CN202454407U - Transformer copper pipe lead with internal cooling function - Google Patents
Transformer copper pipe lead with internal cooling function Download PDFInfo
- Publication number
- CN202454407U CN202454407U CN2012200524728U CN201220052472U CN202454407U CN 202454407 U CN202454407 U CN 202454407U CN 2012200524728 U CN2012200524728 U CN 2012200524728U CN 201220052472 U CN201220052472 U CN 201220052472U CN 202454407 U CN202454407 U CN 202454407U
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- China
- Prior art keywords
- copper pipe
- pipe lead
- lead
- wire
- transformer
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Abstract
The utility model relates to a transformer copper pipe lead with an internal cooling function, comprising lead connectors which are fixedly arranged on both ends of the copper pipe lead, and crepe paper which is packed in the middle part of the copper pipe lead; the copper pipe lead is in an internal cooling structure; cooling oil flow is circulated in the copper pipe lead; both ends of the copper pipe lead are respectively provided with a plurality of oil inlet and outlet notches; bandage and crepe paper are sequentially packed on both ends of the copper pipe lead and the outer sides of the lead connectors from inside to outside; a plurality of layers of insulating cylinders are sleeved outside the crepe paper; and a plurality of stays are arranged between the crepe paper and the insulating cylinders and between two adjacent layers of insulating cylinders. The transformer copper pipe lead with the internal cooling function has the beneficial effects that the structure is simple, the operation is convenient, the cooling effect is good, the operation reliability of a transformer is improved, meanwhile the cross sectional area of the transformer lead can be reduced, the used amount of raw materials is saved, the temperature rise of the lead to the oil is ensured, and the design of high-voltage and high-capacity transformer leads is facilitated.
Description
Technical field
The invention belongs to the transformer high-voltage lead-in wire, relate to a kind of inner colded transformer copper pipe lead-in wire of being with.
Background technology
Present stage; The high-voltage connection of 110kV level and above strong current transformer is too thick in order to ensure its outside insulation of being wrapped of electric property; This situation copper pipe radiating effect under the situation of same cross-sectional is relatively poor, and its copper pipe of transformer high for electric pressure and that electric current is big guarantees the temperature rise of oil is difficult; In order to satisfy the temperature rise requirement, need add the large copper pipe net sectional area, reduce current density, caused material consumption increase, kelvin effect increase and effective insulation distance to reduce for this reason.
Summary of the invention
The present invention is in order to remedy the deficiency of prior art, a kind of simple in structure, easy to operate, good cooling results is provided, can effectively reduces material cost, improved the inner colded transformer copper pipe lead-in wire of being with of transformer operational reliability.
The present invention realizes through following technical scheme:
The inner colded transformer copper pipe lead-in wire of being with of the present invention; Comprise the pigtail splice, the crimped paper of wrapping in the middle part of the copper pipe lead-in wire that are fixed on copper pipe lead-in wire two ends; It is characterized in that: the copper pipe lead-in wire adopts inner cooling structure; Circulation has cold oil to flow in the copper pipe lead-in wire, and the both ends of copper pipe lead-in wire have several turnover oil groove mouths respectively, and wrap up from inside to outside successively in the two ends of copper pipe lead-in wire and the pigtail splice outside has binding strap and crimped paper; Crimped paper outside is with the several layers insulating cylinder, between crimped paper and the insulating cylinder, between the adjacent two layers insulating cylinder some bracing bars are arranged.
The inner colded transformer copper pipe lead-in wire of being with of the present invention; Preferred version does; 4 turnover oil groove mouths have along the circumferential direction been opened at two ends at copper pipe lead-in wire respectively, pass in and out oily slot opening 5 ㎜, long 20 ㎜, and adjacent two turnover oil groove mouths are along copper pipe length direction 5 ㎜ that stagger each other.
The invention has the beneficial effects as follows; Simple in structure, easy to operate, good cooling results, the transformer operational reliability that improved can reduce the sectional area of transformer lead simultaneously, have practiced thrift the raw material consumption; Guaranteed the temperature rise of lead-in wire, be beneficial to design high voltage, high-power transformer lead-in wire oil.This design is mainly used in 110kV level and above strong current transformer.
Description of drawings
Fig. 1 is traditional high-pressure copper pipe pin configuration figure.
Fig. 2 is high-pressure copper pipe pin configuration figure of the present invention.
Fig. 3 is the A-A partial sectional view of Fig. 2.
Fig. 4 is high-pressure copper pipe lead-in wire of the present invention two ends expanded view (having turnover oil groove mouth).
Among the figure: 1 copper pipe lead-in wire, 2 pigtail splices, 3 crimped papers, 4 high Netowrk tapes, 5 insulating cylinders, 6 stays, 7 binding straps, 8 turnover oil groove mouths.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.
