Current Calculator
This tool calculates the full-load current based on power, voltage, phase type, and power factor. It is designed to help you quickly find the current values needed for electrical system design and protection.
Calculation Parameters:
- Power: Enter the total power (in kW, hp, VA, kVA and MVA) of the electrical load.
- Power Option: Select the unit of measurement for the power input.
- Voltage: Specify the operating voltage of the system.
- Phase: Choose between single-phase, three-phase, or DC operation.
- Power Factor (PF): For AC systems, if applicable, enter the power factor to account for real power usage.
Full Load Current for 3 Phase AC Supply
The full load current for a three-phase AC load in kW can be calculated using the following formula:
\[I = \frac{1000 \cdot P}{\sqrt{3} \cdot V \cdot pf}\]The full load current for a three-phase AC load in kVA can be calculated using the following formula:
\[I = \frac{1000 \cdot S}{\sqrt{3} \cdot V}\]The full load current for a three-phase AC load in hp can be calculated using the following formula:
\[I = \frac{745.7 \cdot P}{\sqrt{3} \cdot V \cdot pf}\]Full Load Current for Single Phase AC Supply
The full load current for a single-phase AC load in kW can be calculated using the following formula:
\[I = \frac{1000 \cdot P}{V \cdot pf}\]The full load current for a single-phase AC load in kVA can be calculated using the following formula:
\[I = \frac{1000 \cdot S}{V}\]The full load current for a single-phase AC load in hp can be calculated using the following formula:
\[I = \frac{745.7 \cdot P}{V \cdot pf}\]Full Load Current for DC Supply
The full load current for a DC load in kW can be calculated using the following formula:
\[I = \frac{1000 \cdot P}{V}\]The full load current for a DC load in hp can be calculated using the following formula:
\[I = \frac{745.7 \cdot P}{V}\]