CN203983004U - A kind of novel large transformer high-voltage bushing - Google Patents
A kind of novel large transformer high-voltage bushing Download PDFInfo
- Publication number
- CN203983004U CN203983004U CN201420459902.7U CN201420459902U CN203983004U CN 203983004 U CN203983004 U CN 203983004U CN 201420459902 U CN201420459902 U CN 201420459902U CN 203983004 U CN203983004 U CN 203983004U
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- China
- Prior art keywords
- junction block
- conductive head
- ring
- sealing
- pigtail splice
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of novel large transformer high-voltage bushing, comprise conductive head, junction block, pigtail splice and sealing ring, pigtail splice is threaded with conductive head through the inner chamber of junction block, the middle part of pigtail splice is rotary with setscrew nut, between setscrew nut and pigtail splice, be equipped with alignment pin, conductive head and junction block contact-making surface are respectively equipped with corresponding seal groove, sealing ring is located in the seal groove of conductive head and junction block, conductive head and junction block outside are respectively equipped with scrobicular ring and lower concave ring, sealing shroud is sleeved on scrobicular ring and lower concave ring, conductive head and junction block pass through bolted, the utility model can extend seal durability, guarantee the sealing effectiveness of seal, avoid rainwater to enter initiation equipment fault, improved the reliability of equipment.
Description
Technical field
The utility model relates to a kind of transformer high-voltage bushing, especially a kind of novel large transformer high-voltage bushing.
Background technology
Along with the raising of line voltage grade, high-power transformer is widely adopted in electrical network.The bushing of high-power transformer is as high-voltage connection insulation against ground and holder, and its important function is known together and applies by people.High-power transformer bushing is commonly called as " by army cap ", is that between transformer inside and outside, electric energy exchange must, through part, be the main channel of transformer current.The necessary device of transformer oil and extraneous seal isolation in it or transformer, for bushing top provides sealing, insulating oil in transformer body is hedged off from the outer world, prevents that the insulating oil of transformer inside from flowing to outside, also can prevent that outside moisture and air etc. from entering transformer body simultaneously.
The bushing of prior art is because conductive head and junction block still exist larger gap after tightening, in long-play, under the irradiation of sunlight and rainwater soak, the easy Hardening crack of sealing ring, lost sealing function, rainwater easily enters from conductive head, may cause equipment fault.
Summary of the invention
The purpose of this utility model is just to provide a kind of novel large transformer high-voltage bushing, solves problems of the prior art.
The purpose of this utility model is achieved through the following technical solutions: a kind of novel large transformer high-voltage bushing, comprise conductive head, junction block, pigtail splice and sealing ring, pigtail splice is threaded with conductive head through the inner chamber of junction block, the middle part of pigtail splice is rotary with setscrew nut, between setscrew nut and pigtail splice, be equipped with alignment pin, conductive head and junction block contact-making surface are respectively equipped with corresponding seal groove, sealing ring is located in the seal groove of conductive head and junction block, conductive head and junction block outside are respectively equipped with scrobicular ring and lower concave ring, sealing shroud is sleeved on scrobicular ring and lower concave ring, conductive head and junction block pass through bolted.
Further, described upper scrobicular ring and the degree of depth of lower concave ring and the wall thickness of sealing shroud are suitable, make conductive head mutually concordant with the outer surface of sealing shroud with junction block.
Further, junction block is provided with boss, and conductive head is provided with scrobicular ring, and the scrobicular ring of the boss of junction block and electric body head is suitable, and the seal groove of line seat is located on boss, and the seal groove of conductive head is located in scrobicular ring.
The utlity model has following beneficial effect:
The utility model conductive head and junction block outside are respectively equipped with scrobicular ring and lower concave ring, sealing shroud is sleeved on scrobicular ring and lower concave ring, sealing shroud shelters from sealing ring completely, make sealing ring avoid solar radiation, rainwater immersion, effectively slow down sealing ring Hardening crack, avoid rainwater to enter initiation equipment fault, the utility model can extend seal durability, guarantee the sealing effectiveness of seal, improve the reliability of transformer.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, conductive head 1, pigtail splice 2, bolt 3, sealing shroud 4, junction block 5, alignment pin 7, setscrew nut 8, scrobicular ring 9, boss 10, sealing ring 11, upper scrobicular ring 12, lower concave ring 13.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in the figure, a kind of novel large transformer high-voltage bushing, comprise conductive head 1, junction block 5, pigtail splice 2 and sealing ring 11, pigtail splice 2 is threaded with conductive head 1 through the inner chamber of junction block 5, the middle part of pigtail splice 2 is rotary with setscrew nut 8, 2 of setscrew nut 8 and pigtail splices are equipped with alignment pin 7, conductive head 1 and junction block 5 contact-making surfaces are respectively equipped with corresponding seal groove, sealing ring 11 is located in the seal groove of conductive head and junction block, conductive head and junction block outside are respectively equipped with scrobicular ring 12 and lower concave ring 13, sealing shroud 4 is sleeved on scrobicular ring 12 and lower concave ring 13, conductive head 1 and junction block 5 are fastening by bolt 3.
Further, the wall thickness of described upper scrobicular ring 12 and the degree of depth of lower concave ring 13 and sealing shroud 4 is suitable, makes conductive head 1 mutually concordant with the outer surface of sealing shroud 4 with junction block 5.
