EMTP based study of self-excitation phenomenon in an induction generator
Why this work is in the frame
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Bibliographic record
Abstract
A study of the application of an induction generator in power systems, conducted under Hydro-Quebec sponsorship, is presented in this paper. The phenomenon of self-excitation is investigated using the Electromagnetic Transients Program (EMTP). The results demonstrate that, if the induction generator is sufficiently compensated, it may become self-excited when disconnected from the power grid. High overvoltages then occur which can be dangerous for the insulation integrity of the nonutility generator (NUG) equipment, the local loads and, even worse, for the maintenance personnel. Taking into account the nonlinear aspect of the transformer, simulation results also demonstrate that, after islanding, ferroresonance will occur when the generator voltage level exceeds the saturation voltage level of the transformer. The wave shapes being extremely distorted, this could cause the protective devices to respond incorrectly.
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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) | 0.000 | 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 it