1. What is Three Phase Amps to kW Calculator?

Definition: This calculator converts three-phase electrical current (amps) to power (kilowatts) using voltage and power factor.

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Power in kilowatts
• \( V \) — Line-to-line voltage (volts)
• \( I \) — Current (amps)
• \( PF \) — Power factor (0 to 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 Three Phase Power Calculation

Details: Accurate power calculation is essential for sizing equipment, calculating energy consumption, and ensuring electrical system safety.

4. Using the Calculator

Tips: Enter the line-to-line voltage in volts, current in amps, and power factor (default 0.8). Power factor must be between 0 and 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 to useful work.

Q2: Is this for line-to-line or line-to-neutral voltage?
A: The calculator uses line-to-line (phase-to-phase) voltage, which is standard for three-phase power calculations.

Q3: What's a typical power factor value?
A: For motors, power factor typically ranges from 0.8 to 0.95. The default value of 0.8 is common for many industrial loads.

Q4: Can I use this for single-phase systems?
A: No, this calculator is specifically for three-phase systems. For single-phase, use \( P_{kW} = (V \times I \times PF)/1000 \).

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