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Generator Full Load Current Formula:
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Full Load Current (FLC) is the maximum current that a generator can supply continuously without exceeding its temperature rating. It's a critical parameter for proper generator sizing and protection device selection.
The calculator uses the Full Load Current formula:
Where:
Explanation: The formula converts kilowatts to watts (×1000), then divides by the product of voltage and power factor to calculate the current in amperes.
Details: Accurate FLC calculation is essential for proper generator selection, circuit breaker sizing, cable selection, and ensuring electrical system safety and efficiency.
Tips: Enter power in kilowatts, voltage in volts, and power factor (typically between 0.8-1.0). All values must be positive numbers with power factor between 0 and 1.
Q1: Why is power factor important in FLC calculation?
A: Power factor represents the phase difference between voltage and current. Lower power factor means more current is required to deliver the same real power, affecting generator sizing.
Q2: What is a typical power factor value?
A: For most industrial applications, power factor ranges from 0.8 to 0.95. Residential loads typically have power factors around 0.85-0.9.
Q3: How does voltage affect full load current?
A: Higher voltage results in lower current for the same power output, which is why high voltage transmission is used to reduce current and associated losses.
Q4: When should this calculation be used?
A: This calculation is essential when sizing generators, selecting circuit breakers, determining cable sizes, and designing electrical distribution systems.
Q5: Are there different formulas for single-phase vs three-phase systems?
A: Yes, this formula is for single-phase systems. Three-phase systems use a different formula that includes √3 in the denominator.