Environmental qualification of insulation systems for nuclear applications
Bibliographic record
Abstract
For a recent contract, the user specified that the primary heat transport pump and the shutdown pump motors be environmentally qualified (EQ) for the applications. This meant that the complete motors, including the insulation, systems would be tested along the requirements set forth in IEEE 323, IEEE 334, and IEEE 344. The physical sizes of the machines prevented the actual units from being tested, and hence, component testing became necessary. To environmentally qualify a stator insulation system, including a loss of coolant accident (LOCA) toward the end of a 30 year insulation life, requires the manufacture and testing of statorettes. This paper discusses: (1) the types of problems which can be encountered in this type of exercise; (2) the testing and test results for both a 4 kV and a 13.2 kV insulation system; and (3) the results from testing to failure of the coils after the completion of the environmental qualification tests. Results of surge, hi-pot, polarization index, and partial discharge tests are presented.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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 teacher head, 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".