CN104051070A - Large-current conveying bus - Google Patents
Large-current conveying bus Download PDFInfo
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- CN104051070A CN104051070A CN201410332667.1A CN201410332667A CN104051070A CN 104051070 A CN104051070 A CN 104051070A CN 201410332667 A CN201410332667 A CN 201410332667A CN 104051070 A CN104051070 A CN 104051070A
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- bus conductor
- hollow channel
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- conductor
- tube type
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Abstract
The invention provides a large-current conveying bus. The large-current conveying bus comprises a novel bus conductor and an insulating layer wrapping the novel bus conductor. The novel bus conductor is provided with an outer circumferential face. Two or more hollow channels are formed in the novel bus conductor. The hollow channels extend in the length direction of the novel bus conductor. It is assumed that a tubular bus conductor which has the same outer diameter and the same linear density as the novel bus conductor exists, the inner diameter of the tubular bus conductor is r, and the sum of the perimeters of the cross sections of the hollow channels in the novel bus conductor is larger than 2 pi r. Due to the fact that the large-current conveying bus comprises the tubular bus conductor and the insulating layer wrapping the tubular bus conductor, the hollow channels are formed in the wall of the tubular bus conductor, and the hollow channels extend in the length direction of the tubular bus conductor. The invention further provides the large-current conveying bus. According to the large-current conveying bus, radiation is facilitated, and coefficients of a skin effect are reduced when the alternating current is conveyed.
Description
technical field
The present invention relates to a kind of bus of carrying large electric current.
background technology
Tube type bus, because have multiple advantage, is widely applied: 1., for alternating current, frequency is higher, skin effect is more obvious, cast conductor can, in the situation that ensureing rigidity, have larger surfaces externally and internally long-pending, thereby the load loss of bus be less.2. the surface electric field distribution of tubular type conductor is even, and except being very easy to do insulation shielding processing, cast conductor cylindrical is larger, and the beginning voltage of corona is higher, and therefore insulation is more reliable.Tubular type conductor because of inner chamber can natural draft heat radiation, temperature rise is lower.
But along with national development, it is increasing that transmission is loaded, and in the situation that voltage is certain, the electric current of transmission is also just increasing.And the shared space of the bus that transmits large electric current is restricted often, this is that on the other hand, other affiliated facility of large scale electrical power unit has also pushed the space of bus because land price is also more and more higher on the one hand.Like this, even select tube type bus, the maximum gauge of bus-bars conductor is also limited, can not be too large.Be limited to the external diameter of cast conductor, transmit large electric current, can only, by strengthening the wall thickness of cast conductor, like this, increase although cast cross-sectional area of conductor is long-pending, skin effect coefficient has also increased.In the time that cast conductor thickness is increased to a certain degree, line loss can significantly increase, and bus heating is inevitably, and this has affected the insulation of bus.
summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heavy current busbar of carrying, and is conducive to heat radiation, is conducive to reduce skin effect coefficient in the time carrying alternating current.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of heavy current busbar of carrying, comprise the insulating barrier of novel bus conductor and coated novel bus conductor, novel bus conductor has periphery, in novel bus conductor, there is more than two hollow channel, hollow channel extends along novel bus conductor length direction, suppose to exist and the tube type bus conductor of novel bus conductor with external diameter and same line density, tube type bus conductor internal diameter r, in novel bus conductor, hollow channel section girth summation is greater than 2 π r.
Above-mentioned conveying heavy current busbar, hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
Above-mentioned conveying heavy current busbar, the shape of hollow channel can be identical, can part identical, also can be all not identical.
Above-mentioned conveying heavy current busbar, novel bus conductor is honeycomb molded body.
Compared with existing tube type bus conductor, under the condition of equal line density and external diameter, plural hollow channel is set in novel bus conductor, increase the quantity of hollow channel, and the total internal surface area of unit length hollow channel is greater than tube type bus conductor internal surface area, in the time carrying alternating current, not only can reduce skin effect coefficient, can also select different passages (to utilize natural wind or water or refrigerant) by different way and dispel the heat.In the time carrying D.C. high-current, mode that can be more economical is dispelled the heat more efficiently, such as take to allow different passages dispel the heat with certain refrigerant or take to allow different passages with different refrigerant heat radiations simultaneously.
The technical problem to be solved in the present invention is to provide a kind of heavy current busbar of carrying, and is conducive to heat radiation, is conducive to reduce skin effect coefficient in the time carrying alternating current.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
One is carried heavy current busbar, comprises the insulating barrier of tube type bus conductor and coated cast bus-bars conductor, and some hollow channels are set in tube type bus conducting wall, and hollow channel extends along tube type bus conductor length direction.
