traversée à partie intérieure courte [URGENT!]

English translation: short-tail bushing

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
French term or phrase:traversée à partie intérieure courte
English translation:short-tail bushing
Entered by: Tony M

06:27 Jun 14, 2020
French to English translations [PRO]
Tech/Engineering - Energy / Power Generation / High-voltage bushings
French term or phrase: traversée à partie intérieure courte [URGENT!]
I have this term in a set of specifications for HV bushings in power generation / transmission, etc.

It seems to be covered in NF C 52-062, of which according to AFNOR there is no international equivalent, and which sadly I can't find accessible on line.

I have found mentions of 'long-rod' bushings, so I would assume this is the opposite, a 'short-rod' bushing; the only problem is, I can't find any confirmation of this term at all! I'm beginning to suspect that the 'short' here simply opposes 'longer than usual', and so is just 'normal', and no-one but the French bother to give it a special name!
Tony M
France
Local time: 19:07
bushings with short oil ends
Explanation:
NF C52-062 Septembre 1993
Traversées à répartition capacitive immergées d'extérieur, 52 à 420 kV pour transformateurs ou bobines d'inductance immergés dans l'huile
La présente norme concerne les traversées à répartition capacitive immergées d'extérieur, de tension assignée 52 à 420 kV, destinées à des transformateurs ou bobines d'inductance immergés dans l'huile : à partie intérieure courte, avec isolation solide (papier enduit ou imprégné de résine synthétique), à partie intérieure courte, avec isolation en papier imprégné d'huile, à partie intérieure longue, avec isolation solide, à partie intérieure longue, avec isolation en papier imprégné d'huile.
https://www.boutique.afnor.org/norme/nf-c52-062/traversees-a...

NF C52-062:1993-09-01: Outdoor immersed capacitance graded bushings, 52 to 420 kV for oil immersed type transformers or reactors.
German title: KAPAZITIV GESTEUERTE FREILUFT-KESSEL-DURCHFÜHRUNG, 52 BIS 420 KV FÜR ÖLTRANSFORMATOREN ODER -DROSSELN.
https://www.beuth.de/en/standard/nf-c52-062/12371980

Traversées à répartition capacitive immergées d'extérieur, 52 kV à 420 kV pour transformateurs immergés dans l'huile
:
The purpose of this Technical Specification is to ensure the interchange ability between capacitance graded bushings, with comparable technical requirements, from different manufacturers.
:
Introduction 4
1 Scope 4
2 Normative references 4
3 Definitions 4
3.1 Draw-lead conductor 4
3.2 Solid rod conductor 4
3.3 Bottom terminal - current connection 5
4 Requirements 5
4.1 Application 5
4.2 Standard values of highest voltage for equipment (U ) 5
4.3 Standard values of rated current (I ) 5
4.4 Compliance 5
4.4.1 Test tap 5
4.4.2 Creepage distance 5
4.4.3 Insulating level 5
4.4.4 Operating conditions, test requirements 5
4.5 Additional requirements 5
4.6 Designation 6
4.6.1 Electrical design of oil end 6
4.6.2 Conductor principles and mechanical design of oil end 6
4.6.3 Conductor arrangement 6
4.6.4 Complete bushing designation 7
4.7 Design details 8
Annex A (informative) Example of bushing documentation 17
Figure 1 – Bushing dimensions (general) 8
Figure 2 – Bushing oil end dimensions 9
Figure 3 – Examples of current leader principles and mechanical design of oil end 10
https://standards.iteh.ai/catalog/standards/clc/79dda98e-32b...
(Unfortunately the text ends with par. 4.4.4.

Fig. 1 shows an example of a completely immersed bushing of this kind. Transformer bushings where only the bottom end enters the oil are better from the thermal aspect. If this section is made short and steps are taken to prevent the heat from traveling

Fig. 1. 420-kV resin-bonded paper bushing with short conical ends immersed entirely in oil (for transformers with cable boxes).
:
Concerning the short oil ends, it is true to say that in an oil-impregnated paper bushing the edges of the condenser layers are already in contact with oil and therefore offer the same advantages as the conical ends of a resin-bonded paper bushing. However, the difficulties lie in finding a short end porcelain which will hold along its surfaces in oil the breakdown voltages indicated in curve 2 of Fig. 2.
:
Fig. 4 shows a transformer bushing for a system voltage of 1050 kV which, in addition to withstanding the power-frequency voltage of 1200 kV (rms, 1 minute), was also subjected to full-wave standard impulses of 3050 kV and to chopped waves of 3500 kV.

