CN114242419A - An oil-immersed transformer insulating bushing - Google Patents
An oil-immersed transformer insulating bushing Download PDFInfo
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- CN114242419A CN114242419A CN202111537874.7A CN202111537874A CN114242419A CN 114242419 A CN114242419 A CN 114242419A CN 202111537874 A CN202111537874 A CN 202111537874A CN 114242419 A CN114242419 A CN 114242419A
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- insulating bushing
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- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims description 42
- 238000009413 insulation Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 claims 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 14
- 239000000428 dust Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 210000002435 tendon Anatomy 0.000 abstract 1
- 238000004321 preservation Methods 0.000 description 19
- 239000012634 fragment Substances 0.000 description 13
- 230000007613 environmental effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009950 felting Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Insulators (AREA)
Abstract
本发明公开了一种油浸式变压器绝缘套管，属于变压器绝缘套管设备技术领域，变压器运行时的热量，可使受热球受热膨胀并顶动双向弹片，在力的作用下，双向弹片可迅速变为向上凸起状态，从而带走双向弹片上部分的污秽和灰尘，且由于双向弹片向上凸起时，可使连接绝缘盘内部产生负压，使得移动塞下降并拉动导力拉绳，利用多个弹力筋对双向弹片上附着的泥灰进行疏松，方便下次被双向弹片带走，进一步加强了清洁效果，当变压器温度下降时，利用导力拉绳触发投放盒，使投放外壳内部的吸附干燥球掉落至双向弹片上，吸附干燥球能够吸收其周围的水分子，达到一个防潮作用，且当受热球再次膨胀时，吸附干燥球会跟随灰尘一同被带走。
The invention discloses an oil-immersed transformer insulating bushing, which belongs to the technical field of transformer insulating bushing equipment. The heat during the operation of the transformer can cause the heated ball to expand and push the bidirectional shrapnel. Under the action of the force, the bidirectional shrapnel can be It quickly becomes an upwardly convex state, thereby taking away the dirt and dust on the upper part of the two-way shrapnel. When the two-way shrapnel is raised upwards, a negative pressure can be generated inside the connecting insulating disc, so that the moving plug is lowered and the guiding force rope is pulled. Multiple elastic tendons are used to loosen the mud ash attached to the two-way shrapnel, which is convenient for being taken away by the two-way shrapnel next time, which further enhances the cleaning effect. The adsorption drying ball falls on the two-way shrapnel. The adsorption drying ball can absorb the surrounding water molecules to achieve a moisture-proof effect, and when the heated ball expands again, the adsorption drying ball will be taken away along with the dust.
Description
Technical Field
The invention relates to the technical field of transformer insulating sleeve equipment, in particular to an oil-immersed transformer insulating sleeve.
Background
The distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and reduces 10kV or 35kV network voltage to 230/400V bus voltage used by users. The product is suitable for AC 50Hz, three-phase maximum rated capacity is 2500kVA, the product can be used indoors and outdoors, the product can be arranged on a pole when the capacity is 315kVA or below, the environmental temperature is not higher than 40 ℃, not lower than-25 ℃, the maximum daily average temperature is 30 ℃, the maximum annual average temperature is 20 ℃, and the relative humidity is not more than 90% (the environmental temperature is 25 ℃).
The transformer bushing is a main insulation device outside the transformer box, and the outgoing lines of the transformer winding must penetrate through the insulation bushing to insulate the outgoing lines and the outgoing lines from the transformer shell, and meanwhile, the transformer bushing plays a role in fixing the outgoing lines.