Above-mentioned conveying heavy current busbar, hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
Above-mentioned conveying heavy current busbar, the shape of hollow channel can be identical, can part identical, also can be all not identical.
Some hollow channels are set in tube type bus conducting wall, have increased the internal surface area of tube type bus conductor, the skin effect coefficient can effectively dispel the heat and reduce to carry alternating current time.
The technical problem to be solved in the present invention is to provide a kind of heavy current busbar of carrying, and is conducive to heat radiation, is conducive to reduce skin effect coefficient in the time carrying alternating current.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of heavy current busbar of carrying, comprise the insulating barrier of tube type bus conductor and coated cast bus-bars conductor, in tube type bus conductor inner chamber, the dividing body that this inner chamber is divided into more than two hollow channel is set, hollow channel extends along tube type bus conductor length direction, dividing body and tube type bus conductor are with material and their common novel bus conductors that forms integrative-structure, and the novel bus conductor internal surface area of unit length is greater than the tube type bus conductor internal surface area of unit length.
Above-mentioned conveying heavy current busbar, dividing body cross section is " one " font, " ten " font, " Y " shape, " H " shape, "T"-shaped, serpentine, " L " shape, " X " shape, " V " shape, " W " shape, " Z " shape, arc or n limit shape, n >=3.
Above-mentioned conveying heavy current busbar, hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
Above-mentioned conveying heavy current busbar, the shape of hollow channel can be identical, can part identical, also can be all not identical.
In tube type bus conductor inner chamber, the dividing body that this inner chamber is divided into more than two hollow channel is set, increase the quantity of hollow channel by dividing body, and the novel bus conductor internal surface area being made up of dividing body and tube type bus conductor is greater than tube type bus conductor internal surface area, can effectively dispel the heat in many ways, in the time carrying alternating current, can also reduce significantly skin effect coefficient.
brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described in more detail:
Fig. 1 is the structural representation of the 1st kind of embodiment of the present invention.
Fig. 2 is the structural representation of the 2nd kind of embodiment of the present invention.
Fig. 3 is the structural representation of the 3rd kind of embodiment of the present invention.
Fig. 4 is the structural representation of the 4th kind of embodiment of the present invention.
Fig. 5 is the structural representation of the 5th kind of embodiment of the present invention.
Fig. 6 is the structural representation of the 6th kind of embodiment of the present invention.
Fig. 7 is the structural representation of the 7th kind of embodiment of the present invention.
Fig. 8 is the structural representation of the 8th kind of embodiment of the present invention.
Fig. 9 is the structural representation of the 9th kind of embodiment of the present invention.
Figure 10 is the structural representation of the 10th kind of embodiment of the present invention.
Figure 11 is the structural representation of the 11st kind of embodiment of the present invention.
Figure 12 is the structural representation of the 12nd kind of embodiment of the present invention.
Embodiment
First kind embodiment:
A kind of insulating barrier of carrying heavy current busbar to comprise novel bus conductor and coated novel bus conductor.Novel bus conductor has periphery, and the Electric Field Distribution of outer round conductor is even.In novel bus conductor, have more than two hollow channel, hollow channel extends along novel bus conductor length direction.Only compared with a passage, novel bus conductor has more than two hollow channel, is multi-channel structure with existing tube type bus conductor.Suppose to exist with novel bus conductor with external diameter and with the tube type bus conductor of line density, tube type bus conductor internal diameter r, in novel bus conductor, hollow channel section girth summation is greater than 2 π r, and unit length novel bus conductor internal surface area is greater than unit length with external diameter and with the tube type bus conductor internal surface area of line density.
The technical thought of first kind embodiment be with tube type bus conductor with external diameter and the condition with line density under, adopt much channel communication to obtain and there is the novel bus conductor of larger internal surface area, effectively reduce skin effect.Be that the cross-sectional area of tube type bus conductor body and the identical unit length in other words of cross-sectional area tube type bus conductor quality and the unit length novel bus conductor of novel bus conductor body are identical in quality with the meaning of line density.
Hollow channel is that mounting hole (as Fig. 3, Fig. 8 and Fig. 9) or the cross section of hollow channel rounded (Fig. 1, Fig. 2, Fig. 6 and Fig. 7), part circular (Figure 10), ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped (Figure 11 and Figure 12), part are fan-shaped, n limit shape (Fig. 4 and Fig. 5) or part n limit shape, n >=3.Here be the schematic shape of hollow channel for example, hollow channel can also be other shape certainly.
With regard to wall scroll high voltage bus, the shape of its hollow channel having can be identical, can part identical, also can be all not identical.
Ideal, novel bus conductor is honeycomb molded body.
