1. What is 3 Phase Wattage?

3 Phase Wattage represents the real power in a three-phase electrical system, calculated using voltage, current, and power factor. It's essential for sizing electrical equipment and assessing power consumption in industrial and commercial settings.

2. How Does the Calculator Work?

The calculator uses the 3 phase power formula:

Where:

• \( W \) — Wattage (watts)
• \( V \) — Line-to-line voltage (volts)
• \( I \) — Current (amps)
• \( PF \) — Power factor (unitless, 0 to 1)

Explanation: The √3 factor accounts for the phase difference in three-phase systems. Power factor represents the ratio of real power to apparent power.

3. Importance of 3 Phase Power Calculation

Details: Accurate wattage calculation is crucial for electrical system design, energy efficiency assessment, and proper equipment sizing to prevent overloads.

4. Using the Calculator

Tips: Enter line-to-line voltage in volts, current in amps, and power factor (typically 0.8-1.0). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between line-to-line and line-to-neutral voltage?
A: In 3-phase systems, line-to-line voltage is √3 times the line-to-neutral voltage. This calculator uses line-to-line voltage.

Q2: Why is power factor important?
A: Power factor indicates how effectively current is being converted to useful work. Lower PF means more apparent power is needed for the same real power.

Q3: What's typical power factor for industrial loads?
A: Induction motors typically have 0.85 PF, fluorescent lights 0.5-0.9, and resistive loads 1.0.

Q4: How does this differ from single-phase power calculation?
A: Single-phase uses W = V × I × PF without the √3 factor.

Q5: When would I need this calculation?
A: When sizing transformers, circuit breakers, wiring, or assessing energy consumption in three-phase systems.