A negative-sequence based method for fault passage identification
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Reliable fault indication is crucial in any distribution feeder management system. A distribution line protective device can use different algorithms to detect whether or not it is in the fault path. When the downstream fault involves all three phases, detection is typically easy to achieve and phase elements are sufficient. Single line to ground faults cannot always be treated in the same manner, as ground sources are prevalent throughout the grid. In these cases, directionality (achieved by voltage polarization) is required. However, the requirement of both current and voltage measurements could render the solution cost prohibitive. If voltage is not available, detection may fail. Hence, there is the need for a simple but reliable ground fault indicator which is based on current measurements solely. This paper proposes the use of negative-sequence current to achieve this purpose. It is inspired by the fact that there is only one source of negative-sequence currents in a radial system. The proposed settings were implemented in large scale in the city of Fort McMurray throughout ATCO Electric's DSCADA devices. Such inputs are used by the feeder automation system to reconfigure the system automatically in case of permanent outages.
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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