CN102412053B - Capacitive transformer bushing - Google Patents
Capacitive transformer bushing Download PDFInfo
- Publication number
- CN102412053B CN102412053B CN201010291878.7A CN201010291878A CN102412053B CN 102412053 B CN102412053 B CN 102412053B CN 201010291878 A CN201010291878 A CN 201010291878A CN 102412053 B CN102412053 B CN 102412053B
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- conservator
- flange
- bushing
- oil
- joint
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Abstract
The invention relates to a capacitive transformer bushing, which comprises a conducting bar, a general cap, a joint, a conservator, a bushing, a porcelain bushing, a flange, a shielding bushing, a conductive tube and the like, wherein the shielding bushing is fixedly arranged on the flange; a voltage-equalizing ball is arranged on the lower part of the shielding bushing; the conductive tube is plugged in an inner cavity of the shielding bushing; the bushing is sleeved at the periphery of the conductive tube, the lower end of the porcelain bushing is connected with the flange, and the upper part of the porcelain bushing is connected with the conservator; the joint is arranged on the conservator, the conservator is an oil storage device provided with an oil gear, and a belleville spring in the conservator contacts the conductive tube; because the oil gear is arranged in the conservator, the whole transformer bushing can be horizontally placed for transportation, so that the transformer bushing is conveniently and safely transported; an oil cup inspection window is arranged on the conservator, which facilitates observation of insulating oil in the bushing; because a plurality of fixed grooves are formed on the flange and combined with a sealing ring, the porcelain bushing is reliably fixed; and a test tapping point is reliably connected with a flange base, which facilitates performance test.
Description
Technical field
The present invention relates to a kind of bushing shell for transformer, specifically a kind of capacitance type transformer sleeve.
Background technology
Through retrieval Patent documents of interest, not yet retrieve a kind of capacitance type transformer sleeve identical with structure of the present invention at present.Its main insulation of the oil-impregnated paper condenser type transformer bushing of existing use generally adopts oil-paper capacitor body, after vacuumize, then forms through vacuum impregnation in transformer oil.Although this class formation has excellent elasticity, but also due to reasons in structure, it is made easily to occur seepage, the problems such as oil pollution, and due to the change of temperature after running a period of time, easily there is gathering of gas and medium, if now will interruption maintenance be carried out, then maintenance cost is higher, and affect user power utilization, the use of existing capacitance type transformer sleeve is made to be subject to certain impact and restriction, particularly because the reason product of structure can only be on end in transportation, a lot of inconvenience is brought to the transportation safety of product, so be necessary to be improved existing capacitance type transformer sleeve, to better meet the needs of production.
Summary of the invention
The object of the invention is to provide a kind of improvement on existing capacitance type transformer sleeve basis, there is good seal performance, can in time the oil sample in sleeve pipe be detected, be controlled, have that compact conformation, maintenance are few, a kind of capacitance type transformer sleeve of convenient transportation.
Technical characteristic of the present invention is: considering good seal performance, transport, basis easy to detect be designed to, by busbar, a kind of capacitance type transformer sleeve of army cap, joint, conservator, sleeve pipe, insulator, flange, shielded tube, insulating cylinder, voltage equalizing ball, contact tube being formed, flange is fixed with shielded tube; Voltage equalizing ball is provided with in the bottom of shielded tube; Contact tube is fitted with in the inner chamber of shielded tube; In the outer race of contact tube, sleeve pipe is housed, in sleeve pipe outer race, insulator is housed; The lower end of insulator is connected with flange, and the top of insulator is connected with conservator; Conservator is provided with joint, and joint is connected with busbar; Joint outer be arranged be connected with conservator by army cap; Described conservator is the Oil container being provided with oil catch position, and conservator is provided with lubricating cup inspection hole, and the butterfly spring in conservator contacts with contact tube; Insulating oil is injected in the space that contact tube and insulator inner chamber are formed.
Described conservator is made up of lubricating cup inspection hole, butterfly spring, case, oil catch position, respiratory cavity, and oil catch position is arranged on the inner chamber bottom of case; Described butterfly spring is made up of annular body, upper convex body, lower convex body, and upper convex body, lower convex body are arranged on annular body respectively in opposite directions; Described oil catch position is a curved baffle, and the bottom of oil catch position is connected with the inner chamber bottom surface of case, and the side of oil catch position is connected with the inner chamber of case; Described case is the housing of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process.
Described flange is made up of flange seat, test tap, sealing ring, fuel outlet valve, and test tap is packed on flange seat, and fuel outlet valve is arranged on flange seat; Described test tap is the test tap of an oil sample in measuring transformer sleeve pipe, the field intensity on shielded tube.
Described flange seat is provided with the holddown groove for fixing insulator.
Described test tap is made up of grounding base, banded fingertip, downhole joint, sealing ring, insulating base, insulating base is connected with grounding base, downhole joint is connected with shielded tube, grounding base is tightly connected mutually with flange seat, and sealed by sealing ring, downhole joint is provided with banded fingertip, and banded fingertip is contacted with grounding base.
Described flange is the cast aluminium component of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process.
Described shielded tube adopts the cable paper of wide format to be wound around, and forms the socket that electric field strength is optimized.
During installation, a kind of capacitance type transformer sleeve is installed on the transformer, and is connected with transformer by hold-down bolt.When the insulating oil in sleeve pipe expands along with the change of temperature, then certain height change made by insulating oil in conservator, be provided with in conservator oil catch position its objective is in order to prevent whole bushing shell for transformer run-off the straight or overall sleeping put time conservator respiratory cavity in gas to enter between sleeve pipe and insulator thus may product quality design be affected; Shielded tube is set outside contact tube and its objective is that the Electric Field Distribution in order to homogenizing contact tube is arranged; Flange is provided with test tap and its objective is that the electric field for the ease of test shielding its vicinity is arranged.
Advantage of the present invention is: owing to being provided with oil catch position in conservator, thus transports after can making under the prerequisite ensureing properties of product that whole bushing shell for transformer is sleeping and putting, and makes convenient transportation, safety; Because conservator is provided with lubricating cup inspection hole, thus facilitate the insulating oil in sleeve pipe is observed; Contact owing to being provided with butterfly spring and sealing mutually with contact tube, thus ensure that the sealing property in the seal cavity of formation, and contact tube and conservator can be made to carry out close contact; Because flange is provided with test tap, thus facilitate test; Owing to being provided with fuel outlet valve, thus oil sample can be extracted easily, the insulating oil performance in monitoring sleeve; Be provided with several holddown groove due to flange and combine with sealing ring, thus making insulator fixing reliable; Because the connection between test tap and flange seat is reliable, compact, thus facilitate performance test; Owing to being provided with grounding base in test tap, thus make integral ground convenient; Due to rational in infrastructure, convenient test, dependable performance, so there is very large practical and popularizing value.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is conducted further description:
Accompanying drawing 1 is the structural representation of a kind of capacitance type transformer sleeve of the present invention;
Accompanying drawing 2 is partial structurtes schematic diagrames of accompanying drawing 1 conservator and general's cap portion;
Accompanying drawing 3 is partial structurtes schematic diagrames of a kind of flange seat part of capacitance type transformer sleeve;
Accompanying drawing 4 is structural representations of the banded fingertip of test tap in a kind of flange of capacitance type transformer sleeve;
Accompanying drawing 5 is structural representations of the butterfly spring in a kind of conservator of capacitance type transformer sleeve;
Accompanying drawing 6 is along the A of accompanying drawing 5 to structural representation;
Accompanying drawing 7 is a kind of capacitance type transformer sleeves at the sleeping partial structurtes schematic diagram putting conservator part under state.
