Low-cost amorphous-metal rolled-up-core distribution transformer
Bibliographic record
Abstract
The technology of an amorphous-metal rolled-up-core distribution transformer is under development at Hydro-Québec. This transformer, a core-type configuration, comprises a magnetic core made of a flexible annealed amorphous-metal ribbon rolled up around the coils. The coils and core are mounted on a molded skeleton fulfilling multiple functions, namely a winding frame, coil and core support, coil cooling, and anchoring to the tank. This topology provides efficient cooling of the coils, comprises non-bulky interlacing connections, and incorporates preformed secondary lead terminals ready to connect with the tank bushings. The technology allows automated manufacturing processes and mass production of generic designs of transformer kernels (core and coil only) at the DOE baseline efficiency level for transformer power ratings up to 100 kVA. Flexible annealed amorphous-metal ribbon could be supplied from the casting plant to a few component manufacturers which would mass-produce transformer kernels that would then be shipped to transformer assemblers for final tanking according to local utility specifications. These generic transformer kernels would be cost competitive with foreign production.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".