CN106782940A - A kind of high-voltage direct-current sleeve of electric resistance partial pressure - Google Patents
A kind of high-voltage direct-current sleeve of electric resistance partial pressure Download PDFInfo
- Publication number
- CN106782940A CN106782940A CN201710054559.6A CN201710054559A CN106782940A CN 106782940 A CN106782940 A CN 106782940A CN 201710054559 A CN201710054559 A CN 201710054559A CN 106782940 A CN106782940 A CN 106782940A
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- Prior art keywords
- sleeve
- insulating
- insulating sleeve
- target
- sublayer
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Classifications
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- 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
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
-
- 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
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
-
- 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
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention discloses a kind of high-voltage direct-current sleeve of electric resistance partial pressure, including insulating sleeve and the high-pressure conductor being arranged in insulating sleeve, insulating sleeve is made up of top insulating sublayer sleeve pipe together with the insulating sublayer sleeve pipe mucilage binding of bottom, and top insulating sublayer sleeve pipe is linked together and constituted by epimere insulating sleeve and hypomere insulating sleeve；Top insulating sublayer internal surface of casing is provided with pressure unit；High-pressure conductor includes contact tube and target, the contact tube runs through insulating sleeve, target is located in hypomere insulating sleeve, and extend in the insulating sublayer sleeve pipe of bottom, ground connection flange is provided with hypomere insulating sleeve bottom, coaxial cylindrical electric field is constituted between contact tube, target and ground connection flange three；Target upper end is connected with insulation rebound, and target lower end is connected with lower insulation rebound；Filled with SF6 insulating gas inside insulating sleeve.With short production cycle, low cost of manufacture of the invention, bending strength are high, safe and reliable to operation, significantly improve electric property.
Description
Technical field
The present invention relates to a kind of high voltage DC transformers sleeve pipe, specially a kind of high-voltage direct-current sleeve of electric resistance partial pressure.
Background technology
Conventional high-pressure DC transformer bushing uses glue impregnated paper capacitor core to make as major insulation, or with oiled paper capacity casing
It is fuse, Fig. 2 is traditional paper condenser DC bushing schematic diagram；In figure, 12 is porcelain overcoat；13 is oilpaper capacitor core.Two
Person, as element is pressed, inside fills SF6 gases as dielectric using capacitor layers.Glue impregnated paper capacitor core length is more long, directly
Footpath is bigger, and pouring technology is more complicated, and qualification rate is lower, therefore glue impregnated paper capacitor core length is restricted.Glue impregnated paper capacitance core
Son is too short, causes sleeve pipe air end non-uniform electric, and external insulation is concentrated near electric field at mounting flange.
The filth of high direct voltage sleeve pipe is characterized in contamination and distributed pole is uneven, especially high close to mounting flange and outlet
Laminate section contamination is serious, and the flashover under working voltage is caused in humidity or under the conditions of drenching with rain.When the pollution layer along external insulation surface
When electrical conductivity difference is larger, the filth of external insulation can cause the rising of interior insulation partial electric-field.Extra-high voltage direct-current sleeve pipe external insulation
It is relatively large in diameter, height is higher, it is very high to mould requirement during production, cause production cost also very high, production difficulty becomes big.
The content of the invention
To overcome the deficiency of prior art, it is an object of the invention to provide a kind of high-voltage direct-current sleeve of electric resistance partial pressure, should
Sleeve pipe improves the electric property of sleeve pipe, and with short production cycle, lightweight, low cost of manufacture, bending strength are high, operation safety can
Lean on.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of high-voltage direct-current sleeve of electric resistance partial pressure, including insulating sleeve and the high-pressure conductor being arranged in insulating sleeve, it is special
Levy and be：The insulating sleeve is made up of top insulating sublayer sleeve pipe together with the insulating sublayer sleeve pipe mucilage binding of bottom, wherein, top
Insulating sleeve is linked together and is constituted by epimere insulating sleeve and hypomere insulating sleeve；The top insulating sublayer internal surface of casing sets
Having makes the top insulating sublayer equally distributed pressure unit of sleeve surface voltage；The high-pressure conductor includes contact tube and centre electricity
Pole, the contact tube runs through insulating sleeve, and the target is located in hypomere insulating sleeve, and extends to bottom absolutely
In edge sleeve pipe, ground connection flange is provided with hypomere insulating sleeve bottom, is constituted between contact tube, target and ground connection flange three
Coaxial cylindrical electric field；Target upper end is connected with insulation rebound, and target lower end is connected with lower insulation rebound；
Packing spring structure is provided with the top of insulating sleeve；Filled with SF6 insulating gas inside the insulating sleeve.
Further, the pressure unit uses enamel-cover resistance wire, enamel-cover resistance wire to be evenly distributed on the interior table of insulating sleeve
Face.
The insulating sleeve material selection glass fiber reinforced plastics hollow composite insulator.The insulating sleeve outer surface is provided with silicon rubber
Umbrella cover.Together with epimere insulating sleeve is bolted with hypomere insulating sleeve.
