CN203503442U - Integral-type oil-impregnated paper high-voltage bushing - Google Patents
Integral-type oil-impregnated paper high-voltage bushing Download PDFInfo
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- CN203503442U CN203503442U CN201320562019.6U CN201320562019U CN203503442U CN 203503442 U CN203503442 U CN 203503442U CN 201320562019 U CN201320562019 U CN 201320562019U CN 203503442 U CN203503442 U CN 203503442U
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- reinforced plastic
- glass fibre
- fibre reinforced
- plastic cylinder
- mounting flange
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses an integral-type oil-impregnated paper high-voltage bushing. The integral-type oil-impregnated paper high-voltage bushing includes a glass steel cylinder, a conducting rod, an expander, an installation flange, a pedestal and a voltage-sharing ball. The installation flange used for being connected to a transformer is sleeved on the middle position of the glass steel cylinder in a sealed manner. A silicone rubber umbrella cover is arranged on the outer side of the glass steel cylinder on the upper part of the installation flange. Semiconducting paint is sprayed on the outer side of the glass steel cylinder on the lower part of the installation flange. An equipotential cylinder is formed by the semiconducting paint and the diameter of the equipotential cylinder is equal to that of the flange. The pedestal is arranged on the bottom part of the glass steel cylinder in a sealing manner. The conducting rod is inserted into the glass steel cylinder and forms an integral body together with the installation flange, the glass steel cylinder and the pedestal. The expander is arranged on the top part of the glass steel cylinder. The voltage-sharing ball is arranged on the bottom part of the glass steel cylinder. The integral-type oil-impregnated paper high-voltage bushing provided by the utility model is simple in structure. Oil in the bushing is in completely isolation with oil in the transformer. Probabilities of product failure are reduced substantially and the transformer can be prevented from burning effectively. The integral-type oil-impregnated paper high-voltage bushing is low in weight, convenient to install, good in anti-vibration and anti-bending performance and generally free in maintenance.
Description
Technical field
The utility model relates to a kind of transformer bushing, specifically a kind of integral type oil-paper bushing that plays insulation and mechanical fixation when electric power system mesohigh is drawn casing.
Background technology
At present power transformer with paper condenser bushing all by conservator 1, upper insulator 3(air side), flange 4, ground connection cylinder, lower insulator 5(transformer side), base part seat 6 forms, see accompanying drawing 1, with conducting rod, by brute spring 2, connect successively from top to bottom, between each element, with seal, seal.Sleeve pipe is subject to the impacts such as air pollution, wind, rain, earthquake when operation, add the double action of electric current own and electric field, service conditions is very harsh, once there be insulation fault, generally all can cause lower insulator to burst, and then causing sleeve pipe to disintegrate, in transformer, in oil and sleeve pipe, oil leaks simultaneously, causes big fire.In transformer station, cause the fire of loss on fire more than at least 90% by sleeve pipe, to be caused.
Summary of the invention
The problem existing in order to overcome traditional oil-paper bushing, the purpose of this utility model is to provide a kind of integral type oil-paper bushing of brand new ideas.This sleeve structure is simple, and design cleverly guarantees 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 effectively avoid fire for transformer burning.Product weight is light, easy for installation, and antidetonation anti-bending strength is good, substantially non-maintaining.
The purpose of this utility model is 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 that is used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder hermetically, is provided with for drawing the end shield signal of capacitor core and the through hole that mounting sleeve is got oily device on mounting flange; Outside the glass fibre reinforced plastic cylinder on mounting flange top, side injection has silicon rubber umbrella, in the glass fibre reinforced plastic cylinder outside of mounting flange bottom, is coated with semiconductive varnish, and this semiconductive varnish forms and the isodiametric equipotential cylinder of flange; This semiconductive varnish bottom forms insulated part in oil; Be arranged on the bottom of glass fibre reinforced plastic cylinder base seal; Conducting rod is inserted in glass fibre reinforced plastic cylinder and forms integral body 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 utility model, base is by threaded epoxy resin trim ring and sealing ring double sealing, and an integral body of formation after solidifying with glass fibre reinforced plastic cylinder.Between described mounting flange and glass fibre reinforced plastic cylinder, adopting sealing ring to add epoxy resin cure is connected.