The transformer bushing often has a pollution flashover phenomenon in the use process, after flashover occurs, the voltage between electrodes rapidly drops to zero or approaches to zero, and sparks or electric arcs in a flashover channel cause local overheating of an insulating surface to cause carbonization, so that surface insulating parts can be damaged, the insulating capability is reduced, particularly, insulators or insulating bushings of high-voltage power transmission and transformation equipment such as dirt, environmental dust and the like are stained with the pollution, when the insulator or the insulating bushings are affected with damp, the flashover voltage is remarkably reduced, and even flashover is carried out under the working voltage of the electrical equipment, so that serious accidents are caused.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an oil-immersed transformer insulating sleeve, compared with the existing transformer sleeve, the design of the oil-immersed transformer insulating sleeve has the advantages that the transformer sleeve stained with industrial dirt and environmental dust is automatically cleaned, the pollution flashover phenomenon of the transformer sleeve is reduced, meanwhile, the cleaning frequency of technicians on the transformer sleeve is reduced, and the moisture-proof capability of the transformer sleeve is obviously improved by arranging a ball separating plate on the basis.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An insulating sleeve of an oil-immersed transformer is characterized in that an insulating disc is connected through improvement on the basis of the insulating sleeve of the transformer in the prior art, the insulating disc comprises a plurality of square partition plates fixedly connected inside the insulating disc, a bidirectional elastic sheet is arranged between the square partition plates, a connecting sealing film is fixedly connected between the bidirectional elastic sheet and two square partition plates, a plurality of partition plates which are uniformly distributed are fixedly connected inside a circular insulating cylinder, an oil storage driving cavity is arranged between every two partition plates, through holes are drilled on the lower side walls of the oil storage driving cavities, a moving plug is slidably connected on the oil storage driving cavities, a force guide pull rope is fixedly connected on the side wall of the moving plug, insulating oil is filled inside the circular insulating cylinder and the connecting insulating disc, and boxes are arranged on one side of the oil storage driving cavities of the circular insulating cylinder, the force guide pull rope penetrates through the putting box and is fixedly connected with an elastic rib, the elastic rib is fixedly connected with the connecting insulating disc, a plurality of uniformly distributed cleaning branch ropes are arranged on the bidirectional elastic sheet, two ends of each cleaning branch rope are fixedly connected with the connecting sealing film, and the force guide pull rope is fixedly connected with the plurality of cleaning branch ropes; the temperature generated during the operation of the transformer enables the existing transformer insulating sleeve to have the capability of automatically cleaning dirt and dust, reduces the pollution flashover phenomenon of the transformer sleeve and simultaneously reduces the cleaning frequency of technical personnel to the transformer sleeve.
Further, lateral wall fixedly connected with heat preservation circle box under the insulation support body, and heat preservation circle box and insulation support body fixed connection, heat preservation circle box downside inner wall fixedly connected with heated ball, heated ball upper end is provided with erects the ejector pin, erect ejector pin through connection insulating disc and two-way shell fragment fixed connection, can push up two-way shell fragment through the inflation action that receives the heated ball for two-way shell fragment takes place to deform.
Further, be heated ball upper end fixedly connected with top force crust, and the top force crust with erect ejector pin fixed connection, be fixedly connected with heat conduction rod on the heated ball lateral wall, run through the setting of insulating sleeve body, can reach the stability when being heated the ball inflation, avoid being heated the ball because of ambient temperature has influenced the thermal expansion, the top force crust can effectively improve the stability when being heated the ball inflation top and move, takes place deformation when avoiding the top to move.
Further, it is a plurality of two stoppers of the equal fixedly connected with of two-way shell fragment upper wall, and lead the power stay cord and run through two stopper settings, can carry on spacingly to leading the power stay cord, avoid leading the power stay cord can't make a plurality of elastic muscle and two-way shell fragment contact when being promoted.
Further, put in the box including putting in the shell, put in shell upside inner wall fixedly connected with and separate the bulb board, it has a plurality of storage balloons to put in inside being located to separate bulb board left side packing of shell, separate bulb board right side sliding connection has the movable plate, lateral wall fixedly connected with handstand felting needle under the movable plate, lead power stay cord and movable plate fixed connection, can collect a plurality of storage balloons to guarantee only to fall one when being triggered and adsorb dry ball.
