CN202394664U - Low-no-load loss dry type transformer - Google Patents
Low-no-load loss dry type transformer Download PDFInfo
- Publication number
- CN202394664U CN202394664U CN2011205473588U CN201120547358U CN202394664U CN 202394664 U CN202394664 U CN 202394664U CN 2011205473588 U CN2011205473588 U CN 2011205473588U CN 201120547358 U CN201120547358 U CN 201120547358U CN 202394664 U CN202394664 U CN 202394664U
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- iron yoke
- load loss
- transformer
- low
- type transformer
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Abstract
The utility model provides a low-no-load loss dry type transformer, comprising an iron yoke, wherein a bonding band for tensioning the iron yoke is bonded on the iron yoke. A clamping piece is respectively arranged on two side walls of the iron yoke, and the clamping pieces are used for tensioning the outer side of the range of the iron yoke. Compared with the prior art, the low-no-load loss dry type transformer has the advantages that the iron yoke is tensioned by bonding the bonding band the iron yoke, and holes do not need to be formed on the iron yoke, so that not only can the iron yoke be fastened to prevent an iron core from vibrating when a power transformer runs, but also the magnetic flow can be distributed along a silicon-steel sheet rolling direction to guarantee the performance of a silicon-steel sheet, and therefore, the low-no-load loss dry type transformer has the obvious effects that the no-load loss and the no-load current of the transformer can be reduced, and the period for producing a transformer core can be shortened.
Description
Technical field
The utility model relates to the Dry-Transformer Technology field, specifically is a kind of dry-type transformer of low no-load loss.
Background technology
In the prior art and since power transformer when operation iron core will produce vibration, so the iron yoke all need carry out the integral body clamping with folder during plant design production transformer.Traditional clamping mode is on iron yoke sheet, to carry out punching, is strained and fixed with passing by nut the hole of screw rod from iron yoke sheet, to clamp the iron yoke again.Yet; Adopt this iron yoke tension structure need perforate in iron yoke, folder and folder insulation; With shown in the accompanying drawing 4, perforate has destroyed the planarization of silicon steel sheet, makes the magnetic line of force distort in the distribution of tapping like accompanying drawing 3; Accompanying drawing 5 is a magnetic line of force distribution map after the punching of traditional iron yoke unshakable in one's determination, has the component of vertical si steel disc rolling direction (Y axle among the figure) at the magnetic line of force of punching place.According to the characteristic of silicon steel sheet, each item performance that magnetic flux distributes along silicon steel sheet rolling direction (x axle among the figure) all is better than along vertical rolling direction (Y axle among the figure), so punching causes transformer core loss increase, the no-load current rising.
The utility model content
The technical problem that the utility model will solve provides a kind of dry-type transformer of low no-load loss, and it need not perforate on the iron yoke, can reduce transformer noload losses and no-load current and can shorten production cycle of transformer core.
The utility model can be able to implement through following technical scheme: a kind of iron yoke straining structure for air-immersed transformer, comprise the iron yoke, and be banded with the binding strap that is used to strain described iron yoke on the described iron yoke.
Two sidewalls of described iron yoke are provided with folder, and folder is used for straining in the iron yoke scope outside.
Be provided with the folder insulation between described folder and the described iron yoke, have groove in the described folder insulation, described binding strap partly is positioned at described groove, and the two ends of described binding strap are fixed by the stainless steel buckle fastening, thus tighten iron yoke.
Described binding strap is the nylon binding strap.
Compared with present technology the utility model has following advantage: owing to adopted the mode of bundle binding strap on the iron yoke to strain the iron yoke of dry-type transformer; And need not perforate on the iron yoke; Therefore can prevent that power transformer iron core when operation from producing vibration by fastening iron yoke; Can make magnetic flux distribute again and guaranteed the performance of silicon steel sheet, the production cycle of reducing transformer noload losses and no-load current, shortening transformer core is all had a significant effect along silicon steel sheet rolling direction.
Description of drawings
Figure l is a front view of the present invention.
Fig. 2 analyses and observe enlarged diagram for A-A direction among the accompanying drawing l.
Fig. 3 is an I district enlarged diagram in the accompanying drawing 2.
