CN102412053A - Capacitive transformer bushing - Google Patents
Capacitive transformer bushing Download PDFInfo
- Publication number
- CN102412053A CN102412053A CN2010102918787A CN201010291878A CN102412053A CN 102412053 A CN102412053 A CN 102412053A CN 2010102918787 A CN2010102918787 A CN 2010102918787A CN 201010291878 A CN201010291878 A CN 201010291878A CN 102412053 A CN102412053 A CN 102412053A
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- conservator
- flange
- bushing
- sleeve pipe
- oil
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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 capacitive transformer sleeve pipe.
Background technology
Through the relevant patent documentation of retrieval, do not retrieve a kind of capacitive transformer sleeve pipe identical at present as yet with structure of the present invention.Existing its main insulation of oil-impregnated paper condenser type transformer bushing of using generally adopts the oil-paper capacitor body, after vacuumize, in transformer oil, forms through vacuum impregnation again.Though this class formation has excellent elasticity, also because reasons in structure makes it be prone to problems such as seepage, oil pollution; And because variation of temperature is prone to gathering of gas and medium, this moment is if carry out interruption maintenance after operation a period of time; Then maintenance cost is higher, and influences user power utilization, makes the use of existing capacitive transformer sleeve pipe receive certain influence and restriction; Particularly because the structural reason product can only be on end in transportation; Bring a lot of inconvenience for the transportation safety of product, thus be necessary existing capacitive transformer sleeve pipe is improved, to better meet the needs of production.
Summary of the invention
The objective of the invention is to provide a kind of improvement on existing capacitive transformer sleeve pipe basis; Has good seal performance; Can in time detect, control, have that compact conformation, maintenance are few, a kind of capacitive transformer sleeve pipe of convenient transportation the oil sample in the sleeve pipe.
Technical characterictic of the present invention is: be designed on flange, be fixed with shielded tube by busbar, with a kind of capacitive transformer sleeve pipe that army cap, joint, conservator, sleeve pipe, insulator, flange, shielded tube, insulating cylinder, voltage equalizing ball, contact tube are formed on good seal performance, transportation, the basis easy to detect considering; Bottom at shielded tube is provided with voltage equalizing ball; In the inner chamber of shielded tube, be fitted with contact tube; Outer race at contact tube is equipped with sleeve pipe, in the 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; On conservator, be provided with joint, joint is connected with busbar; Be provided with in the periphery of joint be connected with conservator with army cap; Described conservator is the Oil container that is provided with the oil catch position, and conservator is provided with the lubricating cup inspection hole, and the butterfly spring in the conservator contacts with contact tube; In the space of contact tube and the formation of insulator inner chamber, inject insulating oil.
Described conservator is made up of lubricating cup inspection hole, butterfly spring, case, oil catch position, respiratory cavity, and the oil catch position is arranged on the inner chamber bottom of case; Described butterfly spring is made up of annular circle body, last convex body, following convex body, and last convex body, following convex body are arranged on the annular circle body respectively in opposite directions; Described oil catch position is a curved baffle, and the bottom of oil catch position links to each other 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 an alloy aluminum after surface sand-blasting is handled again through the housing of anti-oxidant treatment.
Described flange is made up of flange seat, test tap, sealing ring, fuel outlet valve, and the test tap is packed on the flange seat, and fuel outlet valve is arranged on the flange seat; Described test tap is one to be used for the oil sample in the measuring transformer sleeve pipe, the test tap of the field intensity on the shielded tube.
Described flange seat is provided with the holddown groove that is used for fixing insulator.
Described test tap is made up of grounding base, banded fingertip, measurement joint, sealing ring, insulating base; Insulating base is connected with grounding base; Measure joint and be connected with shielded tube, grounding base is tightly connected with flange seat mutually, and seals through sealing ring; On the measurement joint, be provided with banded fingertip, and banded fingertip is contacted with grounding base.
Described flange is an alloy aluminum after surface sand-blasting is handled again through the cast aluminium member of anti-oxidant treatment.
Described shielded tube adopts the cable paper of wide format to twine, and forms the socket that electric field strength is optimized.
