1. What is an Industrial Generator Size Calculator?

Definition: This calculator estimates the required generator size in kilowatts based on the total electrical load and a safety factor.

Purpose: It helps engineers and facility managers determine the appropriate generator capacity for industrial applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Generator size (kilowatts)
• \( P_{load} \) — Total electrical load (watts)
• \( SF \) — Safety factor (typically 1.25 for industrial use)

Explanation: The total load is converted from watts to kilowatts, then multiplied by a safety factor to ensure adequate capacity.

3. Importance of Proper Generator Sizing

Details: Correct generator sizing ensures reliable power supply, prevents overload conditions, and optimizes fuel efficiency.

4. Using the Calculator

Tips: Enter the total connected load in watts and safety factor (default 1.25). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why do we need a safety factor?
A: The safety factor accounts for future load expansion, starting currents, and ensures the generator isn't constantly running at full capacity.

Q2: What's a typical safety factor?
A: Industrial applications typically use 1.25-1.5, while critical systems may use higher factors.

Q3: Should I include all connected loads?
A: Yes, sum all potential loads that might run simultaneously, including motors which have high starting currents.

Q4: How do I find my total load?
A: Sum the nameplate ratings of all equipment or measure actual consumption with a power meter.

Q5: Does this account for three-phase power?
A: This provides basic sizing. For three-phase systems, consult an electrical engineer for precise calculations.