What Is This Tool?
This converter transforms power values from electric horsepower—a unit commonly used to rate electric motors—into kilojoule per second (kJ/s), a standard SI unit equivalent to kilowatts, facilitating consistent energy transfer rate comparisons.
How to Use This Tool?
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Input the value in electric horsepower you want to convert
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Select 'horsepower (electric)' as the from-unit
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Choose 'kilojoule/second [kJ/s]' as the to-unit
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Click convert to see the corresponding power in kJ/s
Key Features
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Converts electric horsepower values to kilojoule per second [kJ/s]
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Based on precise definitions used in U.S. electrical engineering
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Browser-based and easy to use without installation
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Supports engineering tasks including motor rating and power specification
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Displays direct equivalences for quick reference
Examples
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2 horsepower (electric) equals 1.492 kJ/s
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5 horsepower (electric) equals 3.73 kJ/s
Common Use Cases
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Interpreting motor nameplates for pumps, fans, and compressors
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Sizing motor controllers and electrical supply capacity
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Comparing motor power ratings between horsepower and watts
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Describing power output in industrial and power generation equipment
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Assessing thermal energy transfer rates in HVAC and boiler systems
Tips & Best Practices
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Confirm that horsepower values are electric horsepower as defined
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Remember that 1 kilojoule/second equals 1 kilowatt for straightforward comparisons
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Use the tool for consistent engineering specifications and documentation
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Clearly specify units to avoid confusion with other horsepower measurements
Limitations
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Only electric horsepower units are accurate for this conversion; other horsepower types differ
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Kilojoule per second is identical in magnitude to kilowatt, which may cause misunderstandings
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Conversion assumes standardized definitions without addressing rounding or precision
Frequently Asked Questions
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What is electric horsepower used for?
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Electric horsepower rates electric motors and drives, representing mechanical work output by an electric machine as defined in U.S. engineering practices.
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How is kilojoule per second related to kilowatt?
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Kilojoule per second is equivalent in magnitude to kilowatt, where 1 kJ/s equals 1 kW or 1,000 watts.
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Why convert electric horsepower to kilojoule/second?
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The conversion allows comparison of power ratings using standard SI units for engineering specifications and accurate calculations.
Key Terminology
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Horsepower (electric)
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A power unit defined as exactly 746 watts, used to rate electric motors and represent mechanical work output.
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Kilojoule/second [kJ/s]
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A power measurement unit representing energy transfer at a rate of 1,000 joules per second; equivalent to the kilowatt.
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Power
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The rate of energy transfer or conversion measured in units such as watts, horsepower, or kilojoules per second.