CN103825233A - High-voltage bus and method for improving current-carrying capability of high-voltage bus - Google Patents
High-voltage bus and method for improving current-carrying capability of high-voltage bus Download PDFInfo
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- CN103825233A CN103825233A CN201410081633.XA CN201410081633A CN103825233A CN 103825233 A CN103825233 A CN 103825233A CN 201410081633 A CN201410081633 A CN 201410081633A CN 103825233 A CN103825233 A CN 103825233A
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- bus
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- high voltage
- voltage bus
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Abstract
The invention provides a high-voltage bus and a method for improving the current-carrying capability of the high-voltage bus. The high-voltage bus comprises an insulation protection tube body and a bus conductor matrix, wherein the bus conductor matrix is supported in the inner cavity of the insulation protection tube body by virtue of a support element; an air interlayer is arranged between the bus conductor matrix and the insulation protection tube body; the innermost layer of the insulation protection tube body is a shielding layer; the bus conductor matrix and the shielding layer are equipotential, so as to avoid partial discharge between the bus conductor matrix and the insulation protection tube body. The invention further provides a method for improving the current-carrying capability of the high-voltage bus. When capacity increasing is needed, the current-carrying capability of the high-voltage bus can be improved by replacing the bus conductor matrix with a higher current-carrying capability or adding an additional bus conductor matrix in the inner cavity of the insulation protection tube body, and the insulation protection tube body still continues to be used; compared with the existing current-carrying method of integrally replacing the high-voltage bus or additionally paving the high-voltage bus, the method is investment-saving, convenient and rapid to install, and capable of greatly shortening the construction period.
Description
technical field
The present invention relates to high voltage bus, also relate to the method that increases high voltage bus current capacity.
background technology
High voltage bus plays the effect that collects, distributes and transmit electric energy, often be applied to the electric equipment such as connection and transformer of electric substation's high voltage distribution installation and the connection of corresponding power distribution equipment, mostly adopt cable, rectangular bus bar or circular cross-section pipe clavate bus.No matter be any, all will be on conductor tight coated insulation layer.
The Chinese utility model patent of the patent No. 201020642316.8 has disclosed a kind of outdoor high voltage bus bar; as shown in Figure 1; it comprises copper busbar matrix 4 and is closely coated on the isolating shrinkable protective casing 5 outside copper busbar matrix; its manufacture method is: first copper busbar matrix 4 is preheated to 60 ℃; again isolating shrinkable protective casing 5 is sleeved on copper busbar matrix 4, and then by isolating shrinkable protective casing 5 homogeneous heatings.After copper busbar matrix 4 is cooling together with isolating shrinkable protective casing 5, scratch the isolating shrinkable protective casing 5 of lap-joint with electrician's knife by " bus is made and assembly technology rules " requirement, make outdoor high voltage bus bar.Because MPG is by special poly-rare and special the processing of process, there is high insulation property and pyrocondensation performance, through heat shrink, the radial shrinkage ratio of isolating shrinkable protective casing 5 can reach 50%, therefore can be coated on securely the outer surface of copper busbar matrix 4.
At present, along with the continuous increase of every profession and trade power consumption, electric power increase-volume expansion project normality increasingly, at power field, renewable energy resources industry particularly Wind Power Development is the rapidest, and each wind energy turbine set will increase-volume every several years.Increase-volume generally all can relate to increases transformer capacity, increase high voltage bus current capacity.But the conductor of existing high voltage bus and coated insulating barrier are structure as a whole, combine closely, the in the situation that of increase-volume, can only integral replacing high voltage bus or lay in addition high voltage bus, greatly extend the duration and increase investment.
summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high voltage bus.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of high voltage bus; comprise insulation protection body and bus-bars conductor matrix; bus-bars conductor matrix by supports support in insulation protection tube cavity; between bus-bars conductor matrix and insulation protection body, there is air blanketing; the innermost layer of insulation protection body is screen; when high voltage bus operation, bus-bars conductor matrix and this screen equipotential, to avoid producing partial discharge between bus-bars conductor matrix and insulation protection body.
Above-mentioned high voltage bus, is reserved with the support level that increases bus-bars conductor matrix after supporting on strutting piece.
Above-mentioned high voltage bus, insulation protection body comprises rigid insulation pipe and be compound in the insulating barrier outside rigid insulation pipe, screen is located on rigid insulation pipe inner surface.
Above-mentioned high voltage bus, is provided with at least one deck screen in insulating barrier, the outermost layer screen in insulating barrier is connected with ground extractor as bonding layer.
