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Motor Current Calculator

Formula

The formula to calculate the motor current (Im) is:

$Im = \frac{1000 \cdot P}{\sqrt{3} \cdot V \cdot EF \cdot PF}$

Where:

$Im$ is the motor current (amps).
$P$ is the power (kW).
$V$ is the voltage (volts).
$EF$ is the efficiency factor.
$PF$ is the power factor.

What is Motor Current?

Motor current is the amount of current drawn by an electric motor. It is crucial for determining the electrical load and ensuring the motor operates efficiently and safely.

Example

For example, if the power (P) is 10 kW, the voltage (V) is 400 V, the efficiency factor (EF) is 0.9, and the power factor (PF) is 0.8, the motor current (Im) can be calculated as follows:

$Im = \frac{1000 \times 10}{\sqrt{3} \times 400 \times 0.9 \times 0.8} \approx 20.09 \text{ A}$

So, the motor current for these values is approximately 20.09 A.