Amps to kW 3 Phase

3 Phase Power Formula:

\[ P_{kW} = \frac{V \times I \times PF \times \sqrt{3}}{1000} \]

Power (P_kW): kW

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1. What is Amps to kW 3 Phase Calculator?

Definition: This calculator converts current (amps) to power (kilowatts) in three-phase electrical systems.

Purpose: It helps electrical engineers, technicians, and electricians determine power consumption in three-phase circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_{kW} = \frac{V \times I \times PF \times \sqrt{3}}{1000} \]

Where:

\( P_{kW} \) — Power in kilowatts (kW)
\( V \) — Line-to-line voltage (volts)
\( I \) — Current (amps)
\( PF \) — Power factor (unitless, 0-1)
\( \sqrt{3} \) — Constant for three-phase systems (≈1.732)

Explanation: The formula accounts for all three phases in the system and converts watts to kilowatts.

3. Importance of 3 Phase Power Calculation

Details: Accurate power calculation is essential for proper equipment sizing, energy efficiency, and electrical system design.

4. Using the Calculator

Tips: Enter the line-to-line voltage in volts, current in amps, and power factor (default 0.8). All values must be > 0, and PF must be ≤ 1.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor is the ratio of real power to apparent power, ranging from 0 to 1. It represents how effectively current is being converted into useful work.

Q2: What's a typical power factor value?
A: For motors, typical values range from 0.8-0.95. Resistive loads have PF=1, while inductive loads have lower PF.

Q3: Is this for line-to-line or line-to-neutral voltage?
A: This calculator uses line-to-line voltage (also called phase-to-phase voltage).

Q4: Can I use this for single-phase systems?
A: No, for single-phase use \( P_{kW} = \frac{V \times I \times PF}{1000} \) (without the √3 factor).

Q5: Why divide by 1000?
A: This converts watts to kilowatts (1 kW = 1000 W).