POWER TRIANGLE
Basic AC Power
5.
S
EI
(440)(2.3)
S
1012 VA
Power in Series R-C Circuit
Figure 6 Series R-C Circuit
Example: An 80 W Xc and a 60 W
resistance are in series with a
120V source, as shown in Figure
6.
Find: 1. Z
2. IT
3. pf
4. P
5. Q
6. S
Solution:
1.
Z
R2
X2C
602
802
3600
6400
Z
100 W
2.
IT
VT
Z
120
100
IT
1.2 amps
ES-09
Page 8
Rev. 0
