KVA
Apparent, True Applied and Reactive Power
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Total electrical power consumption depends on real power - electrical energy consumption, and reactive power - imaginary power consumption, and can be expressed (power triangle or Pythagorean relationship) as
Wapparent = ( Wtrue applied2 + Wreactive2 )1/2 (1)
where
Wapparent = apparent total power (Kilovolt Amps)
Wtrue applied = true applied power (Kilowatts)
Wreactive = reactive inductive power (Kilovolt Amps reactive)
Reactive Inductive Power
Reactive Power - Wreactive - is measured in volt-amperes reactive (VAR) and is the power stored in and discharged by the inductive motors, transformers or solenoids.
Reactive power required by inductive loads increases the amount of apparent power - measured in kilovolt amps (kVA) - in the distribution system. Increasing the reactive and apparent power causes the power factor - PF - to decrease.
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Related Topics
- Electrical - Amps and electrical wiring, AWG - wire gauge, electrical formulas, motors and units
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Related Documents
- Power Factor for a Three-Phase Electrical Motor - Power Factor definition for a three-phase electrical motor
- Three Phase Power Equations - Electrical 3-phase equations