The inner colded transformer copper pipe lead-in wire of being with of the present invention; Comprise that being fixed on copper pipe goes between the pigtail splice 2, wrapping at 1 two ends at the crimped paper 3 at copper pipe lead-in wire middle part; The copper pipe lead-in wire adopts inner cooling structure; Circulation has cold oil to flow in the copper pipe lead-in wire, and the both ends of copper pipe lead-in wire have several turnover oil groove mouths 8 respectively, and wrap up from inside to outside successively in the two ends of copper pipe lead-in wire and the pigtail splice outside has binding strap 7 and crimped paper; Crimped paper outside is with several layers insulating cylinder 5, between crimped paper and the insulating cylinder, some bracing bars 6 are arranged between the adjacent two layers insulating cylinder.
4 turnover oil groove mouths 8 have along the circumferential direction been opened at two ends at copper pipe lead-in wire respectively, pass in and out oily slot opening 5 ㎜, long 20 ㎜, and adjacent two turnover oil groove mouths are along copper pipe length direction 5 ㎜ that stagger each other.Turnover oil groove mouth length direction is consistent with copper pipe wire length direction.
Guarantee under the situation that reduces the copper pipe net sectional area as much as possible less that like this transformer oil can get into copper pipe smoothly and circulate; Utilized thin paper tube small oil gap theoretical simultaneously fully at this place; Add stay, molded insulator structure, guaranteed this place's dielectric strength effectively.Under the prerequisite of identical copper pipe lead-in wire size, calculate through formula and to show, adopted inner cooling after its current capacity be: if copper pipe lead-in wire horizontal positioned can improve about 1.25 times when using, if vertical the placement when using of copper pipe lead-in wire can be improved about 1.55 times; And that copper pipe thickness is thin more, more little its current capacity of diameter improves is big more.
The inner colded transformer copper pipe lead-in wire of being with of the present invention comprises lead-in wire copper pipe 1, pigtail splice 2, crimped paper 3, high Netowrk tape 4, molded insulator 5 (being insulating cylinder), stay 6 and binding strap 7.The both ends of copper pipe lead-in wire have turnover oil groove mouth respectively, wrap up based on thin paper tube small oil gap theory simultaneously, are guaranteeing that oily stream can successfully be circulated in copper pipe.
The high-voltage connection copper pipe inside of transformer was by being airtight air originally; Become the high voltage lead copper pipe and adopted the inner type of cooling; Can under guaranteeing to go between, reduce the net sectional area of copper pipe greatly to the prerequisite of oily temperature rise; Practiced thrift material cost, avoid the inner occluded air of copper pipe lead-in wire when transformer move because the damage of expanding with heat and contract with cold and being caused to going between.
Claims (2)
1. be with inner colded transformer copper pipe lead-in wire for one kind; Comprise the pigtail splice (2), the crimped paper (3) of wrapping in the middle part of the copper pipe lead-in wire that are fixed on copper pipe lead-in wire two ends; It is characterized in that: the copper pipe lead-in wire adopts inner cooling structure; Circulation has cold oil to flow in the copper pipe lead-in wire, and the both ends of copper pipe lead-in wire have several turnover oil groove mouths (8) respectively, and wrap up from inside to outside successively in the two ends of copper pipe lead-in wire and the pigtail splice outside has binding strap ⑺ and crimped paper; Crimped paper outside is with several layers insulating cylinder (5), between crimped paper and the insulating cylinder, some bracing bars (6) are arranged between the adjacent two layers insulating cylinder.
2. the inner colded transformer copper pipe lead-in wire of being with according to claim 1; It is characterized in that: 4 turnover oil groove mouths (8) have along the circumferential direction been opened at the two ends at the copper pipe lead-in wire respectively; Pass in and out oily slot opening 5 ㎜, long 20 ㎜, and adjacent two turnover oil groove mouths are along copper pipe length direction 5 ㎜ that stagger each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200524728U CN202454407U (en) | 2012-02-18 | 2012-02-18 | Transformer copper pipe lead with internal cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200524728U CN202454407U (en) | 2012-02-18 | 2012-02-18 | Transformer copper pipe lead with internal cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202454407U true CN202454407U (en) | 2012-09-26 |
Family
ID=46870249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200524728U Expired - Fee Related CN202454407U (en) | 2012-02-18 | 2012-02-18 | Transformer copper pipe lead with internal cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202454407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369537A (en) * | 2017-07-18 | 2017-11-21 | 鹤壁市华通分析仪器有限公司 | One kind forces the hydronic high-power high-frequency transformer refrigeration system of interior guiding oil |
-
2012
- 2012-02-18 CN CN2012200524728U patent/CN202454407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369537A (en) * | 2017-07-18 | 2017-11-21 | 鹤壁市华通分析仪器有限公司 | One kind forces the hydronic high-power high-frequency transformer refrigeration system of interior guiding oil |
| CN107369537B (en) * | 2017-07-18 | 2024-04-16 | 鹤壁市华通分析仪器有限公司 | High-power high-frequency transformer refrigerating system with forced internal guiding oil circulation cooling function |
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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 |
Granted publication date: 20120926 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |