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| 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 | |
| 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')
| -rw-r--r-- | 3574/CH7/EX7.1/EX7_1.png | bin | 0 -> 112269 bytes | |||
| -rw-r--r-- | 3574/CH7/EX7.1/EX7_1.sce | 31 | ||||
| -rw-r--r-- | 3574/CH7/EX7.2/EX7_2.png | bin | 0 -> 102309 bytes | |||
| -rw-r--r-- | 3574/CH7/EX7.2/EX7_2.sce | 32 | ||||
| -rw-r--r-- | 3574/CH7/EX7.3/EX7_3.png | bin | 0 -> 93351 bytes | |||
| -rw-r--r-- | 3574/CH7/EX7.3/EX7_3.sce | 24 |
6 files changed, 87 insertions, 0 deletions
diff --git a/3574/CH7/EX7.1/EX7_1.png b/3574/CH7/EX7.1/EX7_1.png Binary files differnew file mode 100644 index 000000000..db2043d17 --- /dev/null +++ b/3574/CH7/EX7.1/EX7_1.png 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 ")
+
diff --git a/3574/CH7/EX7.2/EX7_2.png b/3574/CH7/EX7.2/EX7_2.png Binary files differnew file mode 100644 index 000000000..71ebf0a53 --- /dev/null +++ b/3574/CH7/EX7.2/EX7_2.png diff --git a/3574/CH7/EX7.2/EX7_2.sce b/3574/CH7/EX7.2/EX7_2.sce new file mode 100644 index 000000000..fe64cb8a8 --- /dev/null +++ b/3574/CH7/EX7.2/EX7_2.sce @@ -0,0 +1,32 @@ +// Example 7.2
+// Determine (a) Resolution (b) Number of steps required for the rotor to make
+// 20.6 revolutions (c) Shaft speed if the stepping frequency is 1800 pulses/s
+// Page No. 287
+
+clc;
+clear;
+close;
+
+// Given data
+betaa=2; // Step angle
+theta=20.6; // Number of revolutions
+fp=1800; // Stepping frequency
+
+
+// (a) Resolution
+stepsperrev=360/betaa; // Speed of machine
+
+
+// (b) Number of steps required for the rotor to make 20.6 revolutions
+steps=theta*360/betaa;
+
+
+// (c) Shaft speed if the stepping frequency is 1800 pulses/s.
+n=betaa*fp/360;
+
+
+// Display result on command window
+printf("\n Resolution = %0.0f ",stepsperrev);
+printf("\n Number of steps required for the rotor to make 20.6 revolutions = %0.0f ",steps);
+printf("\n Shaft speed if the stepping frequency is 1800 pulses/s = %0.0f r/s ",n);
+
diff --git a/3574/CH7/EX7.3/EX7_3.png b/3574/CH7/EX7.3/EX7_3.png Binary files differnew file mode 100644 index 000000000..cbbf804ff --- /dev/null +++ b/3574/CH7/EX7.3/EX7_3.png diff --git a/3574/CH7/EX7.3/EX7_3.sce b/3574/CH7/EX7.3/EX7_3.sce new file mode 100644 index 000000000..35ca5aaba --- /dev/null +++ b/3574/CH7/EX7.3/EX7_3.sce @@ -0,0 +1,24 @@ +// Example 7.3
+// Determine (a) Synchronous speed (b) Rail speed assuming slip of 16.7%
+// Page No. 299
+
+clc;
+clear;
+close;
+
+// Given data
+f=50; // Frequency of machine
+tau=0.24; // Pole pitch
+s=0.167; // Slip
+
+// (a) The synchronous speed
+Us=2*tau*f;
+
+// (b) Rail speed assuming slip of 16.7 percent
+U=Us*(1-s);
+
+
+// Display result on command window
+printf("\n The synchronous speed = %0.0f m/s ",Us);
+printf("\n Rail speed assuming slip of 16.7 percent = %0.1f m/s ",U);
+
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