CN103093943A - Transformer bushing - Google Patents
Transformer bushing Download PDFInfo
- Publication number
- CN103093943A CN103093943A CN2011103397828A CN201110339782A CN103093943A CN 103093943 A CN103093943 A CN 103093943A CN 2011103397828 A CN2011103397828 A CN 2011103397828A CN 201110339782 A CN201110339782 A CN 201110339782A CN 103093943 A CN103093943 A CN 103093943A
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- Prior art keywords
- bushing
- flange
- sleeve pipe
- tap
- transformer
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Abstract
The invention relates to a transformer bushing used in power industries. The transformer bushing is composed of a connecting bar, a general cap, a joint, an oil pillow, a bushing, a porcelain sleeve, a flange, a shielding bushing, an insulating barrel, a voltage-sharing ball and a conducting tube, the shielding bushing is fixedly mounted on the flange, the voltage-sharing ball is arranged on the lower portion of the shielding bushing, the conducting tube is mounted in an inner cavity of the shielding bushing in an inserted manner, the bushing is mounted on the periphery of the conducting tube in a sleeved manner, the bushing is an insulating capacitor provided with multiple leading-out taps, and the lower end of the porcelain sleeve is connected with the flange. The multiple leading-out taps are arranged on the bushing and connected with a detecting device, so that detecting process can be more reliable; the taps are led out from an outermost-layer electrode and a secondary outer-layer electrode of the bushing respectively, and a low-power power source of with certain voltage can be obtained between the two electrodes during equipment running, so that a power source is provided for the detecting device; connection between test taps and the flange is reliable and compact, so that performance testing is facilitated; and grounding seats are arranged in the test taps, so that grounding is facilitated integrally.
Description
Technical field
The present invention relates to a kind of bushing shell for transformer that power industry is used.
Background technology
Through retrieving relevant patent documentation, not yet retrieve a kind of bushing shell for transformer identical with structure of the present invention at present.Existing its main insulation of oilpaper bushing shell for transformer of using generally adopts the oil-paper capacitor body, after vacuumize, then soaks through vacuum in transformer and forms.Although this class formation has good elasticity, but also due to reasons in structure, make it be prone to the problems such as seepage, oil pollution, and after operation a period of time due to the variation of temperature, be prone to gathering of gas and medium, this moment, maintenance cost was higher if carry out interruption maintenance, and affect electricity consumption, maintenance cost is higher; And existing bushing shell for transformer can only be to the powerful device power supply source after the tap of outermost layer electrode is drawn; Continuous propelling along with digitizer and intelligent grid requirement, when existing equipment requires sleeve pipe is detected, also need existing power supply is carried out transformation or offers controller by a low power power supply, so that being provided, power supply controls, make the cost of equipment significantly improve, and be difficult to reach the purpose of accurate test, thus be necessary existing bushing shell for transformer is improved, to satisfy the needs of intelligent grid.
Summary of the invention
The objective of the invention is to provide a kind of improvement on existing bushing shell for transformer basis, can reduce equipment investment, have good seal performance and compact conformation, a kind of bushing shell for transformer of dependable performance.
Technical characterictic of the present invention is: be designed to be fixed with shielded tube by busbar, with a kind of bushing shell for transformer that army cap, joint, conservator, sleeve pipe, insulator, flange, shielded tube, insulating cylinder, voltage equalizing ball, contact tube form on flange on dependable performance, basis easy to detect considering; Bottom at shielded tube is provided with voltage equalizing ball; Be fitted with contact tube in the inner chamber of shielded tube; Outer race at contact tube is equipped with sleeve pipe, in the sleeve pipe outer race, insulator is housed, and described sleeve pipe is to be provided with a plurality of insulation capacitance bodies of drawing tap; The lower end of insulator is connected with flange, and the top of insulator is connected with conservator; Be provided with joint on conservator, joint is connected with busbar; Joint outer be arranged be connected with conservator with army cap; Inject insulating oil in the space of contact tube and the formation of insulator inner chamber.
Described sleeve pipe is to be provided with a plurality of insulation capacitance bodies of drawing tap to refer to be provided with outer electrode at outermost layer, and inferior skin is provided with time outer electrode, and can draw tap setting interlayer electrode in other aspect respectively as requested.
The insulation capacitance body of described sleeve pipe is comprised of dielectric, electrode, forms through reeling or soaking.
Described flange is comprised of flange seat, test tap, sealing ring, fuel outlet valve, detection tapping device, and the test tap is packed on flange seat, and fuel outlet valve is arranged on 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 shielded tube; Detect tapping device respectively with sleeve pipe on a plurality ofly draw tap and be connected.
