diff options
| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3574/CH7/EX7.1/EX7_1.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
| download | Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.gz Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.tar.bz2 Scilab-TBC-Uploads-7f60ea012dd2524dae921a2a35adbf7ef21f2bb6.zip | |
initial commit / add all books
Diffstat (limited to '3574/CH7/EX7.1/EX7_1.sce')
| -rw-r--r-- | 3574/CH7/EX7.1/EX7_1.sce | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/3574/CH7/EX7.1/EX7_1.sce b/3574/CH7/EX7.1/EX7_1.sce new file mode 100644 index 000000000..a567446c0 --- /dev/null +++ b/3574/CH7/EX7.1/EX7_1.sce @@ -0,0 +1,31 @@ +// Example 7.1
+// Determine (a) Torque load on the shaft (b) Torque angle if the voltage
+// drops to 224V (c) Will the rotor pull out of synchronism?
+// Page No. 282
+
+clc;
+clear;
+close;
+
+// Given data
+f=60; // Frequency
+P=4; // Number of poles
+Pshaft=10; // Shaft power in hp
+V1=240; // Rated voltage
+V2=224; // New voltage
+phirel1=30; // Torque angle
+
+
+// (a) Torque load on the shaft
+ns=120*f/P; // speed of machine
+Trel=Pshaft*5252/ns;
+
+
+// (b) Torque angle if the voltage drops to 224V
+phirel2=asind((V1^2/V2^2)*sind(2*phirel1))/2
+
+// Display result on command window
+printf("\n Torque load on the shaft = %0.2f lb-ft ",Trel);
+printf("\n Torque angle if the voltage drops to 224V = %0.2f deg ",phirel2);
+printf("\n Because torque angle is less than 45 degree, \n the rotor will not pull out of synchronism ")
+
|