Potential and electric-field distributions around an ice-covered post-type insulator
Bibliographic record
Abstract
To facilitate the study of phenomena preceding the flashover of an ice-covered station post insulator during a melting period, the potential and electric-field distributions along the insulator have been numerically calculated. Commercial software based on the boundary element method was used for this purpose, and a simplified three-dimensional model of the ice-covered insulator was developed and validated experimentally. Then, a station post insulator covered with wet-grown ice under a melting regime was numerically simulated on the basis of experimental results. The presence of a conducting water film at the ice surface, the shedding of ice deposits, and the presence of a partial electric arc along an air gap were taken into account in the simulations. The results obtained have made it possible to show that the water film, the number of intervals of air, and the presence of partial arcs have a considerable effect on the distribution of the potential and the electric field along the insulator. In the same way, the appearance of a partial arc as well as the occurrence of ice shedding lead to a redistribution of the potential along the ice deposit, either supporting or inhibiting the flashover process. The results obtained will help to improve insulator geometry for cold climate regions.
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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".