CN103456473B - A kind of integral type oil-paper bushing - Google Patents
A kind of integral type oil-paper bushing Download PDFInfo
- Publication number
- CN103456473B CN103456473B CN201310411398.3A CN201310411398A CN103456473B CN 103456473 B CN103456473 B CN 103456473B CN 201310411398 A CN201310411398 A CN 201310411398A CN 103456473 B CN103456473 B CN 103456473B
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- China
- Prior art keywords
- glass fibre
- reinforced plastic
- fibre reinforced
- plastic cylinder
- mounting flange
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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
- H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
- H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member
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- Insulators (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention discloses kind of an integral type oil-paper bushing, comprise glass fibre reinforced plastic cylinder, conducting rod, expander, mounting flange, base and voltage equalizing ball, the mounting flange being used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder hermetically; The outer side injection of glass fibre reinforced plastic cylinder on mounting flange top has silicon rubber umbrella, and outside the glass fibre reinforced plastic cylinder of mounting flange bottom, be coated with semiconductive varnish, this semiconductive varnish is formed and the isodiametric equipotential cylinder of flange; Be arranged on the bottom of glass fibre reinforced plastic cylinder base seal; Conducting rod to be inserted in glass fibre reinforced plastic cylinder and to form entirety with mounting flange, glass fibre reinforced plastic cylinder, base; Expander is arranged on the top of glass fibre reinforced plastic cylinder, and voltage equalizing ball is arranged on the bottom of glass fibre reinforced plastic cylinder.Structure of the present invention is simple, and the oil in sleeve pipe and transformer is completely isolated, and the probability that product breaks down significantly reduces, and can effectively avoid fire for transformer to burn.Product weight is light, and easy for installation, antidetonation anti-bending strength is good, substantially non-maintaining.
Description
Technical field
The present invention relates to a kind of transformer bushing, specifically a kind of integral type oil-paper bushing playing insulation and mechanical fixation when electric power system mesohigh draws casing.
Background technology
Current power transformer paper condenser bushing is all made up of conservator 1, upper insulator 3 (air side), flange 4, ground connection cylinder, lower insulator 5 (transformer side), base part seat 6, see accompanying drawing 1, connected successively by brute spring 2 with conducting rod from top to bottom, seal with seal between each element.Sleeve pipe is operationally subject to the impacts such as air pollution, wind, rain, earthquake, add the double action of electric current own and electric field, service conditions is very harsh, once there be insulation fault, generally lower insulator all can be caused to burst, and then causing sleeve pipe to disintegrate, in oil and sleeve pipe, oil leaks simultaneously in transformer, initiation big fire.The fire of loss on fire is caused more than at least 90% to be caused by sleeve pipe in transformer station.
Summary of the invention
In order to overcome traditional oil-paper bushing Problems existing, the object of this invention is to provide a kind of integral type oil-paper bushing of brand new ideas.This sleeve structure is simple, and design cleverly ensures that the oil in sleeve pipe and transformer is completely isolated, and the probability that product breaks down significantly reduces.Even if serious insulation fault appears in product, also can fire for transformer be effectively avoided to burn.Product weight is light, and easy for installation, antidetonation anti-bending strength is good, substantially non-maintaining.
The object of the invention is to be achieved through the following technical solutions:
A kind of integral type oil-paper bushing, it is characterized in that: this sleeve pipe comprises glass fibre reinforced plastic cylinder, conducting rod, expander, mounting flange, base and voltage equalizing ball, the mounting flange being used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder hermetically, and the end shield signal and mounting sleeve mounting flange is provided with for drawing capacitor core gets the through hole of oily device; The outer side injection of glass fibre reinforced plastic cylinder on mounting flange top has silicon rubber umbrella, and outside the glass fibre reinforced plastic cylinder of mounting flange bottom, be coated with semiconductive varnish, this semiconductive varnish is formed and the isodiametric equipotential cylinder of flange; This cylindrical semiconductive varnish bottom forms insulated part in oil; Be arranged on the bottom of glass fibre reinforced plastic cylinder base seal; Conducting rod to be inserted in glass fibre reinforced plastic cylinder and to form entirety with mounting flange, glass fibre reinforced plastic cylinder, base; Expander is arranged on the top of glass fibre reinforced plastic cylinder, and voltage equalizing ball is arranged on the bottom of glass fibre reinforced plastic cylinder.
