1. What is Single Phase to 3 Phase kW Conversion?

Definition: This calculator converts single-phase power in kilowatts (kW) to the equivalent three-phase power.

Purpose: It helps electrical engineers and technicians compare power ratings between single-phase and three-phase systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{3ph} \) — Three-phase power (kW)
• \( P_{1ph} \) — Single-phase power (kW)
• \( \sqrt{3} \) — Mathematical constant (≈1.732)

Explanation: The √3 factor accounts for the phase difference in three-phase systems, where power is distributed across three conductors.

3. Importance of Power Conversion

Details: Understanding equivalent power ratings helps in equipment selection, system design, and comparing single-phase vs. three-phase solutions.

4. Using the Calculator

Tips: Enter the single-phase power in kW. The calculator assumes the same voltage for both systems.

5. Frequently Asked Questions (FAQ)

Q1: Why is √3 used in the conversion?
A: √3 represents the phase difference (120°) between the three phases in a balanced three-phase system.

Q2: Does this conversion account for power factor?
A: No, this assumes unity power factor (1.0) for both systems.

Q3: When would I use this conversion?
A: When comparing equipment ratings or determining equivalent three-phase power for a given single-phase load.

Q4: Is this conversion reversible?
A: Yes, to convert 3-phase to single-phase, divide by √3 instead of multiplying.

Q5: What are typical applications?
A: Motor sizing, generator selection, and electrical system design where both single-phase and three-phase options exist.