CN105469935A - Protective insulating cylinder for voltage-equalizing ball in transformer bushing oil - Google Patents
Protective insulating cylinder for voltage-equalizing ball in transformer bushing oil Download PDFInfo
- Publication number
- CN105469935A CN105469935A CN201610024824.1A CN201610024824A CN105469935A CN 105469935 A CN105469935 A CN 105469935A CN 201610024824 A CN201610024824 A CN 201610024824A CN 105469935 A CN105469935 A CN 105469935A
- Authority
- CN
- China
- Prior art keywords
- paper
- equalizing ball
- voltage
- insulating cylinder
- cushion blocks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title abstract 3
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
-
- 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
- H01F27/321—Insulating of coils, windings, or parts thereof using a fluid for insulating purposes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to the technical field of a power transformer, and specifically to a protective insulating cylinder for a voltage-equalizing ball in transformer bushing oil. Four annular and uniformly-distributed first cushion blocks are arranged at the bottom of the inner wall of a paper tube to prevent the voltage-equalizing ball in the paper tube from being in contact with the paper tube; four annular and uniformly-distributed second cushion blocks are arranged at the upper part of the inner wall of the paper tube, and the second cushion blocks are fixedly mounted through rivets; two parallel paper rings are arranged on the top of the voltage-equalizing ball; the end plane of the paper ring on the top abuts on the bottom of the second cushion block; and a third cushion block is arranged between the two paper rings, between the paper ring at the bottom and the voltage-equalizing ball, and at the upper part of the paper ring on the top separately, and the third cushion blocks are fixed together through rivets. A protective end ring consisting of multiple layers of cushion blocks and the insulating paper rings are arranged at the upper part of the voltage-equalizing ball, so that the insulating cylinder is supported, and the creep distance of the voltage-equalizing ball on the ground (box wall) is greatly increased; and therefore, the product insulation intensity is effectively improved, and the product reliability is ensured.
Description
Technical field
The present invention relates to power transformer technical field, specifically relate to the protection insulating cylinder of voltage equalizing ball in a kind of bushing shell for transformer oil.
Background technology
As shown in Figure 1, the charged voltage equalizing ball of bushing shell for transformer is usually located at below transformer body fuel tank case lid or case lid raises in seat, certain insulation distance should be kept between charged voltage equalizing ball and other parts of body, when insulation distance cannot meet the demands, corresponding measure must be taked to carry out insulating protection to voltage equalizing ball.Although in 220kV level sleeve pipe oil, even ball insulating cylinder has certain insulation margin in theory in the past, but owing to affecting by factors such as insulating material, insulating cylinder manufacture craft, rigging errors, during product Insulation Test, often occur voltage equalizing ball along stay, paper web is creepage again to the phenomenon that box wall punctures.For this reason, a kind of more effective safeguard structure is found very necessary.
Summary of the invention
For the technical problem existed in prior art, the object of the present invention is to provide the protection insulating cylinder of voltage equalizing ball in a kind of bushing shell for transformer oil, this structural insulation is functional, can effectively solve the problems existed in traditional structure.
To achieve these goals, the technical solution adopted in the present invention is: the protection insulating cylinder of voltage equalizing ball in a kind of bushing shell for transformer oil, comprise paper web, bottom paper web inwall, be provided with four uniform ringwise the first cushion blocks, to prevent the voltage equalizing ball contact paper web inwall in paper web; Paper web upper inside wall is provided with four the second uniform ringwise cushion blocks, and the second cushion block is installed fixing by rivet; The top of voltage equalizing ball is provided with two paper circles be arranged in parallel, and the end face of top paper circle abuts with the bottom of the second cushion block; Between two paper circles, between base paper circle and voltage equalizing ball, the top of top paper circle is respectively arranged with the 3rd cushion block, by being fixed together by rivet.
The protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil of the present invention, its beneficial effect shows:
Original structure is improved, cancel the stay that insulating cylinder inwall is elongated, and the protection end circle be made up of multilayer cushion block, insulating paper circle is set on voltage equalizing ball top, the creepage distance of even ball (box wall) is over the ground considerably increased while supports insulative cylinder, effectively improve product dielectric strength, ensure that product reliability.The present invention can be widely used in the power transformer that 220kV adopts oil-tubing and casing.
Accompanying drawing explanation
Fig. 1 is the front view protecting insulating cylinder in prior art.
Fig. 2 is the structural representation of the protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil of the present invention.
Fig. 3 is the vertical view of the protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil of the present invention.
Embodiment
For further describing the protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil of the present invention, below in conjunction with accompanying drawing, it is described further.
In a kind of bushing shell for transformer oil shown in Fig. 2 and 3, the protection insulating cylinder of voltage equalizing ball, comprises paper web 1, is provided with four uniform ringwise the first cushion blocks 5, contacts paper web 1 inwall to prevent the voltage equalizing ball 7 in paper web 1 bottom paper web 1 inwall; Paper web 1 upper inside wall be provided with four ringwise uniform second cushion block 4, second cushion block 4 installed fixing by rivet 1; The top of voltage equalizing ball 7 is provided with two paper circles 2 be arranged in parallel, and the end face of top paper circle 2 abuts with the bottom of the second cushion block 4; Between two paper circles 2, between base paper circle and voltage equalizing ball 7, the top of top paper circle 2 is respectively arranged with the 3rd cushion block 6, by being fixed together by rivet.
Above content is only to design example of the present invention and explanation; affiliated those skilled in the art make various amendment to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the design of invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (1)
1. the protection insulating cylinder of voltage equalizing ball in a bushing shell for transformer oil, comprise paper web (1), it is characterized in that, four uniform ringwise the first cushion blocks (5) are provided with, to prevent voltage equalizing ball (7) contact paper web (1) inwall in paper web (1) bottom paper web (1) inwall; Paper web (1) upper inside wall is provided with four the second cushion blocks (4) uniform ringwise, and the second cushion block (4) is installed fixing by rivet (1); The top of voltage equalizing ball (7) is provided with two paper circles (2) be arranged in parallel, and the end face at top paper circle (2) abuts with the bottom of the second cushion block (4); Between two paper circles (2), between base paper circle and voltage equalizing ball (7), the top at top paper circle (2) is respectively arranged with the 3rd cushion block (6), by being fixed together by rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024824.1A CN105469935B (en) | 2016-01-14 | 2016-01-14 | The protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610024824.1A CN105469935B (en) | 2016-01-14 | 2016-01-14 | The protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105469935A true CN105469935A (en) | 2016-04-06 |
| CN105469935B CN105469935B (en) | 2017-07-07 |
Family
ID=55607543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610024824.1A Active CN105469935B (en) | 2016-01-14 | 2016-01-14 | The protection insulating cylinder of voltage equalizing ball in bushing shell for transformer oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105469935B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424796A (en) * | 2017-08-16 | 2017-12-01 | 扬州市美华电气有限公司 | A kind of voltage equalizing ball |