During installation, a kind of capacitive transformer sleeve pipe is installed on the transformer, and is connected with transformer through hold-down bolt.When the insulating oil in the sleeve pipe expands along with variation of temperature; Then insulating oil is made certain height and is changed in conservator, its objective is in order to prevent that crouch gas in the respiratory cavity of conservator when putting of whole bushing shell for transformer run-off the straight or whole from entering between sleeve pipe and the insulator and possibly influence product quality design thereby be provided with the oil catch position in the conservator; Contact tube is provided with shielded tube outward and its objective is that the Electric Field Distribution for the homogenizing contact tube is provided with; Flange is provided with the test tap and its objective is for the ease of the electric field of test around the shielded tube and be provided with.
Advantage of the present invention is: owing to be provided with the oil catch position in the conservator, thereby can transport after whole bushing shell for transformer is crouched to be put guaranteeing, make convenient transportation, safety; Because conservator is provided with the lubricating cup inspection hole, thereby made things convenient for the insulating oil in the sleeve pipe is observed; Since be provided with butterfly spring and seal contact mutually with contact tube, thus the sealing property in the seal cavity that has guaranteed to form, and contact tube is closely contacted with conservator; Because flange is provided with the test tap, thereby has made things convenient for test; Owing to be provided with fuel outlet valve, thereby can extract oil sample easily, the insulating oil performance in the monitoring sleeve; Because flange is provided with several holddown groove and combines with sealing ring, thereby make insulator fixing reliable; Because being connected between test tap and the flange seat is reliable, compact, thereby has made things convenient for performance test; Owing to be provided with grounding base in the test tap, thereby make integral ground convenient; Owing to rational in infrastructure, convenient test, dependable performance, so very big practical and popularizing value is arranged.
Description of drawings
Below will combine accompanying drawing that the present invention is further described:
Accompanying drawing 1 is the structural representation of a kind of capacitive transformer sleeve pipe of the present invention;
Accompanying drawing 2 is partial structurtes sketch mapes of accompanying drawing 1 conservator and general's cap portion;
Accompanying drawing 3 is partial structurtes sketch mapes of a kind of flange seat part of capacitive transformer sleeve pipe;
Accompanying drawing 4 is structural representations of the banded fingertip of the test tap in a kind of flange of capacitive transformer sleeve pipe;
Accompanying drawing 5 is structural representations of the butterfly spring in a kind of conservator of capacitive transformer sleeve pipe;
Accompanying drawing 6 is that A along accompanying drawing 5 is to structural representation;
Accompanying drawing 7 is that a kind of capacitive transformer sleeve pipe is at the partial structurtes sketch map of putting conservator part under the state for sleeping in.
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 capacitive transformer sleeve pipe 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 twine, and forms the socket that electric field strength is optimized; In the inner chamber of shielded tube 8, be fitted with contact tube 11, sleeve pipe 5 be housed, insulator 6 is housed in sleeve pipe 5 outer race in the outer race of contact tube 11; 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 an alloy aluminum after surface sand-blasting is handled again through the cast aluminium member of anti-oxidant treatment; Flange 7 is made up of flange seat 71, test tap 72, sealing ring 73, fuel outlet valve 74, and test tap 72 is packed on the flange seat 71, and fuel outlet valve 74 is arranged on the flange seat 71; Described test tap 72 is one to be used for the oil sample in the measuring transformer sleeve pipe, the test tap of the field intensity on the shielded tube; Described test tap 72 is made up of grounding base 721, banded fingertip 722, measurement joint 723, sealing ring 724, insulating base 725; Insulating base 725 is connected with grounding base 721; Measuring joint 723 is connected with shielded tube 8; Grounding base 721 is tightly connected with flange seat 71 mutually, and seals through sealing ring 724, and described flange seat 71 is provided with the holddown groove 71a that is used for fixing insulator 6; On measurement joint 723, be provided with banded fingertip 722, and banded fingertip 722 is contacted with grounding base 721.On conservator 4, be provided with joint 3, joint 3 is connected with busbar 1; Be provided with in the periphery of joint 3 be connected with conservator 4 with 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 links to each other 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 the conservator 4 contacts with contact tube 11, described butterfly spring 42 by annular circle body 421, go up convex body 422, convex body 423 is formed down, last convex body 422, descends convex body 423 to be arranged in opposite directions respectively on the annular circle body 421; Described case 43 is an alloy aluminum after surface sand-blasting is handled again through the housing of anti-oxidant treatment; In the space that contact tube 11 and insulator 6 inner chambers form, inject insulating oil.