In the present invention, insulating sleeve is Split type structure, including the upper and lower two sub- insulating sleeves being fixed together, and often
Section selects different-diameter according to actual needs, reduces the production difficulty and production cost of insulating sleeve 6, and glue is used between often saving
Assembling structure, enhances integral bending.Insulating sleeve top is provided with spring structure and seal to ensure integral sealing.It is conductive
Pipe as insulating sleeve current－carrying conductor, pressure unit uses resistance wire, and release in time makes insulator surface idle space electric charge.
Beneficial effects of the present invention：With short production cycle, lightweight, low cost of manufacture of the invention, bending strength are high, operation peace
It is complete reliable and significantly improve electric property.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is traditional paper condenser DC bushing schematic diagram；
In figure, 1- contact tubes, 2- targets；3- is grounded flange；Insulate rebound on 4-；Insulate rebound under 5-；6- insulate
Sleeve pipe；61- tops insulating sublayer sleeve pipe；62- bottoms insulating sublayer sleeve pipe；611- epimere insulating sleeves；612- hypomere insulating sleeves；7-
Resistance wire；8-SF6 insulating gas；9- spring structures；12- porcelain overcoats；13- oilpaper capacitor cores.
Specific embodiment
The present invention and its specific embodiment are described in further detail below：
Such as Fig. 1, a kind of high-voltage direct-current sleeve of electric resistance partial pressure, including insulating sleeve 6 and the high pressure being arranged in insulating sleeve are led
Body.Insulating sleeve is made up of top insulating sublayer sleeve pipe 61 together with the mucilage binding of bottom insulating sublayer sleeve pipe 62, wherein, top insulating sublayer
Sleeve pipe by epimere insulating sleeve 611 be bolted with hypomere insulating sleeve 612 together with constitute；In the insulating sublayer sleeve pipe of top
Surface is provided with makes the top insulating sublayer equally distributed pressure unit of sleeve surface voltage；The high-pressure conductor includes the He of contact tube 1
Target 2, contact tube runs through insulating sleeve, and the target is located in hypomere insulating sleeve, and extends to bottom
In insulating sublayer sleeve pipe 62, ground connection flange 3 is provided with the bottom of hypomere insulating sleeve 612.Contact tube, target and ground connection flange three
Coaxial cylindrical electric field is constituted between person.Target upper end is connected with insulation rebound 4, and target lower end is connected with lower exhausted
Edge rebound 5.Packing spring structure 9 is provided with the top of insulating sleeve；Filled with SF6 insulating gas 8 inside insulating sleeve.
Pressure unit uses enamel-cover resistance wire 7, enamel-cover resistance wire to be evenly distributed on the inner surface of insulating sleeve, insulating sleeve
The voltage of inner surface is distributed by resistance completely, by the voltage of the voltage clamp outer surface of inner surface, makes insulating sleeve surface electricity
Pressure is evenly distributed, while electric charge can effectively be discharged, it is to avoid harmful electric discharge and harmful Ion transfer, improves electrically
Performance and used life.
In the present invention, insulating sleeve 6 is Split type structure, including the top insulating sublayer sleeve pipe that is fixed together and bottom are absolutely
Edge sleeve pipe, wherein, top insulating sublayer sleeve pipe is made up of epimere insulating sleeve and hypomere insulating sleeve again, and factually border needs per root section
Different-diameter is selected, the production difficulty and production cost of insulating sleeve 6 is reduced, mucilage binding structure, enhancing are used between often saving
Integral bending.Insulating sleeve 6 uses glass steel material, and outer surface has silicon rubber umbrella, and its top is provided with spring knot
Structure 9 and seal are ensureing integral sealing.High-pressure conductor includes contact tube 1, target 2 and ground connection flange 3, shape between three
Into coaxial cylindrical electric field, and the SF6 insulating gas of certain pressure is filled as medium, contact tube 1 in the insulating sleeve of sealing
Ballast current conductor is carried as insulating sleeve 6, in high potential, target 2 and upper insulation rebound 4 and lower insulation rebound 5
Connection, three's equipotential, the voltage of target 2 is about high voltage half, and ground connection flange 3 is in ground potential.
Claims (5)
1. a kind of high-voltage direct-current sleeve of electric resistance partial pressure, including insulating sleeve（6）Be arranged on insulating sleeve（6）Interior high pressure is led
Body, it is characterised in that：The insulating sleeve（6）By top insulating sublayer sleeve pipe（61）With bottom insulating sublayer sleeve pipe（62）Mucilage binding is one
Rise and constitute, wherein, top insulating sublayer sleeve pipe（61）By epimere insulating sleeve（611）With hypomere insulating sleeve（612）It is connected to one
Rise and constitute；The top insulating sublayer sleeve pipe（61）Inner surface is provided with makes top insulating sublayer sleeve pipe（61）Surface voltage is equally distributed
Pressure unit；The high-pressure conductor includes contact tube（1）And target（2）, the contact tube（1）Through insulating sleeve（6）,
The target（2）Positioned at hypomere insulating sleeve（612）It is interior, and extend to bottom insulating sublayer sleeve pipe（62）It is interior, under
Section insulating sleeve（612）Bottom is provided with ground connection flange（3）, contact tube（1）, target（2）With ground connection flange（3）Between three
Composition coaxial cylindrical electric field；Target（2）Upper end is connected with insulation rebound（4）, target（2）Lower end is connected with down
Insulation rebound（5）；In insulating sleeve（6）Top be provided with Packing spring structure（9）；The insulating sleeve（6）It is internal filled with
SF6 insulating gas（8）.
