Active power
Active Power
Active Power (pronunciation: /ˈæk.tɪv ˈpaʊ.ər/), also known as Real Power, is a term used in Physics and Electrical Engineering to describe the actual power in an electric circuit. The term originates from the Latin words 'actus', meaning 'a doing', and 'potentia', meaning 'power'.
Definition
Active Power is the real power consumed by the electrical equipment to do useful work. It is measured in Watts (W) or Kilowatts (kW). It is the product of the voltage (V), current (I), and the power factor (cosφ).
Calculation
The formula to calculate Active Power (P) is:
P = VIcosφ
Where:
Related Terms
- Reactive Power: The imaginary power in an AC circuit, measured in VAR.
- Apparent Power: The total power in an AC circuit, measured in VA.
- Power Factor: The ratio of the real power to the apparent power in a circuit.
See Also
External links
- Medical encyclopedia article on Active power
- Wikipedia's article - Active power
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