summaryrefslogtreecommitdiff
path: root/3472/CH46/EX46.1/Example46_1.sce
diff options
context:
space:
mode:
Diffstat (limited to '3472/CH46/EX46.1/Example46_1.sce')
-rw-r--r--3472/CH46/EX46.1/Example46_1.sce36
1 files changed, 36 insertions, 0 deletions
diff --git a/3472/CH46/EX46.1/Example46_1.sce b/3472/CH46/EX46.1/Example46_1.sce
new file mode 100644
index 000000000..0f9cd203d
--- /dev/null
+++ b/3472/CH46/EX46.1/Example46_1.sce
@@ -0,0 +1,36 @@
+// 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 8: BRAKING
+
+// EXAMPLE : 8.1 :
+// Page number 806
+clear ; clc ; close ; // Clear the work space and console
+
+// Given data
+V = 525.0 // Voltage of motor(V)
+I_1 = 50.0 // Current(A)
+T_1 = 216.0 // Torque(N-m)
+I_2 = 70.0 // Current(A)
+T_2 = 344.0 // Torque(N-m)
+I_3 = 80.0 // Current(A)
+T_3 = 422.0 // Torque(N-m)
+I_4 = 90.0 // Current(A)
+T_4 = 500.0 // Torque(N-m)
+V_m = 26.0 // Speed(kmph)
+R_b = 5.5 // Resistance of braking rheostat(ohm)
+R_m = 0.5 // Resistance of motor(ohm)
+
+// Calculations
+I = 75.0 // Current drawn at 26 kmph(A)
+back_emf = V-I*R_m // Back emf of the motor(V)
+R_t = R_b+R_m // Total resistance(ohm)
+I_del = back_emf/R_t // Current delivered(A)
+T_b = T_3*I_del/I_3 // Braking torque(N-m)
+
+// Results
+disp("PART IV - EXAMPLE : 8.1 : SOLUTION :-")
+printf("\nBraking torque = %.f N-m", T_b)