2. the high-voltage direct-current sleeve of electric resistance partial pressure according to claim 1, it is characterised in that：The pressure unit is using paint
Bag resistance wire（7）, enamel-cover resistance wire（7）It is evenly distributed on insulating sleeve（6）Inner surface.
3. the high-voltage direct-current sleeve of electric resistance partial pressure according to claim 1, it is characterised in that：The insulating sleeve（6）Material
Matter selects glass fiber reinforced plastics hollow composite insulator.
4. the high-voltage direct-current sleeve of electric resistance partial pressure according to claim 1, it is characterised in that：The insulating sleeve（6）Outward
Surface is provided with silicon rubber umbrella.
5. the high-voltage direct-current sleeve of electric resistance partial pressure according to claim 1, it is characterised in that：Epimere insulating sleeve（611）
With hypomere insulating sleeve（612）It is bolted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054559.6A CN106782940A (en) | 2017-01-24 | 2017-01-24 | A kind of high-voltage direct-current sleeve of electric resistance partial pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710054559.6A CN106782940A (en) | 2017-01-24 | 2017-01-24 | A kind of high-voltage direct-current sleeve of electric resistance partial pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106782940A true CN106782940A (en) | 2017-05-31 |
Family
ID=58942582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710054559.6A Pending CN106782940A (en) | 2017-01-24 | 2017-01-24 | A kind of high-voltage direct-current sleeve of electric resistance partial pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106782940A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481848A (en) * | 2017-08-08 | 2017-12-15 | 江苏智达高压电气有限公司 | A kind of new structure gas-insulated transformer sleeve pipe |
| CN109103004A (en) * | 2018-08-28 | 2018-12-28 | 山东电力设备有限公司 | A kind of casing using horizontally disposed double sealing structure |
| CN109378185A (en) * | 2018-10-24 | 2019-02-22 | 南京智达电气设备有限公司 | A kind of extra-high moulding impregnated paper alternating current-direct current condenser-type terminal |
| CN112562948A (en) * | 2020-12-11 | 2021-03-26 | 国网湖南省电力有限公司 | Series combined gap lightning arrester |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456473A (en) * | 2013-09-11 | 2013-12-18 | 江苏智达高压电气有限公司 | Integral type oil-paper high-voltage bushing |
| CN203503442U (en) * | 2013-09-11 | 2014-03-26 | 江苏智达高压电气有限公司 | Integral-type oil-impregnated paper high-voltage bushing |
| EP2827343A1 (en) * | 2012-03-14 | 2015-01-21 | Yazaki Corporation | Coaxial cable, and method for producing coaxial cable |
| CN106099794A (en) * | 2016-08-22 | 2016-11-09 | 江苏智达高压电气有限公司 | A kind of ultrahigh voltage direct current wall bushing |
| CN106205901A (en) * | 2016-08-25 | 2016-12-07 | 江苏智达高压电气有限公司 | A kind of new structure extra-high voltage or superhigh voltage DC insulator |
-
2017
- 2017-01-24 CN CN201710054559.6A patent/CN106782940A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2827343A1 (en) * | 2012-03-14 | 2015-01-21 | Yazaki Corporation | Coaxial cable, and method for producing coaxial cable |
| CN103456473A (en) * | 2013-09-11 | 2013-12-18 | 江苏智达高压电气有限公司 | Integral type oil-paper high-voltage bushing |
| CN203503442U (en) * | 2013-09-11 | 2014-03-26 | 江苏智达高压电气有限公司 | Integral-type oil-impregnated paper high-voltage bushing |
| CN106099794A (en) * | 2016-08-22 | 2016-11-09 | 江苏智达高压电气有限公司 | A kind of ultrahigh voltage direct current wall bushing |
| CN106205901A (en) * | 2016-08-25 | 2016-12-07 | 江苏智达高压电气有限公司 | A kind of new structure extra-high voltage or superhigh voltage DC insulator |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481848A (en) * | 2017-08-08 | 2017-12-15 | 江苏智达高压电气有限公司 | A kind of new structure gas-insulated transformer sleeve pipe |
| CN109103004A (en) * | 2018-08-28 | 2018-12-28 | 山东电力设备有限公司 | A kind of casing using horizontally disposed double sealing structure |
| CN109378185A (en) * | 2018-10-24 | 2019-02-22 | 南京智达电气设备有限公司 | A kind of extra-high moulding impregnated paper alternating current-direct current condenser-type terminal |
| CN112562948A (en) * | 2020-12-11 | 2021-03-26 | 国网湖南省电力有限公司 | Series combined gap lightning arrester |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |
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