EngiRef / Formulas
Three-Phase Power
Total power in three-phase system
AC Circuits
Source Details
Id
elec-three-phase-power
Name
Three-Phase Power
Discipline
electrical
Category
AC Circuits
Latex
P = \sqrt{3} V_L I_L \cos(\phi)
Description
Total power in three-phase system
Conditions
Balanced three-phase system
Variables
[
{
"symbol": "P",
"name": "Total Power",
"unit": "W",
"siUnit": "W"
},
{
"symbol": "Vₗ",
"name": "Line Voltage",
"unit": "V",
"siUnit": "V"
},
{
"symbol": "Iₗ",
"name": "Line Current",
"unit": "A",
"siUnit": "A"
},
{
"symbol": "φ",
"name": "Phase Angle",
"unit": "°",
"siUnit": "rad"
}
]Solve For
P, Vₗ, Iₗ
Tags
three-phase, power, line, voltage, current
Is Custom
false