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Power in Series R-C-L Circuit - h1011v3_78
Power in Parallel R-C-L Circuits - h1011v3_80
Electrical Science Volume 3 of 4
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Basic AC Power
POWER TRIANGLE
3.
pf
cos
q
q
arctan
X
R
cos
arctan
X
R
cos
arctan
16
8
cos(arctan(2))
cos(63.4°)
pf
0.45
4.
P
EIcos
q
(71.6)(4)(0.45)
P
128.9 watts
5.
Q
EIsin
q
(71.6)(4)(0.89)
Q
254.9 VAR
6.
S
EI
(71.6)(4)
S
286.4 VA
Rev. 0
Page 13
ES-09
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