CN2650299Y - Low-loss power cable - Google Patents
Low-loss power cable Download PDFInfo
- Publication number
- CN2650299Y CN2650299Y CN 03248656 CN03248656U CN2650299Y CN 2650299 Y CN2650299 Y CN 2650299Y CN 03248656 CN03248656 CN 03248656 CN 03248656 U CN03248656 U CN 03248656U CN 2650299 Y CN2650299 Y CN 2650299Y
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- Prior art keywords
- conductor
- layer
- loss power
- low
- cable
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- Expired - Fee Related
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- 239000010410 layer Substances 0.000 claims abstract description 35
- 230000000694 effects Effects 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000011229 interlayer Substances 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 7
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009954 braiding Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 230000002500 effect on skin Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a low-loss power cable which comprises conductive bodies, an interlayer insulation, a conductive body shielding layer, an insulating layer, an insulating shielding layer, a metal shielding layer and an outer sheath, wherein a multi-core cable is formed from two or more than two insulating wire cores; the periphery of the wire core is provided with a filling rope, and the outer part of the filling rope is orderly provided with an inner sheath layer, the metal shielding layer and an outer sheath layer. Insulating media which separate the conductive bodies are clamped among bunch stranding conductive body layers of the utility model in a winding mode. Thereby, the utility model can effectively reduce the energy source loss caused by the skin effect and the proximity effect of an electric conducting wire core. The utility model is favorable for the energy-saving and high-efficiency operation of electrical equipment.
Description
Technical field
The utility model belongs to the power cable technical field, and specifically, the utility model relates to a kind of low-loss power cable.
Background of invention
In the conventional power cable structure, conductor wire core is generally restrainted the structure that tangles in employing below 800 square millimeters, adopt the milliken conductor structure more than 800 square millimeters, because copper, 25 square millimeters of aluminium cables and following cross-sectional area of conductor, skin effect coefficient is below 0.01%, promptly ten thousand/, can ignore, when sectional area reached 630 square millimeters, skin effect coefficient can reach 6% (copper), 2.2% (aluminium).So generally can adopt milliken conductor more than 800 square millimeters for copper conductor.Single-core cable proximity effect for routine is very little, but the proximity effect of three-core cable is bigger, and the proximity effect of copper conductor cable that for cross-sectional area of conductor is 630 square millimeters is up to 7.35%.Particularly in the bundle twisted wire is in than strong magnetic field circumstance or cross section when big, the caused loss of the kelvin effect of conductor wire core self and proximity effect also can cause bigger energy waste, is unfavorable for energy-conservation, the efficient operation of electric equipment.
Amass at the three-core cable that is generally more than 25 square millimeters for the conventional electric power cross-section of cable, from the above, proximity effect is more remarkable.Simultaneously, as the cable of ac transmission, the kelvin effect of larger cross-section conductor is also very remarkable.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned weak point of the prior art, and a kind of low-loss power cable is provided, and effectively solves proximity effect, the kelvin effect of cable, to reduce the loss in the transmission of electricity process.
The technical scheme that this technical problem that solves the utility model adopts is that this low-loss power cable comprises conductor (1), insulating barrier (4), folder insulating medium layer (2) around between conductor layer between the bundle strand conductor layer that conductor (1) forms is conductor shield (3), insulating barrier (4) outside conductor.Outside insulating barrier (4), also have insulation screen (5), metal screen layer (6), oversheath (7), form an insulated wire cores single-core cable thus.Form multicore cable by this insulated wire cores more than 2 or 2, around the insulated wire cores gasket for packing is arranged, inner restrictive coating, metal armouring layer and external sheath layer are arranged outside the gasket for packing successively.
Folder is around dielectric between the utility model bundle strand conductor layer, separate conductor, can reduce the kelvin effect and the caused energy loss of proximity effect of conductor wire core self effectively, help the energy-conservation, efficient of electric equipment, its sectional area of the conductor wire core of low-loss power cable (being made up of conductor part) can be between 25～3000 square millimeters.
Description of drawings
Fig. 1 low-loss single-core power cables figure
Fig. 2 low-loss single-core power cables shaft side figure
Fig. 3 embodiment three insulated wire cores power cable structure charts
Among the figure: the 1-conductor; The 2-interlayer insulating film; The 3-conductor shield; The 4-insulating barrier; The 5-insulation screen; The 6-metal screen layer; 7-oversheath 8-insulated wire cores (being 1～6 insulated wire cores that constitutes among Fig. 1); The 9-gasket for packing; The 10-inner restrictive coating; 11-metal armouring layer; The 12-oversheath
Embodiment
The insulated wire cores of cable is followed successively by as shown in Figure 1 from inside to outside: conductor (1), interlayer insulating film (2), conductor (1) layer, interlayer insulating film (2), conductor (1) layer, conductor shield (3), insulating barrier (4), insulation screen (5), metal screen layer (6), oversheath (7).The material of cable interlayer insulating film (2) medium can be dielectrics such as polymer with certain electric strength, stationery.The outermost layer conductor directly contacts with conductor shield (3), to play the effect of equivalent potential screen.The conductor wire core sectional area of low-loss power cable can be between 25～3000 square millimeters.
