CN102693790B - Interlayer skew preventing member and oil impregnated paper capacitance graded bushing for oil-paper capacitor core - Google Patents
Interlayer skew preventing member and oil impregnated paper capacitance graded bushing for oil-paper capacitor core Download PDFInfo
- Publication number
- CN102693790B CN102693790B CN201210079779.1A CN201210079779A CN102693790B CN 102693790 B CN102693790 B CN 102693790B CN 201210079779 A CN201210079779 A CN 201210079779A CN 102693790 B CN102693790 B CN 102693790B
- Authority
- CN
- China
- Prior art keywords
- oil
- capacitor core
- paper
- preventing member
- interlayer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Insulating Bodies (AREA)
- Insulators (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Even if problem of the present invention is to provide a kind of and has completed the center conductor of capacitor core coiling in vertical processing, oil-paper capacitor core interlayer skew preventing member skew preventing member and oil impregnated paper capacitance graded bushing that also simply and effectively between preventing layer, skew comes off. The method that solves problem is as follows. Form the bottom of capacitor core (2) with multistage shape, and installation comprises the interlayer skew preventing member of multiple annular components (3) and cylindrical component (4), multiple annular components (3) bear below the end difference of capacitor core (2), and cylindrical component (4) is configured between these annular components (3). Thus, even the skew of hanging center conductor (1) between also can genetic horizon. This interlayer skew preventing member is made up of press board, and after impregnation insulating oil direct-assembling at inside pipe casing.
Description
Technical field
The present invention relates to a kind of oil-paper capacitor core interlayer skew preventing member and oil-paper electric capacityFormula sleeve pipe.
Background technology
The oil impregnated paper capacitance graded bushing of supporting for high-voltage power line insulation is a kind of at central guidingBody forms electric field around and relaxes the sleeve pipe with capacitor core, and wherein, this capacitor core is as patent literary compositionOffering record in 1 such, is alternating layer product ten layer insulating oil-paper and electrode layer metal formingStructure.
When manufacture, by oil-paper and metal forming are alternately wound on to horizontally disposed center conductorPeriphery carry out, still, because needs will have dysgenic binding agent to electrical characteristicUse be limited in Min., therefore, each interlayer is only by simple and easy bonding but not can be firmBe bonded together. Therefore, vertically draw hang complete capacitor core reel center conductor andCarry out in the operation of sleeve-assembled, the interlayer that has an oil-paper capacitor core because of gravity downwardsThe danger of skew.
In addition, in more small-sized sleeve pipe, oil-paper capacitor core is small-sized and lightweight, soMake vertically drawing under the state hanging, between the simple and easy bonding while utilizing winding core and insulating paperFrictional force, is offset between can genetic horizon and comes off. But, in large molded cannula more than 500kV,Self also becomes the weight that exceedes 300kg oil-paper capacitor core, therefore can produce skew and come offDanger.
If there is the interlayer skew of such oil-paper capacitor core, just cannot bring into play designed thatThe electric field of sample relaxes ability. In addition, also can estimate that in assembly operation, weight falls causedThe possibility that processing safety is impaired. But, also there is the above making number of molded cannula greatly of 500kVThe reason that order is few, therefore also does not find to be conceived to the prior art document of this problem.
Prior art document
Patent documentation 1: JP 2006-107895 communique (0014 section)
Summary of the invention
The problem that invention will solve
Therefore, the object of the invention is to solve above-mentioned existing issue point, even if provide one to existVertical processing has completed in the situation of center conductor of capacitor core coiling, also can simply cutBetween preventing layer, skew comes off on the spot oil-paper capacitor core interlayer skew preventing member and oil immersionPaper capacitor formula sleeve pipe.
Solve the method for problem
Anti-for solving the oil-paper capacitor core interlayer skew of the present invention that above-mentioned problem proposesStop member, is characterized in that, comprise multiple annular components and be configured in described multiple annular component itBetween multiple cylindrical components, described multiple annular components are for bearing electric capacity with stepped formationBelow the end difference of fuse, described multiple annular components and described multiple cylindrical component are by the material that insulateMaterial forms.
In addition, preferably, the dielectric constant of described insulating materials is being used to form capacitor coreThe 0.8-1.3 of oil-paper dielectric constant times scope. Preferred described insulating materials is by inciting somebody to action in additionOil is impregnated in press board and forms. Preferably be provided with hole in the upper and lower end parts of cylindrical component in additionOr groove.
