CN209029189U - A kind of improved current transformer lamina tecti - Google Patents
A kind of improved current transformer lamina tecti Download PDFInfo
- Publication number
- CN209029189U CN209029189U CN201821864779.1U CN201821864779U CN209029189U CN 209029189 U CN209029189 U CN 209029189U CN 201821864779 U CN201821864779 U CN 201821864779U CN 209029189 U CN209029189 U CN 209029189U
- Authority
- CN
- China
- Prior art keywords
- lamina tecti
- mounting flange
- current transformer
- ontology
- internal thread
- 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
Links
- 238000007789 sealing Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a kind of improved current transformer lamina tectis, including lamina tecti ontology, lamina tecti ontology bottom end is detachably connected with the mounting flange on transformer housing top, wherein, mounting flange is round and close to its edge and is evenly arranged with multiple mounting holes along its circumferential direction, lamina tecti ontology bottom end is uniformly provided with multiple blind hole internal thread mounting holes close to its edge and along its circumferential direction, and the position of blind hole internal thread mounting hole and mounting hole is correspondingly arranged.The utility model will be changed to blind hole internal thread mounting hole to perforation on existing lamina tecti ontology, rainwater can be effectively avoided easily to be penetrated into sealing surface and seal groove from the thread gaps of nut, aoxidize seal groove and gas leakage, and then cause the SF6 gas water content inside mutual inductor exceeded, and influence its normal use.
Description
Technical field
The utility model relates to current transformer technical field, more particularly to a kind of improved current transformer
The improvement structure of lamina tecti.
Background technique
Electrical equipment 220kVSF6 current transformer passes through SF6 gas inside current transformer Inside coil and mutual inductor
Interaction, voltage is got higher or is lower to 220kV, product facility need to complete when putting into operation correlation test (resistance to pressure,
Leakproofness, water content), and the related data of product remains unchanged after long-term use.
Mutual inductor merges sealing in use, needing with the mounting flange on transformer housing top mutually to cover lamina tecti, with
Prevent the SF6 gas inside mutual inductor from leaking outside.But the structure of the lamina tecti of existing 220kV current transformer, there is also such as
Defect (referring to fig. 4) in lower two structures: 1. existing lamina tecti is using to wearing bolt and mounting flange fit sealing；②
In the two Gai Hehou, the edge of lamina tecti is flushed with the edge of mounting flange.And after long-term use, rainwater is easily from the spiral shell of nut
It is penetrated at line gap in sealing surface and seal groove, aoxidizes seal groove and gas leakage, and then cause in mutual inductor
The SF6 gas water content in portion is exceeded, and influences its normal use.
Therefore, how to provide one kind in wet condition, rainwater can be effectively prevent to penetrate into from the gap of nut close
The problem of improved current transformer lamina tecti in cover and seal groove is those skilled in the art's urgent need to resolve.
Utility model content
In view of this, the present invention provides one kind in wet condition, can effectively prevent seam of the rainwater from nut
The improved current transformer lamina tecti in sealing surface and seal groove is penetrated at gap.
To achieve the goals above, the utility model adopts the following technical solution:
A kind of improved current transformer lamina tecti, including lamina tecti ontology, lamina tecti ontology bottom end and mutual inductor
Mounting flange on housing tip is detachably connected, wherein mounting flange is round and close to its edge and circumferential equal along it
Even to be provided with multiple mounting holes, lamina tecti ontology bottom end is uniformly provided with multiple blind holes close to its edge and along its circumferential direction
The position of internal screw thread mounting hole, the blind hole internal thread mounting hole and the mounting hole is correspondingly arranged.
It can be seen via above technical scheme that compared with prior art, a kind of improved current transformer of the utility model
Lamina tecti will be changed to blind hole internal thread mounting hole to perforation on existing lamina tecti ontology, can effectively avoid rainwater easily from
It is penetrated at the thread gaps of nut in sealing surface and seal groove, aoxidizes seal groove and gas leakage, and then cause
SF6 gas water content inside mutual inductor is exceeded, and influences its normal use.