Furthermore, the lower end of the throwing shell is obliquely arranged, a ball throwing hole is formed in the lower side wall of the throwing shell, and when the transformer operates next time, the adsorption drying ball falls above the ball throwing hole through gravity to be punctured next time.
Furthermore, the storage balloon comprises an elastic storage film, the adsorption drying ball is filled in the elastic storage film, and compressed gas is filled in the elastic storage film, so that the elastic storage film can explode when being punctured, the blocking of the ball throwing hole by fragments of the elastic storage film is avoided, and the adsorption drying ball cannot fall onto the bidirectional elastic piece.
Furthermore, the heat preservation circle box is filled with the heat preservation cotton inside, avoids the heat preservation circle box to lead to its difficult stable emergence thermal expansion effect because of ambient temperature's influence.
Furthermore, put in the shell and make for smooth insulating material with circular insulating cylinder, can effectively reduce the power of leading stay cord and put in the frictional force between shell and the circular insulating cylinder, avoid leading the power stay cord to take place wearing and tearing and fracture when last time uses.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that
(1) This scheme can clear up the transformer bushing who is stained with industry filthy and environment dust automatically, reduces transformer bushing's pollution flashover phenomenon, has also reduced simultaneously technical staff to transformer bushing's clean frequency to set up ball baffle on this basis, showing and improving transformer bushing's dampproofing ability.
(2) Lateral wall fixedly connected with heat preservation circle box under the insulation support body, and heat preservation circle box and insulation support body fixed connection, heat preservation circle box downside inner wall fixedly connected with heated ball, the heated ball upper end is provided with erects the ejector pin, erects ejector pin through connection insulating disc and two-way shell fragment fixed connection, can push up two-way shell fragment through the inflation action that receives the heated ball for two-way shell fragment takes place to deform.
(3) Being heated ball upper end fixedly connected with top force crust, and the top force crust with erect ejector pin fixed connection, fixedly connected with heat conduction stick on the heated ball lateral wall runs through the insulating tube body setting, can reach the stability when being heated the ball inflation, avoids being heated the ball and has influenced the thermal expansion because of ambient temperature, and the top force crust can effectively improve the stability when being heated the ball inflation top and move, takes place deformation when avoiding the top to move.
(4) Two stoppers of the equal fixedly connected with of lateral wall on a plurality of two-way shell fragment, and lead the power stay cord and run through two stopper settings, can carry on spacingly to leading the power stay cord, avoid leading the power stay cord can't make a plurality of elastic muscle and two-way shell fragment contact when being promoted.
(5) Put in the box including putting in the shell, put in shell upside inner wall fixedly connected with and separate the ball board, put in that the shell is inside to be located to separate that ball board left side packing has a plurality of storage balloons, separates ball board right side sliding connection and has the movable plate, and lateral wall fixedly connected with handstand felting needle leads power stay cord and movable plate fixed connection under the movable plate, can collect a plurality of storage balloons to guarantee only one absorption drying ball that falls when being triggered.
(6) The lower end of the throwing shell is obliquely arranged, a ball throwing hole is formed in the lower side wall of the throwing shell, and when the transformer operates next time, the adsorption drying balls fall above the ball throwing hole through gravity to be punctured next time.
(7) The storage balloon comprises an elastic storage film, the adsorption drying ball is filled in the elastic storage film, compressed gas is filled in the elastic storage film, the elastic storage film can explode when being punctured, the blocking of fragments of the elastic storage film to a ball throwing hole is avoided, and the adsorption drying ball cannot fall onto the bidirectional elastic piece.
(8) The heat preservation circle box is inside to be filled with the heat preservation cotton, avoids the heat preservation circle box to lead to its emergence thermal expansion effect that is difficult to stabilize because of ambient temperature's influence.
(9) Put in the shell and make for smooth insulating material with circular insulating cylinder, can effectively reduce and lead the power stay cord and put in the frictional force between shell and the circular insulating cylinder, lead the power stay cord and take place wearing and tearing and fracture when avoiding last time use.
Drawings
FIG. 1 is an external view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a schematic structural view of a portion of the circular insulating cylinder connecting the insulating disk according to the present invention;
FIG. 4 is a top cross-sectional view of the circular insulating cylinder of the present invention;
FIG. 5 is a top view of the insulating disk of the present invention;
FIG. 6 is an enlarged view at B in FIG. 2;
FIG. 7 is an enlarged view taken at A in FIG. 2;
figure 8 is a schematic view of the structure at the location of the storage balloon of the present invention.
The reference numbers in the figures illustrate:
1 insulating sleeve body, 2 connecting insulating disc, 3 round insulating cylinder, 31 oil storage driving cavity, 32 through holes, 33 moving plug, 34 insulating oil, 4 square clapboard, 5 two-way elastic sheet, 51 limiting block, 6 connecting sealing film, 7 force guiding pull rope, 71 elastic rib, 8 throwing box, 81 throwing shell, 82 ball separating plate, 83 storage balloon, 831 elastic storage film, 832 adsorption drying ball, 84 ball throwing hole, 85 moving plate, 86 inverted pricker, 9 cleaning branch rope, 10 heat preservation round box, 11 heated ball, 111 top force hard shell, 112 heat conducting rod, 12 vertical ejector rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-6, an insulating sleeve for an oil-immersed transformer comprises an insulating sleeve body 1, a plurality of connecting insulating discs 2 are fixedly connected to the insulating sleeve body 1, a circular insulating cylinder 3 is fixedly connected to each connecting insulating disc 2 of the insulating sleeve body 1, a plurality of uniformly distributed square partition plates 4 are fixedly connected to the inside of each connecting insulating disc 2, a two-way elastic sheet 5 is arranged between each square partition plate 4, a connecting sealing film 6 is fixedly connected between each two-way elastic sheet 5 and each two square partition plates 4, a plurality of uniformly distributed partition plates are fixedly connected to the inside of each circular insulating cylinder 3, an oil storage driving cavity 31 is arranged between each two partition plates, through holes 32 are drilled on the lower side walls of the oil storage driving cavities 31, a moving plug 33 is slidably connected to each oil storage driving cavity 31, a force guiding pull rope 7 is fixedly connected to the upper side wall of the moving plug 33, insulating cylinders 3 and the connecting insulating discs 2 are filled with insulating oil 34, circular insulating cylinder 3 is located a plurality of oil storage drive chamber 31 one sides and all installs input box 8, be provided with a plurality of evenly distributed's branch rope 9 that cleans on two-way shell fragment 5, clean 9 both ends of branch rope and connect and seal 6 fixed connection of membrane, and lead power stay cord 7 and a plurality of branch rope 9 fixed connection that cleans, lateral wall fixedly connected with heat preservation circle box 10 under the insulation support body 1, and heat preservation circle box 10 and insulation support body 1 fixed connection, heat preservation circle box 10 downside inner wall fixedly connected with receives hot ball 11, the inside packing of heat preservation circle box 10 has the heat preservation cotton, avoid heat preservation circle box 10 to lead to its emergence thermal expansion effect that is difficult to stabilize because of ambient temperature's influence. The upper end of a heated ball 11 is provided with a vertical mandril 12, the vertical mandril 12 is fixedly connected with an insulating disc 2 and a two-way elastic sheet 5 in a penetrating way, the upper end of the heated ball 11 is fixedly connected with a jacking hard shell 111, the jacking hard shell 111 is fixedly connected with the vertical mandril 12, the side wall of the heated ball 11 is fixedly connected with a heat conducting rod 112, 122 is arranged by penetrating through an insulating sleeve body 1, a transformer generates a large amount of heat in the operation process, the heat can be guided to the heated ball 11 through the heat conducting rod 112, the heated ball 11 is heated and expanded, the jacking hard shell 111 and the vertical mandril 12 are utilized to jack the two-way elastic sheet 5, the two-way elastic sheet 5 is rapidly upspring, the loose industrial filth and the environmental dust on the two-way elastic sheet 5 are taken away, and when the two-way elastic sheet 5 upsprings, the inside of the insulating disc 2 generates negative pressure, so that the insulating oil 34 in the round insulating cylinder 3 is sucked into the connecting insulating disc 2, and make the removal stopper 33 descend and draw and lead power stay cord 7, put in shell 81 and round insulation cylinder 3 and be smooth insulating material and make, can effectively reduce lead power stay cord 7 and put in the frictional force between shell 81 and the round insulation cylinder 3, lead power stay cord 7 when avoiding last time to use and take place wearing and tearing and fracture.
