Power Formula:
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Definition: This calculator estimates the actual power output in kilowatts (kW) from a 10 kVA diesel generator based on the power factor.
Purpose: It helps determine the usable electrical power available from a generator, which is crucial for proper equipment sizing and electrical system design.
The calculator uses the formula:
Where:
Explanation: The apparent power (kVA) is multiplied by the power factor to get the real power (kW) that can perform actual work.
Details: Understanding the relationship between kVA and kW ensures you don't overload your generator and helps select properly sized equipment.
Tips: Enter the power factor (default 0.8). The value must be between 0 and 1. Typical power factors range from 0.7 to 0.95.
Q1: What is power factor?
A: Power factor is the ratio of real power (kW) to apparent power (kVA), representing how effectively electricity is being used.
Q2: Why is 0.8 the default power factor?
A: Most generators are rated at 0.8 PF, meaning they can deliver 80% of their kVA rating in kW.
Q3: Can I run equipment totaling 10 kW on a 10 kVA generator?
A: Only if the power factor is 1.0. At 0.8 PF, maximum output is 8 kW.
Q4: How do I improve power factor?
A: Use power factor correction capacitors or reduce reactive loads (motors, transformers).
Q5: What happens if I exceed the kW rating?
A: The generator may overheat, trip circuit breakers, or experience voltage drops.