CN107610931A - The manufacture method of reactive-load compensation capacitor - Google Patents
The manufacture method of reactive-load compensation capacitor Download PDFInfo
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- CN107610931A CN107610931A CN201710831766.8A CN201710831766A CN107610931A CN 107610931 A CN107610931 A CN 107610931A CN 201710831766 A CN201710831766 A CN 201710831766A CN 107610931 A CN107610931 A CN 107610931A
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- pole plate
- shell
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- manufacture method
- fuse
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Abstract
This patent application discloses the manufacture method of reactive-load compensation capacitor, comprise the following steps：Step 1, pole plate is rolled to form discrete component together with medium；Step 2, by the pole plate edge of each element according to coating width the coating semiconductor glue layer on inside and outside two sides；Step 3, coated pole plate edge is outwards turned down to form the flanging with camber line edge；Step 4, multiple element and insulating part are stacked to form fuse；Step 5, fuse is placed into the shell equipped with insulating oil；Step 6, porcelain bushing shell is arranged on the casing cover of outer casing top surface, the connection sheet in the top and porcelain bushing shell of fuse is connected；Step 7, casing cover is covered on shell, the terminals in porcelain bushing shell is stretched out upwards.
Description
Technical field
The present invention relates to field of transmission equipment, and in particular to the manufacture method of reactive-load compensation capacitor.
Background technology
Electric load such as motor, transformer etc. in power network, largely belong to inductive load, need in the process of running to
These equipment provide corresponding reactive power.After the reactive-load compensation equipments such as shunt capacitor are installed in power network, it can provide
The reactive power that inductive load is consumed, reduce the reactive power that electric network source is provided to inductive load, conveyed by circuit, by
In reducing flowing of the reactive power in power network, therefore it is electric caused by conveying reactive power to reduce circuit and transformer
Can loss.
Existing shunt capacitor, mainly it is made up of several parts such as shell, fuse and outlet structure.Fuse is only by several
Vertical element and insulating part laminates composition.Element electricity container paper（Or film）With kraft capacitor paper is compound does medium, use metal foil
Make pole plate and roll and form.Be filled with the dielectric oil for being used for impregnating fuse in shell, the lead of capacitor plate connection through string, simultaneously
Outlet structure is connected to after connection.By outlet structure shunt capacitor can be made to connect with other electronic components or electrical structure
Connect.Existing shunt capacitor structural stability is low, and service life is shorter, trace it to its cause be with the structure of present fuse and its
Manufacture has relation.For present fuse because not handling pole plate edge, generally existing has pole plate fringe field effect
Should.
Pole plate edge effect, refer to the larger electric field mutation of pole plate marginal existence, formation is local strong between making pole plate edge
Place, turn into the starting point of accident generation.According to the breakdown statistical conditions to shunt capacitor, most of breakdown points occur in pole plate
Edge.Especially when in fuse in the presence of the paper oil insulation defective workmanship such as bad is impregnated, easily trigger pole plate marginal discharge, even
Cause shunt capacitor explosion accident, serious harm power transformer etc. to be attached thereto and its nearby the safety of power equipment is transported
OK.
In consideration of it, applicant develops a kind of pole plate edge by processing, without the capacitor of pole plate fringe field effects.
It is exactly the manufacture method for this capacitor herein.
The content of the invention
The invention is intended to provide the manufacture method of reactive-load compensation capacitor, to solve existing shunt capacitor because pole plate side
Edge is untreated and the problem of pole plate fringe field effects occurs.
The manufacture method of reactive-load compensation capacitor, comprises the following steps：
Step 1, pole plate is rolled to form discrete component together with medium；
Step 2, by the pole plate edge of each element according to coating width the coating semiconductor glue layer on inside and outside two sides；
Step 3, coated pole plate edge is outwards turned down to form the flanging with camber line edge；
Step 4, multiple element and insulating part are stacked to form fuse；
Step 5, fuse is placed into the shell equipped with insulating oil；
Step 6, porcelain bushing shell is arranged on the casing cover of outer casing top surface, the connection sheet in the top and porcelain bushing shell of fuse is connected
Connect；
Step 7, casing cover is covered on shell, the terminals in porcelain bushing shell is stretched out upwards.
