1. What is Torque in Parallel Motors?

When motors are connected in parallel, their combined torque output is the sum of individual motor torques. This calculator helps determine the total torque produced by multiple identical motors operating at the same speed.

2. How Does the Calculator Work?

The calculator uses the torque formula for parallel motors:

Where:

• \( \text{Power} \) — Motor power in kilowatts (kW)
• \( \text{RPM} \) — Rotational speed in revolutions per minute
• \( \text{Number of Motors} \) — Identical motors operating in parallel
• 9550 — Conversion factor (derived from 60,000/2π)

Explanation: The formula converts power to torque for one motor, then multiplies by the number of motors to get total torque.

3. Importance of Torque Calculation

Details: Calculating torque is essential for sizing motors, designing mechanical systems, ensuring proper load handling, and preventing motor overload.

4. Using the Calculator

Tips: Enter motor power in kW, rotational speed in RPM, and number of identical motors. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why is 9550 used in the formula?
A: It's the conversion factor from kW and RPM to Nm (60,000/2π) to account for units and angular velocity.

Q2: Does this work for different motor types?
A: Yes, as long as the motors are identical and operating at the same speed. For mixed motors, calculate each separately and sum.

Q3: What if motors have different power ratings?
A: Calculate torque for each motor separately using their individual power ratings, then sum the torques.

Q4: How does efficiency affect the calculation?
A: This gives theoretical torque. For actual torque, multiply by motor efficiency (typically 0.8-0.95).

Q5: Can this be used for gear systems?
A: For geared systems, you must account for gear ratio efficiency. The torque at output will be different.