WO2006067594A1 - Dispositif de transport de courant haute intensite - Google Patents
Dispositif de transport de courant haute intensite Download PDFInfo
- Publication number
- WO2006067594A1 WO2006067594A1 PCT/IB2005/003841 IB2005003841W WO2006067594A1 WO 2006067594 A1 WO2006067594 A1 WO 2006067594A1 IB 2005003841 W IB2005003841 W IB 2005003841W WO 2006067594 A1 WO2006067594 A1 WO 2006067594A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bar
- sheath
- conductive bar
- protective sheath
- electric current
- Prior art date
Links
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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/10—Installations of electric cables or lines in or on the ground or water in cable chambers, e.g. in manhole or in handhole
-
- 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 electric power circuits placed under conditions of high temperature or high corrosion and particularly relates to a high intensity current carrying device.
- electrical power circuits are made of materials resistant to corrosion and / or temperature such as stainless steel, this to the detriment of electrical conduction. Indeed, the metals having a high conductivity like copper or aluminum degrade strongly above 300 0 C or in a corrosive medium and are therefore not used for this reason.
- a conductor carrying 1000 A weighs about 10 Kg per meter if it is made of copper with a section of 100 mm x 10 mm and about 150 Kg per meter if it is made of stainless steel for a section of 100 mm. x 150 mm.
- the object of the invention is to provide a current carrying device whose current exceeds 1000 A which, while not sensitive to corrosion due to high temperatures or a corrosive atmosphere, does not require to use a bar with too much section.
- the object of the invention is therefore a high intensity electrical current carrying device subjected to a temperature above 600 ° C or placed under high corrosion conditions, consisting mainly of a metal conductor bar having a lower resistivity. at 5.10 ⁇ 8 ⁇ m.
- the conductive bar is enclosed in a protective sheath made of a corrosion resistant metal such as stainless steel.
- a high intensity electric current carrying device is generally constituted by a cylindrical bar 10 shown in section in FIG. 1.
- the device according to the invention is partially in a corrosive zone while a part is in an outer zone. non-corrosive.
- the corrosive zone can be a zone where the temperature is high, for example greater than 600 0 C or an area subjected to high corrosion conditions such as a chlorine atmosphere or a corrosive liquid such as sodium hydroxide or an acid.
- a copper rod generally used to carry the electric current because the copper has a high conductivity, oxidizes very rapidly and the electrical conductivity of the bar decreases accordingly.
- a stainless steel bar can be used.
- the device 10 is a bar in two parts. It comprises a core which is a copper bar 12 placed in a protective sheath 14 of stainless steel or other metal or stainless alloy when it is placed in a corrosive zone such as an atmosphere at a temperature of 600 ° C. or higher separated from the outer zone by a partition 15.
- a first way is to slip the copper bar into the stainless steel sheath with as little play as possible. Then, the sheath is stretched strongly to reduce its diameter. In this way, the sheath is crimped on the copper core eliminating any gap between the core and the sheath.
- We can also practice a rollover which consists of crushing the sheath on the bar and thus remove all the interstices between the core and the sheath.
- Another method consists of evacuating the core or the sheath or putting an oxygen - free atmosphere such as a neutral gas such as argon.
- a plate of connection 16 for making the electrical connection with an element of a system using a high intensity electric current.
- a high intensity electric current can be an electrolysis device where it is usual to carry current whose intensity exceeds 1000 A.
- the connection plate 16 is generally attached to the element of the system establishing the electrical connection (not shown) to the using several screws 18.
- the copper plate 12 is partially fitted in the recess of the plate 16. In this way, it is possible to perform a weld 20 at the end of the recess, generally made of copper-aluminum alloy which allows an electrical connection between the bar of copper 12 and the connection plate 16.
- the next step is to perform sealing seals and at the same time to evacuate or inject a neutral gas such as argon between the copper bar 12 and the sheath 14, for example with the aid of one or more holes drilled in the sheath and which are then closed.
- a weld 22 is performed at the end of the recess in the plate 16 following the electrical connection 20.
- a welding cord 'of solder 24 is carried out at the entry of the bar 12 in the recess of the plate 16 and another cord 26 is made at the end of the sheath 14 in contact with the wall 15.
- connection plates 36 and 26 In the case where the current carrying device is located entirely in a corrosive zone, the arrangement is as shown in FIG. 2.
- the copper bar 32 surrounded by its stainless steel sheath 34 is placed between two connecting plates 36 and 36 'establishing the electrical connection " between two elements of the system
- an electrical connection weld and a sealing weld are made at each end of the bar 32 in the respective recesses.
- an inert gas is injected between the core 32 and the sheath 34 and weld beads 44 and 44 'are made at the ends of the sheath in contact respectively with the connecting plates.
- the principles of the invention can also be implemented when a main current carrying device is connected to a plurality of secondary current carrying devices as illustrated in FIG. 3.
- the copper main bar 50 is welded to the secondary bars 52, 54 and 56 respectively by welds 58, 60 and 62.
- These welds generally made of copper-aluminum alloy provide the electrical connection and the mechanical cohesion between the main bar and the secondary bars.
- a sheath 64 surrounds the bar 50 and an end plate 66 is fixed to the sheath by a sealing bead 68.
- the sheaths of the secondary bars such as the sheath 70 surrounding the bar 52 are connected to the sheath 64 of the main bar by cones, which facilitates the connection to the main sheath carried by sealing seams such as the weld seam 72 connecting the sheath 70 to the main sheath.
- a neutral gas such as argon is injected between the bar and its sheath, and this gas also fills the space between each cone formed by the sheath and the secondary bar.
Landscapes
- Arc Welding In General (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0413698 | 2004-12-22 | ||
FR0413698A FR2879849A1 (fr) | 2004-12-22 | 2004-12-22 | Dispositif de transport de courant haute intensite |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006067594A1 true WO2006067594A1 (fr) | 2006-06-29 |
Family
ID=34979230
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/003841 WO2006067594A1 (fr) | 2004-12-22 | 2005-12-21 | Dispositif de transport de courant haute intensite |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR2879849A1 (fr) |
WO (1) | WO2006067594A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2019289A (en) * | 1978-04-21 | 1979-10-31 | Takayasu K | Method of producing clad materials |
US5286925A (en) * | 1991-04-18 | 1994-02-15 | Solvay (Societe Annonyme) | Electrical conductor, process for manufacturing an electrical conductor and electrode for an electrolysis cell |
FR2716521A1 (fr) * | 1994-02-18 | 1995-08-25 | Gec Alsthom T & D Sa | Raccord angulaire. |
-
2004
- 2004-12-22 FR FR0413698A patent/FR2879849A1/fr active Pending
-
2005
- 2005-12-21 WO PCT/IB2005/003841 patent/WO2006067594A1/fr not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2019289A (en) * | 1978-04-21 | 1979-10-31 | Takayasu K | Method of producing clad materials |
US5286925A (en) * | 1991-04-18 | 1994-02-15 | Solvay (Societe Annonyme) | Electrical conductor, process for manufacturing an electrical conductor and electrode for an electrolysis cell |
FR2716521A1 (fr) * | 1994-02-18 | 1995-08-25 | Gec Alsthom T & D Sa | Raccord angulaire. |
Also Published As
Publication number | Publication date |
---|---|
FR2879849A1 (fr) | 2006-06-23 |
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