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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 /3472/CH39/EX39.25/Example39_25.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
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| -rw-r--r-- | 3472/CH39/EX39.25/Example39_25.sce | 30 |
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diff --git a/3472/CH39/EX39.25/Example39_25.sce b/3472/CH39/EX39.25/Example39_25.sce new file mode 100644 index 000000000..9af102b6f --- /dev/null +++ b/3472/CH39/EX39.25/Example39_25.sce @@ -0,0 +1,30 @@ +// A Texbook on POWER SYSTEM ENGINEERING
+// A.Chakrabarti, M.L.Soni, P.V.Gupta, U.S.Bhatnagar
+// DHANPAT RAI & Co.
+// SECOND EDITION
+
+// PART IV : UTILIZATION AND TRACTION
+// CHAPTER 1: INDUSTRIAL APPLICATIONS OF ELECTRIC MOTORS
+
+// EXAMPLE : 1.25 :
+// Page number 706-707
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+kW = 20.0 // Motor output(kW)
+theta_1 = 50.0 // Temperature rise not to be exceeded on overload(°C)
+t_1 = 1.0 // Time on overload(hour)
+theta_2 = 30.0 // Temperature rise on full-load(°C)
+t_2 = 1.0 // Time on full-load(hour)
+theta_3 = 40.0 // Temperature rise on full-load(°C)
+t_3 = 2.0 // Time on full-load(hour)
+
+// Calculations
+e_lambda = 1.0/3 // Obtained directly from textbook
+theta_f = theta_2/(1-e_lambda) // θ_f(°C)
+theta_f1 = theta_1/(1-e_lambda) // θ'_f(°C)
+P = (theta_f1/theta_f)**0.5*kW // Maximum overload that can be carried by the motor(kW)
+
+// Results
+disp("PART IV - EXAMPLE : 1.25 : SOLUTION :-")
+printf("\nMaximum overload that can be carried by the motor, P = %.1f kW", P)
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