1. What is a 3 Phase Amps to kVA Calculator?

Definition: This calculator converts current (amps) and voltage to apparent power (kVA) for three-phase electrical systems.

Purpose: It helps electricians and engineers determine the apparent power in kilovolt-amps for three-phase circuits.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kVA \) — Apparent power in kilovolt-amps
• \( V \) — Line-to-line voltage (volts)
• \( I \) — Current (amps)
• \( \sqrt{3} \) — Constant for three-phase systems (≈1.732)

Explanation: The formula accounts for the phase difference in three-phase systems by multiplying by √3.

3. Importance of kVA Calculation

Details: kVA represents the total power in an AC circuit, including both real (kW) and reactive (kVAR) power components.

4. Using the Calculator

Tips: Enter the line-to-line voltage in volts and the current in amps. Both values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between kVA and kW?
A: kVA is apparent power (volts × amps), while kW is real power (volts × amps × power factor).

Q2: Why do we multiply by √3 in three-phase calculations?
A: √3 accounts for the 120° phase difference between the three phases in a balanced system.

Q3: Is this for line-to-line or line-to-neutral voltage?
A: This calculator uses line-to-line voltage (the voltage between any two phases).

Q4: Can I use this for single-phase systems?
A: No, for single-phase use V×I/1000 (without the √3 factor).

Q5: How does power factor affect this calculation?
A: Power factor doesn't affect kVA, but it does affect real power (kW = kVA × power factor).