1. What is HP to kW Conversion for 460V 3-Phase?

Definition: This calculator converts mechanical horsepower (HP) to electrical kilowatts (kW) for 460V three-phase systems.

Purpose: It helps electrical engineers and technicians determine the equivalent electrical power needed for motor applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_{kW} \) — Power in kilowatts
• \( HP \) — Mechanical horsepower
• \( 0.746 \) — Conversion factor (1 HP = 0.746 kW)

Explanation: The conversion is based on the standard equivalence between mechanical and electrical power units.

3. Importance of HP to kW Conversion

Details: Accurate conversion is essential for proper motor sizing, electrical system design, and energy efficiency calculations in industrial applications.

4. Using the Calculator

Tips: Simply enter the horsepower value (must be > 0) and the calculator will provide the equivalent power in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 0.746?
A: This comes from the exact conversion where 1 horsepower equals 745.7 watts (rounded to 0.746 kW).

Q2: Does this conversion change for different voltages?
A: No, the HP to kW conversion is voltage-independent. The 460V specification indicates the calculator is designed for industrial 3-phase systems.

Q3: Is this conversion different for single-phase systems?
A: The HP to kW conversion is the same, but single-phase systems require different current calculations.

Q4: How accurate is this conversion?
A: The conversion is mathematically exact, but real-world motor efficiency and power factor will affect actual electrical power requirements.

Q5: When would I need this conversion?
A: When sizing electrical equipment, calculating energy consumption, or comparing mechanical and electrical power systems.