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Diffstat (limited to '608/CH22/EX22.07/22_07.sce')
-rwxr-xr-x | 608/CH22/EX22.07/22_07.sce | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/608/CH22/EX22.07/22_07.sce b/608/CH22/EX22.07/22_07.sce new file mode 100755 index 000000000..379b63e03 --- /dev/null +++ b/608/CH22/EX22.07/22_07.sce @@ -0,0 +1,19 @@ +//Problem 22.07: The frequency of the supply to the stator of an 8- pole induction motor is 50 Hz and the rotor frequency is 3 Hz. Determine (a) the slip, and (b) the rotor speed.
+
+//initializing the variables:
+p = 8/2; // number of pairs of poles
+f = 50; // in Hz
+fr = 3; // in Hz
+
+//calculation:
+//ns is the synchronous speed, f is the frequency in hertz of the supply to the stator and p is the number of pairs of poles.
+ns = f/p
+//fr = s*f
+s = (fr/f)
+//the rotor speed.
+nr = ns*(1 - s)
+nrrpm = nr*60
+
+printf("\n\n Result \n\n")
+printf("\n(a) slip is %.0f percent",s*100)
+printf("\n (b) rotor speed is %.0f rev/min",nrrpm)
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