The formula to calculate the current in amps from power in kilowatts is:
For single-phase systems:
\[ I = \frac{P \times 1000}{V \times PF} \]
For three-phase systems:
\[ I = \frac{P \times 1000}{\sqrt{3} \times V \times PF} \]
Where:
Let's say the power (\( P \)) is 5 kW, the voltage (\( V \)) is 240 V, and the power factor (\( PF \)) is 0.8. For a single-phase system, using the formula:
\[ I = \frac{5 \times 1000}{240 \times 0.8} \]
We get:
\[ I = \frac{5000}{192} \approx 26.04 \, \text{A} \]
So, the current (\( I \)) is approximately 26.04 amps.
The kW to Amps conversion is used to determine the current in amps (A) from the power in kilowatts (kW) and voltage in volts (V). This conversion is essential in electrical engineering to ensure that circuits are designed with the correct current ratings.