1. What is Generator Full Load Current?

The full load current is the maximum current a generator can supply continuously at its rated power output without exceeding temperature limits. It's crucial for proper generator sizing and circuit protection.

2. How Does the Calculator Work?

The calculator uses the basic power formula:

Where:

• \( I \) — Current in amps
• \( kW \) — Generator power in kilowatts
• \( V \) — Voltage in volts

Explanation: The formula converts kW to watts (×1000) then divides by voltage to get current in amps.

3. Importance of Current Calculation

Details: Knowing the full load current helps select proper wire sizes, circuit breakers, and ensures the generator can handle the expected electrical load without overheating.

4. Using the Calculator

Tips: Enter generator power rating in kW and system voltage (typically 120V, 240V, or 480V for residential/commercial applications).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between single-phase and three-phase current?
A: Three-phase calculations require an additional factor (√3 ≈ 1.732). This calculator is for single-phase systems.

Q2: Should I size my generator based on full load current?
A: Yes, but also consider starting currents for motors which can be 3-6 times higher than running current.

Q3: What's a typical full load current for home generators?
A: A 10kW generator at 240V would have about 41.7A full load current (10,000W ÷ 240V).

Q4: Why does voltage affect current?
A: For the same power, higher voltage means lower current (P=VI). This is why transmission lines use high voltages.

Q5: How do I account for power factor?
A: For more precise calculations, divide by power factor (typically 0.8-0.95). This calculator assumes unity (1.0) power factor.