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Torque Formula:
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The torque calculation formula estimates the rotational force produced by an electric motor based on its power output and rotational speed. It provides an accurate assessment of motor performance characteristics.
The calculator uses the torque formula:
Where:
Explanation: The formula calculates the rotational force generated by an electric motor, where 9550 is a constant conversion factor that accounts for unit conversions between kW, rpm, and Nm.
Details: Accurate torque calculation is crucial for motor selection, system design, performance analysis, and ensuring proper motor operation under various load conditions.
Tips: Enter power in kilowatts (kW) and speed in revolutions per minute (rpm). All values must be valid positive numbers.
Q1: Why is 9550 used in the formula?
A: 9550 is a conversion constant that accounts for the relationship between power (kW), speed (rpm), and torque (Nm) in the metric system.
Q2: What are typical torque values for electric motors?
A: Torque values vary significantly based on motor size, type, and application, 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 a motor's ability to overcome resistance and perform work. Higher torque enables motors to handle heavier loads and accelerate faster.
Q4: Are there limitations to this calculation?
A: This formula provides theoretical maximum torque and assumes 100% efficiency. Actual torque may vary due to efficiency losses, temperature, and other operating conditions.
Q5: Can this formula be used for all motor types?
A: This formula applies to various electric motor types (AC, DC, induction, etc.) when calculating theoretical torque based on power and speed specifications.