EP1386380A1 - Canalisation electrique - Google Patents
Canalisation electriqueInfo
- Publication number
- EP1386380A1 EP1386380A1 EP02732850A EP02732850A EP1386380A1 EP 1386380 A1 EP1386380 A1 EP 1386380A1 EP 02732850 A EP02732850 A EP 02732850A EP 02732850 A EP02732850 A EP 02732850A EP 1386380 A1 EP1386380 A1 EP 1386380A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- section
- cross
- conductive
- pipe according
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 15
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
Definitions
- the present invention relates to an electrical transport and distribution pipe composed of several metallic, rigid, parallel electrical conductors, spaced apart from one another inside a metallic envelope and the shape of the conductors of which optimizes heat exchange. with the external medium through the metallic envelope.
- Transport and distribution systems for electrical energy by prefabricated electrical pipes are well known. Their function is on the one hand the transport of electrical energy from one point to another in an installation, for example from an electrical panel to another electrical panel, and on the other hand the distribution of this electrical energy for the various receivers distributed along the pipeline, by proposing regularly spaced fixed connection points. The receivers are then supplied by means of junction boxes connected to these connection points. In addition, it is often asked that the installation and removal of a junction box can be done easily without cutting the electrical supply of the pipes according to a type of connection of the "plug-in" type.
- There is a first technology for producing such a prefabricated electrical pipe in which the parallel conductors of the pipe are insulated and pressed against each other in a metal casing.
- This first technology makes it possible to reduce the reactance of the prefabricated electrical pipe and provides better heat exchange with the outside, in particular for high intensities, such as those greater than 1000A.
- plug-in type connections it becomes necessary to separate the conductors from each other at least on part of the pipe.
- the parallel conductors are spaced from each other in the envelope.
- This second technology increases the reactance of the electrical pipe and makes the heat exchange with the outside less efficient, on the other hand it makes it much easier to install and remove junction boxes following a plug-in type connection. It is therefore proposed to improve the heat exchange with the outside, in electrical conduits comprising spaced conductors.
- This exchange is made by convection but especially by radiation from the conductors. This radiation depends on the thermal emissivity of the surfaces of the emitting material (forming the conductors) and of the receiving material (forming the envelope), on the size of the surfaces of the materials, but also depends on a form factor between the conductors and the metal casing.
- the form factor between two surfaces defines the respective positioning of the two surfaces with respect to each other. The more the surfaces are facing each other, the better the form factor.
- the conductors of this type of electrical pipe have a substantially rectangular cross section and are placed one next to the other, their main faces being in facing relation to each other.
- the form factor between the conductors and the metal envelope is therefore very low, in particular for the external conductors which are not located at the periphery.
- the object of the invention is to modify the shape of the cross section of the conductors to improve the form factor of these conductors with the envelope and therefore the heat exchange between conductors and envelope, without penalizing the overall size of the pipe (that is to say without increasing the distance between each conductor for example) and without increasing the cross section of the conductors of the pipeline, this so as to be able to keep the same boxes and the same envelopes.
- the invention describes an electrical transport and distribution pipe made up of several rigid, parallel metallic conductive bars, spaced from one another inside a metallic envelope and spaced from the metallic envelope, each conductive bar having an elongated cross section with a first main face and a second main face.
- the cross section of at least one conductive bar of the electrical pipe has a thickness measured in the vicinity of the center of the cross section which is greater than the thickness measured at at least one of the two ends of the cross section.
- the cross section of at least one conductive bar of the electrical pipe has a thickness in the vicinity of the center of the cross section which is greater than the thicknesses of the two ends of the cross section.
- the cross section of at least one busbar of the electrical pipe has a thickness at a first end of the cross section which is greater than a thickness at a second opposite end of the cross section.
- the cross section of at least one conductive bar has a first main face comprising two parts in the shape of an enlarged V.
- the cross section of at least one conductive bar has a first main face of convex shape.
- the cross section of at least one conductive bar has a shape symmetrical with respect to a transverse axis passing through said conductive bar in a direction parallel to the width of said conductive bar.
- all the conductive bars of a pipe have a cross section of identical shape.
- FIG. 1 shows a pipe comprising four conductive bars according to l prior art
- FIG. 2 represents a pipe comprising four conducting bars according to the present invention
- FIG. 3 shows different examples of cross sections of busbars.
- Figure 1 shows a prefabricated electrical pipe 10 'according to the prior art comprising four conductive bars 20', 30 ', 40', 50 'in a closed metal casing 11' of substantially rectangular cross section.
