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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Apparent power and Power f<strong>ac</strong>tor:<br />
Page 49<br />
The sinusoidal voltage<br />
v<br />
V<br />
m<br />
cos( t<br />
)<br />
<strong>ENE</strong> <strong>104</strong><br />
is applied to <strong>th</strong>e network and <strong>th</strong>e resultant<br />
sinusoidal current is<br />
<strong>th</strong>e average power delivered to <strong>th</strong>e network<br />
P <br />
1<br />
V<br />
2<br />
m<br />
<strong>th</strong>e apparent power:<br />
I<br />
m<br />
<strong>th</strong>e power f<strong>ac</strong>tor:<br />
cos( <br />
i<br />
<br />
eff I eff<br />
I<br />
I eff eff<br />
AC <strong>Circuit</strong> Power Analysis<br />
m<br />
cos( t<br />
)<br />
)<br />
Veff<br />
Ieff<br />
cos( )<br />
V<br />
PF <br />
V P<br />
Week #11
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