ENE 104 Electric Circuit Theory - staff.kmutt.ac.th - kmutt
ENE 104 Electric Circuit Theory - staff.kmutt.ac.th - kmutt
ENE 104 Electric Circuit Theory - staff.kmutt.ac.th - kmutt
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<strong>ENE</strong> <strong>104</strong><br />
AC <strong>Circuit</strong> Power Analysis<br />
Week #11<br />
Example:<br />
S 1 =<br />
50<br />
36.9<br />
0.8<br />
To <strong>ac</strong>hieve a PF of 0.95, <strong>th</strong>e total complex power<br />
must become:<br />
S<br />
50 1<br />
<br />
0.95<br />
50 <br />
cos<br />
j16.<br />
43<br />
Thus <strong>th</strong>e corrective load is<br />
<br />
50<br />
<br />
(0.95)<br />
kVA<br />
j37.<br />
5<br />
kVA<br />
Page 60<br />
S 2 =<br />
<br />
j21.<br />
07<br />
kVA