Further, the lamina tecti ontology is circle, and its outside diameter is greater than the outer diameter of the mounting flange.Top cover
Plate ontology can be used as " umbrella " of mounting flange, mounting flange can be protected not to be caught in the rain, and then avoid rainwater from screw thread
The water content of SF6 gas is penetrated into inside mutual inductor and influenced at gap.
Further, lamina tecti ontology bottom end offers annular groove close to its edge, and the mounting flange is set
It sets in the annular groove.Annular groove can further enhance the effect that mounting flange is not caught in the rain, and can guarantee
Lamina tecti ontology is firmly installed with mounting flange.
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 the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawing is a kind of structural schematic diagram of improved current transformer lamina tecti provided by the utility model.
Fig. 2 attached drawing is the structural schematic diagram of mounting flange.
Partial structural diagram when Fig. 3 attached drawing is lamina tecti ontology and mounting flange installation.
Partial structural diagram when Fig. 4 attached drawing is existing lamina tecti and mounting flange installation.
Wherein: 1- lamina tecti ontology, 11- blind hole internal thread mounting hole, 12- annular groove, 2- mounting flange, 21- installation
Hole.
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 making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to fig. 4, the structure of former lamina tecti, which uses, installs perforation and mounting flange, and the outer diameter of lamina tecti and installation
The outer diameter of flange is equal, and this structure easily leads to rainwater and penetrates into sealing surface from thread gaps, and leads to gas leakage.
Referring to Fig. 1-3, the utility model improves the structure of former lamina tecti, and new lamina tecti uses blind hole internal thread
Mounting hole and lamina tecti outer diameter are greater than mounting flange outer diameter (as having supportted on mutual inductor top umbrella), in case rainwater penetrates into sealing
In face, to solve gas leak phenomenon.
Concrete scheme is as follows:
A kind of improved current transformer lamina tecti, including lamina tecti ontology 1,1 bottom end of lamina tecti ontology and mutual inductor shell
Mounting flange 2 on body top is detachably connected, wherein mounting flange 2 is round and close to its edge and circumferential equal along it
Even to be provided with multiple mounting holes 21,1 bottom end of lamina tecti ontology is uniformly provided with multiple blind holes close to its edge and along its circumferential direction
Internal screw thread mounting hole 11, blind hole internal thread mounting hole 11 and the position of mounting hole 21 are correspondingly arranged.
In order to optimize above-mentioned technical proposal, lamina tecti ontology 1 is circle, and its outside diameter is greater than the outer of mounting flange 2
Diameter.
In order to optimize above-mentioned technical proposal, 1 bottom end of lamina tecti ontology offers annular groove 12 close to its edge, installation
Flange 2 is arranged in annular groove 12.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (3)
1. a kind of improved current transformer lamina tecti, including lamina tecti ontology (1), lamina tecti ontology (1) bottom end and mutually
Mounting flange (2) on sensor housing tip is detachably connected, wherein mounting flange (2) be round and close to its edge simultaneously
Multiple mounting holes (21) are evenly arranged with along its circumferential direction, which is characterized in that lamina tecti ontology (1) bottom end is close to its edge
And multiple blind hole internal thread mounting holes (11), the blind hole internal thread mounting hole (11) and the peace are uniformly provided with along its circumferential direction
The position of dress hole (21) is correspondingly arranged.
2. a kind of improved current transformer lamina tecti according to claim 1, which is characterized in that the lamina tecti ontology
It (1) is circle, and its outside diameter is greater than the outer diameter of the mounting flange (2).
3. a kind of improved current transformer lamina tecti according to claim 2, which is characterized in that the lamina tecti ontology
(1) bottom end offers annular groove (12) close to its edge, and the mounting flange (2) is arranged in the annular groove (12)
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864779.1U CN209029189U (en) | 2018-11-13 | 2018-11-13 | A kind of improved current transformer lamina tecti |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864779.1U CN209029189U (en) | 2018-11-13 | 2018-11-13 | A kind of improved current transformer lamina tecti |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029189U true CN209029189U (en) | 2019-06-25 |
Family
ID=66910510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821864779.1U Expired - Fee Related CN209029189U (en) | 2018-11-13 | 2018-11-13 | A kind of improved current transformer lamina tecti |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209029189U (en) |
-
2018
- 2018-11-13 CN CN201821864779.1U patent/CN209029189U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20190625 |