High Resistance Grounding (HRG) and Adjustable Speed Drives (ASD)
Bibliographic record
Abstract
This paper provides an analysis of the use of a high resistance grounded (HRG) power system for supplying power to adjustable speed drive (ASD) loads. First, the paper provides a brief discussion on the use HRG on a power system and in particular to understand how the system works in the zero sequence plane. A path is required for the ground fault current to flow and an understanding of the path is better realized with the use of symmetrical components and the use of the zero sequence plane. Next, the paper will present a brief discussion on the use of a standard six-pulse rectifier which is commonly used on small, low and medium voltage drives. Using the basic understanding of the HRG system and the ASD, the flow of ground current from the load side of the ASD to the power system is shown. In particular, the paper will show that the ASD will most likely trip immediately for a ground fault due to the self-overload protection of the ASD whereby the system should continue to run using an HRG power system.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".