1. What is a Single Phase to Three Phase Calculator?

Definition: This calculator converts single-phase power (kW) to equivalent three-phase power (kW) using the √3 (approximately 1.732) conversion factor.

Purpose: It helps electrical engineers and technicians estimate three-phase power requirements when only single-phase measurements are available.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{3\phi} \) — Three-phase power (kW)
• \( P_{1\phi} \) — Single-phase power (kW)
• \( \sqrt{3} \) — Conversion factor (approximately 1.732)

Explanation: The formula accounts for the phase difference in three-phase systems, where power is distributed across three conductors instead of one.

3. Importance of Power Conversion

Details: Proper conversion ensures accurate sizing of electrical equipment, circuit protection, and power distribution systems when transitioning between single-phase and three-phase configurations.

4. Using the Calculator

Tips: Enter the single-phase power in kilowatts (kW). The value must be greater than 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor √3?
A: The √3 factor accounts for the 120° phase difference between the three phases in a balanced three-phase system.

Q2: Does this calculation work for both current and power?
A: This specific calculator is for power (kW) conversion. Current conversion requires additional voltage and power factor considerations.

Q3: When would I need this conversion?
A: When sizing three-phase equipment based on single-phase measurements, or when comparing single-phase and three-phase system capacities.

Q4: Is the voltage the same in both systems?
A: This calculator assumes the same voltage. In practice, three-phase systems often operate at higher voltages.

Q5: What about power factor?
A: This calculation assumes unity power factor (1.0). For non-unity power factors, additional calculations would be needed.