- the four conductive bars are rigid, parallel, spaced from each other and spaced from the casing 11 '.
- the cross section S '(hereinafter called cross section) of all these conductive bars is substantially rectangular and comprises, for example for the bar 20', two main opposite faces 21 ', 22', rectilinear and parallel situated between two opposite short faces 23 ′, 24 ′, rectilinear and perpendicular to the main faces.
- the rectangular shape of the cross sections of the bars in such a pipe 10 'does not always allow efficient heat exchange between the conductive bars and the metal casing 11' for the heat radiated by the bars when the latter are traversed by an electric current. .
- FIG. 2 represents a prefabricated electrical pipe 10 according to the invention comprising four conductive bars 20,30,40,50 in a metal casing 11. These conductive bars can for example carry a neutral N and three phases L1, L2, L3.
- the four conductive bars are rigid, parallel, spaced from one another and spaced from the envelope 11.
- the envelope has a cross section of substantially rectangular shape comprising four interior walls 12,13,14,15: two main walls 14, 15 parallel and two secondary walls 12,13 parallel and substantially orthogonal with the main walls 14,15.
- the cross section S (straight section) of the busbars 20, 30, 40, 50 has a width L and a variable thickness E1, E2, E3 measured respectively in the vicinity of the center and at the two ends of the cross section S.
- This section S is of elongated shape and the value L of the width (see the different examples in FIG. 3) is therefore greater than the different values E1, E2, E3 of the thickness.
- the section S comprises a first main face 21 and a second main face 22 opposite, located between two opposite short faces, these faces being preferably smooth.
- the short faces of a busbar are flat or rounded and can be substantially parallel to the main walls 14,15 of the envelope, as in the example of FIG. 2.
- two external bars 20.50 one of the main faces of which is opposite a secondary wall 12, 13 of the envelope , frame one or more central bars 30,40, the two main faces of which face a main face of another bar.
- the object of the invention is to increase the form factor between at least one main face of one or more conductive bars 20,30,40,50 and at least one inner main wall 14,15 of the metal casing 11 , so as to improve the heat exchange between the busbars and the metal casing of the pipe.
- This object is achieved by modifying the rectangular shape of the prior art of the cross section S 'of at least one conductive bar.
- the cross section S of at least one conductive bar 20, 30, 40, 50 of the electrical pipe 10 has a thickness E1 in the vicinity of the center of the cross section S which is greater than l thickness E2, E3 of at least one of the ends of the cross section S.
- the various examples of FIG. 3 show several embodiments of the invention.
- the thickness E1 measured in the vicinity of the center of the cross section of a busbar 300, is greater than the thicknesses E2, respectively E3, measured at the ends 302, respectively 303, of the cross section of said conductive bar 300.
- the thickness E2, measured at a first end 202 of the cross section of a conductive bar 200 is greater than the thickness E3, measured at a second opposite end 203 of the cross section of said conductive bar 200.
- FIG. 3 shows an example of this embodiment in which a conductive bar 200 has two main rectilinear faces 210,220. Since the thicknesses E2 and E3 at the ends 202, 203 are different, then at least one of the main faces 210, 220 is not orthogonal to the main walls 14, 15 of the envelope 11.
- a first variant shows a conductive bar 300 which has a cross section of which a first main face 310 consists of two parts 311 and 312 forming an enlarged V, thus giving the cross section of the bar 300 a shape of pentagon with a maximum thickness E1 near the center.
- the parts 311 and 312 are flat and of identical size, but one could also consider two parts 311 and 312 of different lengths in an equivalent manner.
- the cross section of a conductive bar 500 may have a symmetrical shape with respect to a transverse axis X.
- This transverse axis X crosses the cross section of said conductive bar 500 in a direction parallel to the width L of the closed off.
- This variant may be advantageous in particular for median conductive bars 30.40 of a pipe 10, none of the main faces of which is opposite the secondary walls 12, 13 of the envelope 11.
- the cross section of a conductive bar 600,400 has a first main face of convex shape.
- this first main face can be either rounded 410 or polygonal 610.
- the cross section of a conductive bar 20,300 has one of its main faces 22,320 which is straight and parallel to the transverse axis X, that is to say parallel to the secondary walls 12,13 of the envelope 11.
- said straight main face of the external bars 20.50 is directed towards the exterior of the casing 11 so as to be positioned opposite the secondary walls 12, 13 of the casing 11 which are also planar.
