CN208478087U - A kind of oil-immersed current transformer expander - Google Patents
A kind of oil-immersed current transformer expander Download PDFInfo
- Publication number
- CN208478087U CN208478087U CN201821115775.3U CN201821115775U CN208478087U CN 208478087 U CN208478087 U CN 208478087U CN 201821115775 U CN201821115775 U CN 201821115775U CN 208478087 U CN208478087 U CN 208478087U
- Authority
- CN
- China
- Prior art keywords
- bellows
- supporting element
- oil
- current transformer
- support plate
- 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.)
- Expired - Fee Related
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- Diaphragms And Bellows (AREA)
Abstract
The utility model discloses a kind of oil-immersed current transformer expander, including bellows, top cover, repairing mouth and at least two groups supporting element, one end of bellows is equipped with ring flange, and the other end sealing cover of bellows is equipped with top cover, repairing mouth is equipped on top cover；Every group of supporting element includes screw rod and two support plates, one support plate of every group of supporting element is set to the gap between two foldable wrinkle pieces of bellows one end, another support plate is set to the gap between two foldable wrinkle pieces for stating the bellows other end, is spirally connected between two support plates of every group of supporting element by screw rod.The utility model passes through setting supporting element, quickly bellow expander can be propped up in repairing, it is easy to operate, safety is good, not injury device, the fuel injection event that traditional oil-immersed current transformer expander occurs in repairing operation is avoided, contamination is avoided, also ensures that repairing operation is normally carried out.
Description
Technical field:
The utility model relates to a kind of expander more particularly to a kind of oil-immersed current transformer expanders.
Background technique:
Current transformer divides dry type, oil immersed type, cast-type, porcelain insulating formula and gas-insulating type by dielectric, my teams and groups
Mainly based on dry type and oil immersed type, the current transformer of 110kV and 220kV voltage class is occupied the equipment of administration with oil immersed type
It is more.
One metallic bellow expander is installed at the top of oil-immersed current transformer, main body is actually one
Elastic element, when the volume of transformer oil in oil-immersed current transformer changes because of temperature change, expander main body
Corresponding change occurs for volume, plays the role of volume compensation.
In oil-immersed current transformer operational process, since running wastage, regular sampling observation, oil-immersed current transformer seep
Phenomena such as oily, will cause the reduction of transformer oil in oil-immersed current transformer, therefore mending transformer oil work is one important
Link.
When mutual inductor repairing, need first to promote expander to designated position, but since expander is elastic element,
With retraction energy, and conventional expanded device is common bellows, is needed when being promoted first foldable by every layer of bellows
Wrinkle piece tilts, and supporting element is installed between the foldable wrinkle piece of adjacent two layers to successively by the foldable of bellow expander
Wrinkle piece is propped up, not only time-consuming, laborious, to take people, heavy workload, workflow cumbersome, due to expander unbalance stress when repairing,
If the telescopic height of expander does not have standard, repetition repairing, waste of resource also will cause；Moreover, because expander is closed
Element, when expander is propped up, inside generates negative pressure, and when supporting element installs shakiness, bellows is easy sudden contraction and causes to spray
The generation of oily phenomenon not only influences repairing operation, but also be easy to cause contamination.
Utility model content:
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of expansions of oil-immersed current transformer
Device.
The utility model is implemented by following technical solution: a kind of oil-immersed current transformer expander, including bellows, top
One end of lid, repairing mouth and at least two groups supporting element, the bellows is equipped with ring flange, the other end sealing cover of the bellows
Equipped with the top cover, repairing mouth is equipped on the top cover；The supporting element is uniformly set to the side wall of the bellows；
Supporting element described in every group includes screw rod and two support plates, and the rotation direction of thread of the screw both end is on the contrary, institute
It states and opens up cambered opening corresponding with the bellows caliber in support plate；
One support plate of supporting element described in every group be set to described bellows one end two foldable wrinkle pieces it
Between gap, another described support plate is set to the gap stated between two foldable wrinkle pieces of the bellows other end,
The opening of the support plate is bonded setting with the bellows；Pass through silk between two support plates of supporting element described in every group
Bar is spirally connected.
Further, the support plate is fixedly connected with the bellows.
Further comprising one end of two groups of supporting elements, opposite two support plate of supporting element described in two groups is hinged,
The other end is flexibly connected, and can be clamped by any fastener.
Further, one end of opposite two support plate of supporting element described in two groups is hinged, and the other end passes through bolt spiral shell
It connects.
Further, handle is equipped in one end of the screw rod be inserted into hole.
The advantages of the utility model:
A kind of oil-immersed current transformer expander of the utility model by setting supporting element, in repairing can quickly by
Bellow expander is propped up, easy to operate, and safety is good, not injury device, is had greatly for safety and working efficiency
Raising；The fuel injection event that traditional oil-immersed current transformer expander occurs in repairing operation is avoided, work is avoided
Environmental pollution also ensures that repairing operation is normally carried out.
Detailed description of the invention:
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of oil-immersed current transformer expander structure schematic diagram of the utility model；
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural schematic diagram of another supporting element in a kind of oil-immersed current transformer expander of the utility model.
In figure: bellows 1, top cover 2, repairing mouth 3, supporting element 4, screw rod 4.1, support plate 4.2, handle are inserted into hole 4.3, method
Blue disk 5.
