diff options
Diffstat (limited to '1319/CH8/EX8.14')
-rw-r--r-- | 1319/CH8/EX8.14/8_14.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/1319/CH8/EX8.14/8_14.sce b/1319/CH8/EX8.14/8_14.sce new file mode 100644 index 000000000..85ec3cb21 --- /dev/null +++ b/1319/CH8/EX8.14/8_14.sce @@ -0,0 +1,18 @@ +//To determine the starting torque in terms of full load torque
+
+clc;
+clear;
+
+sfl=4/100;
+
+Rir=5; // Ratio of starting current to the full load current at rated voltage
+
+x=70.7/100; // Auto transformer tapping
+
+Rsd=((Rir)^2)*sfl/3; // Ratio of the starting load to full load torque for a star -delta starter
+
+Ra=((x*Rir)^2)*sfl; // Ratio of the starting load to full load torque for an 70.7% tapped auto transformer
+
+printf('The starting torque in terms of full load torque by \n')
+printf('i) Star-Delta starter = %g Tfl \n',Rsd)
+printf('ii) An auto-tranformer starter with 70.7 percent tapping = %g Tfl \n',Ra)
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