- this concavity 720 will make it possible to compensate for this convexity in order to increase the isolation distance between bars conductive, without changing the overall dimensions of the casing 11 of the pipe 10.
- At least one of the main faces is no longer orthogonal to the main walls 14, 15 of the casing 11, but has an angle of inclination which leads to an increase in the form factor between the busbar and the main walls 14.15. Therefore, the heat radiated by such a conductive bar during the circulation of a current is therefore no longer directed directly towards an adjacent conductive bar, but is partly diverted towards the walls 14, 15 of the envelope 11 , which allows a much better heat exchange between conductive bars and casing.
- This advantage then allows, for an identical dimension of the pipe, that is to say in particular for a cross-sectional area S of the conductive bars identical to the area of a section S ', to pass a higher current through the electrical pipe 10 as in the electrical pipe 10 'according to the prior art.
- the busbars 20, 30, 40, 50 of the same pipe 10 may have a cross section S of identical shape, as shown in Figure 2.
- the neutral bar conveying the neutral N gives off less heat than the other conductive bars conveying a phase L1, L2, L3, it is preferable that this neutral conductive bar is located next to a conductive bar of phase whose straight main face will be opposite neutral N to improve heat exchange.
- the neutral bar N corresponds to the conductive bar 20 so that the adjacent conductive bar 30 (phase L1, for example) has its straight main face 32 located opposite the bar 20. It is understood that one can, without departing from the scope of the invention, imagine other variants and refinements of detail and even consider the use of equivalent means.
Landscapes
- Patch Boards (AREA)
- Installation Of Bus-Bars (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0106347 | 2001-05-11 | ||
| FR0106347A FR2824676B1 (fr) | 2001-05-11 | 2001-05-11 | Canalisation electrique |
| PCT/FR2002/001554 WO2002093707A1 (fr) | 2001-05-11 | 2002-05-07 | Canalisation electrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1386380A1 true EP1386380A1 (fr) | 2004-02-04 |
Family
ID=8863262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02732850A Withdrawn EP1386380A1 (fr) | 2001-05-11 | 2002-05-07 | Canalisation electrique |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20040118589A1 (fr) |
| EP (1) | EP1386380A1 (fr) |
| FR (1) | FR2824676B1 (fr) |
| WO (1) | WO2002093707A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5424466B2 (ja) * | 2009-05-18 | 2014-02-26 | 矢崎総業株式会社 | バッテリ接続プレートの合成樹脂製基板部に収納されるバスバーおよびその合成樹脂製基板部 |
| DE102010050654B4 (de) * | 2010-11-09 | 2017-03-16 | Abb Ag | Anordnung von Leitern zum Anschluss eines Leistungsschalters |
| WO2015042927A1 (fr) * | 2013-09-29 | 2015-04-02 | Abb Technology Ltd | Barre omnibus principale, barre omnibus de dérivation, connecteur de transfert et jeu de barres omnibus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1574993A (en) * | 1920-09-24 | 1926-03-02 | Westinghouse Electric & Mfg Co | Bus bar |
| US2372155A (en) * | 1942-03-31 | 1945-03-20 | R E Kramig & Company Inc | Dissipation of heat from bus bars |
| US3088994A (en) * | 1958-11-10 | 1963-05-07 | Ite Circuit Breaker Ltd | Clamped busway structure |
| US3088944A (en) * | 1960-11-30 | 1963-05-07 | Takeda Chemical Industries Ltd | Pyrazole derivatives in the pregnane series |
-
2001
- 2001-05-11 FR FR0106347A patent/FR2824676B1/fr not_active Expired - Fee Related
-
2002
- 2002-05-07 WO PCT/FR2002/001554 patent/WO2002093707A1/fr not_active Ceased
- 2002-05-07 US US10/476,499 patent/US20040118589A1/en not_active Abandoned
- 2002-05-07 EP EP02732850A patent/EP1386380A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02093707A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040118589A1 (en) | 2004-06-24 |
| WO2002093707A1 (fr) | 2002-11-21 |
| FR2824676B1 (fr) | 2004-01-16 |
| FR2824676A1 (fr) | 2002-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20031006 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BACHA, ZINE Inventor name: DUPOUX, CHRISTIAN Inventor name: PIERROT, HENRI |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BACHA, ZINE Inventor name: DUPOUX, CHRISTIAN Inventor name: PIERROT, HENRI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SCHNEIDER ELECTRIC INDUSTRIES SAS |
|
| 17Q | First examination report despatched |
Effective date: 20110308 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20110719 |