Explanation of nouns：
Outwards：Point to the direction away from medium.
Inside and outside：Refer to the one side close to medium and the one side away from medium.
Principle and effect：
The pole plate edge of existing capacitor is not handled, and pole plate edge is generally right angle condition, it is also possible to it is jagged with it is not concordant
Phenomenon, the pole plate edge of unprocessed mistake is very sharp in a word.And it is of the invention by the way that pole plate edge is outwards turned down once, i.e.,
Pole plate is subjected to flanging processing, the edge for making pole plate after turnover be the flanging with camber line contour edge, i.e. pole after processing
Edges of boards edge is arc shape, effectively reduce because sharp edges and caused by the mutation of the larger electric field in pole plate edge.Meanwhile pass through
Coated in the semi-conductor adhesive water layer on flanging, further gathering for the electric charge on pole plate edge is prevented, reduces pole plate fringing field
By force.Solve the problems, such as existing shunt capacitor because the pole plate fringe field effects that pole plate edge is untreated and occurs.
Further, in step 2, semi-conductor adhesive water layer coating is carried out according to the coating width of 12-22 millimeters.
The length of pole plate is typically all the specification for having several restrictions, the flanging of 12-22 mm wides, can make pole plate side
Camber line edge is formed after edge turnover, on the basis of the adverse effect that pole plate fringe field effects are brought is eliminated as much as possible,
It is unlikely to make flanging width long and reduce the area of pole plate and then influence capacitance again.
Further, in step 2, the semi-conductor adhesive water layer of coating is the heat conduction silicone that thickness is 0.1-0.2 millimeters.
Heat conductive silica gel has good heat conductivility and adhesive, except pole plate fringe field effects can be made effectively to reduce
Outside, moreover it is possible to flanging is sticked in more securely on pole plate, the shape at fixed polar plate edge, pole plate is turned over by flanging
After folding, the edge of pole plate is kept the shape at camber line edge, make the electric field mutation effectively drop formed originally because of sharp edges
It is low.And the thickness of 0.1-0.2 millimeters can make semiconductor glue on the basis of playing a role, it is unlikely to make semi-conductor adhesive water wave again
Take.
Further, in step 3, when turning down flanging, flanging is turned down to pole plate and passes through semi-conductor adhesive water layer
Untill being sticked together.
Flanging is turned down to pole plate and is sticked together, it is still a unification that can make by the pole plate that flanging is handled
Entirety, and flanging is sticked together with pole plate, and flanging can be enable to maintain the shape of turnover, is made by flanging
Pole plate edge after reason remains the structure of curved edge, effectively reduces the field effect problem that sharp edges are brought.
Further, between step 3 and step 4, by multiple element parallel connection or and connect.
The capacitance size of the capacitor manufactured as needed, selection element is in parallel or and connects.And connect and refer to
The existing attachment structure in parallel for having series connection again.
Further, between step 4 and step 5, shell is connected into dense steel plate soldering and sealing, insulating oil is loaded in shell.
The shell sealed by steel plate can play a very good protection, and elder generation loads in shell behind insulating oil convenience
Directly fuse is placed and wherein impregnated.
Further, before step 6, the inner side of porcelain bushing shell is coated into aluminium nitride ceramics layer.
Aluminium nitride thermal conductivity is good, and thermal coefficient of expansion is small, can play good radiating effect and heat shock resistance, aluminium nitride is also
It is electrical insulator, dielectric properties are good, can play insulating effect.Aluminium nitride ceramics layer, energy are coated on the inner side of porcelain bushing shell
It is enough that fuse in porcelain bushing shell, connection sheet and terminals are played with protection and guide effect, while can be by heat caused by them
Quick diffusing is gone out, and it is operated in a suitable operating temperature, avoids working at high temperature and reducing working life.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the longitudinal section of the pole plate of the embodiment of the present invention.