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, a kind of capacitance type transformer sleeve of the present invention, it is fixed with shielded tube 8 by busbar 1, army cap 2, joint 3, conservator 4, sleeve pipe 5, insulator 6, flange 7, shielded tube 8, insulating cylinder 9, voltage equalizing ball 10, contact tube 11 are formed on flange 7; Be provided with voltage equalizing ball 10 in the bottom of shielded tube 8, described shielded tube 8 adopts the cable paper of wide format to be wound around, and forms the socket that electric field strength is optimized; In the inner chamber of shielded tube 8, be fitted with contact tube 11, in the outer race of contact tube 11, sleeve pipe 5 be housed, in sleeve pipe 5 outer race, insulator 6 is housed; The lower end of insulator 6 is connected with flange 7, the top of insulator 6 is connected with conservator 4, described flange 7 is the cast aluminium component of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process, flange 7 is made up of flange seat 71, test tap 72, sealing ring 73, fuel outlet valve 74, test tap 72 is packed on flange seat 71, and fuel outlet valve 74 is arranged on flange seat 71; Described test tap 72 is the test tap of an oil sample in measuring transformer sleeve pipe, the field intensity on shielded tube, described test tap 72 is made up of grounding base 721, banded fingertip 722, downhole joint 723, sealing ring 724, insulating base 725, insulating base 725 is connected with grounding base 721, downhole joint 723 is connected with shielded tube 8, grounding base 721 is tightly connected mutually with flange seat 71, and sealed by sealing ring 724, described flange seat 71 is provided with the holddown groove 71a for fixing insulator 6; Downhole joint 723 is provided with banded fingertip 722, and banded fingertip 722 is contacted with grounding base 721.Conservator 4 is provided with joint 3, and joint 3 is connected with busbar 1; Joint 3 outer be arranged be connected with conservator 4 by army cap 2; Described conservator 4 is for being provided with the Oil container of oil catch position 44, and conservator 4 is provided with lubricating cup inspection hole 41, and conservator 4 is made up of lubricating cup inspection hole 41, butterfly spring 42, case 43, oil catch position 44, respiratory cavity 45, and oil catch position 44 is arranged on the inner chamber bottom of case 43; Described oil catch position 44 is a curved baffle, and the bottom 441 of oil catch position 44 is connected with the inner chamber bottom surface of case 43, and the side 442 of oil catch position 44 is connected with the inner chamber of case 43; Butterfly spring 42 in conservator 4 contacts with contact tube 11, and described butterfly spring 42 is made up of annular body 421, upper convex body 422, lower convex body 423, and upper convex body 422, lower convex body 423 are arranged on annular body 421 respectively in opposite directions; Described case 43 is the housing of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process; Insulating oil is injected in the space that contact tube 11 and insulator 6 inner chamber are formed.
With reference to accompanying drawing 7, accompanying drawing 7 is a kind of capacitance type transformer sleeves of the present invention at the sleeping partial structurtes schematic diagram putting conservator part under state, bushing shell for transformer entirety crouch put after insulating oil in space that contact tube 11 and insulator 6 inner chamber are formed, oil catch position 44 carry out blocking and avoid insulating oil and flow out.
Claims (4)
1. a capacitance type transformer sleeve, it is characterized in that: on flange (7), be fixed with shielded tube (8) by busbar (1), army cap (2), joint (3), conservator (4), sleeve pipe (5), insulator (6), flange (7), shielded tube (8), insulating cylinder (9), voltage equalizing ball (10), contact tube (11) are formed, voltage equalizing ball (10) is provided with in the bottom of shielded tube (8), contact tube (11) is fitted with in the inner chamber of shielded tube (8), in the outer race of contact tube (11), sleeve pipe (5) is housed, in sleeve pipe (5) outer race, insulator (6) is housed, the lower end of insulator (6) is connected with flange (7), and the top of insulator (6) is connected with conservator (4), conservator (4) is provided with joint (3), and joint (3) is connected with busbar (1), joint (3) outer be arranged be connected with conservator (4) by army cap (2), described conservator (4) is for being provided with the Oil container of oil catch position (44), conservator (4) is provided with lubricating cup inspection hole (41), and the butterfly spring (42) in conservator (4) contacts with contact tube (11), described conservator (4) is made up of lubricating cup inspection hole (41), butterfly spring (42), case (43), oil catch position (44), respiratory cavity (45), and oil catch position (44) are arranged on the inner chamber bottom of case (43), described butterfly spring (42) is made up of annular body (421), upper convex body (422), lower convex body (423), and upper convex body (422), lower convex body (423) are arranged on annular body (421) respectively in opposite directions, described oil catch position (44) is a curved baffle, the bottom (441) of oil catch position (44) is connected with the inner chamber bottom surface of case (43), and the side (442) of oil catch position (44) is connected with the inner chamber of case (43), described case (43) is the housing of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process, described flange (7) is made up of flange seat (71), test tap (72), sealing ring (73), fuel outlet valve (74), test tap (72) is packed on flange seat (71), and fuel outlet valve (74) is arranged on flange seat (71), described test tap (72) is the test tap of an oil sample in measuring transformer sleeve pipe, the field intensity on shielded tube, described test tap (72) is by grounding base (721), banded fingertip (722), downhole joint (723), sealing ring (724), insulating base (725) forms, insulating base (725) is connected with grounding base (721), downhole joint (723) is connected with shielded tube (8), grounding base (721) is tightly connected mutually with flange seat (71), and sealed by sealing ring (724), downhole joint (723) is provided with banded fingertip (722), and banded fingertip (722) is contacted with grounding base (721), insulating oil is injected in the space that contact tube (11) and insulator (6) inner chamber are formed.
