CN105097226A - Low temperature rise dry-type transformer - Google Patents
Low temperature rise dry-type transformer Download PDFInfo
- Publication number
- CN105097226A CN105097226A CN201510531979.XA CN201510531979A CN105097226A CN 105097226 A CN105097226 A CN 105097226A CN 201510531979 A CN201510531979 A CN 201510531979A CN 105097226 A CN105097226 A CN 105097226A
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- China
- Prior art keywords
- iron core
- determination
- unshakable
- low pressure
- low
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Regulation Of General Use Transformers (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention provides a low temperature rise dry-type transformer which comprises an iron core, an iron core fastening element and a support element, wherein the iron core is a five-step joint iron core, the iron core fastening element comprises a high-low voltage upper clamping element, a high-low voltage lower clamping element and an iron core clamping device, the five-step joint iron core is fixedly arranged between high-low voltage upper clamping element and the high-low voltage lower clamping element, the iron core clamping device is fixedly arranged on the high-low voltage upper clamping element and the high-low voltage lower clamping element and fixed at the upper end and the lower end of the iron core, the support element comprises an iron core stepping pad and a pull plate, the iron core stepping pad is arranged below the five-step joint iron core and the high-low voltage lower clamping element, and the pull plate is arranged between the iron core stepping pad and the iron core. In the low temperature rise dry-type transformer provided by the invention, the five-step joint iron core is adopted, low loss and small noise of the transformer are ensured, the process performance becomes better, the heat source of the iron core is reduced, the temperature rise of the transformer is reduced, and the service life of the transformer is prolonged.
Description
Technical field
The present invention relates to field transformer, particularly relate to a kind of low-temperature-rise dry-type transformer.
Background technology
Epoxy pouring type dry type variant distribution transformer can both meet the requirement of the energy-saving material-saving of current distribution system on stuctures and properties.Make comparisons with regard to the current transformer that can for select, the new change of epoxy pouring type dry type variant distribution transformer in operation and code have also been obtained the accreditation of more and more user.Due to open dry-type transformer structure existing, impact resistance is low, tolerance short-circuit strength is poor, moistureproof, anti-dust performance is poor and make the problems such as ageing of insulation because of corona discharge.And epoxy pouring type dry type piezoelectric transformer just eliminates the problems referred to above well; it has poured into a mould the special epoxy resin of transformer at the electromagnetic wire parcel of the good coil of coiling; ensure that electrical strength and the mechanical strength of coil, for coil and even transformer itself provides good protection.
But, because the special epoxy resin of transformer poured into a mould by the electromagnetic wire parcel at the good coil of coiling, coil is made to form a rigidity entirety, have impact on by the heat dispersion of molded coil, the convection current that the heat produced when transformer is normally run not readily passes through air distributes, cause the temperature rise of transformer more and more higher, accelerate the speed of ageing of insulation, substantially reduce the useful life that transformer is original.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The object of this invention is to provide a kind of low-temperature-rise dry-type transformer, it is poor that object is to solve epoxy pouring type transformer heat dispersion in background technology, heats up more and more higher, shorten the problem in the useful life of transformer.
The invention provides a kind of low-temperature-rise dry-type transformer, comprising: securing member unshakable in one's determination, unshakable in one's determination and strutting piece;
Described iron core is that Pyatyi seam is unshakable in one's determination;
Described securing member unshakable in one's determination comprises: high-low pressure upper clamping piece, high-low pressure lower clamping piece and Iron Core Clamping Device, Pyatyi seam is fixed with unshakable in one's determination between described high-low pressure upper clamping piece and described high-low pressure lower clamping piece, described Iron Core Clamping Device is fixedly mounted on described high-low pressure upper clamping piece and described high-low pressure lower clamping piece, and is fixed on the upper and lower two ends of described iron core;
Described strutting piece comprises: feet unshakable in one's determination and arm-tie, and described feet unshakable in one's determination is arranged on below described Pyatyi seam iron core and described high-low pressure lower clamping piece, is provided with described arm-tie between described feet unshakable in one's determination and described iron core.
It is unshakable in one's determination that the low-temperature-rise dry-type transformer that the invention provides refer to Pyatyi seam, ensure that transformer loss is less, noise is less and processing performance improves, reduce thermal source unshakable in one's determination, reduce the intensification of transformer, extend the useful life of transformer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is low-temperature-rise dry type transformer structure schematic diagram in the present invention;
Fig. 2 is low-temperature-rise dry-type transformer side structure schematic diagram in the present invention;
Fig. 3 is low-temperature-rise dry-type transformer iron structural representation in the present invention.
Reference numeral:
1-high-low pressure upper clamping piece; 2-high-low pressure lower clamping piece; 3-Iron Core Clamping Device;
4-feet unshakable in one's determination; 5-is unshakable in one's determination; 6-first screw rod;
7-second screw rod.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in an accompanying drawing of the present invention or a kind of execution mode and feature can combine with the element shown in one or more other accompanying drawing or execution mode and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
As depicted in figs. 1 and 2, the invention provides a kind of low-temperature-rise dry-type transformer, comprising: iron core 5, securing member unshakable in one's determination and strutting piece;
Described unshakable in one's determination 5 is that Pyatyi seam is unshakable in one's determination;
Described securing member unshakable in one's determination comprises: high-low pressure upper clamping piece 1, high-low pressure lower clamping piece 2 and Iron Core Clamping Device 3, Pyatyi seam is fixed with unshakable in one's determination between described high-low pressure upper clamping piece 1 and described high-low pressure lower clamping piece 2, described Iron Core Clamping Device 3 is fixedly mounted on described high-low pressure upper clamping piece 1 with on described high-low pressure lower clamping piece 2, and is fixed on described about 5 two ends unshakable in one's determination;
Described strutting piece comprises: feet 4 unshakable in one's determination and arm-tie, and described feet 4 unshakable in one's determination is arranged on below described Pyatyi seam unshakable in one's determination 5 and described high-low pressure lower clamping piece 2, is provided with described arm-tie between described feet 4 unshakable in one's determination and described unshakable in one's determination 5.
From technology and process aspect, low-temperature-rise dry-type transformer in the present invention, by adopting Pyatyi seam unshakable in one's determination, ensure that transformer has the advantage that loss is little, noise is little, processing performance is good.
Optionally, described 5 materials unshakable in one's determination are: 30Q130 silicon steel sheet.Optionally, described arm-tie offers groove.In order to reduce the eddy current loss that leakage field is formed on arm-tie in the present invention, in case overheated, when transformer requirement specified 630KVA and above time, need the groove offering proper width on arm-tie.
Optionally, described Iron Core Clamping Device comprises the first Iron Core Clamping Device and the second Iron Core Clamping Device;
Described first Iron Core Clamping Device symmetry is arranged on two ends, described left and right unshakable in one's determination; Described second clamping device symmetry is arranged on two ends, described left and right unshakable in one's determination.As depicted in figs. 1 and 2, at the two ends up and down of iron core, Iron Core Clamping Device is installed, and top and bottom there are two clamping devices respectively, are arranged on two ends, left and right unshakable in one's determination respectively, are used for iron core to fix.
Optionally, described first Iron Core Clamping Device comprises many first screw rods 6 crossing described high-low pressure upper clamping piece, and described first screw rod 6 two ends are provided with bolt, are provided with filling pad between described bolt and described high-low pressure upper clamping piece.
Optionally, described second Iron Core Clamping Device comprises many second screw rods 7 crossing described high-low pressure upper clamping piece, and described second screw rod 7 two ends are provided with bolt, are provided with filling pad between described bolt and described high-low pressure upper clamping piece.Wherein the structure of the first Iron Core Clamping Device and the second Iron Core Clamping Device is identical, is fixed with the bolt being arranged on screw rod two ends by the screw rod be transverse in high-low pressure upper clamping piece.
Optionally, the seam of described Pyatyi seam iron core is 45 ° of full bias seams.Have employed Pyatyi seam in the present invention unshakable in one's determination, and unshakable in one's determination employing does not fold upper yoke technique, alleviate the damage to silicon steel sheet, its no-load loss can also decline about 2%.Through theory calculate and production practices, the no-load loss of this novel product on average declines more than 10%, and no-load current declines more than 35%, and noise on average declines 4dB, greatly reduces thermal source unshakable in one's determination like this, thus reduces the temperature rise of transformer.Can say, use current core material, the no-load performance of transformer be improved, reduce the temperature rise of transformer, adopting Pyatyi seam lamination to be undoubtedly a kind of mode of production of the best, is also the ideal structure form replacing traditional secondary, three grades of seam laminated cores.
It is unshakable in one's determination that low-temperature-rise dry-type transformer in the present invention refer to Pyatyi seam, ensure that transformer loss is less, noise is less and processing performance improves, reduce thermal source unshakable in one's determination, reduce the intensification of transformer, extend the useful life of transformer.
Should emphasize, term " comprises/comprises " existence referring to feature, key element, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, key element, step or assembly.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by specification.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (7)
1. a low-temperature-rise dry-type transformer, is characterized in that, comprising: securing member unshakable in one's determination, unshakable in one's determination and strutting piece;
Described iron core is that Pyatyi seam is unshakable in one's determination;
Described securing member unshakable in one's determination comprises: high-low pressure upper clamping piece, high-low pressure lower clamping piece and Iron Core Clamping Device, Pyatyi seam is fixed with unshakable in one's determination between described high-low pressure upper clamping piece and described high-low pressure lower clamping piece, described Iron Core Clamping Device is fixedly mounted on described high-low pressure upper clamping piece and described high-low pressure lower clamping piece, and is fixed on the upper and lower two ends of described iron core;
Described strutting piece comprises: feet unshakable in one's determination and arm-tie, and described feet unshakable in one's determination is arranged on below described Pyatyi seam iron core and described high-low pressure lower clamping piece, is provided with described arm-tie between described feet unshakable in one's determination and described iron core.
2. low-temperature-rise dry-type transformer according to claim 1, is characterized in that, described core material is: 30Q130 silicon steel sheet.
3. low-temperature-rise dry-type transformer according to claim 1, is characterized in that, described arm-tie offers groove.
4. low-temperature-rise dry-type transformer according to claim 1, is characterized in that, described Iron Core Clamping Device comprises the first Iron Core Clamping Device and the second Iron Core Clamping Device;
Described first Iron Core Clamping Device symmetry is arranged on two ends, described left and right unshakable in one's determination; Described second clamping device symmetry is arranged on two ends, described left and right unshakable in one's determination.
5. low-temperature-rise dry-type transformer according to claim 4, it is characterized in that, described first Iron Core Clamping Device comprises many first screw rods crossing described high-low pressure upper clamping piece, described first screw rod two ends are provided with bolt, are provided with filling pad between described bolt and described high-low pressure upper clamping piece.
6. low-temperature-rise dry-type transformer according to claim 4, it is characterized in that, described second Iron Core Clamping Device comprises many second screw rods crossing described high-low pressure upper clamping piece, described second screw rod two ends are provided with bolt, are provided with filling pad between described bolt and described high-low pressure upper clamping piece.
7. low-temperature-rise dry-type transformer according to claim 1, is characterized in that, the seam of described Pyatyi seam iron core is 45 ° of full bias seams.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531979.XA CN105097226A (en) | 2015-08-26 | 2015-08-26 | Low temperature rise dry-type transformer |
| PCT/CN2015/092711 WO2017031824A1 (en) | 2015-08-26 | 2015-10-23 | Low temperature rise dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531979.XA CN105097226A (en) | 2015-08-26 | 2015-08-26 | Low temperature rise dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105097226A true CN105097226A (en) | 2015-11-25 |
Family
ID=54577448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510531979.XA Pending CN105097226A (en) | 2015-08-26 | 2015-08-26 | Low temperature rise dry-type transformer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105097226A (en) |
| WO (1) | WO2017031824A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976990A (en) * | 2016-07-04 | 2016-09-28 | 苏州吴变电气科技有限公司 | Heat dissipation structure of electric reactor |
| CN117854891A (en) * | 2024-03-08 | 2024-04-09 | 上海电气集团(张家港)变压器有限公司 | Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517855A (en) * | 2019-09-26 | 2019-11-29 | 南通大正电气有限公司 | A kind of small air-immersed transformer body compressing structure |
| CN112927894B (en) * | 2021-02-02 | 2022-04-29 | 天长市超威电子有限公司 | Multi-foot support-based lifting type mounting rack for electronic transformer |
| CN113871157A (en) * | 2021-09-15 | 2021-12-31 | 芜湖金牛电气股份有限公司 | External hanging type concentric stepped shaft connecting device |
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2015
- 2015-08-26 CN CN201510531979.XA patent/CN105097226A/en active Pending
- 2015-10-23 WO PCT/CN2015/092711 patent/WO2017031824A1/en active Application Filing
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| CN204991389U (en) * | 2015-08-26 | 2016-01-20 | 人民电器集团江苏斯诺成套设备工程有限公司 | Low temperature rise dry -type transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105976990A (en) * | 2016-07-04 | 2016-09-28 | 苏州吴变电气科技有限公司 | Heat dissipation structure of electric reactor |
| CN105976990B (en) * | 2016-07-04 | 2018-05-08 | 苏州吴变电气科技有限公司 | A kind of reactor radiator structure |
| CN117854891A (en) * | 2024-03-08 | 2024-04-09 | 上海电气集团(张家港)变压器有限公司 | Magnetic voltage-regulating transformer with conjugated oblique seam new iron core structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017031824A1 (en) | 2017-03-02 |
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Application publication date: 20151125 |