs=240;//V
+Ndash=600;//rpm
+
+//Solution :
+Eb_800=Vs-I*Ra;//V
+Eb_600=Eb_800*Ndash/N;//V
+Vav=I*Ra+Eb_600;//V
+alfa=Vav/Vs;//duty cycle
+disp(alfa,"(a) Duty cycle");
+//Torque reduced to half will reduce I to half
+I=I/2;//A
+Vav=I*Ra+Eb_600;//V
+alfa=Vav/Vs;//duty cycle
+disp(alfa,"(b) Duty cycle");
|