Motors, Generators & Electrification Equipment worked example
Winding Scrap Cost at 58% share charged to this line or period: a worked example
Here is what the math looks like when conditions slip. We hold every other input steady and drop share charged to this line or period to 58%, then walk the calculation through step by step. Estimate the cost of scrapped motor and generator windings so quality and cost teams can size copper and labor loss, compare scrap scenarios, and target winding yield improvement.
The inputs for this scenario
- Scrapped windings: 100 windings (held at the documented default)
- Cost per scrapped winding: 45 $ / winding (held at the documented default)
- Share charged to this line or period: 58 % (the input this scenario stresses; the baseline uses 80)
- Fixed containment cost: 250 $ (held at the documented default)
Working through the calculation
- The calculation starts from the formula this tool documents: Variable winding scrap cost = scrapped windings × cost per scrapped winding × share charged to this line or period.
- Total winding scrap cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
- Scrap cost per winding works out to 28.6 $ / piece at these inputs.
- Variable winding scrap cost works out to 2,610 $ at these inputs.
- Fixed containment cost works out to 250 $ at these inputs.
How this compares with the baseline
- Against the tool's baseline example, where share charged to this line or period sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
- The practical read: the gap between this scenario and the baseline is entirely attributable to share charged to this line or period, so recovering it is worth quantifying in dollars before considering equipment or staffing changes. It values scrap at a flat cost per winding and does not capture stranded downstream cost, opportunity cost of lost capacity, or rework that recovers some windings rather than scrapping them.
Results at a glance
- Total winding scrap cost: 2,860 $ (headline result)
- Scrap cost per winding: 28.6 $ / piece
- Variable winding scrap cost: 2,610 $
- Fixed containment cost: 250 $
Run it with your numbers
- To rerun this with your own numbers, open the live Winding Scrap Cost calculator, set share charged to this line or period to your actual value, and adjust the remaining inputs to match your operation.
Last reviewed 2026-05-12.