Referring to fig. 5-7, the force-guiding rope 7 is fixedly connected with an elastic rib 71 through the throwing box 8, the elastic rib 71 is fixedly connected with the connecting insulating disc 2, the upper side walls of the bidirectional elastic sheets 5 are fixedly connected with two limiting blocks 51, the force-guiding pull rope 7 penetrates through the two limiting blocks 51, the force-guiding pull rope 7 plays a role in loosening mud and dirt attached to the bidirectional elastic sheet 5 by pulling the elastic ribs 71, so that the bidirectional elastic sheet 5 can be conveniently bounced away next time, when the temperature of the transformer drops, the bidirectional elastic sheet 5 is pulled by the recovery deformation of the heated ball 11, so that the bidirectional elastic sheet 5 is bounced downwards, at the moment, the insulating oil 34 connected with the inner part of the insulating disc 2 is squeezed into the circular insulating cylinder 3, the movable plug 33 is lifted, and the force guiding pull rope 7 is pulled by the pulling force generated when the elastic rib 71 restores the deformation and the friction force generated by the limiting block 51 on the force guiding pull rope 7 when the bidirectional elastic sheet 5 bounces downwards, so that the force guiding pull rope 7 triggers the throwing box 8.
Referring to fig. 3-8, the feeding box 8 includes a feeding housing 81, a ball separating plate 82 is fixedly connected to an inner wall of an upper side of the feeding housing 81, a plurality of storage balloons 83 are filled in the feeding housing 81 at a left side of the ball separating plate 82, a moving plate 85 is slidably connected to a right side of the ball separating plate 82, an inverted spike 86 is fixedly connected to a lower side wall of the moving plate 85, a force guiding rope 7 is fixedly connected to the moving plate 85, a lower end of the feeding housing 81 is disposed in an inclined manner, a ball feeding hole 84 is drilled in the lower side wall of the feeding housing 81, the storage balloons 83 include an elastic storage film 831, an adsorption drying ball 832 is filled in the elastic storage film 831, a compressed gas is filled in the elastic storage film 831, when the force guiding rope 7 is pulled, the moving plate 85 descends along with the force guiding rope 7, and punctures the circular insulating cylinder 3 by the inverted spike 86, so that the adsorption drying ball 832 in the spike 86 falls onto the bidirectional elastic piece 5, the adsorption drying ball 832 can absorb surrounding water molecules to play a certain moisture-proof role, the adsorption drying ball 832 and dust can be taken away together through the two-way elastic sheet 5 when the transformer operates next time, the influence of original water drops generated by temperature drop of hot air on the insulation performance of the sleeve is avoided when the temperature of the sleeve of the transformer is reduced, and the adsorption drying ball 832 falls above the ball injection hole 84 through gravity when the transformer operates next time in preparation for being punctured next time.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537874.7A CN114242419B (en) | 2021-12-15 | 2021-12-15 | An oil-immersed transformer insulating bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537874.7A CN114242419B (en) | 2021-12-15 | 2021-12-15 | An oil-immersed transformer insulating bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242419A true CN114242419A (en) | 2022-03-25 |
| CN114242419B CN114242419B (en) | 2024-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111537874.7A Active CN114242419B (en) | 2021-12-15 | 2021-12-15 | An oil-immersed transformer insulating bushing |
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| Country | Link |
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| CN (1) | CN114242419B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117457344A (en) * | 2023-12-22 | 2024-01-26 | 搏世因（北京）高压电气有限公司 | Sealed radiating dry-type capacitance type transformer sleeve |
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|---|---|---|---|---|
| JPS6119107A (en) * | 1984-07-06 | 1986-01-28 | Mitsubishi Electric Corp | Welding method for oil-immersed transformer |
| CN201466655U (en) * | 2009-07-17 | 2010-05-12 | 保定合力达应用化学有限公司 | Thermal shrinkage cable terminal |
| CN202196624U (en) * | 2011-07-12 | 2012-04-18 | 河南爱迪德电力设备有限责任公司 | Mutual inductor support column |
| CN105405591A (en) * | 2015-11-27 | 2016-03-16 | 扬州国瑞新能源科技有限公司 | Oil-immersed power transformer |
| CN205666130U (en) * | 2016-06-04 | 2016-10-26 | 湖南太阳电力电瓷电器制造有限公司 | Transformer insulation support |
| CN109219860A (en) * | 2016-05-19 | 2019-01-15 | 启明电气工业株式会社 | Bushings for transformers |
| CN111462999A (en) * | 2020-03-24 | 2020-07-28 | 南京智达电气设备有限公司 | Fully-sealed oilpaper capacitive transformer bushing |
| CN112992478A (en) * | 2021-02-24 | 2021-06-18 | 沙颖婕 | Sleeve pipe antifouling structure for oil-immersed transformer |
| CN113299456A (en) * | 2021-04-09 | 2021-08-24 | 熊怀双 | Water-pollution-removing type transformer bushing |
| CN113345685A (en) * | 2021-06-07 | 2021-09-03 | 江苏中盟电气设备有限公司 | Self-expansion type high-heat-dissipation oil-immersed transformer |
-
2021
- 2021-12-15 CN CN202111537874.7A patent/CN114242419B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119107A (en) * | 1984-07-06 | 1986-01-28 | Mitsubishi Electric Corp | Welding method for oil-immersed transformer |
| CN201466655U (en) * | 2009-07-17 | 2010-05-12 | 保定合力达应用化学有限公司 | Thermal shrinkage cable terminal |
| CN202196624U (en) * | 2011-07-12 | 2012-04-18 | 河南爱迪德电力设备有限责任公司 | Mutual inductor support column |
| CN105405591A (en) * | 2015-11-27 | 2016-03-16 | 扬州国瑞新能源科技有限公司 | Oil-immersed power transformer |
| CN109219860A (en) * | 2016-05-19 | 2019-01-15 | 启明电气工业株式会社 | Bushings for transformers |
| CN205666130U (en) * | 2016-06-04 | 2016-10-26 | 湖南太阳电力电瓷电器制造有限公司 | Transformer insulation support |
| CN111462999A (en) * | 2020-03-24 | 2020-07-28 | 南京智达电气设备有限公司 | Fully-sealed oilpaper capacitive transformer bushing |
| CN112992478A (en) * | 2021-02-24 | 2021-06-18 | 沙颖婕 | Sleeve pipe antifouling structure for oil-immersed transformer |
| CN113299456A (en) * | 2021-04-09 | 2021-08-24 | 熊怀双 | Water-pollution-removing type transformer bushing |
| CN113345685A (en) * | 2021-06-07 | 2021-09-03 | 江苏中盟电气设备有限公司 | Self-expansion type high-heat-dissipation oil-immersed transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117457344A (en) * | 2023-12-22 | 2024-01-26 | 搏世因（北京）高压电气有限公司 | Sealed radiating dry-type capacitance type transformer sleeve |
| CN117457344B (en) * | 2023-12-22 | 2024-03-08 | 搏世因（北京）高压电气有限公司 | Sealed radiating dry-type capacitance type transformer sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114242419B (en) | 2024-11-15 |
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