// Electric Machinery and Transformers // Irving L kosow // Prentice Hall of India // 2nd editiom // Chapter 14: TRANSFORMERS // Example 14-18 clear; clc; close; // Clear the work space and console. // Given data V_sc = 50 ; // Short circuit voltage in volt V_1 = 2300 ; // Rated primary voltage in volt // Calculations P_c = poly(0,'P_c');// Making P_c as a variable just for displaying answer as per // textbook P_c_sc = (V_sc / V_1)^2 * P_c ; // Fraction of P_c measured by the wattmeter // Display the results disp("Example 14-18 Solution : "); printf(" \n Since P_c is proportional to the square of the primary voltage V_sc, "); printf(" \n then under short circuit conditions,the fraction of rated-core loss is :"); printf(" \n P_c(sc) = ");disp(P_c_sc);