The in the situation that of the shared limited space of high voltage bus, the increase internal surface area of trying every possible means is the most effectual way that reduces skin effect.Can increase smoothly internal surface area by the novel bus conductor with multi-channel structure, limited reduction skin effect.In addition, thus can in hollow channel, set up conductor and reach the technique effect of increase-volume in the situation that not changing outer layer insulation.Multichannel can be realized multimode and cool, the such as type of cooling such as air cooling, water-cooled, also be more conducive to the conduction of high voltage bus heat and scatter and disappear, easily solve existing bus-bars conductor because heat accumulation is difficult for scattering and disappearing, resistance increases the problem that causes high voltage bus fusing or burning.
Equations of The Second Kind embodiment:
A kind of insulating barrier of carrying heavy current busbar to comprise tube type bus conductor and coated cast bus-bars conductor.Some hollow channels are set in tube type bus conducting wall, and hollow channel extends along tube type bus conductor length direction.Increase bus-bars conductor internal surface area by increasing hollow channel quantity, realize the technique effect that effectively reduces skin effect.
Hollow channel is that mounting hole (Fig. 8 and Fig. 9) or the cross section of hollow channel rounded (Fig. 6 and Fig. 7), part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.Here be the schematic shape of hollow channel for example, hollow channel can also be other shape certainly.
The shape of hollow channel can be identical, can part identical, also can be all not identical.
Some hollow channels are set in tube type bus conducting wall, have increased the internal surface area of tube type bus conductor, effectively reduce skin effect.In addition, thus can in hollow channel, set up conductor and reach the technique effect of increase-volume in the situation that not changing outer layer insulation.Multichannel can be realized multimode and cool, the such as type of cooling such as air cooling, water-cooled, also be more conducive to the conduction of high voltage bus heat and scatter and disappear, easily solve existing bus-bars conductor because heat accumulation is difficult for scattering and disappearing, resistance increases the problem that causes high voltage bus fusing or burning.
The 3rd class embodiment:
A kind of insulating barrier of carrying heavy current busbar to comprise tube type bus conductor and coated cast bus-bars conductor.In tube type bus conductor inner chamber, the dividing body that this inner chamber is divided into more than two hollow channel is set, hollow channel extends along tube type bus conductor length direction, dividing body and tube type bus conductor are with material and their common novel bus conductors that forms integrative-structure, and novel bus conductor internal surface area is greater than tube type bus conductor internal surface area.
In tube type bus conductor inner chamber, the dividing body that this inner chamber is divided into more than two hollow channel is set, increase quantity and the bus-bars conductor internal surface area of hollow channel by dividing body, novel bus conductor internal surface area is greater than tube type bus conductor internal surface area, effectively reduces skin effect.
Dividing body cross section is " one " font (Figure 10), " ten " font (Figure 12), " Y " shape (Figure 11), " H " shape, "T"-shaped, serpentine, " L " shape, " X " shape, " V " shape, " W " shape, " Z " shape, arc or n limit shape, n >=3.Here be the schematic shape of dividing body for example, dividing body can also be other shape certainly.
Hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.Here be the schematic shape of hollow channel for example, hollow channel can also be other shape certainly.
The shape of hollow channel can be identical, can part identical, also can be all not identical.
The quantity and the bus-bars conductor internal surface area that increase hollow channel by dividing body, effectively reduce skin effect.In addition, thus can in hollow channel, set up conductor and reach the technique effect of increase-volume in the situation that not changing outer layer insulation.Multichannel can be realized multimode and cool, the such as type of cooling such as air cooling, water-cooled, also be more conducive to the conduction of high voltage bus heat and scatter and disappear, easily solve existing bus-bars conductor because heat accumulation is difficult for scattering and disappearing, resistance increases the problem that causes high voltage bus fusing or burning.
Claims (10)
1. carry heavy current busbar for one kind, comprise the insulating barrier of novel bus conductor and coated novel bus conductor, novel bus conductor has periphery, it is characterized in that: in novel bus conductor, there is more than two hollow channel, hollow channel extends along novel bus conductor length direction, suppose to exist and the tube type bus conductor of novel bus conductor with external diameter and same line density, tube type bus conductor internal diameter r, in novel bus conductor, hollow channel section girth summation is greater than 2 π r.
2. conveying heavy current busbar according to claim 1, it is characterized in that: hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
3. conveying heavy current busbar according to claim 1 and 2, is characterized in that: the shape of hollow channel can be identical, can part identical, also can be all not identical;
Conveying heavy current busbar according to claim 1, is characterized in that: novel bus conductor is honeycomb molded body.
4. carry a heavy current busbar, comprise the insulating barrier of tube type bus conductor and coated cast bus-bars conductor, it is characterized in that: some hollow channels are set in tube type bus conducting wall, and hollow channel extends along tube type bus conductor length direction.