Specific embodiment:
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of oil-immersed current transformer expander, including bellows 1, top cover 2, repairing mouth 3 and at least two groups supporting element
4, one end of the bellows 1 is equipped with ring flange 5, and the other end sealing cover of the bellows 1 is equipped with the top cover 2, described
Top cover 2 is equipped with repairing mouth 3；The supporting element 4 is uniformly set to the side wall of the bellows 1；
Supporting element 4 described in every group includes screw rod 4.1 and two support plates 4.2, the screw thread rotation side at 4.1 both ends of screw rod
To on the contrary, opening up cambered opening corresponding with 1 caliber of bellows in the support plate 4.2；
The support plate 4.2 of one of supporting element 4 described in every group is set to two foldable wrinkles of described 1 one end of bellows
Gap between piece, another described support plate 4.2 are set to described state between two foldable wrinkle pieces of 1 other end of bellows
Gap, the opening of the support plate 4.2 is bonded setting with the bellows 1；Two supports of supporting element 4 described in every group
It is spirally connected between plate 4.2 by screw rod 4.1, is equipped with handle in one end of the screw rod 4.1 and is inserted into hole 4.3.
As a kind of specific embodiment, supporting element 4 can be fixed on bellows 1, i.e., the described support plate 4.2 with it is described
Bellows 1 is fixedly connected；Supporting element 4 can also use the structure seperated with bellows 1, i.e., as shown in figure 3, including two groups of supports
One end of part 4, opposite two support plate 4.2 of supporting element 4 described in two groups is hinged, and the other end is flexibly connected, and can pass through spiral shell
Bolt is spirally connected.
The utility model is mounted on current transformer by ring flange 5, and the utility model is in repairing operation, it is only necessary to revolve
Expander can be propped up to the length needed by turning screw rod 4.1, and screw rod 4.1 is reversely rotated after repairing operation, restores expander
Length.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of oil-immersed current transformer expander, which is characterized in that it includes bellows, top cover, repairing mouth and at least two
Group supporting element, one end of the bellows are equipped with ring flange, and the other end sealing cover of the bellows is equipped with the top cover, in institute
Top cover is stated equipped with repairing mouth；The supporting element is uniformly set to the side wall of the bellows；
Supporting element described in every group includes screw rod and two support plates, and the rotation direction of thread of the screw both end is on the contrary, the branch
Cambered opening corresponding with the bellows caliber is opened up on fagging；
One support plate of supporting element described in every group is set between two foldable wrinkle pieces of described bellows one end
Gap, another described support plate is set to the gap stated between two foldable wrinkle pieces of the bellows other end, described
The opening of support plate is bonded setting with the bellows；Pass through screw rod spiral shell between two support plates of supporting element described in every group
It connects.
2. a kind of oil-immersed current transformer expander according to claim 1, which is characterized in that the support plate and institute
Bellows is stated to be fixedly connected.
3. a kind of oil-immersed current transformer expander according to claim 1, which is characterized in that it includes two groups of supports
One end of part, opposite two support plate of supporting element described in two groups is hinged, and the other end is flexibly connected.
4. a kind of oil-immersed current transformer expander according to claim 3, which is characterized in that supporting element described in two groups
Opposite two support plate one end it is hinged, the other end is spirally connected by bolt.
5. a kind of oil-immersed current transformer expander according to claim 1, which is characterized in that the one of the screw rod
End is equipped with handle and is inserted into hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115775.3U CN208478087U (en) | 2018-07-12 | 2018-07-12 | A kind of oil-immersed current transformer expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115775.3U CN208478087U (en) | 2018-07-12 | 2018-07-12 | A kind of oil-immersed current transformer expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208478087U true CN208478087U (en) | 2019-02-05 |
Family
ID=65210784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821115775.3U Expired - Fee Related CN208478087U (en) | 2018-07-12 | 2018-07-12 | A kind of oil-immersed current transformer expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208478087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176730A (en) * | 2019-06-04 | 2019-08-27 | 国网北京市电力公司 | Oil compensating tool and expander fixed structure with it |
| CN111667982A (en) * | 2020-06-08 | 2020-09-15 | 广东电网有限责任公司 | Oil supplementing tool and expander fixing structure |
| CN111856381A (en) * | 2020-07-27 | 2020-10-30 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Disassembling and defect checking method of oil-immersed upright current transformer |
-
2018
- 2018-07-12 CN CN201821115775.3U patent/CN208478087U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176730A (en) * | 2019-06-04 | 2019-08-27 | 国网北京市电力公司 | Oil compensating tool and expander fixed structure with it |
| CN111667982A (en) * | 2020-06-08 | 2020-09-15 | 广东电网有限责任公司 | Oil supplementing tool and expander fixing structure |
| CN111667982B (en) * | 2020-06-08 | 2021-11-16 | 广东电网有限责任公司 | Oil supplementing tool and expander fixing structure |
| CN111856381A (en) * | 2020-07-27 | 2020-10-30 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Disassembling and defect checking method of oil-immersed upright current transformer |
| CN111856381B (en) * | 2020-07-27 | 2022-04-22 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Disassembling and defect checking method of oil-immersed upright current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 Termination date: 20190712 |