CN101577375A - High voltage bushing contact, high voltage bushing and high voltage device - Google Patents
High voltage bushing contact, high voltage bushing and high voltage device Download PDFInfo
- Publication number
- CN101577375A CN101577375A CNA2008101271043A CN200810127104A CN101577375A CN 101577375 A CN101577375 A CN 101577375A CN A2008101271043 A CNA2008101271043 A CN A2008101271043A CN 200810127104 A CN200810127104 A CN 200810127104A CN 101577375 A CN101577375 A CN 101577375A
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- China
- Prior art keywords
- connector portions
- joint
- conductor
- installing hole
- bushing
- 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.)
- Granted
Links
- 239000004020 conductor Substances 0.000 claims abstract description 51
- 238000009434 installation Methods 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 8
- 239000011796 hollow space material Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
Landscapes
- Insulators (AREA)
- Gas-Insulated Switchgears (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
本发明涉及一种高压套管接头，其包括用于与电气装置连接的第一接头部(14)和用于与所述套管的导体(10)连接的第二接头部(16)，其中所述第二接头部具有内孔(18)，所述内孔设置有用于容纳所述导体的端部的开口。所述接头还包括一组安装孔(22，42)和一组适于穿过所述安装孔的安装构件(24)，两个所述接头部(14，16)通过所述安装孔和安装构件固定至所述导体(10)的端部，并且每个所述安装孔(22，42)具有位于所述第二接头部(16)的所述内孔(18)的内侧的第一开口。本发明还涉及包括此种接头的高压套管和包括此种套管的高压装置。
The invention relates to a high-voltage bushing joint, which comprises a first joint part (14) for connecting with an electrical device and a second joint part (16) for connecting with a conductor (10) of the bushing, wherein The second joint part has an internal bore (18) provided with an opening for receiving the end of the conductor. The joint also includes a set of mounting holes (22, 42) and a set of mounting members (24) adapted to pass through the mounting holes, and the two joint parts (14, 16) pass through the mounting holes and mount A member is fixed to the end of the conductor (10), and each of the mounting holes (22, 42) has a first opening inside the inner hole (18) of the second joint part (16) . The invention also relates to a high voltage bushing comprising such a joint and a high voltage device comprising such a bushing.
Description
Technical field
The present invention relates to the field of high-voltage electric power system, particularly be used for the joint of the bushing that each high-pressure installation at the each several part that forms described system uses.
Background of invention
Known, for example the high-tension apparatus of high-tension transformer, reactor, switchgear etc. and device are equipped with sleeve pipe, sleeve pipe to be suitable for the electric current of high potential is transmitted by ground connection resistance barrier usually---for example wall or the housing of electric device resemble the transformer tank.
Traditional bushing comprises the insulator of being made by pottery or composite material, and sleeve pipe is provided with full skirt and is hollow substantially.In the inboard of sleeve pipe, realize voltage grading by the voltage grading device of capacitor body or some other type, electric conductor passes described voltage grading device.Electric conductor is connected to a side of the sleeve pipe that is connected with high-voltage electric device, and is connected with another high-voltage electric device at the opposite side of sleeve pipe.For example, when first electric device is transformer, sleeve pipe is installed on the transformer housing such as tank wall, and the conductor of the sleeve pipe inboard that makes transformer with its on the outside that can be connected such as another electric device of bus, surge arrester or straight-wavy valve be connected.
In the sleeve pipe of prior art, the bottom part of high-pressure conductor forms and is arranged as the bottom fitting that is connected with first electric device, and first electric device will be the intraware of transformer under the situation of transformer.For this reason, in transformer, be provided with the nipple of coupling.In the sleeve pipe upper end relative with the bottom fitting end, conductor is provided with top external terminal or outer jointing, and conductor is connected to second electric device or external source by it.Normally, thereby in order to be electrically connected conductor and transformer to be connected to external source or electric device, outer jointing is electrically connected to conductor by the interface of general planar, and it forms the top cover of sleeve pipe simultaneously.
In the sleeve pipe of the prior art of another type, described external terminal can not directly be attached to the top cover of sleeve pipe, and being connected by the mid portion of conduction between external terminal and the conductor realizes.This mid portion is installed on the end of conductor, extends through the top cover of sleeve pipe, and external terminal is screwed on the mid portion in the outside of sleeve pipe.For mid portion is fastened to conductor, it must be screwed into steel draw ring or the like that is positioned at the conductor inboard.This draw ring is screwed into conductor again, thereby owing to necessary internal thread reduces the wall thickness of conductor.This draw ring device also requires to provide sealing.
