1. What is Motor Output Power?

Definition: Motor output power is the mechanical power delivered by an electric motor, typically measured in watts or horsepower.

Purpose: This calculation helps in determining the electrical requirements and performance characteristics of motors.

2. How Does the Formula Work?

The calculator uses the formula:

Where:

• \( P_w \) — Power in watts
• \( HP \) — Horsepower (1 HP = 746 watts)

Explanation: The formula converts horsepower to watts using the standard conversion factor of 746 watts per horsepower.

3. Importance of Motor Power Calculation

Details: Proper power calculation ensures correct motor sizing for applications, energy efficiency, and system compatibility.

4. Using the Calculator

Tips: Simply enter the horsepower value to get the equivalent power in watts. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why 746 watts per horsepower?
A: This is the standard conversion factor based on James Watt's original measurements of mechanical power.

Q2: Is this formula for input or output power?
A: This calculates the motor's mechanical output power, not the electrical input power.

Q3: Does this account for motor efficiency?
A: No, this is the theoretical output. Actual electrical input would be higher due to efficiency losses.

Q4: Can I use this for different motor types?
A: Yes, the HP to watts conversion applies to all motor types (AC, DC, induction, etc.).

Q5: How precise is this conversion?
A: The 746 watts/HP is a standard engineering conversion, though some standards use 745.7 watts.