Amps to KW Calculator
627
Single Phase
Three Phase
Calculation Results (Single Phase)
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Calculation Results (Three Phase)
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Calculation Steps
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How This Calculator Works
This calculator converts current (Amps) to real power (KW) for both single-phase and three-phase electrical systems, taking power factor into account.
Key Concepts:
- Current (Amps): The flow of electric charge through a conductor
- Real Power (KW): The actual power consumed by the equipment (working power)
- Voltage (V): The electrical potential difference
- Power Factor: Ratio of real power to apparent power (0 to 1)
Formulas Used:
Single Phase:
$$ P_{(\mathrm{KW})} = \frac{I \times V \times PF}{1000} $$ Where:
P = Real Power in KW
I = Current in Amps
V = Voltage in Volts
PF = Power Factor
$$ P_{(\mathrm{KW})} = \frac{I \times V \times PF}{1000} $$ Where:
P = Real Power in KW
I = Current in Amps
V = Voltage in Volts
PF = Power Factor
Three Phase:
$$ P_{(\mathrm{KW})} = \frac{I \times V \times \sqrt{3} \times PF}{1000} $$ $${Where \sqrt{3}≈ 1.732}$$
$$ P_{(\mathrm{KW})} = \frac{I \times V \times \sqrt{3} \times PF}{1000} $$ $${Where \sqrt{3}≈ 1.732}$$
Example Calculation
Single Phase Example:
Given: 20 Amps at 230V with PF=0.85
$$ P = \frac{20 \times 230 \times 0.85}{1000} $$ $$ P = \frac{3910}{1000} $$ $$ P = 3.91 \text{ KW} $$
$$ P = \frac{20 \times 230 \times 0.85}{1000} $$ $$ P = \frac{3910}{1000} $$ $$ P = 3.91 \text{ KW} $$
Three Phase Example:
Given: 30 Amps at 400V with PF=0.9
$$ P = \frac{30 \times 400 \times \sqrt{3} \times 0.9}{1000} $$ $$ P = \frac{30 \times 400 \times 1.732 \times 0.9}{1000} $$ $$ P = 18.71 \text{ KW} $$
$$ P = \frac{30 \times 400 \times \sqrt{3} \times 0.9}{1000} $$ $$ P = \frac{30 \times 400 \times 1.732 \times 0.9}{1000} $$ $$ P = 18.71 \text{ KW} $$