In the present invention, base by threaded epoxy resin trim ring and sealing ring double sealing, and forms an entirety with after glass fibre reinforced plastic cylinder solidification.Described mounting flange with adopt sealing ring to add epoxy resin cure between glass fibre reinforced plastic cylinder to be connected.
Straight barrel type version is adopted in 145kV and following electric pressure oil; 170kV and above configure voltage equalizing ball for convenience, and adopt cone cylindrical structure form in oil, the afterbody of described glass fibre reinforced plastic cylinder is pyramidal structure, and voltage equalizing ball is arranged on the bottom of pyramidal structure.
The present invention adopts brand-new theory, conservator in conventional high-tension sleeve pipe, upper insulator, mounting flange, ground connection cylinder, a lower insulator complete glass fibre reinforced plastic cylinder are replaced, sleeve pipe is occurred, and the probability of insulation fault reduces greatly, what is more important, even if there is insulation fault the most serious, sleeve pipe also can not cause the oil in transformer to leak, and transformer therefore can not be caused to catch fire.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional oilpaper bushing.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the afterbody of glass fibre reinforced plastic cylinder in the present invention is the structural representation of pyramidal structure.
Fig. 4 is that in the present invention, mounting flange and glass fibre reinforced plastic cylinder are tightly connected schematic diagram.
Fig. 5 applies semiconductive varnish schematic diagram in the present invention below mounting flange.
Fig. 6 is integrated sealing structural representation bottom middle sleeve of the present invention.
Fig. 7 is afterbody voltage equalizing ball mounting structure schematic diagram in the present invention.
Fig. 8 is the head construction schematic diagram with expander in the present invention.
Mark in figure: oily device got by insulator under 1-conservator, 2-spring, the upper insulator of 3-, 4-flange, 5-, 6-base part seat, 7-expander, 8-nut, 9-trim ring, 10-sealing ring, 12-conducting rod, 15-glass fibre reinforced plastic cylinder, 16-silicon rubber umbrella, 17-sleeve pipe, 18-epoxy resin, 19-bottom shielding of bushing measurement mechanism, 20-mounting flange, 21-semiconductive varnish, 22-spell jack panel, 25-base, 27-voltage equalizing ball, 28-terminal block
Embodiment
A kind of 145kV of the present invention and following electric pressure integral type oil-paper bushing, see Fig. 2, this sleeve pipe comprises glass fibre reinforced plastic cylinder 15, conducting rod 12, expander 7, mounting flange 20, base 25 and voltage equalizing ball 27, the mounting flange being used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder hermetically, and the end shield signal and mounting sleeve mounting flange is provided with for drawing capacitor core gets the through hole of oily device; The outer side injection of glass fibre reinforced plastic cylinder on mounting flange top has silicon rubber umbrella 16, and outside the glass fibre reinforced plastic cylinder of mounting flange bottom, be coated with semiconductive varnish 21, this semiconductive varnish is formed and the isodiametric equipotential cylinder of flange; This cylindrical semiconductive varnish bottom forms insulated part in oil; Base 25 is arranged on the bottom of glass fibre reinforced plastic cylinder 15 hermetically; Conducting rod to be inserted in glass fibre reinforced plastic cylinder and to form entirety with mounting flange, glass fibre reinforced plastic cylinder, base; Expander 7 is arranged on the top of glass fibre reinforced plastic cylinder, and voltage equalizing ball 27 is arranged on the bottom of glass fibre reinforced plastic cylinder.
Base by threaded epoxy resin trim ring and sealing ring 10 double sealing, and forms an entirety with after glass fibre reinforced plastic cylinder solidification.Adopt sealing ring to add epoxy resin cure between mounting flange with glass fibre reinforced plastic cylinder to be connected.
The present invention at centre position overcoat mounting flange of glass fibre reinforced plastic cylinder, for same transformer installation and arrange and measure tap and oil sealed sampling device.The two ends of flange are O RunddichtringO and epoxy resin double sealing respectively, and centre has two holes to be used for drawing the end shield signal of capacitor core and mounting sleeve gets oily device, sees accompanying drawing 4.