Conductor interlayer insulating film (2) can be applied in single core, two cores, three cores, four-core, the five core conductor constructions of cable.Fig. 3 is that a kind of three insulated wire cores (being 1～6 insulated wire cores that constitutes among Fig. 1) power cable structure is implemented illustration, insulated wire cores (8) has gasket for packing (9) on every side, and inner restrictive coating (10), metal armouring layer (11) and external sheath layer (12) are arranged outside the gasket for packing (9) successively.Conductor (1) material can be copper or aluminium.The metal screen layer of this cable insulation core (6) is to be made of copper strips or copper wire braiding.
In the utility model bundle strand conductor folder around the layer insulation medium, play the effect of separating conductor, make the cylinder solid be separated into the concentric column hollow body, this new structure has just determined conductor can reduce conductor wire core kelvin effect and the caused energy loss of proximity effect effectively, heavy in section or when being in high-intensity magnetic field, effect can be more remarkable particularly.
Claims (9)
1, a kind of low-loss power cable, comprise conductor (1), insulating barrier (4), it is characterized in that the bundle that conductor (1) forms twists folder insulating medium layer (2) around between conductor layer between conductor layer, also has conductor shield (3), insulating barrier (4), insulation screen (5) successively outside conductor.
2, low-loss power cable according to claim 1 is characterized in that also having insulation screen (5), metal screen layer (6), oversheath (7) outside conductor shield (3), insulating barrier (4), forms the insulated wire cores single-core cable thus.
3, low-loss power cable according to claim 2 is characterized in that the insulated wire cores of cable is followed successively by from inside to outside: conductor (1), interlayer insulating film (2), conductor (1), interlayer insulating film (2), conductor (1) layer, conductor shield (3), insulating barrier (4), insulation screen (5), metal screen layer (6).
4, according to claim 1 or 2 or 3 described low-loss power cables, the material that it is characterized in that interlayer insulating film (2) medium is polymer, the stationery dielectric with certain electric strength.
5,, it is characterized in that the outermost layer conductor directly contacts with conductor shield (3), to play the effect of equivalent potential screen according to claim 1 or 2 or 3 described low-loss power cables.
6, according to claim 1 or 2 or 3 described low-loss power cables, it is characterized in that forming multicore cable by the insulated wire cores more than 2 or 2, around the insulated wire cores gasket for packing (9) is arranged, inner restrictive coating (10), metal armouring layer (11) and external sheath layer (12) are arranged outside the gasket for packing successively.
7, low-loss power cable according to claim 6 is characterized in that the conductor wire core sectional area is between 25～3000 square millimeters.
8,, it is characterized in that conductor (1) material is copper or aluminium according to claim 1 or 2 or 3 described low-loss power cables.
9, according to claim 2 or 3 described low-loss power cables, the metal screen layer (6) that it is characterized in that insulated wire cores is to be made of copper strips or copper wire braiding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248656 CN2650299Y (en) | 2003-08-29 | 2003-08-29 | Low-loss power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03248656 CN2650299Y (en) | 2003-08-29 | 2003-08-29 | Low-loss power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2650299Y true CN2650299Y (en) | 2004-10-20 |
Family
ID=34327349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03248656 Expired - Fee Related CN2650299Y (en) | 2003-08-29 | 2003-08-29 | Low-loss power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2650299Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303917B (en) * | 2008-05-22 | 2010-12-01 | 山东科虹线缆有限公司 | Self-heating freezing-proof overhead conductor |
| CN102682903A (en) * | 2011-03-16 | 2012-09-19 | Ls电线有限公司 | High frequency power cable |
| CN103730205A (en) * | 2012-10-10 | 2014-04-16 | 四川金信石信息技术有限公司 | Power cable with loss reduction function |
| CN111063485A (en) * | 2019-11-27 | 2020-04-24 | 安徽华通电缆集团有限公司 | High-power low-loss power transmission cable |
-
2003
- 2003-08-29 CN CN 03248656 patent/CN2650299Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303917B (en) * | 2008-05-22 | 2010-12-01 | 山东科虹线缆有限公司 | Self-heating freezing-proof overhead conductor |
| CN102682903A (en) * | 2011-03-16 | 2012-09-19 | Ls电线有限公司 | High frequency power cable |
| CN103730205A (en) * | 2012-10-10 | 2014-04-16 | 四川金信石信息技术有限公司 | Power cable with loss reduction function |
| CN111063485A (en) * | 2019-11-27 | 2020-04-24 | 安徽华通电缆集团有限公司 | High-power low-loss power transmission cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TEBIAN ELECTRIC APPARATUS STOCK CO., LTD. Free format text: FORMER NAME OR ADDRESS: XINJIANG TBEA ELECTRICAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Tebian Electrician Co., Ltd. Patentee before: Tebian Electrotechnical Co., Ltd., Xinjiang |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |