In-situ Repair of Stator Core of Hydro-generator - Establishing the Process
Bibliographic record
Abstract
Faults on generator windings are more common, but many times core is also affected.The suppliers of the equipment do not guarantee satisfactory in-situ repairs of the stator core.They recommend partial or complete replacement of the core.For localized damages it may not make sense to go for entire core build up.So, the owners frequently attempt temporary solution and in-situ repairs.But the methodology of localized repair is always random.Developing efficient process for localized repairs on stator cores is essential so as to reduce the cost and outage time of the machines as well as for ensuring trouble free post repair operation.The present case study emanates from the experience gained from the field repairs of core of the stator of a hydro-generator in India.This study presents a case where the actual damage to winding insulation has been caused by deteriorated stator core laminations.The case study describes the probable causes of deterioration of winding and core, methods of locating the fault, the process adopted during the repairs and the benefits derived from the in-situ repair of core.Through the repair process, a methodology has been established for undertaking such localized repairs in stator cores.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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".