Power Electronics, Motors & Drives worked example

Motor Test Stand Utilization at 98% target stand utilization: a worked example

What does the result look like when target stand utilization reaches 98%? The full calculation is worked below with real intermediate numbers. Use it when deciding whether dyno, torque, efficiency, NVH, thermal, or endurance test stands have enough capacity for the motor schedule.

The inputs for this scenario

  • Loaded motor test hours: 360 hr (unchanged)
  • Available test stand hours: 480 hr (unchanged)
  • Target stand utilization: 98 % (raised for this scenario; the documented default is 85)

Working through the calculation

  • Applying the documented formula (Motor test stand utilization = loaded motor test hours ÷ available test stand hours × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 75 % for motor test stand utilization, the number this scenario is built around.
  • At this operating point the engine returns 23 points for utilization gap to target.
  • At this operating point the engine returns 360 value for loaded motor test hours.
  • At this operating point the engine returns 480 value for available test stand hours.

How this compares with the baseline

  • Against the tool's baseline example, where target stand utilization sits at 85% and the headline result is 75 %, this scenario lands almost exactly on the baseline at 75 %.
  • A figure at this level is achievable when target stand utilization is genuinely sustained, not just peaked for a shift. Utilization alone does not distinguish value-adding test time from re-tests and burn-in; a high number can hide rework churn.

Results at a glance

  • Motor test stand utilization: 75 % (headline result)
  • Utilization gap to target: 23 points
  • Loaded motor test hours: 360 value
  • Available test stand hours: 480 value

Run it with your numbers

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

Last reviewed 2026-05-12.