Conversion Formula:
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The horsepower to kilowatts conversion is used to convert mechanical power (horsepower) to electrical power (kilowatts) for three-phase systems. This conversion is essential for electrical engineering applications and motor specifications.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor 0.7457 represents the exact conversion from mechanical horsepower to electrical kilowatts for three-phase systems.
Details: Accurate power conversion is crucial for electrical system design, motor selection, energy efficiency calculations, and proper equipment sizing in industrial applications.
Tips: Enter horsepower value (default is 10 HP). The calculator will automatically compute the equivalent kilowatts for three-phase systems.
Q1: Why is the conversion factor 0.7457?
A: 0.7457 is the standard conversion factor where 1 mechanical horsepower equals 0.7457 kilowatts for three-phase electrical systems.
Q2: Does this conversion work for single-phase systems?
A: The conversion factor is the same regardless of phase, but three-phase systems typically have different power factor considerations.
Q3: What is the typical efficiency of motor conversions?
A: Motor efficiency varies but typically ranges from 80-95%. This calculator provides the theoretical conversion without efficiency factors.
Q4: When should I use this conversion?
A: Use this conversion when specifying motor sizes, calculating electrical load requirements, or comparing mechanical and electrical power ratings.
Q5: Are there different types of horsepower?
A: Yes, there are mechanical, electrical, and metric horsepower. This calculator uses mechanical horsepower (1 HP = 745.7 watts).