Three-Phase Electrical Calculator
Calculate three-phase electrical parameters including power, current, voltage, and power factor. Get precise calculations for industrial and commercial electrical systems.
Step 1: Electrical Parameters
Electrical Parameters
Three-phase systems are commonly used for industrial and commercial power distribution. Line-to-line voltage is typically 400V or 480V in most systems.
Step 2: Power Details
Three-Phase Power Formula
Three-phase power (P) = √3 × V × I × PF, where V is line-to-line voltage, I is line current, and PF is power factor. For Wye systems, phase voltage = line voltage / √3.
Three-Phase Calculation Results
Total Apparent Power
Three-Phase Vector Diagram
Three-Phase Vector Relationships
In a balanced three-phase system, voltages are separated by 120°. Line-to-line voltage = √3 × phase voltage. For Wye configuration, line current = phase current.
Power Components & Efficiency
Three-Phase Power Formulas
Three-Phase Power Calculations
Apparent Power (S) = √3 × VL-L × IL
Real Power (P) = √3 × VL-L × IL × PF
Reactive Power (Q) = √3 × VL-L × IL × sin(θ)
Power Factor = cos(θ) = P / S
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