The top injection silicon rubber umbrella of flange plays the effect of external insulation, and silicon rubber umbrella has hydrophobicity and compares insulator and can greatly improve anti-pollution performance.
Spray one deck semiconductive varnish in flange bottom, formed one with the isodiametric equipotential cylinder of flange, play the ground connection cylinder on sleeve pipe up till now, be convenient to overcoat current transformer, see Fig. 5.
Cylindrical semiconductive varnish bottom is as insulated part in the oil of sleeve pipe, and a mounting seat is arranged at bottom, by threaded epoxy resin and sealing ring double sealing, and forms an entirety with after glass fibre reinforced plastic cylinder solidification, sees Fig. 6.
There is a chuck bottom the guide rod of capacitance of bushing fuse, first conducting rod is tightened together with base by means of this chuck during sleeve pipe assembling.Flange, glass fibre reinforced plastic cylinder, base, conducting rod form the entirety that can not destroy, guarantee that transformer is closed state to outside, no matter flashover even violent earthquake in external flashover, fuse insulation breakdown, oil, transformer and the external world are isolated all the time, therefore also would not have the risk of fire for transformer.
The voltage equalizing ball of afterbody is easy for installation, see Fig. 7, the voltage equalizing ball of the End of High Voltage Bushing plays homogenizing afterbody electric field action, and voltage equalizing ball is connected with afterbody metal-ware by screw thread usually, and what adopt convenient installation in the present invention between voltage equalizing ball and metal-ware clamps syndeton mode.Head, with the structure of expander, ensures that product runs under slight positive pressure state, sees Fig. 8.
Can pyramidal structure be made for 170kV and above sleeve pipe afterbody, be convenient to voltage equalizing ball and arrange, see Fig. 3.
The present invention adopts brand-new theory, conservator, upper insulator, mounting flange, ground connection cylinder, a lower insulator complete glass fibre reinforced plastic cylinder are replaced, sleeve pipe is occurred, and the probability of insulation fault reduces greatly, what is more important, even if there is insulation fault the most serious, sleeve pipe also can not cause the oil in transformer to leak, and transformer therefore can not be caused to catch fire.
Claims (2)
1. an integral type oil-paper bushing, it is characterized in that: this sleeve pipe comprises glass fibre reinforced plastic cylinder (15), conducting rod (12), expander (7), mounting flange (20), base (25) and voltage equalizing ball (27), the mounting flange (20) being used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder (15) hermetically, and the end shield signal and mounting sleeve mounting flange (20) is provided with for drawing capacitor core gets the through hole of oily device; Silicon rubber umbrella (16) is had at glass fibre reinforced plastic cylinder (15) the outer side injection on mounting flange (20) top, glass fibre reinforced plastic cylinder (15) outside in mounting flange (20) bottom is coated with semiconductive varnish (21), and this semiconductive varnish (21) is formed and the isodiametric equipotential cylinder of flange; This semiconductive varnish (21) bottom forms insulated part in oil; Base (25) is arranged on the bottom of glass fibre reinforced plastic cylinder (15) hermetically; Conducting rod (12) to be inserted in glass fibre reinforced plastic cylinder (15) and to form entirety with mounting flange (20), glass fibre reinforced plastic cylinder (15), base (25); Expander (7) is arranged on the top of glass fibre reinforced plastic cylinder (15), and voltage equalizing ball (27) is arranged on the bottom of glass fibre reinforced plastic cylinder (15); Base (25) by threaded epoxy resin trim ring and sealing ring double sealing, and forms an entirety after same glass fibre reinforced plastic cylinder (15) solidification; The afterbody of described glass fibre reinforced plastic cylinder (15) is pyramidal structure, and voltage equalizing ball (27) is arranged on the bottom of pyramidal structure.