Above-mentioned high voltage bus, screen is semiconductor layer or metal forming conducting shell.
Above-mentioned high voltage bus, this high voltage bus is for becoming segment structure, and when serial connection, the insulation protection body waterproof sealing insulation of adjacent two sections of high voltage bus connects, and this waterproof sealing insulation is connected to flange connection or adopts one section of more insulation protection body socket of large diameter.
Above-mentioned high voltage bus, strutting piece is cushion block or packing ring, in the time that strutting piece is insulator, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, is electrically connected by elastic conducting strip, makes both equipotentials; In the time that strutting piece is conductor or semiconductor, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, be electrically connected by strutting piece, make both equipotentials.
The technical problem to be solved in the present invention is to provide a kind of method that increases high voltage bus current capacity.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
Increase a method for above-mentioned high voltage bus current capacity, rear increasing bus-bars conductor matrix is installed in insulation protection tube cavity and by support level reserved on strutting piece and is supported.
Increase a method for above-mentioned high voltage bus current capacity, bus-bars conductor matrix is replaced with to the same material bus-bars conductor matrix that area of section is larger or is replaced with the better bus-bars conductor matrix of material conductivity.
Increase a method for above-mentioned high voltage bus current capacity, on bus-bars conductor matrix, additional new bus-bars conductor matrix, with increasing section area, is then placed in insulation protective jacket tube cavity by the bus-bars conductor matrix after additional new bus-bars conductor matrix.
In the time of needs increase-volume; can be by changing the bus-bars conductor matrix of great current carrying capacity more (area of section is larger or material conductivity is better) or increasing other bus-bars conductor matrix to increase the current capacity of high voltage bus in insulation protection tube cavity; insulation protection body still continues to use; with existing integral replacing high voltage bus or lay in addition high voltage bus compatibilizing method and compare; reduce investment outlay; easy for installation, quick, greatly shorten the duration.
accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in more detail:
Fig. 1 is the structural representation of existing high voltage bus.
Fig. 2 is the structural representation of an embodiment of the present invention.
Fig. 3 is the sectional drawing of Fig. 2.
Fig. 4 is the structural representation of the another kind of embodiment of the present invention.
In figure: 1 insulation protection body, 2 bus-bars conductor matrixes, 3 strutting pieces, 4 copper busbar matrixes, 5 isolating shrinkable protective casings.
Embodiment
As shown in Figures 2 to 4, a kind of high voltage bus comprises insulation protection body 1 and bus-bars conductor matrix 2, and bus-bars conductor matrix is supported in insulation protection tube cavity by strutting piece 3, between bus-bars conductor matrix and insulation protection body, has air blanketing.The innermost layer of insulation protection body is screen, and when high voltage bus operation, bus-bars conductor matrix and this screen equipotential, to avoid producing partial discharge between bus-bars conductor matrix and insulation protection body.
On strutting piece, can be reserved with the support level that increases bus-bars conductor matrix after supporting, in the time of follow-up increase-volume, follow-up increase bus-bars conductor matrix is installed in insulation protection tube cavity and by support level reserved on strutting piece and be supported.
Insulation protection body comprises rigid insulation pipe and be compound in the insulating barrier outside rigid insulation pipe, and screen is located on rigid insulation pipe inner surface.Rigid insulation pipe, as the skeleton of insulation protection body, adopts epoxy resin pipe, teflon tube or other insulating composite material.
In insulating barrier, be provided with at least one deck screen, the outermost layer screen in insulating barrier is connected with ground extractor as bonding layer.
Screen is semiconductor layer or metal forming conducting shell.
This high voltage bus is for becoming segment structure, and when serial connection, the insulation protection body waterproof sealing insulation of adjacent two sections of high voltage bus connects.This waterproof sealing insulation is connected to flange connection or adopts one section of more insulation protection body socket of large diameter.
Strutting piece is cushion block or packing ring, in the time that strutting piece is insulator, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, is electrically connected by elastic conducting strip, makes both equipotentials; In the time that strutting piece is conductor or semiconductor, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, be electrically connected by strutting piece, make both equipotentials.Strutting piece can be extracted out with supported bus-bars conductor matrix from insulation protection body.
In the time being reserved with the support level that supports follow-up increase bus-bars conductor matrix on high voltage bus strutting piece, the method that increases high voltage bus current capacity is that the bus-bars conductor matrix of follow-up increase is installed in insulation protection tube cavity and by support level reserved on strutting piece and is supported.
