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Diffstat (limited to '3731/CH4/EX4.5/Ex4_5.sce')
| -rw-r--r-- | 3731/CH4/EX4.5/Ex4_5.sce | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/3731/CH4/EX4.5/Ex4_5.sce b/3731/CH4/EX4.5/Ex4_5.sce new file mode 100644 index 000000000..98e1856d5 --- /dev/null +++ b/3731/CH4/EX4.5/Ex4_5.sce @@ -0,0 +1,16 @@ +//Chapter 4: Selection of Motor Power Rating
+//Example 5
+clc;
+
+//Variable Initialization
+P=100 //Half hour rating of the motor
+Cr=80 //Heating time constant in minutes
+n=0.7 //Maximum efficiency at full load
+
+//Solution
+
+Pcu=n**2 //Coppper loss
+a=Pcu
+K=sqrt((1+a)/(1-%e**(-30/Cr))-a)
+Pco=P/K
+mprintf("Therefore the continuous rating is:%.2f kW",Pco)
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