The term high pressure is generally used for being higher than about 50 kilovolts voltage.Nowadays, the upper limit of commercial high-pressure installation is generally 1100 kilovolts, will reach in the near future such as 1200 kilovolts even higher voltage but can predict.Simultaneously, levels of current also increases, and can be up to 4000-5000 peace even higher.
For the high pressure in 800 kilovolts and the higher scope and 2000 peaces and higher rated current, the nature that requires of sleeve pipe is increased---for example when facing the situations such as electric insulation of heat radiation and cooling, electric field, sleeve pipe.Thus, low-loss, particularly can realize that target current becomes essential.The loss of present casing mainly ascribes the loss in each joint in the loss of conductor and the circuit between the different parts of sleeve pipe or the contact to.Thereby when considering conductor, what become more and more important is that every kind of device is minimized, and makes and reduces such as the electric conducting material in the conductor of screw thread.Recognize that equally joint still less can reduce loss, this is favourable in the application of high voltage and high electric current.
Summary of the invention
An object of the present invention is to provide a kind of high voltage bushing contact, it has improved existing casing joint and can reach above-mentioned high-pressure horizontal and high rated current.
A further object of the present invention provides the bushing that comprises this kind joint and comprises the high-pressure installation of this kind sleeve pipe.
Realize these and other objects by the high voltage bushing contact, bushing and the high-pressure installation that limit as independent claims.
Correspondingly, limit a kind of high voltage bushing contact, it comprises first connector portions that is used for being connected with electric device and second connector portions that is used for being connected with the conductor of described sleeve pipe, wherein, described second connector portions has endoporus, described endoporus is provided with the opening of the end that is used to hold described conductor, it is characterized in that, described joint also comprises one group of installing hole and one group of installation component that is suitable for passing described installing hole, two described connector portions are fixed to the end of described conductor by described installing hole and installation component, and each described installing hole has inboard first opening of the described endoporus that is positioned at described second connector portions.By utilizing mutually same group installing hole and mounting screw that two connector portions are fixed to the end of conductor, realized having the still less advantage of the simpler structure of parts.
According to another feature, described first connector portions has the maximum outer sectional dimension perpendicular to the axis of described conductor, and described mounting hole site is outside the described maximum of described first connector portions in the sectional dimension.By coming the location and installation hole, provide the first external head is had than prior art according to this feature---for example when installing hole is positioned at the outside of connector portions on flange---possibility in bigger cross section.The larger diameter of external head makes and may increase current capacity and do not need to make huge top sub.
According to first execution mode, described first connector portions is a hollow, and each described installing hole have the described hollow space that is positioned at described first connector portions the inboard, be used to insert second opening of described installation component.Thereby installation component can be from the inner installing hole that inserts of the hollow of first connector portions, that is, connector portions is connected to the external electrical device.By this set, installing hole and installation component can be made into than the weak point in following second execution mode.
According to second execution mode, described first connector portions is solid body, and each installing hole extends through the bottom that described solid body is also further passed described endoporus.This execution mode is made simple and easy and sturdy and durable.
In this execution mode, each installing hole has free-ended second opening that is positioned at described first connector portions.
According to another feature of joint of the present invention, joint is made for one.This provides the favourable current path that for example has minimum splicing loss.It also is easy to make.For example, it can or use the pipe material to make by the solid bar of machined into.
In a modification of first execution mode, the hollow space of the endoporus of second connector portions and first connector portions can separate by isolating midfeather, and installing hole is formed in the midfeather.
According to the present invention, also limit a kind of bushing that comprises the described outer jointing of claim that limits as arbitrary butt joint, and the high-pressure installation that comprises this kind bushing.
Description of drawings
Now by the present invention is described with reference to the accompanying drawings, accompanying drawing only illustrates embodiments of the present invention in the mode of example, wherein:
An end of the schematically illustrated bushing of cutaway view of Fig. 1 is provided with the outer jointing according to first embodiment of the invention;
The schematically illustrated joint of the amplification sectional block diagram of Fig. 2 according to invention first execution mode;
A kind of modification of schematically illustrated joint first execution mode of the cutaway view of Fig. 3; And
Second execution mode of the schematically illustrated foundation of the cutaway view of Fig. 4 joint of the present invention.
Embodiment
Be provided with a end shown in Fig. 1 according to the bushing of the joint of first embodiment of the invention.Bushing comprises a hollow sleeve insulator 2, and this hollow sleeve insulator forms an outer cover around high-pressure conductor 10.The end of sleeve pipe is by top cover 4 sealings.It is porose 6 that described lid is provided with, and conductor 10 passes the outside that hole 6 extends to sleeve pipe.Be called the example that this layout has been described in the european patent application of " bushing and comprise the high-pressure installation of this sleeve pipe " in name, described patent application and the application by identical applicant in submission on the same day.
