Power Electronics, Motors & Drives worked example

Motor Line OEE at 99% motor line performance factor: a worked example

What does the result look like when motor line performance factor reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when reviewing motor assembly, winding, rotor insertion, test, or final line performance against demand.

The inputs for this scenario

  • Motor line uptime: 420 hr (unchanged)
  • Planned production time: 480 hr (unchanged)
  • Motor line performance factor: 99 % (raised for this scenario; the documented default is 95)
  • Motor line quality factor: 98 % (unchanged)

Working through the calculation

  • Applying the documented formula (Motor line availability = motor line uptime รท planned production time) to the inputs above produces each figure below.
  • At this operating point the engine returns 84.89 % for motor line oee, the number this scenario is built around.
  • At this operating point the engine returns 87.5 % for base availability.
  • At this operating point the engine returns 99 % for motor line performance factor.
  • At this operating point the engine returns 98 % for motor line quality factor.

How this compares with the baseline

  • Against the tool's baseline example, where motor line performance factor sits at 95% and the headline result is 81.46 %, this scenario comes in 4.21% above the baseline at 84.89 %.
  • A figure at this level is achievable when motor line performance factor is genuinely sustained, not just peaked for a shift. It assumes your performance and quality factors are already measured correctly; a wrong performance factor (e.g. using design speed instead of validated ideal cycle time) skews OEE more than any other input.

Results at a glance

  • Motor line OEE: 84.89 % (headline result)
  • Base availability: 87.5 %
  • Motor line performance factor: 99 %
  • Motor line quality factor: 98 %

Run it with your numbers

  • Every input above is editable in the live Motor Line OEE calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.