Fig. 4 is a transformer fe yoke tensioning mechanism sketch map of the prior art.
Fig. 5 analyses and observe enlarged diagram for B-B direction in the accompanying drawing 4.
Fig. 6 is a magnetic line of force distribution map after the punching of traditional iron yoke unshakable in one's determination.
Embodiment
To combine accompanying drawing that the preferred embodiments of the invention are elaborated below: like accompanying drawing l to shown in the accompanying drawing 3; A kind of iron yoke straining structure for air-immersed transformer; Comprise iron yoke l, be banded with the nylon binding strap 2 that is used to strain described iron yoke l on the described iron yoke l.
Two sidewalls of described iron yoke l are provided with folder 3, and folder 3 can be strained in the iron yoke scope outside, and still adopts the tapping bolt fixed form in iron yoke scope inside.
Be provided with folder insulation 5 between described folder 3 and the described iron yoke l, have groove 6 in the described folder insulation 5, described binding strap 2 parts are positioned at described groove 6, and the two ends of described binding strap 2 are fixed by stainless steel buckle 4 fastenings, thus tighten iron yoke l.
Strain the iron yoke of dry-type transformer owing to adopted the mode of bundle binding strap 2 on iron yoke l; Therefore compared with prior art need not perforate on iron yoke l; Can prevent that power transformer iron core when operation from producing vibration by fastening iron yoke l like this; Can make magnetic flux distribute again and guaranteed the performance of silicon steel sheet, the production cycle of reducing transformer noload losses and no-load current, shortening transformer core is all had a significant effect along silicon steel sheet rolling direction.
Claims (4)
1. the dry-type transformer of a low no-load loss comprises iron yoke (1), it is characterized in that: be banded with the binding strap (2) that is used to strain described iron yoke (1) on the described iron yoke (1).
2. according to the dry-type transformer of the described low no-load loss of claim l, it is characterized in that: two sidewalls of described iron yoke (1) are provided with folder (3).
3. according to the dry-type transformer of the described low no-load loss of claim l; It is characterized in that: be provided with folder insulation (5) between described folder (3) and the described iron yoke (1); Have groove (6) in the described folder insulation (5); Described binding strap (2) part is positioned at described groove (6), and the two ends of described binding strap (2) are fixed by stainless steel buckle (4) fastening.
4. according to the dry-type transformer of the described low no-load loss of claim l, it is characterized in that: described binding strap (2) is the nylon binding strap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205473588U CN202394664U (en) | 2011-12-24 | 2011-12-24 | Low-no-load loss dry type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205473588U CN202394664U (en) | 2011-12-24 | 2011-12-24 | Low-no-load loss dry type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394664U true CN202394664U (en) | 2012-08-22 |
Family
ID=46669571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205473588U Expired - Fee Related CN202394664U (en) | 2011-12-24 | 2011-12-24 | Low-no-load loss dry type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394664U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050237A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Clamp-free iron core fastening structure |
| CN103354153A (en) * | 2013-06-27 | 2013-10-16 | 宜兴市兴益特种变压器有限公司 | Iron core structure of electro-slag furnace transformer |
| CN105416860A (en) * | 2015-12-03 | 2016-03-23 | 无锡普天铁心股份有限公司 | Complete-sequence iron core protection device |
| CN109360720A (en) * | 2018-11-22 | 2019-02-19 | 云南变压器电气股份有限公司 | Single-phase transformer core construction |
-
2011
- 2011-12-24 CN CN2011205473588U patent/CN202394664U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050237A (en) * | 2012-12-27 | 2013-04-17 | 吴江市变压器厂有限公司 | Clamp-free iron core fastening structure |
| CN103354153A (en) * | 2013-06-27 | 2013-10-16 | 宜兴市兴益特种变压器有限公司 | Iron core structure of electro-slag furnace transformer |
| CN105416860A (en) * | 2015-12-03 | 2016-03-23 | 无锡普天铁心股份有限公司 | Complete-sequence iron core protection device |
| CN109360720A (en) * | 2018-11-22 | 2019-02-19 | 云南变压器电气股份有限公司 | Single-phase transformer core construction |
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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: 20120822 Termination date: 20181224 |