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Electric Motors

Motor Acceleration Time Calculator

Motor Acceleration Time converts the entered electrical measurements into acceleration time. Use it to the acceleration time calculation.

Enter values for acceleration time

Use one consistent electrical operating case for all fields.

rad/s

Enter speed change in rad/s.

rad/s²

Enter average acceleration in rad/s².

How Motor Acceleration Time works

This worksheet evaluates time = speed change ÷ acceleration. Motor Acceleration Time uses Speed change, Average acceleration to report Acceleration time.

With the loaded values, acceleration time evaluates to 5.00 s. Compare low and high values without overwriting the starting case. Use Motor Cable Power Loss Calculator as the follow-up for cable loss.

Inputs for Motor Acceleration Time

Speed change and Average acceleration belong to Motor Acceleration Time. Keep source units with speed change.

The sample case is a worked example, not a design target.

Speed change
Example entry: 150 rad/s.
Average acceleration
Example entry: 30 rad/s².

Reading the Motor Acceleration Time result

This output represents Motor Acceleration Time.

Apply required margins only after identifying the correct equipment standard.

Measurement and units

Motor nameplate data, duty, enclosure, starting method, load profile, and thermal limits govern final selection. Check prefixes on speed change.

Record conversion choices so comparisons stay traceable.

Limits of this calculation

Available torque and inertia determine acceleration.

Only the stated inputs participate in this simplified model. Unentered effects remain outside Motor Acceleration Time.

A useful Motor Acceleration Time comparison

Record acceleration time before testing a different speed change value. If the next question concerns synchronous speed, open Synchronous Motor Speed Calculator.

Document the alternate speed change source.

Questions about Motor Acceleration Time

What does Motor Acceleration Time calculate?

Motor Acceleration Time reports acceleration time.

Can Speed change be zero?

For Motor Acceleration Time, measure any zero speed change directly.

Why can acceleration time differ from measurement?

Available torque and inertia determine acceleration. Recheck speed change.