CN203242476U - Transformer bushing - Google Patents
Transformer bushing Download PDFInfo
- Publication number
- CN203242476U CN203242476U CN 201320087205 CN201320087205U CN203242476U CN 203242476 U CN203242476 U CN 203242476U CN 201320087205 CN201320087205 CN 201320087205 CN 201320087205 U CN201320087205 U CN 201320087205U CN 203242476 U CN203242476 U CN 203242476U
- Authority
- CN
- China
- Prior art keywords
- docking section
- extension
- transformer
- double seal
- shell
- 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 claims abstract description 9
- 238000003032 molecular docking Methods 0.000 claims description 35
- 210000001503 joint Anatomy 0.000 abstract 5
- 230000005283 ground state Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
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Abstract
The utility model belongs to the technical field of power transformers and particularly relates to a transformer bushing. The transformer bushing comprises a grounding post, a dual-sealing piece, a fixing piece and an outer shell. The dual-sealing piece comprises a first butt joint portion, a second butt joint portion and a seal ring, wherein the seal ring is sleeved on the first butt joint portion and the second butt joint portion, the grounding post is arranged in the dual-sealing piece, the grounding post is fixedly connected with the dual-sealing piece through the fixing piece, and the outer shell is connected to the second butt joint portion of the dual-sealing piece in a buckled mode. The transformer bushing has the advantages of thoroughly eliminating potential safety hazards in the prior art, being capable of ensuring that an end screen of the transformer bushing is always in a good and reliable grounding state even when detaching operation and connecting operation are conducted in field tests, thereby improving safety running of a transformer and power supply reliability of the transformer.
Description
Technical field
The utility model belongs to the power transformer technical field, relates in particular to a kind of bushing shell for transformer.
Background technology
Bushing shell for transformer is the outgoing line device of the high and low pressure of transformer inside being guided to the fuel tank outside, and bushing shell for transformer is as lead-in wire insulation over the ground, the effect of also undertaking anchor leg.Therefore, it must have the electric and mechanical strength of regulation.According to statistics, the defective of bushing shell for transformer with use in occur unusual in, casing joint is overheated, leakage of oil, medium or oily dielectric loss exceeds standard and bottom shielding of bushing loose contact fault occupies the prostatitis.Particularly Transformer Bushing Tap imperfect earth causes end shield to discharge over the ground, and near the insulant burning out seriously also the bushing explosion accident can occur.
Summary of the invention
The purpose of this utility model is to provide a kind of for above-mentioned the deficiencies in the prior art and be convenient to installing/dismounting, use well and the bushing shell for transformer of ground state reliably.
Technical solution of the present utility model is: bushing shell for transformer comprises earthing rod, double seal, fixture and shell.Earthing rod comprises base portion and extension, and extension is arranged at an end of base portion, and extension is made external screw thread outward, and the extension top makes the first screw; Double seal comprises main part, be arranged at the first docking section of main part one end, be arranged at the main part other end the second docking section, run through the through hole of double seal and be sheathed on the first docking section and the sealing ring of the second docking section, the first docking section and the second docking section outer setting external screw thread; Fixture comprises the first nut, the second nut and screw; Shell is a cylindrical shell, and its opening one end arranges internal thread.The extension of earthing rod is installed in the through hole of double seal, the first nut and the second nut are installed on the extension of earthing rod, screw fastening is in the screw of extension, thereby earthing rod is fixedly connected with double seal, and the internal thread of shell cooperates assembling with the external screw thread of the second docking section of double seal.
Preferably, the base portion of ground post is a column, and base portion arranges the second screw with respect to the other end of extension.
Preferably, the first docking section of double seal and the second docking section are a hollow column.
Preferably, the first docking section overall diameter of double seal is less than the overall diameter of the second docking section.
The beneficial effects of the utility model are: the utility model has thoroughly been eliminated the potential safety hazard that in the past existed, even operation is torn, is connect in test open at the scene, can guarantee that also Transformer Bushing Tap often is in well, ground state reliably, thereby improve safe operation and the power supply reliability thereof of transformer.
Description of drawings
Fig. 1 is the utility model bushing shell for transformer assembling stereogram.
Fig. 2 is the utility model bushing shell for transformer stereogram that partly explodes.