In addition, oil impregnated paper capacitance graded bushing of the present invention, is characterized in that, comprises that lower end is provided withThe oil-paper capacitor core of multiple end differences, and be arranged on described oil-paper capacitor core lower endDescribed oil-paper capacitor core be offset preventing member with interlayer. In addition, can be by oil-paper capacitance coreSon is arranged on that little side part of diameter in capacitor core bottom by interlayer skew preventing member.
Further, the manufacture method of oil impregnated paper capacitance graded bushing of the present invention, is characterized in that,The periphery of center conductor forms oil-paper capacitor core, and this oil-paper capacitor core lower end is provided with manyIndividual end difference is installed layer for described oil-paper capacitor core with drying regime below this end differenceBetween be offset preventing member, thereafter by vacuum drying impregnation method, oil is impregnated in to oil-paper electricity simultaneouslyHold fuse and oil-paper capacitor core and be offset preventing member with interlayer, and so that oil-paper electricity to be installedThe state that holds fuse interlayer skew preventing member is directly installed on the inside of porcelain tube.
Invention effect
According to the present invention, will use below multiple end differences of the capacitor core with stepped formation by absolutelyMultiple annular components that edge material forms and the cylindrical component being configured between these annular components prop upSupport, therefore, has completed the center conductor that capacitor core is reeled, capacitor core even if vertically slingInterlayer also can not be offset. In addition, oil-paper capacitor core with interlayer skew preventing member underEnd is supported by the disk that is fixed on center conductor. In addition, oil-paper capacitor core is exhausted in impregnationDrying process before edge oil shrinks, and still, interlayer skew preventing member of the present invention is by multiple partsForm, therefore, can tackle contraction and easily reset.
According to the present invention, if make the dielectric constant of insulating materials be used to form the oil of capacitor coreSoak the scope of 0.8-1.3 times of paper dielectric constant, just can not be sent out by the electric field of capacitor core controlRaw large confusion.
According to the present invention, if use the material that oil is impregnated in to press board (Pressboard)Material, as insulating materials, not only has and the dielectric strength of oil-paper same degree, and byIn the electric field that capacitor core is controlled, can not produce the harmful effect of electrical resistance.
According to the present invention, if implemented the knot of hole or groove processing in the upper and lower end parts of cylindrical componentStructure, even containing after immersion oil, also can untie through the cotton band of these through holes or groove etc., easily carries outThe operation of refitting.
In addition, oil impregnated paper capacitance graded bushing of the present invention, with the lower end of multistage shape formation capacitor corePortion, and above-mentioned oil-paper capacitor core interlayer is installed is offset preventing member, therefore, can conscientiously prop upBelow the end difference of support capacitor core, between preventing layer, be offset.
According to the present invention, if that little side part of diameter in the bottom of capacitor core onlyBetween mounting layer, be offset the structure of preventing member, improve the operability of installing, resetting. In addition diameter,Its length of large part is little and lightweight, and the possibility being therefore offset between genetic horizon is little.
Further, according to the manufacture method of oil impregnated paper capacitance graded bushing of the present invention, can withoutThe fitting operation of interlayer skew preventing member is carried out in the inside of impregnation oil vessel, assembles thereby can improveOperability.
Brief description of the drawings
Fig. 1 is the mode sectional drawing that represents capacitor core.
Fig. 2 is the mode sectional drawing that represents the capacitor core that interlayer skew preventing member is installed.
Fig. 3 is the stereogram that is only offset preventing member between presentation layer.
Fig. 4 is the horizontal cross that represents the state having fettered with band.
Fig. 5 is the cutaway view of sleeve pipe bottom.
Reference numeral
1 center conductor
2 capacitor cores
3 annular components
4 cylindrical components
5 holes
6 rope or adhesive tapes
7 ring-type smelting tools
8 porcelain tubes
9 foot metalworks
10 trip bolts
Specific embodiments
Below, the preferred embodiment of the invention is described.
Fig. 1 is that the pattern that is illustrated in the state of surrounding's winding capacitance fuse 2 of center conductor 1 is cutd openFace figure. As mentioned above, capacitor core 2 is by oil-paper and alternately lamination shape of metal forming (aluminium foil)Become the capacitor of tens of layers, for relaxing electric field. Conventionally its lower end is mild taper, still,In the present invention, the lower end of capacitor core 2 is formed as to multistage shape as shown in Figure 1. WithPrior art similarly, is carried out capacitor core 2 under the state that is horizontally disposed with center conductor 1Reel. In this stage, capacitor core 2 is in drying regime.
