1 files changed, 40 insertions, 0 deletions
diff --git a/Working_Examples/2777/CH3/EX3.10/Ex3_10.sce b/Working_Examples/2777/CH3/EX3.10/Ex3_10.sce
new file mode 100755
index 0000000..c46e524
--- /dev/null
+++ b/Working_Examples/2777/CH3/EX3.10/Ex3_10.sce
@@ -0,0 +1,40 @@
+
+// ELECTRICAL MACHINES
+// R.K.Srivastava
+// First Impression 2011
+// CENGAGE LEARNING INDIA PVT. LTD 
+
+// CHAPTER : 3 : TRANSFORMERS 
+
+// EXAMPLE : 3.10
+
+clear ; clc ; close ; // Clear the work space and console
+
+
+// GIVEN DATA
+
+V1 = 440;                                       // HV Side Voltage Rating of the Transformer in Volts
+V2 = 220;                                       // LV Side Voltage Rating of the Transformer in Volts
+pf_o = 0.2;                                     // No-load Power factor lagging
+pf_l = 0.8;                                     // Load Power factor lagging
+I_o = 5;                                        // No-load current in Amphere
+I_2 = 120;                                      // Load current in Amphere
+
+// CALCULATIONS
+
+a = V1/V2;                                      // Turns ratio of the two winding Transformers
+theta_o = acosd(pf_o);                          // No load power factor of the two winding Transformers in Degrees
+Io = I_o * exp(-(%i*theta_o*%pi/180));          // No load current of the two winding Transformers (minus because lagging) in Amphere
+theta = acosd(pf_l);                            // load power factor of the two winding Transformers in Degrees
+I2 = I_2 * exp(-(%i*theta*%pi/180));            // secondary load current of the two winding Transformers (minus because lagging) in Amphere
+I21 = I2/a;                                     // Secondary referred to the primaryin Amphere
+I1 = Io + I21;                                  // Primary current in Amphere
+I1_mag = abs(I1);                               // Primary current magnitude inj Amphere
+theta_1 = atand( imag(I1),real(I1));            // Primary current angle in Degree
+
+
+// DISPLAY RESULTS
+
+disp("EXAMPLE : 3.10 : SOLUTION :-") ;
+printf("\n (a) Primary current , I1 = %.2f < %.1f A \n ",I1_mag,theta_1);
+