During installation, bushing shell for transformer is arranged on transformer, and is connected with transformer by hold-down bolt.When the insulating oil in sleeve pipe expanded along with the variation of temperature, insulating oil was made certain height change in conservator.contact tube arranges shielded tube outward and its objective is that the Electric Field Distribution for the homogenizing contact tube arranges, flange is provided with the test tap and its objective is for the ease of the electric field of test around shielded tube and arrange, the detection tapping device that arranges on flange its objective is that being convenient to the tap of will draw on sleeve pipe is connected and arranges, the detection tapping device is connected with checkout gear and can obtains the small-power power of certain voltage, and can also detect between two electrodes in the outermost layer electrode grounding, and be grounded protection, the reliability of outermost layer electrode grounding can be detected in real time, the insulation property of capacitance core have been guaranteed, and signal detected in line detector outside, can reach the purpose that in time notes abnormalities and take measures.
Advantage of the present invention is: owing to being provided with a plurality of taps of drawing on sleeve pipe, and be connected with checkout gear, make whole testing process more reliable; Because outermost layer electrode and time outer electrode from sleeve pipe are drawn respectively tap, just can obtain the small-power power of certain voltage when moving by equipment between two-plate, provide power supply to checkout gear; Because conservator is provided with the lubricating cup inspection hole, thereby facilitated, the insulating oil in sleeve pipe is observed; Because flange is provided with the test tap, thereby facilitated test; Owing to being provided with fuel outlet valve, thereby can extract easily oil sample, the insulating oil performance in monitoring sleeve; Because being connected between test tap and flange seat is reliable, compact, thereby facilitated performance test; Be provided with grounding base owing to testing in tap, thereby make integral ground convenient; Due to rational in infrastructure, convenient test, dependable performance, so very large practical and popularizing value is arranged.
Description of drawings
Below with reference to accompanying drawing, the present invention is conducted further description:
Accompanying drawing 1 is the structural representation of a kind of bushing shell for transformer of the present invention;
Accompanying drawing 2 is sleeve pipe partial structurtes schematic diagrames of a kind of bushing shell for transformer;
Accompanying drawing 3 is partial structurtes schematic diagrames of a kind of flange seat part of bushing shell for transformer.
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, with reference to accompanying drawing 3, a kind of bushing shell for transformer 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; Be fitted with contact tube 11 in the inner chamber of shielded tube 8; Outer race at contact tube 11 is equipped with sleeve pipe 5, in sleeve pipe 5 outer race, insulator 6 is housed, and the insulation capacitance body of described sleeve pipe 5 is comprised of dielectric, electrode, forms through reeling or soaking; Described sleeve pipe 5 is for being provided with a plurality of insulation capacitance bodies of drawing tap, described sleeve pipe 5 refers to be provided with outer electrode 51 at outermost layer for being provided with a plurality of insulation capacitance bodies of drawing tap, inferior skin is provided with time outer electrode 52, and can draw tap setting interlayer electrode in other aspect respectively as requested, 5 of the sleeve pipes of this enforcement arrange outer electrode 51 at outermost layer, and inferior skin arranges time outer electrode 52; 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 comprised of flange seat 71, test tap 72, sealing ring 73, fuel outlet valve 74, detection tapping device 75, and 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 one to be used for the oil sample in the measuring transformer sleeve pipe, the test tap of the field intensity on shielded tube; Detect tapping device 75 respectively with sleeve pipe 5 on a plurality ofly draw tap and be connected; Be provided with joint 3 on conservator 4, joint 3 is connected with busbar 1; Joint 3 outer be arranged be connected with conservator 4 with army cap 2; Inject insulating oil in the space that contact tube 11 and insulator 6 inner chambers form.
Claims (4)
1. bushing shell for transformer, 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); Be fitted with contact tube (11) in the inner chamber of shielded tube (8); Outer race at contact tube (11) is equipped with sleeve pipe (5), in sleeve pipe (5) outer race, insulator (6) is housed, and it is characterized in that: described sleeve pipe (5) is for being provided with a plurality of insulation capacitance bodies of drawing tap; The lower end of insulator (6) is connected with flange (7), and the top of insulator (6) is connected with conservator (4); Be provided with joint (3) on conservator (4), joint (3) is connected with busbar (1); Joint (3) outer be arranged be connected with conservator (4) with army cap (2); Inject insulating oil in the space that contact tube (11) and insulator (6) inner chamber form.