2. a kind of capacitance type transformer sleeve according to claim 1, is characterized in that: described flange seat (71) is provided with the holddown groove (71a) for fixing insulator (6).
3. a kind of capacitance type transformer sleeve according to claim 1, is characterized in that: described flange (7) is the cast aluminium component of alloy aluminum again through anti-oxidant treatment after surface sand-blasting process.
4. a kind of capacitance type transformer sleeve according to claim 1, is characterized in that: described shielded tube (8) adopts the cable paper of wide format to be wound around, and forms the socket that electric field strength is optimized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010291878.7A CN102412053B (en) | 2010-09-21 | 2010-09-21 | Capacitive transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010291878.7A CN102412053B (en) | 2010-09-21 | 2010-09-21 | Capacitive transformer bushing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102412053A CN102412053A (en) | 2012-04-11 |
| CN102412053B true CN102412053B (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010291878.7A Active CN102412053B (en) | 2010-09-21 | 2010-09-21 | Capacitive transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102412053B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500967A (en) * | 2013-10-22 | 2014-01-08 | 国家电网公司 | Resin impregnated paper capacitance type extra-high-voltage alternating current-direct current wall bushing |
| CN104167280A (en) * | 2014-08-06 | 2014-11-26 | 国家电网公司 | Fastening device for conducting rod of bushing shell of transformer |
| 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 |
| CN106783082A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | A kind of oil immersed type capacitance graded bushing |
| CN111161946B (en) * | 2020-01-03 | 2023-10-27 | 云南电网有限责任公司电力科学研究院 | Shock-resistant transformer bushing with oil pressure compensation and monitoring and protecting method |
| CN113659371B (en) * | 2021-08-13 | 2023-08-25 | 云南电网有限责任公司电力科学研究院 | Electric connection structure for improving operation reliability of sleeve |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3838334A (en) * | 1971-03-29 | 1974-09-24 | Westinghouse Electric Corp | Electrical device with two-terminal bushing |
| CN2264955Y (en) * | 1996-10-15 | 1997-10-15 | 沈阳变压器厂一分厂 | 35KV oiled paper capacity casing |
| CN2539255Y (en) * | 2002-04-12 | 2003-03-05 | 北京国电四维电力技术有限公司 | Dry-high voltage equipment outlet sleeve |
| CN2805036Y (en) * | 2005-05-27 | 2006-08-09 | 南京智达电气有限公司 | Oilpaper capacitive transformer casing |
| CN2911891Y (en) * | 2006-06-08 | 2007-06-13 | 南京智达电气有限公司 | Oiled paper capacitor type sleeve |
| CN201072688Y (en) * | 2007-07-27 | 2008-06-11 | 中电电气集团有限公司 | Transformer oil baffle device and oil guiding structure using the same |
| CN201174296Y (en) * | 2008-04-07 | 2008-12-31 | 保定天威集团有限公司 | Vacuum oil injection type capsule oil storage cabinet |
| CN201311830Y (en) * | 2008-12-15 | 2009-09-16 | 锦州变压器股份有限公司 | Cable incoming device of transformer high-voltage side |
| 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 |
-
2010
- 2010-09-21 CN CN201010291878.7A patent/CN102412053B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102412053A (en) | 2012-04-11 |
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