ENEL's experience with on line partial discharge measurement on stator windings of large synchronous hydro generators
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Bibliographic record
Abstract
Results of work in progress at ENEL concerning online measurement of partial discharges in the stator windings of large synchronous hydro generators are reported. The guidelines of this work are basically in accordance with the technique developed by the Ontario Hydro Research Division. Capacitive couplers were set up and permanently installed on the stator windings and/or on the busbars of some 15 hydro generators rated in the range of 50-200 MVA. The main characteristics of these couplers are given, and the basic criteria followed for their installation are briefly reviewed. Pulse waveshapes recorded during operation of the generators are shown, and signals coming from couplers located at different points are compared. Attention is also given to signals resulting from coupling systems installed both inside a generator and along the busbars. Examples of results of online partial discharge measurements performed using a commercially available analyzer are provided.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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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) | 0.001 | 0.000 |
Machine scores (provisional)
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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