2. a kind of bushing shell for transformer according to claim 1, it is characterized in that: described sleeve pipe (5) refers to be provided with outer electrode (51) at outermost layer for being provided with a plurality of insulation capacitance bodies of drawing tap, inferior skin is provided with time outer electrode (52), and can draw tap setting interlayer electrode in other aspect respectively as requested.
3. a kind of bushing shell for transformer according to claim 1 and 2, it is characterized in that: the insulation capacitance body of described sleeve pipe (5) is comprised of dielectric, electrode, through reeling or dipping forms.
4. a kind of bushing shell for transformer according to claim 1, it is characterized in that: described flange (7) is comprised of flange seat (71), test tap (72), sealing ring (73), fuel outlet valve (74), detection tapping device (75), 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 one to be used for the oil sample in the measuring transformer sleeve pipe, the test tap of the field intensity on shielded tube; Detect tapping device (75) respectively with sleeve pipe (5) on a plurality ofly draw tap and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103397828A CN103093943A (en) | 2011-11-01 | 2011-11-01 | Transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103397828A CN103093943A (en) | 2011-11-01 | 2011-11-01 | Transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103093943A true CN103093943A (en) | 2013-05-08 |
Family
ID=48206408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103397828A Pending CN103093943A (en) | 2011-11-01 | 2011-11-01 | Transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103093943A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325550A (en) * | 2013-06-28 | 2013-09-25 | 国家电网公司 | Fixing method, fixing structure and fixing supports of leading-out pipelines of transformer bushing end screen |
| CN107478969A (en) * | 2017-08-08 | 2017-12-15 | 江苏智达高压电气有限公司 | A kind of gas insulated bushing end shield structure |
| CN108183415A (en) * | 2017-12-27 | 2018-06-19 | 安徽星博电气科技有限公司 | One kind is used for maintaining low-voltage power equipment device |
| CN110994506A (en) * | 2019-12-20 | 2020-04-10 | 中国电力科学研究院有限公司 | High voltage bushing and method for passing voltage and current through a building or wall |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07326521A (en) * | 1994-06-02 | 1995-12-12 | Mitsubishi Electric Corp | Transformer |
| CN2291553Y (en) * | 1997-06-28 | 1998-09-16 | 电力工业部电力科学研究院 | Dry-type oilless high-tension bushing |
| CN2400881Y (en) * | 1999-11-24 | 2000-10-11 | 廊坊开发区电科院四维电力技术有限公司 | Dry voltage transformer |
| 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 |
| CN201910323U (en) * | 2010-11-27 | 2011-07-27 | 江苏思源赫兹互感器有限公司 | Three-phase capacitor voltage-dividing electronic voltage transformer |
| CN202282231U (en) * | 2011-11-01 | 2012-06-20 | 江苏思源赫兹互感器有限公司 | Transformer bushing |
-
2011
- 2011-11-01 CN CN2011103397828A patent/CN103093943A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07326521A (en) * | 1994-06-02 | 1995-12-12 | Mitsubishi Electric Corp | Transformer |
| CN2291553Y (en) * | 1997-06-28 | 1998-09-16 | 电力工业部电力科学研究院 | Dry-type oilless high-tension bushing |
| CN2400881Y (en) * | 1999-11-24 | 2000-10-11 | 廊坊开发区电科院四维电力技术有限公司 | Dry voltage transformer |
| 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 |
| CN201910323U (en) * | 2010-11-27 | 2011-07-27 | 江苏思源赫兹互感器有限公司 | Three-phase capacitor voltage-dividing electronic voltage transformer |
| CN202282231U (en) * | 2011-11-01 | 2012-06-20 | 江苏思源赫兹互感器有限公司 | Transformer bushing |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325550A (en) * | 2013-06-28 | 2013-09-25 | 国家电网公司 | Fixing method, fixing structure and fixing supports of leading-out pipelines of transformer bushing end screen |
| CN103325550B (en) * | 2013-06-28 | 2015-08-19 | 国家电网公司 | A kind of Transformer Bushing Tap introduction pipe fixing means, structure and fixed support |
| CN107478969A (en) * | 2017-08-08 | 2017-12-15 | 江苏智达高压电气有限公司 | A kind of gas insulated bushing end shield structure |
| CN108183415A (en) * | 2017-12-27 | 2018-06-19 | 安徽星博电气科技有限公司 | One kind is used for maintaining low-voltage power equipment device |
| CN110994506A (en) * | 2019-12-20 | 2020-04-10 | 中国电力科学研究院有限公司 | High voltage bushing and method for passing voltage and current through a building or wall |
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Application publication date: 20130508 |
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| RJ01 | Rejection of invention patent application after publication |