1. What is Three Phase Wattage Calculation?

Three phase wattage calculation determines the real power in a three-phase electrical system. It accounts for voltage, current, power factor, and the √3 constant that represents the phase relationship in three-phase systems.

2. How Does the Calculator Work?

The calculator uses the three phase power formula:

Where:

• \( W \) — Power in watts
• \( V \) — Voltage in volts
• \( I \) — Current in amps
• \( \sqrt{3} \) — Constant (approximately 1.732)
• \( PF \) — Power factor (dimensionless, 0-1)

Explanation: The formula calculates real power in a balanced three-phase system, accounting for the phase difference between voltage and current.

3. Importance of Three Phase Power Calculation

Details: Accurate power calculation is crucial for electrical system design, load balancing, energy efficiency analysis, and proper equipment sizing in industrial and commercial applications.

4. Using the Calculator

Tips: Enter voltage in volts, current in amps, and power factor (0-1). All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the √3 constant in the formula?
A: The √3 (approximately 1.732) accounts for the phase relationship between the three phases in a balanced three-phase system.

Q2: What is power factor and why is it important?
A: Power factor represents the ratio of real power to apparent power. It indicates how effectively electrical power is being used.

Q3: When is this formula applicable?
A: This formula applies to balanced three-phase systems with sinusoidal waveforms. For unbalanced systems, more complex calculations are needed.

Q4: What are typical power factor values?
A: Power factor typically ranges from 0 to 1. Industrial loads often have power factors between 0.7-0.9, while resistive loads have power factors near 1.

Q5: How does this differ from single-phase power calculation?
A: Single-phase power calculation uses W = V × I × PF without the √3 factor, as there's no phase relationship to account for.