1. What is kW to kVA 3 Phase Conversion?

Definition: This calculator converts real power (kW) to apparent power (kVA) in three-phase electrical systems using the power factor.

Purpose: It helps electrical engineers and technicians properly size equipment and understand power requirements in AC circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kVA \) — Apparent power (kilovolt-amperes)
• \( P_{kW} \) — Real power (kilowatts)
• \( PF \) — Power factor (unitless, between 0 and 1)

Explanation: The real power is divided by the power factor to calculate the apparent power needed in the system.

3. Importance of kW to kVA Conversion

Details: Proper conversion ensures correct sizing of transformers, generators, and other electrical equipment that are rated in kVA.

4. Using the Calculator

Tips: Enter the real power in kW and power factor (default 0.8). Power factor must be between 0.01 and 1.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor is the ratio of real power (kW) to apparent power (kVA), representing how effectively power is being used.

Q2: Why is this specific to 3-phase systems?
A: While the basic formula works for single-phase, this calculator is optimized for three-phase power calculations common in industrial settings.

Q3: What's a typical power factor value?
A: Industrial facilities typically range 0.8-0.95. Motors might have 0.85, while purely resistive loads have 1.0.

Q4: How does power factor affect kVA?
A: Lower power factor means higher kVA for the same kW, requiring larger equipment to handle the reactive power.

Q5: Can kVA be less than kW?
A: No, since power factor ≤ 1, kVA will always be equal to or greater than kW.