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+// Electric Machinery and Transformers

+// Irving L kosow 

+// Prentice Hall of India

+// 2nd editiom

+

+// Chapter 8: AC DYNAMO TORQUE RELATIONS - SYNCHRONOUS MOTORS

+// Example 8-11

+

+clear; clc; close; // Clear the work space and console.

+

+// Given data

+S_conjugate = 1000 ; // Apparent complex power in kVA

+cos_theta = 0.6 ; // lagging PF

+sin_theta = sqrt( 1 - (cos_theta)^2 );

+

+// Calculations

+// case a

+P_o = S_conjugate * cos_theta ; // Active power dissipated by the load in kW

+

+// case b

+jQ_o = S_conjugate * sin_theta ; // Inductive reactive quadrature power - 

+// - drawn from and returned to the supply

+

+// Display the results

+

+disp("Example 8-11 Solution : ");

+printf(" \n a: Active power \n    P_o = %d kW \n ", P_o );

+

+printf(" \n b: Inductive reactive quadrature power \n    +jQ_o in kvar =  \n");disp(%i*jQ_o);

+

+printf(" \n c: The original power triangle is shown in Fig.8-26a.");