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Three-phase kW Formula:
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Three-phase power calculation is used to determine the real power (kW) in three-phase electrical systems. It considers voltage, current, and power factor to provide accurate power measurements for industrial and commercial applications.
The calculator uses the three-phase power formula:
Where:
Explanation: The formula calculates real power in kilowatts by accounting for the three-phase system characteristics and power factor efficiency.
Details: Accurate kW calculation is essential for electrical system design, load analysis, energy consumption monitoring, and equipment sizing in industrial and commercial settings.
Tips: Enter line-to-line voltage in volts, current in amps, and power factor (0-1). All values must be positive, with power factor between 0 and 1 inclusive.
Q1: What is power factor and why is it important?
A: Power factor represents the efficiency of power usage. A lower power factor indicates more reactive power and less efficient energy consumption.
Q2: What's the difference between single-phase and three-phase power?
A: Three-phase power provides more consistent power delivery and is more efficient for large loads, while single-phase is common in residential applications.
Q3: What are typical power factor values?
A: Power factor typically ranges from 0.7 to 1.0. Values closer to 1.0 indicate more efficient power usage.
Q4: When should I use this calculation?
A: Use for motor sizing, generator selection, electrical system design, and energy consumption analysis in three-phase systems.
Q5: How does voltage affect the power calculation?
A: Higher voltage with the same current results in higher power output. The relationship is directly proportional in the calculation.