Then, in the bottom of capacitor core 2, oil of the present invention is installed as shown in Figure 2Soak paper capacitor fuse interlayer and be offset preventing member. Oil-paper capacitor core is offset preventing member with interlayerComprise such as shown in Figure 3 multiple annular components 3 and be configured in these annular components 3 itBetween cylindrical component 4, these members form by insulating materials. Annular component 3 is and capacitance coreSon 2 with the bottom of stepped formation, i.e. mutually closely sealed member below end difference, and withThe external diameter of the bottom of capacitor core 2 matches and uses the annular component of multiple different sizes3. In addition, without below the whole end difference of capacitor core 2 bottoms, annular component being installed3, only install in that smaller side part of diameter. Because the part that diameter is large is lightweight,So do not have the danger that skew comes off, therefore, by limiting like this installation position, just can improveOperability also can realize the reduction of cost.
Cylindrical component 4 is configured between the annular component up and down 3,3 of adjacency, is for supportingThe member of load. In this embodiment, there are four cylindrical components 4 with 90 ° of arranged spaced, butAlso can be more than 3 or 5. It is porose 5 that the upper and lower end parts of cylindrical component 4 forms, as figureShown in 5, rope or belt 6 is passed to these holes 5, thereby entirety can be fixed on to capacitor core2 periphery. In addition, also can carry out instead of holes 5 at end working groove. By adopting such groupFill the structure of multiple parts, can easily reset, for example, can tackle vacuum and heating dryingThe contraction of caused capacitor core 2 and easily resetting.
These annular components 3 and cylindrical component 4 are members that former state is assembled in inside pipe casing, because ofThis needs these members is that the electrical characteristic to sleeve pipe does not produce dysgenic material, certainly mustMust be moisture free insulator, and must be not have the material that causes the concentrated part of electric fieldMatter, wherein, the sneaking into of metal impurities, fluff, scatter, break, slight crack etc. can cause electricityConcentrate field. If especially pick-up metal impurity, the danger of flashover increases, therefore from factoryFamily takes the precautionary measures such as X-ray examination when shipment. In addition, require compression ratio little, compressionIntensity, bending strength, shear strength are high. For compressive strength, in the time considering to move up and downInertia force is to give the possibility (likelihood) of 5 times in the situation of 2G, adopts and has electricityThe material of 10 times of above compressive strengths of pressure that appearance fuse produces. Further require at leastThere is the service life of 30 years.
In this embodiment, as the material that meets above-mentioned each characteristic, use high-purity paper pulpThe press board (Pressboard) of the lamination of pressurizeing (two kinds of JIS_C2305 regulation(PB2)). This press board is also the insulant for transformer, is a kind of at insulating oilIn use all the year round the material with real result that also do not change. In addition, if intensity is large,Energy load-supporting, can be cut to the size needing at the scene. In addition, in order to prevent moisture pairThe impact of insulating oil, preferably carries out vacuum and heating drying containing before being immersed in oil, in advance except anhydratingPoint.
Preferably, exist for the dielectric constant of the insulating materials of annular component 3 and cylindrical component 4Within the scope of 0.8-1.3 times of the oil-paper dielectric constant of formation capacitor core 2. So useThe material close with dielectric constant, thus the electric field of being controlled by capacitor core 2 can not occur greatlyConfusion. Impregnation the press board of insulating oil have with the insulation of oil-paper same degree strongDegree.
Above-mentioned annular component 3 and cylindrical component 4 be the feelings in level at center conductor 1Under condition, be arranged on the bottom of capacitor core 2 with drying regime. As shown in Figure 2, interlayer is inclined to one sideThe lowest end of the stop member of being shifted elsewhere for garrison duty is closely sealed with the ring-type smelting tool 7 that screw-in is fixed on center conductor 1, fromAnd can bear load. In addition, for linking the material of rope or belt 6 of cylindrical component 4Also need be insulation and be the material that impossible cause electric field concentrated, in this embodiment, useTextile band.