Further, junction block is provided with boss 10, and conductive head is provided with scrobicular ring 9, and the scrobicular ring of the boss of junction block and electric body head is suitable, and the seal groove of line seat is located on boss 10, and the seal groove of conductive head is located in scrobicular ring 9.
Conductive head and junction block outside are respectively equipped with scrobicular ring and lower concave ring, sealing shroud is sleeved on scrobicular ring and lower concave ring, and sealing shroud shelters from sealing ring completely, makes sealing ring avoid solar radiation, rainwater immersion, effectively slow down sealing ring Hardening crack, avoid rainwater to enter initiation equipment fault.Described upper scrobicular ring and the degree of depth of lower concave ring and the wall thickness of sealing shroud are suitable, make conductive head mutually concordant with the outer surface of sealing shroud with junction block, and structural strength is more firm, and appearance is more attractive in appearance.The boss of junction block and the scrobicular ring of conductive head are suitable, the seal groove of line seat is located on boss, and the seal groove of conductive head is located in scrobicular ring, also makes sealing ring be sheltered from completely, the further reliability of raising equipment is convenient to the accurate location of conductive head and junction block simultaneously.
The utility model can extend seal durability, guarantees the sealing effectiveness of seal, avoids rainwater to enter initiation equipment fault, has improved the reliability of equipment.
Above-described, be only preferred embodiment of the present utility model, can not limit the scope that this practicality is implemented, every equalization of doing according to the utility model claim changes, and all should still belong in the scope that the utility model contains.
Claims (3)
1. a novel large transformer high-voltage bushing, comprise conductive head (1), junction block (5), pigtail splice (2) and sealing ring (11), it is characterized in that: pigtail splice (2) is threaded with conductive head (1) through the inner chamber of junction block (5), the middle part of pigtail splice (2) is rotary with setscrew nut (8), between setscrew nut (8) and pigtail splice (2), be equipped with alignment pin (7), conductive head (1) and junction block (5) contact-making surface are respectively equipped with corresponding seal groove, sealing ring (11) is located in the seal groove of conductive head and junction block, conductive head and junction block outside are respectively equipped with scrobicular ring (12) and lower concave ring (13), sealing shroud (4) is sleeved on scrobicular ring (12) and lower concave ring (13), conductive head (1) and junction block (5) are fastening by bolt (3).
2. a kind of novel large transformer high-voltage bushing according to claim 1, it is characterized in that: the wall thickness of described upper scrobicular ring (12) and the degree of depth of lower concave ring (13) and sealing shroud (4) is suitable, make conductive head (1) mutually concordant with the outer surface of sealing shroud (4) with junction block (5).
3. a kind of novel large transformer high-voltage bushing according to claim 1 and 2, it is characterized in that: junction block is provided with boss (10), conductive head is provided with scrobicular ring (9), the scrobicular ring of the boss of junction block and electric body head is suitable, it is upper that the seal groove of line seat is located at boss (10), and the seal groove of conductive head is located in scrobicular ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459902.7U CN203983004U (en) | 2014-08-15 | 2014-08-15 | A kind of novel large transformer high-voltage bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459902.7U CN203983004U (en) | 2014-08-15 | 2014-08-15 | A kind of novel large transformer high-voltage bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983004U true CN203983004U (en) | 2014-12-03 |
Family
ID=51980433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420459902.7U Expired - Fee Related CN203983004U (en) | 2014-08-15 | 2014-08-15 | A kind of novel large transformer high-voltage bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983004U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548859A (en) * | 2016-06-28 | 2017-03-29 | 搏世因（北京）高压电气有限公司 | Plug-in pigtail splice |
| CN107123530A (en) * | 2017-05-18 | 2017-09-01 | 平顶山市华安电气有限公司 | A kind of melt pit installing type transformer |
| WO2019144293A1 (en) * | 2018-01-23 | 2019-08-01 | Abb Schweiz Ag | A sealing arrangement for a bushing and a bushing with such a sealing arrangement |
-
2014
- 2014-08-15 CN CN201420459902.7U patent/CN203983004U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106548859A (en) * | 2016-06-28 | 2017-03-29 | 搏世因（北京）高压电气有限公司 | Plug-in pigtail splice |
| CN107123530A (en) * | 2017-05-18 | 2017-09-01 | 平顶山市华安电气有限公司 | A kind of melt pit installing type transformer |
| WO2019144293A1 (en) * | 2018-01-23 | 2019-08-01 | Abb Schweiz Ag | A sealing arrangement for a bushing and a bushing with such a sealing arrangement |
| KR20200101438A (en) | 2018-01-23 | 2020-08-27 | 에이비비 파워 그리즈 스위처랜드 아게 | Sealing arrangements for bushings and bushings having such sealing arrangements |
| CN111801753A (en) * | 2018-01-23 | 2020-10-20 | Abb电网瑞士股份公司 | Sealing device for a bushing and bushing having such a sealing device |
| US11769611B2 (en) | 2018-01-23 | 2023-09-26 | Hitachi Energy Switzerland Ag | Sealing arrangement for a bushing and a bushing with such a sealing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141203 Termination date: 20170815 |