CN103137292A - Intermediate transformer - Google Patents
Intermediate transformer Download PDFInfo
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- CN103137292A CN103137292A CN 201110332544 CN201110332544A CN103137292A CN 103137292 A CN103137292 A CN 103137292A CN 201110332544 CN201110332544 CN 201110332544 CN 201110332544 A CN201110332544 A CN 201110332544A CN 103137292 A CN103137292 A CN 103137292A
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- pressing
- nail pressing
- nail
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Abstract
The invention discloses an intermediate transformer and relates to the technical field of power transmission and distribution. The intermediate transformer comprises a transformer body which comprises two upper clamp pieces and three iron cores. Upper ends of the three iron cores are respectively arranged between the two upper clamping pieces. A coil is respectively arranged outside each iron core. A group of pressing rings which are arranged in pairs are respectively arranged above each coil, and each pressing ring is respectively arranged below the corresponding upper clamping piece. At least three connecting plates are respectively connected to the outer side of each upper clamping piece. At least one pressing nail is respectively arranged on each connecting plate in a penetrating way. Two nuts are respectively in threaded connection on each pressing nail. The two nuts on each pressing nail are respectively arranged at the upper side and the lower side of the corresponding connecting plate. A pressing nail gasket is arranged below each pressing nail. The lower end of each pressing nail respectively and tightly abuts against each pressing nail gasket. A pressing block is respectively arranged below each pressing nail gasket. Each pressing block is respectively arranged above the corresponding pressing ring. According to the intermediate transformer, due to the fact that transformer body of the intermediate transformer adopts the pressing plates and the pressing nails, axial pressing of the coil is enabled to be free of deformation.
Description
Technical field
The present invention relates to the technical field of power transmission and distribution, relate in particular to the structure of intermediate transformer.
Background technology
At present, intermediate transformer comprises the device body, and the device body comprises two upper clamping pieces and three iron cores, and three upper ends unshakable in one's determination arrange respectively between two upper clamping pieces, and each is unshakable in one's determination outer arranges respectively coil, three coils, i.e. low-voltage coil, high-tension coil, voltage regulation coil.Every group of coil top arranges respectively one group of trim ring arranged in pairs, and every group of trim ring arranged in pairs is separately positioned on corresponding coil both sides, and each trim ring is separately positioned on the below of corresponding upper clamping piece.Because coil does not have servicing unit, yielding when pressurized.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, provide that a kind of coil is stable, the intermediate transformer of non-loosening between lamination.
the object of the present invention is achieved like this: intermediate transformer, comprise the device body, the device body comprises two upper clamping pieces and three iron cores, three upper ends unshakable in one's determination arrange respectively between two upper clamping pieces, each outer coil that arranges respectively unshakable in one's determination, one group of trim ring arranged in pairs is set respectively above every group of coil, every group of trim ring arranged in pairs is separately positioned on corresponding coil both sides, and each trim ring is separately positioned on the below of corresponding upper clamping piece, the outside of described every upper clamping piece connects respectively at least three connecting plates, place respectively at least one nail pressing on every connecting plate, two nuts are threaded respectively on every nail pressing, two nuts on every nail pressing are separately positioned on the both sides up and down of corresponding connecting plate, the below of every nail pressing arranges respectively the nail pressing packing ring, the lower end of every nail pressing pushes against respectively the nail pressing packing ring, the below of each nail pressing packing ring arranges respectively briquetting, every briquetting is separately positioned on the top of corresponding trim ring.
The outside of each iron core of the present invention is symmetrical arranged two stainless steel arm-ties, and every iron core is connected by the epoxy fixed band respectively with corresponding stainless steel arm-tie.
Device body of the present invention adopts pressing plate nail pressing device, thereby makes the axial compression of coil indeformable, and width has guaranteed loosening phenomenon between lamination to adopting special steel formability take-up device to make one-tenth unshakable in one's determination as a whole.The present invention is used for the ultra high voltage hall of oversize transformer and extreme high voltage reactor manufacturing project, it can satisfy the single-phase 1000kV/1500MVA power transformer of three-phase 500kV/1500MVA, 1000kV/400MVA parallel single-phase reactor and ± routine test of 800kV/400MVA converter transformer, type approval test, other special tests except the test of short circuit tolerance.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the end view of Fig. 1.
Fig. 3 is structural representation unshakable in one's determination.
Fig. 4 is the end view of Fig. 3.
In figure, 1 device body, 2 upper clamping pieces, 3 briquettings, 4 nail pressing packing rings, 5 nuts, 6 nail pressings, 7 connecting plates, 8 trim rings, 9 iron cores, 10 coils, 11 arm-ties, 12 epoxy fixed bands.
Embodiment
As shown in Figure 1, 2, be intermediate transformer, comprise device body 1, device body 1 comprises two upper clamping pieces 2 and three iron cores 9, three iron core 9 upper ends arrange respectively between two upper clamping pieces 2, each 9 outer coil 10 that arrange respectively unshakable in one's determination, and every group of coil 10 tops arrange respectively one group of trim ring 8 arranged in pairs, every group of trim ring 8 arranged in pairs is separately positioned on corresponding coil 10 both sides, and each trim ring 8 is separately positioned on the below of corresponding upper clamping piece 2.The outside of every upper clamping piece 2 connects respectively three connecting plates 7, place respectively two nail pressings 6 on every connecting plate 7, two nuts 5 are threaded respectively on every nail pressing 6, two nuts 5 on every nail pressing 6 are separately positioned on the both sides up and down of corresponding connecting plate 7, the below of every nail pressing 6 arranges respectively nail pressing packing ring 4, the lower end of every nail pressing 6 pushes against respectively nail pressing packing ring 4, and the below of each nail pressing packing ring 4 arranges respectively briquetting 3, and every briquetting 3 is separately positioned on the top of corresponding trim ring 8.
As shown in Fig. 3,4, the outside of each iron core 9 is symmetrical arranged two stainless steel arm-ties 11, and every iron core 9 is connected by epoxy fixed band 12 respectively with corresponding stainless steel arm-tie 11.
Claims (2)
1. intermediate transformer, comprise the device body, the device body comprises two upper clamping pieces and three iron cores, three upper ends unshakable in one's determination arrange respectively between two upper clamping pieces, each outer coil that arranges respectively unshakable in one's determination, one group of trim ring arranged in pairs is set respectively above every group of coil, every group of trim ring arranged in pairs is separately positioned on corresponding coil both sides, and each trim ring is separately positioned on the below of corresponding upper clamping piece, it is characterized in that: the outside of described every upper clamping piece connects respectively at least three connecting plates, place respectively at least one nail pressing on every connecting plate, two nuts are threaded respectively on every nail pressing, two nuts on every nail pressing are separately positioned on the both sides up and down of corresponding connecting plate, the below of every nail pressing arranges respectively the nail pressing packing ring, the lower end of every nail pressing pushes against respectively the nail pressing packing ring, the below of each nail pressing packing ring arranges respectively briquetting, every briquetting is separately positioned on the top of corresponding trim ring.
2. intermediate transformer according to claim 1, it is characterized in that: the outside of described each iron core is symmetrical arranged two stainless steel arm-ties, and every iron core is connected by the epoxy fixed band respectively with corresponding stainless steel arm-tie.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110332544 CN103137292A (en) | 2011-10-28 | 2011-10-28 | Intermediate transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110332544 CN103137292A (en) | 2011-10-28 | 2011-10-28 | Intermediate transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103137292A true CN103137292A (en) | 2013-06-05 |
Family
ID=48496977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110332544 Pending CN103137292A (en) | 2011-10-28 | 2011-10-28 | Intermediate transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103137292A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900386A (en) * | 2015-06-26 | 2015-09-09 | 镇江天力变压器有限公司 | Press nail structure of epoxy cast dry-type transformer |
| CN108711495A (en) * | 2018-06-20 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of electrical equipment and its damping compression spring unit |
-
2011
- 2011-10-28 CN CN 201110332544 patent/CN103137292A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900386A (en) * | 2015-06-26 | 2015-09-09 | 镇江天力变压器有限公司 | Press nail structure of epoxy cast dry-type transformer |
| CN108711495A (en) * | 2018-06-20 | 2018-10-26 | 河南森源电气股份有限公司 | A kind of electrical equipment and its damping compression spring unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |