en passage en coupure

English translation: loop feed

15:36 Apr 4, 2021
French to English translations [PRO]
Tech/Engineering - Construction / Civil Engineering / Réseaux de distribution électriques
French term or phrase: en passage en coupure
Happy Easter everyone !
I am hoping that someone can help me with this expression. Context is a Project for the Rehabilitation and Extension of Electrical Networks.

"Consistance du projet
Fourniture et installation de :
54 postes MT/BT tous équipés de transformateurs de 630 KVA dont 13 *****en passage en coupure***** ;
18 Km de ligne aérienne de 20 kv en 148 mm2;
19 km de ligne aérienne de 20 kv en 54,6 mm2 ; 210 km de réseau BT pure 3x70+54+1x16mm2;..."

Any help would be greatly appreciated !
Cheers,
Jeff
Jeffrey Henson
France
Local time: 10:10
English translation:loop feed
Explanation:
Systems Configuration Section:
A loop system is fed by two different feeders – one connected to each end of the loop. Theoretically, the entire loop of transformers could be fed by either source, or the transformers can be split up between the two sources, depending on where an “open point” is created. In the event of a failed underground cable, this open point is “moved” (by using load-break switches or elbows), so that no customers are out of power while the cable is repaired.

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Note added at 15 hrs (2021-04-05 07:30:08 GMT)
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https://www.eaton.com/us/en-us/products/medium-voltage-power...

Under Section System configurations

''A Radial System employs one dedicated transformer to serve a customer or group of customers. The drawback is the fact that if there is a failure in the distribution line all of the customers downstream from the problem are without power.''


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Note added at 16 hrs (2021-04-05 07:38:55 GMT)
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For further readings, hook to the link below:
https://www.eaton.com/us/en-us/site-search.searchTerm$loop%20feed%20.tabs$all.html

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Note added at 17 hrs (2021-04-05 08:57:31 GMT)
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Or follow the path below:
1. //www.eaton.com/ 2. Go to products then to medium-voltage power distribution and control systems, then medium-voltage transformers and click on Learn more. Scroll down to System Configurations.

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Note added at 23 hrs (2021-04-05 14:41:18 GMT)
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Either A/ with 13 in loop feed configuration or B/ 13 of which are in loop feed configuration.
Selected response from:

Saeed Najmi
Morocco
Local time: 09:10
Grading comment
Thanks so much for your help, Saeed ! The end client confirmed that it was "connected in a loop configuration".
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1loop feed
Saeed Najmi
4connected in sequence or daisy-chain mode (or in line, or by tapping)
Johannes Gleim
3 -1switched
Bashiqa


Discussion entries: 9





  

Answers


6 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): -1
switched


Explanation:
Transformers complete with switching device for isolation of circuit.

Bashiqa
France
Local time: 10:10
Works in field
Native speaker of: Native in EnglishEnglish
PRO pts in category: 173
Notes to answerer
Asker: Thanks for your help, Bashiqa !


Peer comments on this answer (and responses from the answerer)
disagree  Tony M: Sorry Chris, this is a nice idea, but not what it actually means in this context. It's the 'passage en... that makes the difference here
20 mins
  -> Ooh, i`d better have a look once I`ve finished off the chocolate.
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6 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
loop feed


Explanation:
Systems Configuration Section:
A loop system is fed by two different feeders – one connected to each end of the loop. Theoretically, the entire loop of transformers could be fed by either source, or the transformers can be split up between the two sources, depending on where an “open point” is created. In the event of a failed underground cable, this open point is “moved” (by using load-break switches or elbows), so that no customers are out of power while the cable is repaired.

--------------------------------------------------
Note added at 15 hrs (2021-04-05 07:30:08 GMT)
--------------------------------------------------

https://www.eaton.com/us/en-us/products/medium-voltage-power...

Under Section System configurations

''A Radial System employs one dedicated transformer to serve a customer or group of customers. The drawback is the fact that if there is a failure in the distribution line all of the customers downstream from the problem are without power.''


--------------------------------------------------
Note added at 16 hrs (2021-04-05 07:38:55 GMT)
--------------------------------------------------

For further readings, hook to the link below:
https://www.eaton.com/us/en-us/site-search.searchTerm$loop%20feed%20.tabs$all.html

--------------------------------------------------
Note added at 17 hrs (2021-04-05 08:57:31 GMT)
--------------------------------------------------

Or follow the path below:
1. //www.eaton.com/ 2. Go to products then to medium-voltage power distribution and control systems, then medium-voltage transformers and click on Learn more. Scroll down to System Configurations.

--------------------------------------------------
Note added at 23 hrs (2021-04-05 14:41:18 GMT)
--------------------------------------------------

Either A/ with 13 in loop feed configuration or B/ 13 of which are in loop feed configuration.


    Reference: http://https://www.eaton.com/us/en-us/products/medium-voltag...
Saeed Najmi
Morocco
Local time: 09:10
Native speaker of: Native in ArabicArabic, Native in FrenchFrench
PRO pts in category: 8
Grading comment
Thanks so much for your help, Saeed ! The end client confirmed that it was "connected in a loop configuration".
Notes to answerer
Asker: Thanks so much for your help Saeed. So how should I phrase that in English : 54 MV/LV substations all equipped with 630 KVA transformers, - 13 of which have a loop feed configuration ? - including 13 loop feed transformers ? - something totally different ? Thanks again !


Peer comments on this answer (and responses from the answerer)
agree  Schtroumpf: This one seems to confirm your answer: https://webstore.iec.ch/p-preview/info_iec60598-1{ed7.0}b.pd...
2 days 21 hrs
  -> Thank you
Login to enter a peer comment (or grade)

1 day 2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
connected in sequence or daisy-chain mode (or in line, or by tapping)


Explanation:
I spent several hours first looking for references for this rare term and then for suitable translations for it. Most of the references referred to feedthroughs (bushings), which do not apply here. Finally, I got some circumscriptions.

Coffret de distribution type passage en coupure en charge PCC
https://www.groupe-cahors.com/fr-coteivoire/coffret-de-distr...
(Note: Example for non-pertinent applications)

Norme Française NF C 17-200
24 septembre 2016
C 17-200
Installations électriques extérieures
:
Figure 54D Mise à la terre par passage en coupure et connexion dans le CANDELABRE
Dans tous les cas, il est recommandé que la partie du conducteur assurant la mise à la terre du CANDELABRE située en dehors du sol ait une longueur suffisante afin de ne pas risquer d'être rompu en cas de renversement accidentel du CANDELABRE
https://docplayer.fr/74882403-Nf-c-septembre-2016-c.html
Note: Fig. 54 D shows all protective conductor terminals connected in series, i.e. that all terminals are connected by handing over the continuous protective earth conductor or by tapping or connecting the conductor in line or series.
I understand: Figure 54D Earthing by connecting the LIGHT POLES in line or sequence

Le branchement HT comprend : -le départ et la ligne aérienne raccordée soit à une centrale ou à une sous- station où la tension HT est disponible, soit en passage en coupure sur la ligne la plus proche, devant être équipée impérativement de protections de la ligne compatibles avec celles déjà existantes sur l’ensemble du réseau.
http://www.ore.mg/TextesDoc/Arrete_no86-88 MIEM.pdf

My approach: The HV connection includes: -the feeder and the overhead line connected either to a power plant or a substation where HV voltage is available, or by looping through (connecting) to the nearest line, which must be equipped with line protection compatible with that already existing on the entire network

A line tap is any connection made to a transmission or distribution power line in parallel called a feeder. It will have some sort of fused or breakered disconnect. Here is a schematic of a substation. I have circled in blue all the line taps.
https://www.quora.com/What-is-a-line-tap-For-example-may-a-s...

In electrical and electronic engineering, a daisy chain is a wiring scheme in which multiple devices are wired together in sequence or in a ring,[1] similar to a garland of daisy flowers. Other than a full, single loop, systems which contain internal loops cannot be called daisy chains.[citation needed]
Daisy chains may be used for power, analog signals, digital data, or a combination thereof.
https://en.wikipedia.org/wiki/Daisy_chain_(electrical_engine...
(Note: 'Daisy chain' is used mostly in electronics, but I consider it being applicable in our power electricity context as well)

A daisy chain connection has little resemblance to a daisy flower, at least not visually. In electronics, a daisy chain connection involves connecting multiple devices sequentially in an uninterrupted cable connection. Depending on the requirements, the last device on the loop may or may not connect to the first.
https://resources.altium.com/p/keep-petals-optimizing-daisy-...

The range of voltages in a power system varies from 110 V up to 765 kV. Transformation may take place in several stages and at several substations in sequence, …
https://academickids.com/encyclopedia/index.php/Electrical_s...

54 postes MT/BT tous équipés de transformateurs de 630 KVA dont 13 en passage en coupure;
=>
54 MV/LV substations all equipped with 630 KVA transformers, 13 of which are connected in sequence or daisy-chain mode;

Note: 'Connecting in line or series or sequence' or 'by tapping' may also work, but I consider the daisy-chain method being more figuratively.


Johannes Gleim
Local time: 10:10
Works in field
Native speaker of: German
PRO pts in category: 189
Notes to answerer
Asker: Thanks so much for you helpful links and all your research, Johannes !

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