Three Phase Power Calculator
Calculate power, voltage, current and power factor relationships
🔌 Phase 3 Calculator
Inputs
Results
Active Power
30.55
kW
Apparent Power
35.94
kVA
Line Current
50.00
A
Line Voltage
415.0
V
Reactive Power (Q)18.93 kVAR
Phase Voltage239.6 V
Phase Current50.00 A
ConnectionStar (Y)
Compliance Checks
✅Power Factor Compliance: 0.85 dimensionless
✅Line Current Limit: 50 A
Important: Results are indicative only and must be verified by a qualified electrical engineer.
Three Phase Power Guide
Three-phase power is the standard for industrial and commercial electrical systems. It provides more efficient power delivery and better utilization of conductors compared to single-phase systems.
Key Concepts
- Real Power (P): Active power delivered to perform work, measured in watts (W).
- Reactive Power (Q): Power oscillating between source and load, measured in VAR.
- Apparent Power (S): Total power in the circuit (P + Q), measured in VA.
- Power Factor: The ratio of real power to apparent power. Values range from 0 to 1.
Star vs Delta Connection
Star (Y) Connection: Neutral point available, line voltage is √3 times phase voltage.
Delta (Δ) Connection: No neutral point, line voltage equals phase voltage.
Disclaimer: This calculator is provided as a guide only and must be verified by a qualified electrical engineer before use in design or installation.