Fig. 3 is the longitudinal section of the pole plate of existing capacitor.
Embodiment
Below by embodiment, the present invention is further detailed explanation：
Reference in Figure of description includes：Shell 1, terminals 2, porcelain bushing shell 3, joint hinge 4, earth stud 5, pole plate 6, half
Conductor glue layer 7, flanging 8.
Embodiment is substantially as shown in Figures 1 and 2：Capacitor, including rectangular configuration is made of sheet metal sealing welding
Shell 1.On the top surface of shell 1 there is shell 1 to cover.Shell 1 covers three porcelain bushing shells 3 being welded with as outlet structure.Insulator
Pipe 3 is the porcelain bushing shell 3 that inner side is coated with aluminium nitride ceramics layer.Three are provided with inside shell 1 to be electrically connected with three porcelain bushing shells 3 respectively
Connect fuse.Connection sheet for being connected with fuse is installed inside porcelain bushing shell 3 and is connected with connection sheet and stretches out porcelain bushing shell 3
Terminals 2.
Fuse makes other electronic components can by being electrically connected with terminals 2 by being connected with connection sheet with terminals 2
Formed and connected with the fuse in capacitor.Porcelain bushing shell 3 is arranged on shell 1, is made to be formed on capacitor and is easy to and other electronics member
The outlet structure of device electrical connection.
Aluminium nitride thermal conductivity is good, and thermal coefficient of expansion is small, can play good radiating effect and heat shock resistance, aluminium nitride is also
It is electrical insulator, dielectric properties are good, can play insulating effect.Aluminium nitride ceramics layer, energy are coated on the inner side of porcelain bushing shell 3
It is enough that fuse in porcelain bushing shell 3, connection sheet and terminals 2 are played with protection and guide effect, while can be by heat caused by them
Amount Quick diffusing is gone out, and it is operated in a suitable operating temperature, is avoided working at high temperature and reducing working life.
The joint hinge 4 for installation is welded with the left and right sides of shell 1, wherein being provided with ground connection spiral shell on the joint hinge 4 on right side
Bolt 5.Capacitor is set to be arranged on any position for convenience.The joint hinge 4 for installing earth stud 5 is slidably connected at shell 1
On.Chute is provided with the right flank of shell 1, joint hinge 4 is slidably connected in chute, is also connected with for spacing joint hinge on chute
The limited block of 4 positions.Bolt thread is connected on joint hinge 4.
Fuse includes multiple element and the insulating part being stacked.Each element include pole plate 6 and roll pole plate 6 it
Between medium.Medium is that compound kraft capacitor paper and kraft capacitor paper or capacitor film and kraft capacitor paper are compound.Pole plate 6 can select
Rolled and formed with aluminium foil.The free ending tool of pole plate 6 has the turned-out flanging 8 rolled over and form camber line edge；Inside and outside the two of flanging 8
Side is coated with the semi-conductor adhesive water layer 7 that can carry out conductive and heat conduction.Semi-conductor adhesive water layer 7 is that thickness is 0.1-0.2 millis
The heat conduction silicone of rice.Heat conductive silica gel has good heat conductivility and adhesive, except that can make the fringe field effects of pole plate 6
Effectively reduce outer, moreover it is possible to flanging 8 is sticked in more securely on pole plate 6, the shape at the edge of fixed polar plate 6, pole plate 6 is existed
After the turnover of flanging 8, the edge of pole plate 6 is kept the shape at camber line edge, make to be formed because of sharp edges originally
Electric field mutation effectively reduces.And the thickness of 0.1-0.2 millimeters can make semiconductor glue on the basis of playing a role, it is unlikely to again
Make semi-conductor adhesive water waste.
The width of flanging 8 is 12-22 millimeters.The length of pole plate 6 typically has the specification of several restrictions, 12-22
The flanging 8 of mm wide, the edge of pole plate 6 can be made to form camber line edge after turning down, eliminate the edge of pole plate 6 electricity as much as possible
On the basis of the adverse effect that field-effect is brought, it is unlikely to make the width of flanging 8 long and reduce the area and then shadow of pole plate 6 again
Ring capacitance.
In order to adapt to various capacity and voltage, correspondingly each independent component in fuse can be connected into parallel or and gone here and there
Connection.
Medium can also select insulating paper or plastic sheeting.Gathered into folds a roll set with aluminium foil and insulating paper or plastic sheeting
Around, by some elements, insulating part and fastener by press fitting and form fuse, filling insulating oil in shell 1 impregnates fuse
Insulating oil.The lead of pole plate 6 leads to the outlet connection sheet of the lower end of outgoing line porcelain bushing pipe 3 after series and parallel.The metal shell of capacitor
Dielectric oil is filled with 1.
The impregnating agent of fuse is impregnated in addition to insulating oil, and impregnating agent typically also has mineral oil, chlorinated biphenyl, SF6 gases etc..
The surface of shell 1 of capacitor applies flame retardant paint.Be also equipped with the case lid of Large Copacity integrated capacitor conservator or metal expander and
Pressure relief valve, wall sides are equipped with flaky radiator, pressure type temperature control device etc..
As shown in figure 3, in existing shunt capacitor, because the edge of its pole plate 6 is very sharp, therefore on the side of pole plate 6
There is larger electric field mutation in edge, form local high electric area, turn into the starting point of accident generation.The present embodiment is by turning down pole plate 6
The flanging 8 at edge, the edge of pole plate 6 is set to be changed into the camber line edge that more relaxes, effectively reducing the side of pole plate 6 from sharp right angle
The electric field mutation of edge.Again because being coated with semi-conductor adhesive water layer 7 in the interior outside of flanging 8, effectively prevent because sharp edges
And the motion of the electronics gathered, slow down the electric field mutation at the edge of pole plate 6.
When manufacturing this capacitor, according to following steps：
Step 1, pole plate 6 is rolled to form discrete component together with medium；
Step 2, by the edge of pole plate 6 of each element according to coating width the coating semiconductor glue layer 7 on inside and outside two sides；
Wherein, the width of this coating is 12-22 millimeters, and the semi-conductor adhesive water layer 7 of coating can select heat conduction silicone or other
Glue layer with identical function；Wherein, the thickness of heat conduction silicone is 0.1-0.2 millimeters；
Step 3, the coated edge of pole plate 6 is outwards turned down to form the flanging 8 with camber line edge；Flanging 8 is by leading
Hot layer of silica gel is sticked on pole plate 6；
Step 4, by multiple element in parallel or in series, multiple element and insulating part are stacked to form fuse；
Step 5, shell 1 is connected into dense steel plate soldering and sealing, loads insulating oil in shell 1, fuse is placed into equipped with insulating oil
In shell 1；
Step 6, the shell 1 that porcelain bushing shell 3 is welded on to the top surface of shell 1 cover, by the connection in the top of fuse and porcelain bushing shell 3
Piece connects；
Step 7, shell 1 is covered on shell 1, the terminals 2 in porcelain bushing shell 3 is stretched out upwards.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description, technical field that the present invention belongs to is all before one skilled in the art know the applying date or priority date
Ordinary technical knowledge, prior art all in the field can be known, and with using normal experiment hand before the date
The ability of section, one skilled in the art can improve and implement under the enlightenment that the application provides with reference to self-ability
This programme, some typical known features or known method should not implement the application as one skilled in the art
Obstacle.It should be pointed out that for those skilled in the art, without departing from the structure of the invention, it can also make
Go out several modifications and improvements, these should also be considered as protection scope of the present invention, these effects implemented all without the influence present invention
Fruit and practical applicability.The scope of protection required by this application should be based on the content of the claims, the tool in specification
The records such as body embodiment can be used for the content for explaining claim.
Claims (7)
1. the manufacture method of reactive-load compensation capacitor, it is characterised in that：Comprise the following steps：
Step 1, pole plate is rolled to form discrete component together with medium；
Step 2, by the pole plate edge of each element according to coating width the coating semiconductor glue layer on inside and outside two sides；
Step 3, coated pole plate edge is outwards turned down to form the flanging with camber line edge；
Step 4, multiple element and insulating part are stacked to form fuse；
Step 5, fuse is placed into the shell equipped with insulating oil；
Step 6, porcelain bushing shell is arranged on the casing cover of outer casing top surface, the connection sheet in the top and porcelain bushing shell of fuse is connected
Connect；
Step 7, casing cover is covered on shell, the terminals in porcelain bushing shell is stretched out upwards.
2. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：In step 2, according to
The coating width of 12-22 millimeters carries out semi-conductor adhesive water layer coating.
3. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：In step 2, coating
Semi-conductor adhesive water layer be heat conduction silicone that thickness is 0.1-0.2 millimeters.
4. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：In step 3, turning over
During folded over flanging, flanging is turned down untill being sticked together with pole plate by semi-conductor adhesive water layer.
5. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：In step 3 and step 4
Between, by multiple element parallel connection or and connect.
6. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：In step 4 and step 5
Between, shell is connected into dense steel plate soldering and sealing, insulating oil is loaded in shell.
7. the manufacture method of reactive-load compensation capacitor according to claim 1, it is characterised in that：, will before step 6
The inner side coating aluminium nitride ceramics layer of porcelain bushing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831766.8A CN107610931A (en) | 2017-09-15 | 2017-09-15 | The manufacture method of reactive-load compensation capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831766.8A CN107610931A (en) | 2017-09-15 | 2017-09-15 | The manufacture method of reactive-load compensation capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN107610931A true CN107610931A (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710831766.8A Pending CN107610931A (en) | 2017-09-15 | 2017-09-15 | The manufacture method of reactive-load compensation capacitor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736764U (en) * | 2012-08-17 | 2013-02-13 | 上虞电力电容器有限公司 | Subassembly wrapper capable of improving capacitance of capacitor element |
| CN203966833U (en) * | 2014-07-05 | 2014-11-26 | 西安华超电力电容器有限公司 | The full film paper tinsel of low pressure oil immersion formula filtering capacitor |
| CN105118666A (en) * | 2015-09-11 | 2015-12-02 | 陈海花 | Capacitor |
| CN105185589A (en) * | 2015-06-19 | 2015-12-23 | 广西电网有限责任公司电力科学研究院 | 35kV high-voltage power capacitor |
| CN205376300U (en) * | 2016-01-25 | 2016-07-06 | 哈尔滨理工大学 | High voltage electricity capacitor element who contains " U " type insulated paper |
-
2017
- 2017-09-15 CN CN201710831766.8A patent/CN107610931A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202736764U (en) * | 2012-08-17 | 2013-02-13 | 上虞电力电容器有限公司 | Subassembly wrapper capable of improving capacitance of capacitor element |
| CN203966833U (en) * | 2014-07-05 | 2014-11-26 | 西安华超电力电容器有限公司 | The full film paper tinsel of low pressure oil immersion formula filtering capacitor |
| CN105185589A (en) * | 2015-06-19 | 2015-12-23 | 广西电网有限责任公司电力科学研究院 | 35kV high-voltage power capacitor |
| CN105118666A (en) * | 2015-09-11 | 2015-12-02 | 陈海花 | Capacitor |
| CN205376300U (en) * | 2016-01-25 | 2016-07-06 | 哈尔滨理工大学 | High voltage electricity capacitor element who contains " U " type insulated paper |
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Application publication date: 20180119 |