diff options
Diffstat (limited to '2192/CH3/EX3.6/3_6.sce')
| -rwxr-xr-x | 2192/CH3/EX3.6/3_6.sce | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/2192/CH3/EX3.6/3_6.sce b/2192/CH3/EX3.6/3_6.sce new file mode 100755 index 000000000..3920699f8 --- /dev/null +++ b/2192/CH3/EX3.6/3_6.sce @@ -0,0 +1,15 @@ +clc,clear
+printf('Example 3.6\n\n')
+
+P=4 //poles
+f=50 //frequency
+R= 0.25//resistance per phase of rotor
+
+N_1=1440 ; N_2 =1200 //initial and final speed
+N_s = 120*f/P //synchronous speed
+S_1= (N_s - N_1)/N_s //slip
+S_2 = (N_s - N_2)/N_s //slip after adding resistance to rotor circuit
+
+//S (prop.) R for constanct input power to rotor circuit
+r = R * (S_2/S_1) - R // external resistance per phase
+printf('External resistance to be added per phase = %.0f ohm',r)
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