Partial discharge characteristics of artificial defects in mica-epoxy composite materials
Why this work is in the frame
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Bibliographic record
Abstract
Partial discharge (PD) in groundwall insulation of rotating machines is mainly caused by internal defects like delaminations or cracks according to microscopic investigation. Discrimination of the cracks from the delaminations is important for diagnosis of the groundwall insulation because the cracks along external electrical field can initiate electrical tree and reduce residual breakdown voltage. PD characteristics of artificial delaminations and cracks were measured with both ultra wideband detection and conventional detection. As a result PD in crack type voids included distinguishing high magnitude pulses with a few ns rise time and 1-10 ns fall time. Delamination type void had two types of waveforms that are characterized by (1) fall time longer than 40 ns and (2) fast rise time and fall time of a few ns. PD characteristics with different conditions of void surface, void dimensions and ventilation are also discussed.
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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) | 0.012 | 0.001 |
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 it