EngiRef / Formulas

Real Power (AC)

Actual power consumed in AC circuit

AC Circuits

Source Details

Id

elec-real-power

Name

Real Power (AC)

Discipline

electrical

Category

AC Circuits

Latex

P = VI\cos(\phi)

Description

Actual power consumed in AC circuit

Conditions

Single-phase sinusoidal steady-state; V and I are RMS

Variables
[
  {
    "symbol": "P",
    "name": "Real Power",
    "unit": "W",
    "siUnit": "W"
  },
  {
    "symbol": "V",
    "name": "RMS Voltage",
    "unit": "V",
    "siUnit": "V"
  },
  {
    "symbol": "I",
    "name": "RMS Current",
    "unit": "A",
    "siUnit": "A"
  },
  {
    "symbol": "φ",
    "name": "Phase Angle",
    "unit": "°",
    "siUnit": "rad"
  }
]
Solve For

P, V, I

Tags

power, real, active, watt

Is Custom

false