Motor Current Calculator
Calculate the current draw for electric motors based on power, voltage, power factor, and efficiency. Compare single-phase and three-phase motor calculations.
Step 1: Motor Specifications
Motor Current Calculation
Motor current is calculated based on power, voltage, power factor, and efficiency. Three-phase motors typically draw less current per phase than single-phase motors for the same power output.
Step 2: Motor Parameters
Understanding Motor Parameters
Power factor represents the ratio of real power to apparent power. Efficiency indicates how effectively the motor converts electrical power to mechanical power. Higher values for both mean better performance.
Motor Current Calculation Results
Motor Full Load Current
Motor Type Current Comparison
| Motor Type | Power (kW) | Voltage (V) | Current (A) | Power Factor |
|---|
Motor Current Calculation Formulas
Three-Phase Motor Current Formula
I = P × 1000 / (√3 × V × PF × Eff)
Where: I = Current (A), P = Power (kW), V = Voltage (V), PF = Power Factor, Eff = Efficiency (decimal)
Single-Phase Motor Current Formula
I = P × 1000 / (V × PF × Eff)
Where: I = Current (A), P = Power (kW), V = Voltage (V), PF = Power Factor, Eff = Efficiency (decimal)
Power Conversion Formulas
kW to HP Conversion
1 kW = 1.341 HP
1 HP = 0.746 kW
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