Basic AC Power
Given an AC single-phase or three-phase circuit, DESCRIBE the power characteristics
in the circuit.
DESCRIBE the relationship between apparent, true, and reactive power by definition
or by using a power triangle.
DEFINE power factor as it relates to true power and apparent power.
Given the necessary values for voltage (E), resistance (R), reactance (X), impedance
(Z), and/or current (I), CALCULATE the following power components for an AC
True power (P)
Apparent power (S)
Reactive power (Q)
Power factor (pf)
DEFINE the following terms:
Leading power factor
Lagging power factor
STATE the reasons that three-phase power systems are used in the industry.
Given values for current, voltage, and power factor in a three-phase system,
CALCULATE the following:
Given a diagram of a wye- or delta-connected three-phase system, DESCRIBE the
voltage/current relationships of the circuit.
STATE the indications of an unbalanced load in a three-phase power system.