The another kind of method that increases high voltage bus current capacity is: bus-bars conductor matrix is replaced with to the same material conductor matrix that area of section is larger or is replaced with the better bus-bars conductor matrix of material conductivity.Particularly, in the time that bus-bars conductor matrix is tubular structure, one method is: this bus-bars conductor matrix is replaced with to larger or the solid and new bus-bars conductor matrix that outer profile size is constant of wall thickness (can with the same material of former bus-bars conductor matrix, can be also unlike material); Another kind method is: this bus-bars conductor matrix is replaced with to outer profile size the new bus-bars conductor matrix changing has occurred, at this moment just need to correspondingly adjust strutting piece.In the time that bus-bars conductor matrix is solid construction, this bus-bars conductor matrix is replaced with to the hollow or solid new bus-bars conductor matrix that area of section is larger, and corresponding adjustment supporter.
Another method that increases high voltage bus current capacity is: on bus matrix, extra conductor, with increasing section area, is then placed in insulation protection tube cavity by the bus-bars conductor matrix after extra conductor, and corresponding adjustment strutting piece.
According to size of current and other selecting factors bus-bars conductor matrix, bus-bars conductor matrix can be tubular, rectangle and other special-shaped conductor, and at specific position, bus-bars conductor matrix can be fexible conductor, and in Fig. 3, bus-bars conductor matrix is fexible conductor.
Claims (10)
1. a high voltage bus; it is characterized in that: comprise insulation protection body and bus-bars conductor matrix; bus-bars conductor matrix by supports support in insulation protection tube cavity; between bus-bars conductor matrix and insulation protection body, there is air blanketing; the innermost layer of insulation protection body is screen; when high voltage bus operation, bus-bars conductor matrix and this screen equipotential, to avoid producing partial discharge between bus-bars conductor matrix and insulation protection body.
2. high voltage bus according to claim 1, is characterized in that: on strutting piece, be reserved with the support level that increases bus-bars conductor matrix after supporting.
3. high voltage bus according to claim 1, is characterized in that: insulation protection body comprises rigid insulation pipe and be compound in the insulating barrier outside rigid insulation pipe, and screen is located on rigid insulation pipe inner surface.
4. high voltage bus according to claim 3, is characterized in that: in insulating barrier, be provided with at least one deck screen, the outermost layer screen in insulating barrier is connected with ground extractor as bonding layer.
5. according to the high voltage bus described in claim 1 or 4, it is characterized in that: screen is semiconductor layer or metal forming conducting shell.
6. high voltage bus according to claim 1; it is characterized in that: this high voltage bus is for becoming segment structure; when serial connection; the insulation protection body waterproof sealing insulation of adjacent two sections of high voltage bus connects, and this waterproof sealing insulation is connected to flange connection or adopts one section of more insulation protection body socket of large diameter.
7. high voltage bus according to claim 1, it is characterized in that: strutting piece is cushion block or packing ring, in the time that strutting piece is insulator, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, be electrically connected by elastic conducting strip, make both equipotentials; In the time that strutting piece is conductor or semiconductor, between bus-bars conductor matrix and the screen of insulation protection body innermost layer, be electrically connected by strutting piece, make both equipotentials.
8. a method that increases high voltage bus current capacity described in claim 2, is characterized in that: rear increasing bus-bars conductor matrix is installed in insulation protection tube cavity and by support level reserved on strutting piece and is supported.
9. a method that increases the arbitrary described high voltage bus current capacity of claim 1-7, is characterized in that: bus-bars conductor matrix is replaced with to the same material bus-bars conductor matrix that area of section is larger or is replaced with the better bus-bars conductor matrix of material conductivity.
