EP0511609A1 - Power supply cable for arc furnaces - Google Patents
Power supply cable for arc furnaces Download PDFInfo
- Publication number
- EP0511609A1 EP0511609A1 EP92107136A EP92107136A EP0511609A1 EP 0511609 A1 EP0511609 A1 EP 0511609A1 EP 92107136 A EP92107136 A EP 92107136A EP 92107136 A EP92107136 A EP 92107136A EP 0511609 A1 EP0511609 A1 EP 0511609A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- terminal
- tube
- bush
- head
- 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- Withdrawn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
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/11—Arrangements for conducting current to the electrode terminals
Definitions
- the present invention relates to a power supply cable for arc furnaces.
- Said cables comprise a plurality of water-cooled plaits which conduct the electric current, are connected to two terminals and are contained in a tube which is made of an elastic material, such as rubber, extending from one of said terminals to the other.
- said rubber tube is clamped at its ends on heads which are comprised within the terminals, so that it cannot perform any movement with respect to said heads, and this fact is the cause of rather unsatisfactory functional situations.
- the aim of the present invention is therefore to provide a power supply cable for arc furnaces which allows to obtain improved functional conditions but maintains great constructive simplicity.
- a power supply cable for arc furnaces which comprises water-cooled current-conductive plaits which are connected to two terminals and are contained in a tube which is made of a rubber-like material extending from one of said terminals to the other, characterized in that said tube is clamped, at at least one terminal, on a bush which is associated with a head of said terminal so that it can rotate.
- the reference numeral 1 generally designates a power supply cable for an arc furnace, which is intended to connect the output of a current transformer 2 to an electrode-carrying arm 3.
- terminal 4 of the cable 1 which is connected to the output of the transformer 2 is of a conventional type
- terminal 5 connected to the electrode-carrying arm 3 is executed according to the invention and is described in detail with reference to figure 1.
- the head generally designated by the reference numeral 6, which comprises a milled portion 6a which has a rectangular cross-section, a cylindrical portion 6b, a first ridge 6c and a second ridge 6d to which the current-conductive plaits, such as 7, converge.
- the reference numeral 8 furthermore designates a tube, made of an elastic material such as rubber, which extends from one to the other of said terminals 4 and 5 of the cable 1 while it is locked on the head of the terminal 4 in a conventional manner, so that it is unable to perform any movement with respect thereto, it is associated with the head 6 of the terminal 5 with the interposition of the bush 9, which is suitable for rotating about the axis of the portion 6b of said head.
- said tube 8 is locked on the outer surface of the bush 9 by means of the clamps 10, 11 and 12 which are arranged at regions delimited by the circumferential ridges provided on said surface.
- the reference numeral 15 designates a non-magnetic steel ring which is inserted between the brass bush 9 and the ridge 6c of the head 6, which is made of copper, in order to protect the surfaces of said elements against excessively rapid wear.
- the tube 8 is thus not subjected to torsion, as occurs in known cables, and this leads to greater durability of said tube and to a reduction of the stresses induced in the structures of the furnace; possible negative effects of the torsion of the tube 8 on the assembly of the electric power-conductive plaits are also eliminated.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMN910014U | 1991-04-29 | ||
| IT91MN000014U IT225350Y1 (it) | 1991-04-29 | 1991-04-29 | Cavo di alimentazione per forni ad arco |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0511609A1 true EP0511609A1 (en) | 1992-11-04 |
Family
ID=11384282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92107136A Withdrawn EP0511609A1 (en) | 1991-04-29 | 1992-04-27 | Power supply cable for arc furnaces |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0511609A1 (it) |
| IT (1) | IT225350Y1 (it) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3002534A1 (de) * | 2014-10-02 | 2016-04-06 | ALD Vacuum Technologies GmbH | Umschmelzofen mit einer wägezelle |
| CN105811130A (zh) * | 2016-05-23 | 2016-07-27 | 苏州宝联重工股份有限公司 | 一种水冷电缆用接头及采用该接头的短网结构 |
| DE102017130637B3 (de) * | 2017-12-20 | 2018-11-08 | Arndt Dung | Hochstromkabel zur elektrisch leitenden Kontaktierung eines Elektrodentragarms eines elektrisch betriebenen Ofens |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2353364A1 (de) * | 1973-10-25 | 1975-05-07 | Kabel Metallwerke Ghh | Fluessigkeitsgekuehltes hochstromkabel mit dreh- oder schwenkbarem aussenmantel |
| DE2357674A1 (de) * | 1973-11-19 | 1975-05-22 | Daniel J Goodman | Kabelanschluss |
| US3917898A (en) * | 1971-10-22 | 1975-11-04 | Showa Electric Wire & Cable Co | Water-cooled cable |
| US3983310A (en) * | 1975-04-21 | 1976-09-28 | Kabel-Und Metallwerke Gutehoffnungshutte Aktiengesellschaft | Connection between a socket and a liquid cooled cable |
| EP0408476A2 (fr) * | 1989-07-13 | 1991-01-16 | Erico France S.A.R.L. | Câble d'alimentation électrique à refroidissement par fluide interne |
-
1991
- 1991-04-29 IT IT91MN000014U patent/IT225350Y1/it active IP Right Grant
-
1992
- 1992-04-27 EP EP92107136A patent/EP0511609A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917898A (en) * | 1971-10-22 | 1975-11-04 | Showa Electric Wire & Cable Co | Water-cooled cable |
| DE2353364A1 (de) * | 1973-10-25 | 1975-05-07 | Kabel Metallwerke Ghh | Fluessigkeitsgekuehltes hochstromkabel mit dreh- oder schwenkbarem aussenmantel |
| DE2357674A1 (de) * | 1973-11-19 | 1975-05-22 | Daniel J Goodman | Kabelanschluss |
| US3983310A (en) * | 1975-04-21 | 1976-09-28 | Kabel-Und Metallwerke Gutehoffnungshutte Aktiengesellschaft | Connection between a socket and a liquid cooled cable |
| EP0408476A2 (fr) * | 1989-07-13 | 1991-01-16 | Erico France S.A.R.L. | Câble d'alimentation électrique à refroidissement par fluide interne |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3002534A1 (de) * | 2014-10-02 | 2016-04-06 | ALD Vacuum Technologies GmbH | Umschmelzofen mit einer wägezelle |
| CN105811130A (zh) * | 2016-05-23 | 2016-07-27 | 苏州宝联重工股份有限公司 | 一种水冷电缆用接头及采用该接头的短网结构 |
| DE102017130637B3 (de) * | 2017-12-20 | 2018-11-08 | Arndt Dung | Hochstromkabel zur elektrisch leitenden Kontaktierung eines Elektrodentragarms eines elektrisch betriebenen Ofens |
| EP3503683A1 (de) * | 2017-12-20 | 2019-06-26 | Arndt Dung | Hochstromkabel zur elektrisch leitenden kontaktierung eines elektrodentragarms eines elektrisch betriebenen ofens |
Also Published As
| Publication number | Publication date |
|---|---|
| IT225350Y1 (it) | 1996-11-06 |
| ITMN910014V0 (it) | 1991-04-29 |
| ITMN910014U1 (it) | 1992-10-29 |
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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 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19930325 |
|
| 17Q | First examination report despatched |
Effective date: 19940110 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
| 18W | Application withdrawn |
Withdrawal date: 19950731 |