Fig. 3 is the utility model bushing shell for transformer blast stereogram.
Fig. 4 is the earthing rod stereogram of the utility model bushing shell for transformer.
Among the figure: bushing shell for transformer 10, earthing rod 1, base portion 11, extension 12, the first screw 13, the second screw 14, double seal 2, main part 21, the first docking section 22, the second 23 ones of docking, through hole 24, sealing ring 25, fixture 3, the first nut 31, the second nut 32, screw 33, shell 4.
Embodiment
By reference to the accompanying drawings, the utility model is described further, sees also Fig. 1 to Fig. 4, bushing shell for transformer 10 comprises earthing rod 1, double seal 2, fixture 3 and shell 4.Earthing rod 1 comprises base portion 11 and extension 12, and extension 12 is arranged at an end of base portion 11, extension 12 outer making external screw threads, and extension 12 tops make the first screw 13; Double seal 2 comprises main part 21, be arranged at the first docking section 22 of main part 21 1 ends, be arranged at main part 21 other ends the second 23 ones of docking, run through the through hole 24 of double seal 2 and be sheathed on the sealing ring 25 of the first docking section 22 and the second docking section 23, the first docking section 22 and the second docking section 23 outer setting external screw threads, the first docking section 22 and second docking section 23 of double seal 2 are a hollow column, and the first docking section 22 overall diameters of double seal 2 are less than the overall diameter of the second docking section 23; Fixture 3 comprises the first nut 31, the second nut 32 and screw 33; Shell 4 is a cylindrical shell, and its opening one end arranges internal thread.The extension 12 of earthing rod 1 is installed in the through hole 24 of double seal 2, the first nut 31 and the second nut 32 are installed on the extension 12 of earthing rod 1, screw 33 is anchored in the screw 13 of extension 12, thereby earthing rod 1 is fixedly connected with double seal 2, and the internal thread of shell 4 cooperates assembling with the external screw thread of the second docking section 23 of double seal 2.
Consult Fig. 4, the base portion 11 of earthing rod 1 is a column, and base portion 11 arranges the second screw 14 with respect to the other end of extension 12.
Claims (2)
1. bushing shell for transformer, it is characterized in that: bushing shell for transformer comprises earthing rod, double seal, fixture and shell; Earthing rod comprises base portion and extension, and extension is arranged at an end of base portion, and extension is made external screw thread outward, and the extension top makes the first screw; Double seal comprises main part, be arranged at the first docking section of main part one end, be arranged at the main part other end the second docking section, run through the through hole of double seal and be sheathed on the first docking section and the sealing ring of the second docking section, the first docking section and the second docking section outer setting external screw thread; Fixture comprises the first nut, the second nut and screw; Shell is a cylindrical shell, and its opening one end arranges internal thread; The extension of earthing rod is installed in the through hole of double seal, the first nut and the second nut are installed on the extension of earthing rod, screw fastening is in the screw of extension, thereby earthing rod is fixedly connected with double seal, and the internal thread of shell cooperates assembling with the external screw thread of the second docking section of double seal.
2. bushing shell for transformer according to claim 1, it is characterized in that: the base portion of earthing rod is a column, base portion arranges the second screw with respect to the other end of extension.
3. bushing shell for transformer according to claim 1, it is characterized in that: the first docking section and second docking section of double seal are a hollow column.
4. bushing shell for transformer according to claim 3, it is characterized in that: the first docking section overall diameter of double seal is less than the overall diameter of the second docking section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087205 CN203242476U (en) | 2013-02-27 | 2013-02-27 | Transformer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320087205 CN203242476U (en) | 2013-02-27 | 2013-02-27 | Transformer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203242476U true CN203242476U (en) | 2013-10-16 |
Family
ID=49319745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320087205 Expired - Fee Related CN203242476U (en) | 2013-02-27 | 2013-02-27 | Transformer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203242476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810390A (en) * | 2016-04-06 | 2016-07-27 | 西安思坦电气技术有限公司 | Sleeve pipe end screen leading-out device of dry type transformer |
-
2013
- 2013-02-27 CN CN 201320087205 patent/CN203242476U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810390A (en) * | 2016-04-06 | 2016-07-27 | 西安思坦电气技术有限公司 | Sleeve pipe end screen leading-out device of dry type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20140227 |