In illustrated embodiment, first connector portions 14---below be also referred to as external head---is a hollow.Second connector portions 16---below be also referred to as conductor tab portion---has the base section that the bottom by endoporus 18 forms.This base section also can be described as midfeather 26 that external head and conductor tab portion are separated.In the embodiment shown, external head 14, conductor tab portion 16 and midfeather 26 form as one.
Installing hole 22 is formed in the midfeather 26, and forms an opening and form an opening in the endoporus 18 of conductor tab portion 16 in the hollow inside of connector portions 14 outside.When joint is installed on the conductor, in screw 24 patchholes 22, and the end of screw-in conductor, this end is provided with the appropriate device that screw is held in specific being used to.It can be simple end plug or other suitable device.
Fig. 3 illustrates a kind of change example of first execution mode.In the figure, with Fig. 1 and Fig. 2 in the same or analogous element of element give identical reference number.Comprise external head 14 and conductor tab portion 16 according to this joint that becomes example with endoporus 18.External head is a hollow.This difference that becomes example and Fig. 2 is: midfeather 36 is made as the independent component that inserts in this joint.Thereby installing hole 22 is manufactured in this independent component.
Fig. 4 shows second execution mode of the present invention.According to this execution mode, coupling 14 is not a hollow, but is made as solid body.Installing hole 42 runs through whole solid body 14, extends to the endoporus 18 of conductor tab portion 16 inboards from the free outer end of external head 14.
The external shape of external head 14 and interior shape all can change.In Fig. 2, external head is shown as cylindrical shape.Yet, also be likely square, hexagon or any and other suitable shape of the joint of its electric device that will be connected.For example, under the situation of second execution mode, hex shape may be suitable.
In all execution modes, first (outward) connector portions has the maximum outer sectional dimension perpendicular to the conductor axis, and mounting hole site is outside the maximum of this first connector portions in the sectional dimension.The external shape or the interior shape of this and external head have nothing to do.
In this specification, term " high pressure (HV) " is used for 50 kilovolts and higher voltage.The upper limit of current commercial high pressure is 1100 kilovolts, but the present invention also can be used for higher voltage predictably, up to 1200 kilovolts even higher.Usually, the present invention is applicable to about 200 kilovolts and above high pressure.
Described high voltage bushing contact can be used in the sleeve pipe of direct current or AC applications occasion.
Joint of the present invention and bushing also can be used for the high-pressure installation of many types---be applied to the appropriate device of high-pressure system such as transformer, reactor, circuit breaker, generator, switchgear or any other.In addition, in the context of the present invention, term " electric device " is understood to include cable, bus, surge arrester, straight-wavy valve etc. with " high-pressure installation ".
In addition, the present invention does not add restriction to the medium of each side of sleeve pipe, such as air-oil, air-air (wall bushing), air-coal gas (jet) etc.Do not limit selection to the dielectric in the sleeve pipe yet.It can for example be coal gas, oil, gelinite or its combination.
The present invention is not limited to the execution mode that only provides as example, changes and modification but can make in many ways within the scope of the appended claims as those skilled in the art recognize.
Claims (9)
1. high voltage bushing contact, comprise first connector portions (14) that is used for being connected and second connector portions (16) that is used for being connected with the conductor (10) of described sleeve pipe with electric device, wherein said second connector portions has endoporus (18), described endoporus is provided with the opening of the end that is used to hold described conductor, it is characterized in that, described joint also comprises one group of installing hole (22,42) and one group of installation component (24) that is suitable for passing described installing hole, two described connector portions (14,16) be fixed to the end of described conductor (10) by described installing hole and installation component, and each described installing hole (22,42) has first opening of the inboard of the described endoporus (18) that is positioned at described second connector portions (16).
2. joint as claimed in claim 1, it is characterized in that described first connector portions (14) has the maximum outer sectional dimension perpendicular to the axis of described conductor (10), and described installing hole (22,42) is positioned at the outer sectional dimension of described maximum of described first connector portions.
3. joint as claimed in claim 1 or 2, it is characterized in that, described first connector portions (14) is a hollow, and each described installing hole (22) have the hollow space that is positioned at described first connector portions the inboard, be used to insert second opening of described installation component (24).
4. joint as claimed in claim 1 or 2 is characterized in that, described first connector portions (14) is solid body, and each described installing hole (42) extends through the bottom that described solid body also further passes described endoporus (18).
5. joint as claimed in claim 4 is characterized in that, each described installing hole (42) has free-ended second opening that is positioned at described first connector portions (14).
