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authorprashantsinalkar2017-10-10 12:27:19 +0530
committerprashantsinalkar2017-10-10 12:27:19 +0530
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parentb1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff)
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+clc;
+v1=240; // high voltage side voltage
+v2=120; // low voltage side voltage
+f1=50; // frequency in Hz
+disp('v1 is directly proportional to product of frequency and maximum flux. considering q1 be maximum flux for v1 and q2 be maximum flux for v11 then Q=q2/q1 can be calculated as follow ')
+disp('case a')
+v11=240; // new supply voltage
+f2=40; // new supply frequency
+Q=(v11*f1)/(v1*f2);
+v22=(v2*f2*Q)/f1;
+printf('secondary voltage for case a is %f v\n',v22);
+disp('case b')
+v11=120; // new supply voltage
+f2=25; // new supply frequency
+Q=(v11*f1)/(v1*f2);
+v22=(v2*f2*Q)/f1;
+printf('secondary voltage for case a is %f v\n',v22);
+disp('case c')
+v11=120; // new supply voltage
+f2=50; // new supply frequency
+Q=(v11*f1)/(v1*f2);
+v22=(v2*f2*Q)/f1;
+printf('secondary voltage for case a is %f v\n',v22);
+disp('case d')
+v11=480; // new supply voltage
+f2=50; // new supply frequency
+Q=(v11*f1)/(v1*f2);
+v22=(v2*f2*Q)/f1;
+printf('secondary voltage for case a is %f v\n',v22);
+disp('case e')
+v11=240; // new supply voltage
+f2=0; // new supply frequency
+disp('since frequency is zero. Source is a DC source so a very high current will flow in primary side which will damage the transformer and the secondary induced emf is zero ')
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