Calculator
Use the calculator to find the line current by entering the total phase current (amps).
What is Line Current?
The term ‘Line Current’ refers to the current that flows through a 3-phase electrical system and is the same across all three lines in a star connection. It is determined using the phase current & the system’s configuration.
How to calculate the Line Current?
In balanced Delta (Δ) circuits, line voltage equals phase voltage, and line current equals phase current multiplied by the square root of three.
Line Current Formula
The line current, IL in amps, is equal to the root three times the phase current, IP in amps.
For the purpose of calculating the Line Current, the following formula is utilized.
IL = IP x √3
IL = IP x 1.732
Where
IL – Line Current (Amps)
IP -Total Phase Current (Amps)
Solved Example
If the phase current of the delta-connected system is 300 Amps, what is the line current of the system?
IL = IP x 1.732
IL = 300 x 1.732
IL = 519.60 Amps
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