6. as each described joint in the above-mentioned claim, it is characterized in that described joint is made for one.
7. joint as claimed in claim 3 is characterized in that, the endoporus (18) of described second connector portions (16) separates by isolating midfeather (36) with the hollow space of described first connector portions, and described installing hole (22) is formed in the described midfeather.
8. bushing, it comprises as each described outer jointing among the claim 1-7.
9. high-pressure installation, it comprises bushing as claimed in claim 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08155694A EP2117014B1 (en) | 2008-05-06 | 2008-05-06 | High voltage bushing contact, high voltage bushing comprising such contact and high voltage device comprising bushing with such contact |
| EP08155694.6 | 2008-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101577375A true CN101577375A (en) | 2009-11-11 |
| CN101577375B CN101577375B (en) | 2013-07-31 |
Family
ID=39760519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810127104.3A Active CN101577375B (en) | 2008-05-06 | 2008-06-19 | High voltage bushing contact, high voltage bushing and high voltage device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2117014B1 (en) |
| CN (1) | CN101577375B (en) |
| AT (1) | ATE521069T1 (en) |
| BR (1) | BRPI0912526A2 (en) |
| WO (1) | WO2009135743A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280749A (en) * | 2013-05-17 | 2013-09-04 | 国家电网公司 | Single conductor wiring tube |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289006A (en) * | 1990-04-04 | 1991-12-19 | Toshiba Corp | Coaxial feeder |
| CN1230300A (en) * | 1996-08-16 | 1999-09-29 | 西门子公司 | Shell-enclosed gas-insulated high-voltage installations with bulkhead-shaped connection assemblies |
| US20020061688A1 (en) * | 2000-11-17 | 2002-05-23 | Yazaki Corporation | Connecting structure and connecting method of terminal fitting and electric wire |
| CN101136280A (en) * | 2006-08-31 | 2008-03-05 | Abb技术有限公司 | High voltage equipment, high voltage bushing and method for assembling said equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1877586A (en) * | 1930-02-15 | 1932-09-13 | Delta Star Electric Co | Top cap assembly for high voltage bushings |
| US2381787A (en) * | 1942-09-17 | 1945-08-07 | Gen Electric | Bushing |
| DE1713124U (en) * | 1954-10-30 | 1955-12-15 | Siemens Ag | HIGH VOLTAGE INSULATOR FOR CABLE END CLOSURES. |
| US3258523A (en) * | 1964-09-30 | 1966-06-28 | Westinghouse Electric Corp | Electrical bushing assembly |
-
2008
- 2008-05-06 EP EP08155694A patent/EP2117014B1/en active Active
- 2008-05-06 AT AT08155694T patent/ATE521069T1/en not_active IP Right Cessation
- 2008-06-19 CN CN200810127104.3A patent/CN101577375B/en active Active
-
2009
- 2009-04-07 BR BRPI0912526A patent/BRPI0912526A2/en not_active IP Right Cessation
- 2009-04-07 WO PCT/EP2009/054158 patent/WO2009135743A1/en not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03289006A (en) * | 1990-04-04 | 1991-12-19 | Toshiba Corp | Coaxial feeder |
| CN1230300A (en) * | 1996-08-16 | 1999-09-29 | 西门子公司 | Shell-enclosed gas-insulated high-voltage installations with bulkhead-shaped connection assemblies |
| US20020061688A1 (en) * | 2000-11-17 | 2002-05-23 | Yazaki Corporation | Connecting structure and connecting method of terminal fitting and electric wire |
| CN101136280A (en) * | 2006-08-31 | 2008-03-05 | Abb技术有限公司 | High voltage equipment, high voltage bushing and method for assembling said equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2117014B1 (en) | 2011-08-17 |
| EP2117014A1 (en) | 2009-11-11 |
| BRPI0912526A2 (en) | 2015-10-13 |
| WO2009135743A1 (en) | 2009-11-12 |
| CN101577375B (en) | 2013-07-31 |
| ATE521069T1 (en) | 2011-09-15 |
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Effective date of registration: 20180426 Address after: Baden, Switzerland Patentee after: ABB Switzerland Co.,Ltd. Address before: Zurich Patentee before: ABB TECHNOLOGY Ltd. |
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Effective date of registration: 20210519 Address after: Baden, Switzerland Patentee after: ABB grid Switzerland AG Address before: Baden, Switzerland Patentee before: ABB Switzerland Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
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Effective date of registration: 20240114 Address after: Zurich, SUI Patentee after: Hitachi Energy Co.,Ltd. Address before: Swiss Baden Patentee before: Hitachi energy Switzerland AG |