Fig. 4. Transformer bushing for 1050-kV systems. Multicore resin-paper body with short conical lower end.
https://fdocuments.in/document/resin-bonded-paper-bushings-f...
Selected response from:

Johannes Gleim
Local time: 19:07
Grading comment
Thanks a lot, Johannes! In the end, I found the term elsewhere, but your help definitely pointed me in the right direction!
2 KudoZ points were awarded for this answer



Summary of answers provided
4 +1bushings with short oil ends
Johannes Gleim
2 -2crossed at short interior part
Lisa Rosengard


  

Answers


5 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
bushings with short oil ends


Explanation:
NF C52-062 Septembre 1993
Traversées à répartition capacitive immergées d'extérieur, 52 à 420 kV pour transformateurs ou bobines d'inductance immergés dans l'huile
La présente norme concerne les traversées à répartition capacitive immergées d'extérieur, de tension assignée 52 à 420 kV, destinées à des transformateurs ou bobines d'inductance immergés dans l'huile : à partie intérieure courte, avec isolation solide (papier enduit ou imprégné de résine synthétique), à partie intérieure courte, avec isolation en papier imprégné d'huile, à partie intérieure longue, avec isolation solide, à partie intérieure longue, avec isolation en papier imprégné d'huile.
https://www.boutique.afnor.org/norme/nf-c52-062/traversees-a...

NF C52-062:1993-09-01: Outdoor immersed capacitance graded bushings, 52 to 420 kV for oil immersed type transformers or reactors.
German title: KAPAZITIV GESTEUERTE FREILUFT-KESSEL-DURCHFÜHRUNG, 52 BIS 420 KV FÜR ÖLTRANSFORMATOREN ODER -DROSSELN.
https://www.beuth.de/en/standard/nf-c52-062/12371980

Traversées à répartition capacitive immergées d'extérieur, 52 kV à 420 kV pour transformateurs immergés dans l'huile
:
The purpose of this Technical Specification is to ensure the interchange ability between capacitance graded bushings, with comparable technical requirements, from different manufacturers.
:
Introduction 4
1 Scope 4
2 Normative references 4
3 Definitions 4
3.1 Draw-lead conductor 4
3.2 Solid rod conductor 4
3.3 Bottom terminal - current connection 5
4 Requirements 5
4.1 Application 5
4.2 Standard values of highest voltage for equipment (U ) 5
4.3 Standard values of rated current (I ) 5
4.4 Compliance 5
4.4.1 Test tap 5
4.4.2 Creepage distance 5
4.4.3 Insulating level 5
4.4.4 Operating conditions, test requirements 5
4.5 Additional requirements 5
4.6 Designation 6
4.6.1 Electrical design of oil end 6
4.6.2 Conductor principles and mechanical design of oil end 6
4.6.3 Conductor arrangement 6
4.6.4 Complete bushing designation 7
4.7 Design details 8
Annex A (informative) Example of bushing documentation 17
Figure 1 – Bushing dimensions (general) 8
Figure 2 – Bushing oil end dimensions 9
Figure 3 – Examples of current leader principles and mechanical design of oil end 10
https://standards.iteh.ai/catalog/standards/clc/79dda98e-32b...
(Unfortunately the text ends with par. 4.4.4.

Fig. 1 shows an example of a completely immersed bushing of this kind. Transformer bushings where only the bottom end enters the oil are better from the thermal aspect. If this section is made short and steps are taken to prevent the heat from traveling

Fig. 1. 420-kV resin-bonded paper bushing with short conical ends immersed entirely in oil (for transformers with cable boxes).
:
Concerning the short oil ends, it is true to say that in an oil-impregnated paper bushing the edges of the condenser layers are already in contact with oil and therefore offer the same advantages as the conical ends of a resin-bonded paper bushing. However, the difficulties lie in finding a short end porcelain which will hold along its surfaces in oil the breakdown voltages indicated in curve 2 of Fig. 2.
:
Fig. 4 shows a transformer bushing for a system voltage of 1050 kV which, in addition to withstanding the power-frequency voltage of 1200 kV (rms, 1 minute), was also subjected to full-wave standard impulses of 3050 kV and to chopped waves of 3500 kV.

Fig. 4. Transformer bushing for 1050-kV systems. Multicore resin-paper body with short conical lower end.
https://fdocuments.in/document/resin-bonded-paper-bushings-f...

Johannes Gleim
Local time: 19:07
Specializes in field
Native speaker of: German
PRO pts in category: 56
Grading comment
Thanks a lot, Johannes! In the end, I found the term elsewhere, but your help definitely pointed me in the right direction!

Peer comments on this answer (and responses from the answerer)
agree  Schtroumpf: Je pense qu'on ne trouvera pas mieux sur la toile !
20 mins
  -> Merci !
Login to enter a peer comment (or grade)

16 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5 peer agreement (net): -2
crossed at short interior part


Explanation:
From the given information I understand it's about oil, transmissions and paper soaked in a resin, but 'traversée' means that something has crossed at a short interior part.

--------------------------------------------------
Note added at 16 hrs (2020-06-14 22:42:10 GMT)
--------------------------------------------------

It can also mean 'traveled at short interior part'.

Lisa Rosengard
United Kingdom
Local time: 18:07
Native speaker of: English
PRO pts in category: 3
Notes to answerer
Asker: Thanks for trying to help, but this is the sort of question that requires actual specialist technical knowledge of the field.


Peer comments on this answer (and responses from the answerer)
disagree  AllegroTrans: the asker is not looking for a word by word translation; this a technical TERM not dictionary lookup (unless maybe in a specialist engineering dictionary)
15 hrs

disagree  Schtroumpf: La "traversée" est bien un substantif et non pas un participe !!
1 day 9 hrs
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