AC GENERATION ANALYSIS
Basic AC Theory
AC GENERATION ANALYSIS
Analysis of the AC power generation process and of the alternating current we use
in almost every aspect of our lives is necessary to better understand how AC
power is used in today’s technology.
EO 1.3
DEFINE the following terms in relation to AC
generation:
a.
Radians/second
b.
Hertz
c.
Period
EO 1.4
DEFINE effective value of an AC current relative to DC
current.
EO 1.5
Given a maximum value, CALCULATE the effective
(RMS) and average values of AC voltage.
EO 1.6
Given a diagram of two sine waves, DESCRIBE the
phase relationship between the two waves.
Effective Values
The output voltage of an AC generator can be expressed in two ways. One is graphically by use
of a sine wave (Figure 3). The second way is algebraically by the equation
e = Emax sin wt, which will be covered later in the text.
Figure 3 Voltage Sine Wave
ES-07
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