2. integral type oil-paper bushing according to claim 1, is characterized in that: adopt sealing ring to add epoxy resin (18) between described mounting flange (20) with glass fibre reinforced plastic cylinder (15) and solidify and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411398.3A CN103456473B (en) | 2013-09-11 | 2013-09-11 | A kind of integral type oil-paper bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310411398.3A CN103456473B (en) | 2013-09-11 | 2013-09-11 | A kind of integral type oil-paper bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103456473A CN103456473A (en) | 2013-12-18 |
| CN103456473B true CN103456473B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310411398.3A Active CN103456473B (en) | 2013-09-11 | 2013-09-11 | A kind of integral type oil-paper bushing |
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| CN (1) | CN103456473B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319034A (en) * | 2014-10-28 | 2015-01-28 | 成都峰达科技有限公司 | Simple composite high-voltage bushing |
| CN105139979A (en) * | 2015-08-11 | 2015-12-09 | 江苏神马电力股份有限公司 | Insulating sleeve and insulating pipe |
| CN105139978A (en) * | 2015-08-11 | 2015-12-09 | 江苏神马电力股份有限公司 | Insulating tube and insulation sleeve with same |
| CN105469957B (en) * | 2015-12-28 | 2018-04-24 | 南京电气高压套管有限公司 | Vacuum glue soaks fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History |
| CN105869859B (en) * | 2016-05-16 | 2017-08-25 | 江苏神马电力股份有限公司 | End structure and the bushing shell for transformer with the end structure |
| CN106782940A (en) * | 2017-01-24 | 2017-05-31 | 江苏智达高压电气有限公司 | A kind of high-voltage direct-current sleeve of electric resistance partial pressure |
| CN109859943A (en) * | 2019-03-29 | 2019-06-07 | 江苏神马电力股份有限公司 | A kind of sheath assembly and bushing shell for transformer being homogenized electric field |
| CN111896853A (en) * | 2020-08-13 | 2020-11-06 | 搏世因(江苏)高压电气有限公司 | Oil gas casing pipe test tool |
| CN112908580A (en) * | 2021-01-13 | 2021-06-04 | 安徽智达电气科技有限公司 | High-voltage bushing capable of tolerating ultra-low temperature and ultra-high temperature |
| CN112908582A (en) * | 2021-01-28 | 2021-06-04 | 西安交通大学 | High-pressure dry type valve side sleeve |
| CN113588998A (en) * | 2021-08-26 | 2021-11-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A pressure-equalizing ball mounting structure and sleeve pipe test device for sleeve pipe test device |
Citations (7)
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|---|---|---|---|---|
| GB426530A (en) * | 1933-06-20 | 1935-04-04 | Haefely & Cie Ag Emil | Improvements relating to high tension electric insulating bushings of the condenser type |
| CN2809821Y (en) * | 2005-05-27 | 2006-08-23 | 南京智达电气有限公司 | Cable-through type pure-ceramic sleeve for partial discharge free transformer |
| CN201402952Y (en) * | 2009-04-03 | 2010-02-10 | 褚斌 | Dry-type high-voltage bushing |
| CN101714446A (en) * | 2009-09-10 | 2010-05-26 | 北京天威瑞恒高压套管有限公司 | Glass fibre reinforced plastic capacitance multicore transformer bushing |
| CN201689761U (en) * | 2010-05-17 | 2010-12-29 | 江苏思源赫兹互感器有限公司 | Capacitance type transformer sleeve |
| CN202564045U (en) * | 2012-03-17 | 2012-11-28 | 安徽互感器有限公司 | Outdoor dry-type high-tension electricity current transducer |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS601723B2 (en) * | 1979-06-28 | 1985-01-17 | 三菱電機株式会社 | butsing |
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2013
- 2013-09-11 CN CN201310411398.3A patent/CN103456473B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB426530A (en) * | 1933-06-20 | 1935-04-04 | Haefely & Cie Ag Emil | Improvements relating to high tension electric insulating bushings of the condenser type |
| CN2809821Y (en) * | 2005-05-27 | 2006-08-23 | 南京智达电气有限公司 | Cable-through type pure-ceramic sleeve for partial discharge free transformer |
| CN201402952Y (en) * | 2009-04-03 | 2010-02-10 | 褚斌 | Dry-type high-voltage bushing |
| CN101714446A (en) * | 2009-09-10 | 2010-05-26 | 北京天威瑞恒高压套管有限公司 | Glass fibre reinforced plastic capacitance multicore transformer bushing |
| CN201689761U (en) * | 2010-05-17 | 2010-12-29 | 江苏思源赫兹互感器有限公司 | Capacitance type transformer sleeve |
| CN202564045U (en) * | 2012-03-17 | 2012-11-28 | 安徽互感器有限公司 | Outdoor dry-type high-tension electricity current transducer |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103456473A (en) | 2013-12-18 |
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