Then utilize crane etc. that its entirety is sling, be transferred to vacuum and heating drying device. ?Make vertical slinging like this, below the end difference of capacitor core 2, supported by ring-type smelting tool 7,Therefore can there is not the phenomenon that skew comes off. Fully remove capacitor core by vacuum and heating drying2 and interlayer skew preventing member in moisture after, in capacitor core 2 and interlayer skew preventing memberMiddle impregnation insulating oil.
After finishing, the impregnation of insulating oil adjusts as follows: take off ring-type smelting from center conductor 1Tool 7 and increase and decrease the number of annular component 3 after, foot metalwork 9 is installed, so that ring-typeMember 3 is not offset. Now, can on thickness direction, ring-type smelting tool 7 be cut and carry out thickness tuneWhole. As shown in Figure 5, be provided with trip bolt 10 at foot metalwork 9, to center conductor 1Bottom carry out fastening. Under this state, there is the center conductor 1 of capacitor core 2Assembling with porcelain tube 8. Although while carrying out this operation, center conductor 1 is also vertically sling, notCan produce skew comes off. Afterwards, insulating oil is injected into inside pipe casing.
In addition, capacitor core 2 entirety produce buoyancy while being impregnated in oil, therefore even withoutInterlayer skew preventing member, capacitor core 2 also can not be offset and come off thereafter, but owing to being omitted inIn oil, take off the operation of interlayer skew preventing member, therefore to be offset the state of preventing member between mounting layerProduct are directly become down.
As described above, according to the present invention, complete capacitor core even if vertically move or assemble2 center conductors 1 of reeling, also can simply and effectively prevent capacitor core 2 interlayer partiallyMove and come off, therefore can bring into play designed such electric field and relax ability, can also remove in addition assemblingThe danger that in operation, weight falls.
Claims (7)
1. oil-paper capacitor core is offset a preventing member with interlayer, it is characterized in that, comprises manyIndividual annular component and be configured in the multiple cylindrical components between described multiple annular component is described manyIndividual annular component is for bearing with below the end difference of the oil-paper capacitor core of stepped formation,Described oil-paper capacitor core with interlayer skew preventing member by by will described multiple annular components withDescribed multiple cylindrical component is assembled and forms, and described multiple annular component and described multipleCylindrical component is made up of insulating materials.
2. oil-paper capacitor core claimed in claim 1 is offset preventing member with interlayer, its featureBe, the dielectric constant of described insulating materials is normal in the oil-paper dielectric that is used to form capacitor core0.8-1.3 times of scope of number.
3. oil-paper capacitor core claimed in claim 2 is offset preventing member with interlayer, its featureBe, described insulating materials is by forming oil containing being immersed in press board.
4. oil-paper capacitor core claimed in claim 1 is offset preventing member with interlayer, its featureBe, be provided with hole or groove in the upper and lower end parts of cylindrical component.
5. an oil impregnated paper capacitance graded bushing, is characterized in that, comprises that lower end is provided with multiple laddersThe oil-paper capacitor core of portion, and be arranged on described oil-paper capacitor core lower end as rightRequire the oil-paper capacitor core described in any one in 1-4 to be offset preventing member with interlayer.
6. oil impregnated paper capacitance graded bushing claimed in claim 5, is characterized in that, by oil-paperCapacitor core is arranged on that little side of diameter in capacitor core bottom by interlayer skew preventing memberPart.
