3-Phase Power Formula:
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Definition: This calculator converts apparent power (kVA) to real power (kW) in three-phase electrical systems using the power factor.
Purpose: Helps electrical engineers and technicians determine the actual usable power in a three-phase system.
The calculator uses the formula:
Where:
Explanation: The apparent power is multiplied by the power factor to get the actual usable power (real power).
Details: Proper conversion ensures accurate power calculations, correct equipment sizing, and efficient energy usage in three-phase systems.
Tips: Enter the apparent power in kVA and power factor (default 0.8). Power factor must be between 0 and 1.
Q1: What is power factor?
A: Power factor is the ratio of real power to apparent power, representing the efficiency of power usage.
Q2: What's a typical power factor value?
A: Industrial systems typically range from 0.8 to 0.95. The default 0.8 is common for many applications.
Q3: Why is this specific to 3-phase systems?
A: While the formula is the same, three-phase systems require balanced loads and different considerations than single-phase.
Q4: How does this differ from single-phase calculation?
A: The basic formula is the same, but three-phase systems multiply by √3 (1.732) in voltage/current calculations.
Q5: When would I need this calculation?
A: When sizing generators, transformers, or determining actual power consumption in three-phase installations.