10. one kind increases the method for the arbitrary described high voltage bus current capacity of claim 1-7; it is characterized in that: on bus-bars conductor matrix, additional new bus-bars conductor matrix, with increasing section area, is then placed in insulation protective jacket tube cavity by the bus-bars conductor matrix after additional new bus-bars conductor matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081633.XA CN103825233A (en) | 2014-03-07 | 2014-03-07 | High-voltage bus and method for improving current-carrying capability of high-voltage bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081633.XA CN103825233A (en) | 2014-03-07 | 2014-03-07 | High-voltage bus and method for improving current-carrying capability of high-voltage bus |
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| CN103825233A true CN103825233A (en) | 2014-05-28 |
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| CN201410081633.XA Pending CN103825233A (en) | 2014-03-07 | 2014-03-07 | High-voltage bus and method for improving current-carrying capability of high-voltage bus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761838A (en) * | 2014-12-19 | 2016-07-13 | 德尔福派克电气***有限公司 | Aluminum core lead formation process |
| CN106024223A (en) * | 2016-07-04 | 2016-10-12 | 许继集团有限公司 | High-voltage switch cabinet and detachable shielding sleeve thereof |
| CN113363912A (en) * | 2021-03-16 | 2021-09-07 | 国家电网有限公司 | Female support fitting of pipe and transmission system |
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| JPH0917258A (en) * | 1995-06-26 | 1997-01-17 | Toshiba Corp | Complex insulating hollow porcelain type gas insulating bushing |
| CN2524410Y (en) * | 2002-01-16 | 2002-12-04 | 殷炳发 | Connecting structure of casing of optical fiber on wall |
| CN101101809A (en) * | 2007-07-10 | 2008-01-09 | 通州市东源协力电器有限公司 | Epoxide resin bus casing |
| CN201036092Y (en) * | 2007-04-13 | 2008-03-12 | 大连北方互感器有限公司 | Shielding high-voltage insulating tube |
| CN101465522A (en) * | 2007-12-20 | 2009-06-24 | 杭州欣美成套电器制造有限公司 | Elastic card piece connected with rectangular bus bar and shielding cover as well as bus bar insulated sleeve component |
| CN201667521U (en) * | 2010-04-13 | 2010-12-08 | 大连第二互感器集团有限公司 | Wall sleeve |
| CN202178506U (en) * | 2011-08-22 | 2012-03-28 | 浙江雷安电气有限公司 | High-voltage switch cabinet casing pipe |
| CN202930859U (en) * | 2012-09-29 | 2013-05-08 | 安徽德信电气有限公司 | Busbar bushing for switch cabinet |
| CN202930861U (en) * | 2012-11-27 | 2013-05-08 | 浙江省开化七一电力器材有限责任公司 | Wall-through bushing for high voltage switch cabinet |
| CN203119407U (en) * | 2013-04-08 | 2013-08-07 | 宁波欧日力电器制造有限公司 | High voltage busbar sleeve |
| CN203722170U (en) * | 2014-03-07 | 2014-07-16 | 解文 | High voltage bus |
-
2014
- 2014-03-07 CN CN201410081633.XA patent/CN103825233A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917258A (en) * | 1995-06-26 | 1997-01-17 | Toshiba Corp | Complex insulating hollow porcelain type gas insulating bushing |
| CN2524410Y (en) * | 2002-01-16 | 2002-12-04 | 殷炳发 | Connecting structure of casing of optical fiber on wall |
| CN201036092Y (en) * | 2007-04-13 | 2008-03-12 | 大连北方互感器有限公司 | Shielding high-voltage insulating tube |
| CN101101809A (en) * | 2007-07-10 | 2008-01-09 | 通州市东源协力电器有限公司 | Epoxide resin bus casing |
| CN101465522A (en) * | 2007-12-20 | 2009-06-24 | 杭州欣美成套电器制造有限公司 | Elastic card piece connected with rectangular bus bar and shielding cover as well as bus bar insulated sleeve component |
| CN201667521U (en) * | 2010-04-13 | 2010-12-08 | 大连第二互感器集团有限公司 | Wall sleeve |
| CN202178506U (en) * | 2011-08-22 | 2012-03-28 | 浙江雷安电气有限公司 | High-voltage switch cabinet casing pipe |
| CN202930859U (en) * | 2012-09-29 | 2013-05-08 | 安徽德信电气有限公司 | Busbar bushing for switch cabinet |
| CN202930861U (en) * | 2012-11-27 | 2013-05-08 | 浙江省开化七一电力器材有限责任公司 | Wall-through bushing for high voltage switch cabinet |
| CN203119407U (en) * | 2013-04-08 | 2013-08-07 | 宁波欧日力电器制造有限公司 | High voltage busbar sleeve |
| CN203722170U (en) * | 2014-03-07 | 2014-07-16 | 解文 | High voltage bus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105761838A (en) * | 2014-12-19 | 2016-07-13 | 德尔福派克电气***有限公司 | Aluminum core lead formation process |
| CN105761838B (en) * | 2014-12-19 | 2019-02-22 | 安波福电气***有限公司 | A kind of aluminium core conducting wire moulding process |
| CN106024223A (en) * | 2016-07-04 | 2016-10-12 | 许继集团有限公司 | High-voltage switch cabinet and detachable shielding sleeve thereof |
| CN113363912A (en) * | 2021-03-16 | 2021-09-07 | 国家电网有限公司 | Female support fitting of pipe and transmission system |
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Application publication date: 20140528 |