With reference to accompanying drawing 7; To be a kind of capacitive transformer sleeve pipes of the present invention put the partial structurtes sketch map of conservator part under the state crouching with accompanying drawing 7, and bushing shell for transformer crouches in integral body and puts insulating oil in the space that oil catch position 44, back forms contact tube 11 and insulator 6 inner chambers and block and avoided the insulating oil outflow.
Claims (7)
1. capacitive transformer sleeve pipe; 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; Be provided with voltage equalizing ball (10) in the bottom of shielded tube (8); In the inner chamber of shielded tube (8), be fitted with contact tube (11); Outer race at contact tube (11) is equipped with sleeve pipe (5), 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); On conservator (4), be provided with joint (3), joint (3) is connected with busbar (1); Be provided with in the periphery of joint (3) be connected with conservator (4) with 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 the butterfly spring (42) in the conservator (4) contacts with contact tube (11); In the space that contact tube (11) and insulator (6) inner chamber form, inject insulating oil.
2. a kind of capacitive transformer sleeve pipe according to claim 1; It is characterized in that: 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 circle body (421), last convex body (422), following convex body (423), and last convex body (422), following convex body (423) are arranged on respectively on the annular circle body (421) in opposite directions; Described oil catch position (44) is a curved baffle, and the bottom (441) of oil catch position (44) links to each other 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 an alloy aluminum after surface sand-blasting is handled again through the housing of anti-oxidant treatment.
3. a kind of capacitive transformer sleeve pipe according to claim 1; It is characterized in that: 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 the flange seat (71), and fuel outlet valve (74) is arranged on the flange seat (71); Described test tap (72) is one to be used for the oil sample in the measuring transformer sleeve pipe, the test tap of the field intensity on the shielded tube.
4. according to claim 1 or 3 described a kind of capacitive transformer sleeve pipes, it is characterized in that: described flange seat (71) is provided with the holddown groove (71a) that is used for fixing insulator (6).
5. according to claim 1 or 3 described a kind of capacitive transformer sleeve pipes; It is characterized in that: described test tap (72) is made up of grounding base (721), banded fingertip (722), measurement joint (723), sealing ring (724), insulating base (725); Insulating base (725) is connected with grounding base (721); Measure joint (723) and be connected with shielded tube (8), grounding base (721) is tightly connected with flange seat (71) mutually, and seals through sealing ring (724); On measurement joint (723), be provided with banded fingertip (722), and banded fingertip (722) is contacted with grounding base (721).
6. a kind of capacitive transformer sleeve pipe according to claim 1 is characterized in that: described flange (7) for alloy aluminum after surface sand-blasting is handled again through the cast aluminium member of anti-oxidant treatment.
7. a kind of capacitive transformer sleeve pipe according to claim 1 is characterized in that: described shielded tube (8) adopts the cable paper of wide format to twine, 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 true CN102412053A (en) | 2012-04-11 |
| CN102412053B 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) |
Cited By (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 |
| CN105469957A (en) * | 2015-12-28 | 2016-04-06 | 南京电气高压套管有限公司 | Vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing |
| CN106783082A (en) * | 2016-12-09 | 2017-05-31 | 徐超 | A kind of oil immersed type capacitance graded bushing |
| CN111161946A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Anti-seismic transformer bushing with oil pressure compensation and monitoring and protecting method |
| CN113659371A (en) * | 2021-08-13 | 2021-11-16 | 云南电网有限责任公司电力科学研究院 | Electric connection structure for improving running reliability of sleeve |
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| 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 |
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2010
- 2010-09-21 CN CN201010291878.7A patent/CN102412053B/en active Active
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| 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 |
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Cited By (9)
| 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 |
| CN105469957A (en) * | 2015-12-28 | 2016-04-06 | 南京电气高压套管有限公司 | Vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing |
| 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 |
| CN111161946A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Anti-seismic transformer bushing with oil pressure compensation and monitoring and protecting method |
| 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 |
| CN113659371A (en) * | 2021-08-13 | 2021-11-16 | 云南电网有限责任公司电力科学研究院 | Electric connection structure for improving running reliability of sleeve |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102412053B (en) | 2015-01-14 |
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