diff options
Diffstat (limited to '1319/CH11/EX11.3')
| -rw-r--r-- | 1319/CH11/EX11.3/11_3.jpg | bin | 0 -> 128870 bytes | |||
| -rw-r--r-- | 1319/CH11/EX11.3/11_3.sce | 21 |
2 files changed, 21 insertions, 0 deletions
diff --git a/1319/CH11/EX11.3/11_3.jpg b/1319/CH11/EX11.3/11_3.jpg Binary files differnew file mode 100644 index 000000000..a032d2e23 --- /dev/null +++ b/1319/CH11/EX11.3/11_3.jpg diff --git a/1319/CH11/EX11.3/11_3.sce b/1319/CH11/EX11.3/11_3.sce new file mode 100644 index 000000000..3c1bf8e8a --- /dev/null +++ b/1319/CH11/EX11.3/11_3.sce @@ -0,0 +1,21 @@ +// Size of conductor to be used for wiring a 10 kW 400V 3 Phase induction motor
+
+clc;
+clear;
+
+P=10*(10^3); // Power Rating
+V=400; // Voltage Rating
+f=50;// Frequency of operation
+
+// Assumptions Made
+eff=85/100; // Efficiency
+pf=0.8// Power Factor
+
+I=P/(sqrt(3)*V*eff*pf); // Current flowing in the conductor
+
+Is=2*I; //At the time of starting the induction motor may take 2 times the rated current
+
+printf('The Rated Current = %g A\n\n',I)
+printf(' At the time of starting the induction motor may take\n 2 times the rated current and hence starting current = %g A \n\n',Is)
+
+printf(' From the table corresponding to 42.4 A that is 43 A\n the wire used is 7 /1. 7 mm or 16 mm^2.\n')
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