| CN114171265A (en) * | 2021-12-10 | 2022-03-11 | 天威保变(合肥)变压器有限公司 | A casing pressure equalizing ball insulating cylinder installation structure |
| CN114843100A (en) * | 2022-03-24 | 2022-08-02 | 江西金达电子有限公司 | Transformer paper ring supporting mechanism |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492406A (en) * | 1990-08-08 | 1992-03-25 | Toshiba Corp | Gas insulation transformer |
| CN2613863Y (en) * | 2003-04-04 | 2004-04-28 | 特变电工衡阳变压器有限公司 | Insulation structure attatched to 220 KV sleeved voltage equalizing balls |
| CN201956158U (en) * | 2010-12-31 | 2011-08-31 | 四川东方变压器集团有限公司 | Transformer high-voltage boosting seat |
| CN202217567U (en) * | 2011-09-08 | 2012-05-09 | 杭州钱江电气集团股份有限公司 | Insulating barrel fixing device in high-voltage raising base |
| CN202339785U (en) * | 2011-12-09 | 2012-07-18 | 山东电力设备有限公司 | Ascending flanged base |
| CN202585004U (en) * | 2012-03-16 | 2012-12-05 | 扬州鑫宝电气有限公司 | Extra-high voltage insulation voltage-sharing ball |
| CN202905403U (en) * | 2012-11-15 | 2013-04-24 | 常州市英中电气有限公司 | Outgoing line device on network side of extra-high voltage converter transformer |
| CN202957102U (en) * | 2012-10-26 | 2013-05-29 | 上海宝钢工业技术服务有限公司 | Insulating structure for pressure equalizing ball of oil-impregnated paper condenser type transformer bushing |
| CN203617099U (en) * | 2013-12-25 | 2014-05-28 | 保定天威保变电气股份有限公司 | Novel guide rod type sleeving pressure equalizing ball mounting structure |
| CN204695942U (en) * | 2015-07-01 | 2015-10-07 | 山东电力设备有限公司 | A kind of paralleling reactor of extra-high voltage high-voltage terminal structure |
| CN205487611U (en) * | 2016-01-14 | 2016-08-17 | 天威保变(合肥)变压器有限公司 | Protection insulating cylinder of voltage -sharing ball in transformer bushing oil |
-
2016
- 2016-01-14 CN CN201610024824.1A patent/CN105469935B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0492406A (en) * | 1990-08-08 | 1992-03-25 | Toshiba Corp | Gas insulation transformer |
| CN2613863Y (en) * | 2003-04-04 | 2004-04-28 | 特变电工衡阳变压器有限公司 | Insulation structure attatched to 220 KV sleeved voltage equalizing balls |
| CN201956158U (en) * | 2010-12-31 | 2011-08-31 | 四川东方变压器集团有限公司 | Transformer high-voltage boosting seat |
| CN202217567U (en) * | 2011-09-08 | 2012-05-09 | 杭州钱江电气集团股份有限公司 | Insulating barrel fixing device in high-voltage raising base |
| CN202339785U (en) * | 2011-12-09 | 2012-07-18 | 山东电力设备有限公司 | Ascending flanged base |
| CN202585004U (en) * | 2012-03-16 | 2012-12-05 | 扬州鑫宝电气有限公司 | Extra-high voltage insulation voltage-sharing ball |
| CN202957102U (en) * | 2012-10-26 | 2013-05-29 | 上海宝钢工业技术服务有限公司 | Insulating structure for pressure equalizing ball of oil-impregnated paper condenser type transformer bushing |
| CN202905403U (en) * | 2012-11-15 | 2013-04-24 | 常州市英中电气有限公司 | Outgoing line device on network side of extra-high voltage converter transformer |
| CN203617099U (en) * | 2013-12-25 | 2014-05-28 | 保定天威保变电气股份有限公司 | Novel guide rod type sleeving pressure equalizing ball mounting structure |
| CN204695942U (en) * | 2015-07-01 | 2015-10-07 | 山东电力设备有限公司 | A kind of paralleling reactor of extra-high voltage high-voltage terminal structure |
| CN205487611U (en) * | 2016-01-14 | 2016-08-17 | 天威保变(合肥)变压器有限公司 | Protection insulating cylinder of voltage -sharing ball in transformer bushing oil |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424796A (en) * | 2017-08-16 | 2017-12-01 | 扬州市美华电气有限公司 | A kind of voltage equalizing ball |
| CN107424796B (en) * | 2017-08-16 | 2023-06-23 | 扬州市美华电气有限公司 | Pressure equalizing ball |
| CN114171265A (en) * | 2021-12-10 | 2022-03-11 | 天威保变(合肥)变压器有限公司 | A casing pressure equalizing ball insulating cylinder installation structure |
| CN114843100A (en) * | 2022-03-24 | 2022-08-02 | 江西金达电子有限公司 | Transformer paper ring supporting mechanism |
| CN114843100B (en) * | 2022-03-24 | 2023-05-05 | 江西金达电子有限公司 | Transformer paper ring supporting mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105469935B (en) | 2017-07-07 |
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