1. What is kW to kVA Conversion for 3-Phase Systems?

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

Purpose: 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:

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

Explanation: The real power (kW) is divided by the power factor to determine the apparent power (kVA) needed in the system.

3. Importance of kW to kVA Conversion

Details: Proper conversion ensures correct sizing of transformers, generators, and other electrical equipment to handle both real and reactive power.

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. All values must be > 0.

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: What's a typical power factor value?
A: Industrial systems often aim for 0.8-0.95. Residential may be 0.7-0.9. Perfect is 1.0 (purely resistive load).

Q3: Why is this important for 3-phase systems?
A: Three-phase systems are common in industrial and commercial settings where power factor correction is crucial.

Q4: How does this differ from single-phase calculation?
A: The basic formula is the same, but three-phase systems require consideration of line-to-line vs line-to-neutral voltages.

Q5: What if I know kVA and need kW?
A: Use the inverse formula: kW = kVA × PF