In 145kV and following electric pressure oil, adopt straight barrel type version; 170kV and above configure voltage equalizing ball for convenience, adopt cone cylindrical structure form in oil, and 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 utility model adopts brand-new theory, conservator in conventional high-tension sleeve pipe, upper insulator, mounting flange, ground connection cylinder, lower insulator are replaced with a complete glass fibre reinforced plastic cylinder, make sleeve pipe occur that the probability of insulation fault reduces greatly, what is more important, even if there is the most serious insulation fault, sleeve pipe can not cause the oil in transformer to leak yet, and therefore can not cause transformer to catch fire.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional oilpaper bushing.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation that the afterbody of glass fibre reinforced plastic cylinder in the utility model is pyramidal structure.
Fig. 4 is mounting flange and the glass fibre reinforced plastic cylinder schematic diagram that is tightly connected in the utility model.
Fig. 5 is that in the utility model, mounting flange applies semiconductive varnish schematic diagram below.
Fig. 6 is the utility model middle sleeve bottom integrated sealing structural representation.
Fig. 7 is afterbody voltage equalizing ball mounting structure schematic diagram in the utility model.
Fig. 8 is with the head construction schematic diagram of expander in the utility model.
Mark in figure: under 1-conservator, 2-spring, the upper insulator of 3-, 4-flange, 5-, insulator, 6-base part seat, 7-expander, 8-nut, 9-trim ring, 10-sealing ring, 12-conducting rod, 15-epoxy glass fiber reinforced plastic cylinder, 16-silicon rubber umbrella, 17-sleeve pipe are got oily device, 18-epoxy resin, 19-bottom shielding of bushing measurement mechanism, 20-mounting flange, 21-semiconductive varnish, 22-spelling jack panel, 23-epoxy resin trim ring, 25-base, 27-voltage equalizing ball, 28-terminal block.
Embodiment
A kind of 145kV described in the utility model 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 that is used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder hermetically, is provided with for drawing the end shield signal of capacitor core and the through hole that mounting sleeve is got oily device on mounting flange; Outside the glass fibre reinforced plastic cylinder on mounting flange top, side injection has silicon rubber umbrella 16, in the glass fibre reinforced plastic cylinder outside of mounting flange bottom, is coated with semiconductive varnish 21, and this semiconductive varnish forms and the isodiametric equipotential cylinder of flange; This 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 is inserted in glass fibre reinforced plastic cylinder and forms integral body 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 is by threaded epoxy resin trim ring 23 and sealing ring 10 double sealings, and an integral body of formation after solidifying with glass fibre reinforced plastic cylinder.Between mounting flange and glass fibre reinforced plastic cylinder, adopting sealing ring to add epoxy resin cure is connected.
The utility model, at mounting flange of the centre position of glass fibre reinforced plastic cylinder overcoat, is measured tap and oil sealed sampling device for installation and the layout of same transformer.The two ends of flange are O RunddichtringO and epoxy resin double sealing respectively, and end shield signal and mounting sleeve that centre has two holes to be used for drawing capacitor core are got oily device, see 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.
At flange bottom spraying one deck semiconductive varnish, forms one and 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 integral body after solidifying with glass fibre reinforced plastic cylinder, sees Fig. 6.
A Ka Tai is arranged at the guide rod bottom of capacitance of bushing fuse, during sleeve pipe assembling, by means of this Ka Tai, first conducting rod is tightened together with base.Flange, glass fibre reinforced plastic cylinder, base, conducting rod form the integral body that can not destroy, guarantee that transformer is closed state to outside, flashover violent earthquake even in external flashover, fuse insulation breakdown, oil no matter, transformer completely cuts off all the time with extraneous, does not therefore also just have the risk of fire for transformer.