5. conveying heavy current busbar according to claim 4, it is characterized in that: hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
6. according to the alternating current high voltage bus described in claim 4 or 5, it is characterized in that: the shape of hollow channel can be identical, can part identical, can be all not identical yet.
7. carry heavy current busbar for one kind, comprise the insulating barrier of tube type bus conductor and coated cast bus-bars conductor, it is characterized in that: in tube type bus conductor inner chamber, the dividing body that this inner chamber is divided into more than two hollow channel is set, hollow channel extends along tube type bus conductor length direction, dividing body and tube type bus conductor are with material and their common novel bus conductors that forms integrative-structure, and the novel bus conductor internal surface area of unit length is greater than the tube type bus conductor internal surface area of unit length.
8. conveying heavy current busbar according to claim 7, it is characterized in that: dividing body cross section is " one " font, " ten " font, " Y " shape, " H " shape, "T"-shaped, serpentine, " L " shape, " X " shape, " V " shape, " W " shape, " Z " shape, arc or n limit shape, n >=3.
9. conveying heavy current busbar according to claim 7, it is characterized in that: hollow channel is that the cross section of mounting hole or hollow channel is rounded, part circular, ellipse, part are oval, oblate, part oblateness, oval, part oval, fan-shaped, part is fan-shaped, n limit shape or part n limit shape, n >=3.
10. conveying heavy current busbar according to claim 9, is characterized in that: the shape of hollow channel can be identical, can part identical, also can be all not identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332667.1A CN104051070A (en) | 2014-07-14 | 2014-07-14 | Large-current conveying bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410332667.1A CN104051070A (en) | 2014-07-14 | 2014-07-14 | Large-current conveying bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104051070A true CN104051070A (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410332667.1A Pending CN104051070A (en) | 2014-07-14 | 2014-07-14 | Large-current conveying bus |
Country Status (1)
| Country | Link |
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| CN (1) | CN104051070A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485168A (en) * | 2014-12-31 | 2015-04-01 | 江苏亨通线缆科技有限公司 | Low-skin-effect large-wire-diameter cable |
| CN105489304A (en) * | 2014-10-13 | 2016-04-13 | 武陟县电业总公司 | High-conductivity power cable |
| CN105790011A (en) * | 2016-03-31 | 2016-07-20 | 安徽鑫旭新材料股份有限公司 | Inner through hole self-cooling furnace current carrying copper busbar |
| CN106777690A (en) * | 2016-12-15 | 2017-05-31 | 国网江苏省电力公司淮安供电公司 | A kind of computational methods of the bus kelvin effect based on ANSYS |
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| CN203520902U (en) * | 2013-10-17 | 2014-04-02 | 崔宝林 | Tubular bus with inner and outer circles in different shapes |
| CN203521026U (en) * | 2013-10-25 | 2014-04-02 | 崔宝林 | Fully insulated and shielded outer-cylindrical special-pipe-shaped bus |
| CN204045264U (en) * | 2014-07-14 | 2014-12-24 | 解文 | A kind of conveying heavy current busbar |
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2014
- 2014-07-14 CN CN201410332667.1A patent/CN104051070A/en active Pending
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| JPS61190812A (en) * | 1985-02-19 | 1986-08-25 | 株式会社東芝 | Flexible type conduit aerial bus |
| JPH07335028A (en) * | 1994-06-06 | 1995-12-22 | Showa Alum Corp | Conductive member provided with cooling medium passage |
| CN1445794A (en) * | 2002-03-19 | 2003-10-01 | 后藤电子株式会社 | Electric wire |
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| CN201549956U (en) * | 2009-05-22 | 2010-08-11 | 山东济南发电设备厂 | Double-hole hollow wire with unequal wall thickness for rotor winding |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489304A (en) * | 2014-10-13 | 2016-04-13 | 武陟县电业总公司 | High-conductivity power cable |
| CN104485168A (en) * | 2014-12-31 | 2015-04-01 | 江苏亨通线缆科技有限公司 | Low-skin-effect large-wire-diameter cable |
| CN105790011A (en) * | 2016-03-31 | 2016-07-20 | 安徽鑫旭新材料股份有限公司 | Inner through hole self-cooling furnace current carrying copper busbar |
| CN106777690A (en) * | 2016-12-15 | 2017-05-31 | 国网江苏省电力公司淮安供电公司 | A kind of computational methods of the bus kelvin effect based on ANSYS |
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Inventor after: Jie Wen Inventor after: Xu Jing Inventor after: Yan Xiuling Inventor before: Jie Wen Inventor before: Yan Xiuling |
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