Motors, Generators & Electrification Equipment worked example

Insulation Varnish Cure Load at 12% load, heat-up and cool-down allowance: a worked example

Push load, heat-up and cool-down allowance up to 12% and the picture changes. This example computes every intermediate figure at that operating point. Use it when a varnish or VPI cure batch is being added to the schedule and you need an honest oven cure time.

The inputs for this scenario

  • Windings to varnish-cure: 120 windings (unchanged)
  • Oven cure throughput: 12 windings / min (unchanged)
  • Load, heat-up and cool-down allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base cure time = windings to cure รท oven cure throughput) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required cure time, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base cure time.
  • At this operating point the engine returns 12 % for load and cool-down allowance applied.
  • At this operating point the engine returns 12 pieces / min for oven cure throughput.

How this compares with the baseline

  • Against the tool's baseline example, where load, heat-up and cool-down allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • It converts a winding batch into required oven hours by dividing by cure throughput and then inflating by the load, heat-up and cool-down allowance. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Required cure time: 11.2 hr (headline result)
  • Base cure time: 10 hr
  • Load and cool-down allowance applied: 12 %
  • Oven cure throughput: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Insulation Varnish Cure Load calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.