Electrical and Mechanical Considerations in 765kV (Insulator) Hardware Assembly Design
Bibliographic record
Abstract
Starting in 1969, American Electric Power (AEP) built a 765kV transmission network that amounted to over 2,000 circuit miles by 1984. The system utilized four—conductor bundles of Rail and Dipper conductors. Operational experience with the network revealed issues around audible noise due to corona from the lines. In 1990, when the need arose to expand the network, it was decided that audible noise issues would be addressed by utilizing a new bundle design that consisted of a 6-conductor bundle using Tern conductors. The intent of the design change was to eliminate corona and thus resolve the audible noise issues associated with previous designs. The new design would also allow the use of non-ceramic insulators, which are susceptible to damage from long term exposure to corona. The move to the 6 x Tern phase bundle posed significant mechanical and electrical challenges to the engineers involved in hardware development. This paper describes the extensive electrical testing programs carried out to prove the performance of the new 6-conductor bundle design.
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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 | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 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".