The voltage equalizing ball of afterbody is easy for installation, see Fig. 7, the End of High Voltage Bushing people's voltage equalizing ball plays homogenizing afterbody electric field action, and voltage equalizing ball is connected with afterbody metal-ware by screw thread conventionally, adopts the convenient syndeton mode that clamps of installing in the present invention between voltage equalizing ball and metal-ware.Head, with the structure of expander, guarantees that product moves under slight positive pressure state, sees Fig. 8.
For 170kV and above sleeve pipe afterbody, can make pyramidal structure, be convenient to voltage equalizing ball and arrange, see Fig. 3.
The utility model adopts brand-new theory, conservator, upper insulator, mounting flange, ground connection cylinder, lower insulator are replaced with a complete glass fibre reinforced plastic cylinder, make sleeve pipe occur that the probability of insulation fault reduces greatly, what is more important, even if there is the most serious insulation fault, sleeve pipe can not cause the oil in transformer to leak yet, and therefore can not cause transformer to catch fire.
Claims (4)
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) that is used for being connected with transformer is sleeved on the centre position of glass fibre reinforced plastic cylinder (15) hermetically, is provided with for drawing the end shield signal of capacitor core and the through hole that mounting sleeve is got oily device on mounting flange (20); Outside the glass fibre reinforced plastic cylinder (15) on mounting flange (20) top, side injection has silicon rubber umbrella (16), glass fibre reinforced plastic cylinder (15) outside in mounting flange (20) bottom is coated with semiconductive varnish (21), and this semiconductive varnish (21) forms 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) is inserted in glass fibre reinforced plastic cylinder (15) and forms whole 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).
2. integral type oil-paper bushing according to claim 1, is characterized in that: base (25) is by threaded epoxy resin trim ring (23) and sealing ring (24) double sealing, and same glass fibre reinforced plastic cylinder (15) solidifies the rear integral body that forms.
3. integral type oil-paper bushing according to claim 1, is characterized in that: 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.
4. integral type oil-paper bushing according to claim 1, is characterized in that: between described mounting flange (20) and glass fibre reinforced plastic cylinder (15), adopt sealing ring (24) to add epoxy resin (18) and solidify and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562019.6U CN203503442U (en) | 2013-09-11 | 2013-09-11 | Integral-type oil-impregnated paper high-voltage bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320562019.6U CN203503442U (en) | 2013-09-11 | 2013-09-11 | Integral-type oil-impregnated paper high-voltage bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203503442U true CN203503442U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320562019.6U Expired - Fee Related CN203503442U (en) | 2013-09-11 | 2013-09-11 | Integral-type oil-impregnated paper high-voltage bushing |
Country Status (1)
| Country | Link |
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| CN (1) | CN203503442U (en) |
Cited By (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 |
| 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 |
| CN107508224A (en) * | 2016-06-14 | 2017-12-22 | 沈阳和新套管有限公司 | The core body mucilage binding structure and method at gas-insulated end in a kind of direct-current wall bushing |
| 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 |
| PL126786U1 (en) * | 2017-11-14 | 2019-05-20 | Fabryka Urzadzen Kolejowych Spolka Z Ograniczona Odpowiedzialnoscia | Traction pull insulator |
-
2013
- 2013-09-11 CN CN201320562019.6U patent/CN203503442U/en not_active Expired - Fee Related
Cited By (7)
| 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 |
| CN103456473B (en) * | 2013-09-11 | 2016-01-20 | 江苏智达高压电气有限公司 | A kind of integral type oil-paper bushing |
| CN107508224A (en) * | 2016-06-14 | 2017-12-22 | 沈阳和新套管有限公司 | The core body mucilage binding structure and method at gas-insulated end in a kind of direct-current wall bushing |
| CN107508224B (en) * | 2016-06-14 | 2023-10-20 | 沈阳和新套管有限公司 | Core body gluing structure and method for gas insulation end in direct-current wall bushing |
| 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 |
| PL126786U1 (en) * | 2017-11-14 | 2019-05-20 | Fabryka Urzadzen Kolejowych Spolka Z Ograniczona Odpowiedzialnoscia | Traction pull insulator |
| 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20140326 Termination date: 20180911 |