1. What Is Electric Motor Torque?

Electric motor torque is the rotational force produced by an electric motor. It is a crucial parameter that determines the motor's ability to perform work and overcome resistance in mechanical systems.

2. How Does The Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( P \) — Power (kW)
• \( N \) — Speed (rpm)
• 9550 — Conversion constant

Explanation: The formula calculates the torque output of an electric motor based on its power rating and rotational speed, using the standard conversion factor of 9550.

3. Importance Of Torque Calculation

Details: Accurate torque calculation is essential for proper motor selection, ensuring the motor can provide sufficient force for the intended application without overloading or underperforming.

4. Using The Calculator

Tips: Enter power in kilowatts (kW) and speed in revolutions per minute (rpm). Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is the constant 9550 used in the formula?
A: The constant 9550 is derived from unit conversions to relate power (kW), speed (rpm), and torque (Nm) in the metric system.

Q2: What is a typical torque range for electric motors?
A: Torque values vary significantly based on motor size and type, ranging from fractional Nm for small motors to thousands of Nm for large industrial motors.

Q3: How does torque relate to motor performance?
A: Torque determines the motor's ability to start under load, accelerate, and maintain operation against mechanical resistance.

Q4: Can this formula be used for all types of electric motors?
A: This formula provides a general calculation for torque based on power and speed, but specific motor characteristics may affect actual torque output.

Q5: How does voltage affect motor torque?
A: For many motor types, torque is proportional to the square of the voltage, so voltage variations can significantly impact torque output.