7. a manufacture method for oil impregnated paper capacitance graded bushing, is characterized in that, at center conductorPeriphery form oil-paper capacitor core, this oil-paper capacitor core lower end is provided with multiple end differences,Below this end difference, with drying regime, the oil-paper described in any one in claim 1-4 is installedCapacitor core is offset preventing member with interlayer, by vacuum drying impregnation method, oil is contained thereafter simultaneouslyBe dipped in oil-paper capacitor core and oil-paper capacitor core interlayer is offset preventing member, and with peaceThe state that has filled oil-paper capacitor core interlayer skew preventing member be directly installed on porcelain tube inPortion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011065299A JP5458047B2 (en) | 2011-03-24 | 2011-03-24 | Anti-layering prevention device for oil-immersed paper capacitor core and oil-impregnated paper capacitor bushing |
| JP2011-065299 | 2011-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102693790A CN102693790A (en) | 2012-09-26 |
| CN102693790B true CN102693790B (en) | 2016-05-25 |
Family
ID=46859166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210079779.1A Expired - Fee Related CN102693790B (en) | 2011-03-24 | 2012-03-23 | Interlayer skew preventing member and oil impregnated paper capacitance graded bushing for oil-paper capacitor core |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5458047B2 (en) |
| CN (1) | CN102693790B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801765B (en) * | 2018-12-26 | 2020-08-11 | 江苏神马电力股份有限公司 | Device and method for preventing deviation between conical capacitor core layers |
| CN114166777B (en) * | 2021-11-30 | 2023-09-01 | 海南电网有限责任公司电力科学研究院 | Near infrared spectrum influence factor correction method for insulating paper |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1160261A (en) * | 1965-08-10 | 1969-08-06 | Permali Ltd | Foiled Resin Bushings |
| US3490731A (en) * | 1969-03-26 | 1970-01-20 | Permali Inc | Bushing insulator molding device |
| JPS58220311A (en) * | 1982-06-17 | 1983-12-21 | 株式会社東芝 | Bushing |
| JPS6041714A (en) * | 1983-08-18 | 1985-03-05 | 株式会社東芝 | Bushing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1291272A (en) * | 1961-06-02 | 1962-04-20 | Method for the reverberation of sounds in a loudspeaker and loudspeaker for carrying out this method or similar method | |
| JPS53149692A (en) * | 1977-06-01 | 1978-12-27 | Hitachi Ltd | Capacitor bushing |
| JPS596505A (en) * | 1982-07-03 | 1984-01-13 | Toshiba Corp | Lead-out part of electric apparatus |
-
2011
- 2011-03-24 JP JP2011065299A patent/JP5458047B2/en not_active Expired - Fee Related
-
2012
- 2012-03-23 CN CN201210079779.1A patent/CN102693790B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1160261A (en) * | 1965-08-10 | 1969-08-06 | Permali Ltd | Foiled Resin Bushings |
| US3490731A (en) * | 1969-03-26 | 1970-01-20 | Permali Inc | Bushing insulator molding device |
| JPS58220311A (en) * | 1982-06-17 | 1983-12-21 | 株式会社東芝 | Bushing |
| JPS6041714A (en) * | 1983-08-18 | 1985-03-05 | 株式会社東芝 | Bushing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012204032A (en) | 2012-10-22 |
| JP5458047B2 (en) | 2014-04-02 |
| CN102693790A (en) | 2012-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102693790B (en) | Interlayer skew preventing member and oil impregnated paper capacitance graded bushing for oil-paper capacitor core | |
| CN206921504U (en) | Tone frequency channel wire | |
| CN106328283A (en) | Anti-rolling hanging-type cable | |
| CN201877257U (en) | High tension coil structure of epoxy resin cast dry type transformer | |
| CN205248085U (en) | Superhigh pressure device of being qualified for next round of competitions | |
| WO2011117889A2 (en) | Resin impregnated electrical bushing | |
| CN203659497U (en) | High-strength and easy-to-maintain data electric cable | |
| CN105427947A (en) | Fireproof monitoring cable | |
| CN109216028A (en) | A kind of anti-explosion film capacitor for preventing that electrical breakdown occurs between the shell of pole | |
| RU200839U1 (en) | High-frequency minelayer reactor | |
| CN107499755A (en) | A kind of middle low frequency diverter for floating roof tank | |
| CN206506257U (en) | A kind of overhead line anti-loose structure | |
| CN203826650U (en) | Mining flameproof multi-core wiring terminal | |
| CN103794279B (en) | A kind of high s/n ratio power cable | |
| CN201749702U (en) | Rubber sleeve cable | |
| CN104037529A (en) | Mining flame-proof multi-core binding post | |
| CN216818013U (en) | Capacitance core middle fixing structure of oiled paper capacitance type bushing | |
| CN206040386U (en) | Paper tinsel coil for transformer | |
| CN204649780U (en) | A kind of lead-in wire junction box for overhead conductor insulation test | |
| CN202905216U (en) | Mining aluminium alloy cable | |
| CN202422946U (en) | Secondary winding of electromagnetic type current transformer for GIS (gas insulated switchgear) | |
| WO2013140341A1 (en) | Electric cable | |
| CN105826051A (en) | Foil coil for transformer | |
| CN205789266U (en) | A kind of self-bearing type building lifting intelligence medium-pressure power cable | |
| CN202601235U (en) | Aluminum alloy cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20200323 |