Power Electronics, Motors & Drives worked example

Stator Winding Capacity at 99% expected winding machine uptime: a worked example

What does the result look like when expected winding machine uptime reaches 99%? The full calculation is worked below with real intermediate numbers. Use it when checking whether a stator winding cell can support motor build demand, launch ramp, or a service rewind backlog.

The inputs for this scenario

  • Stators completed per winding cycle: 4 stators / cycle (unchanged)
  • Planned winding cycles: 480 cycles (unchanged)
  • Expected winding machine uptime: 99 % (raised for this scenario; the documented default is 90)
  • Expected winding first-pass yield: 97 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross stator winding capacity = stators completed per cycle × planned winding cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 1,844 stators for good stator winding capacity, the number this scenario is built around.
  • At this operating point the engine returns 1,920 stators for gross stator winding capacity.
  • At this operating point the engine returns 19.2 stators for stator winding downtime loss.
  • At this operating point the engine returns 57.02 stators for stator winding yield loss.

How this compares with the baseline

  • Against the tool's baseline example, where expected winding machine uptime sits at 90% and the headline result is 1,676 stators, this scenario comes in 10% above the baseline at 1,844 stators.
  • A figure at this level is achievable when expected winding machine uptime is genuinely sustained, not just peaked for a shift. It multiplies uptime and yield as independent factors and assumes a stable cycle time; it does not model changeover-driven cycle variation between stator variants.

Results at a glance

  • Good stator winding capacity: 1,844 stators (headline result)
  • Gross stator winding capacity: 1,920 stators
  • Stator winding downtime loss: 19.2 stators
  • Stator winding yield loss: 57.02 stators

Run it with your numbers

  • Every input above is editable in the live Stator Winding Capacity calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.