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Capacitive Reactance Summary |
Basic AC Reactive Components
CAPACITANCE
where
I = effective current (A)
E = effective voltage across the capacitive reactance (V)
XC = capacitive reactance (W)
Example:
A 10µF capacitor is connected to a 120V, 60Hz power source (see Figure 4).
Find the capacitive reactance and the current flowing in the circuit. Draw the
phasor diagram.
Figure 4 Circuit and Phasor Diagram
Solution:
1.
Capacitive reactance
XC
1,000,000
2pfC
1,000,000
(2)(3.14)(60)(10)
1,000,000
3768
XC
265.4W
Rev. 0
Page 7
ES-08
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