# Full Load Current Calculator

The full load current calculator calculates the full load current for 1-phase AC, 3-phase AC and DC loads in kW, kVA or hp. Includes step-by-step equations.

## See Also

- Motor current calculator
- Generator full load current calculator
- Transformer calculator -full load current and turns ratio

## Full Load Current Calculator Parameters

**Voltage (V):**- Specify the phase-to-phase V
_{LL}voltage for a 3-phase AC supply in volts. - Specify the the phase-to-neutral V
_{LN}voltage for a 1-phase AC or DC supply. - Select the phase arrangement: 1 Phase AC, 3 phase AC, or DC.

- Specify the phase-to-phase V
**Load (S):**Specify the the load in kW, kVA, A, or hp. And specify the load power factor (**pf**) (cosΦ) when the load is specified in kW or hp.

## Full load current calculation for a 3-phase AC supply:

The full load current for a 3-phase load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {\sqrt{3} \cdot V_{LL} \cdot \cos{\phi} }\)

Where:

**S**Is the rated power in kilowatt (kW)_{kW}:**V**Is the line-to-line (phase-to-phase) voltage in volts._{LL}:**cosΦ:**Is the load power factor.

The full load current for a 3-phase load in kVA is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {\sqrt{3} \cdot V_{LL} }\)

The full load current for a 3-phase load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {\sqrt{3} \cdot V_{LL} \cdot \cos{\phi} }\)

## Full load current calculation for a 1-phase AC supply:

The full load current for a 1-phase load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {V_{LN} \cdot \cos{\phi} }\)

**The full load current for a 1-phase load in kVA is calculated as:**

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {V_{LN} }\)

The full load current for a 1-phase load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {V_{LN} \cdot \cos{\phi} }\)

## Full load current calculation for a DC supply:

The full load current for a DC load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {V_{LN} }\)

The full load current for a DC load in kVA is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {V_{LN} }\)

The full load current for a DC load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {V_{LN} }\)

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