CN201251988Y - Epoxy casting frequency conversion rectification dry-type transformer - Google Patents
Epoxy casting frequency conversion rectification dry-type transformer Download PDFInfo
- Publication number
- CN201251988Y CN201251988Y CNU2008201093802U CN200820109380U CN201251988Y CN 201251988 Y CN201251988 Y CN 201251988Y CN U2008201093802 U CNU2008201093802 U CN U2008201093802U CN 200820109380 U CN200820109380 U CN 200820109380U CN 201251988 Y CN201251988 Y CN 201251988Y
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- CN
- China
- Prior art keywords
- valve side
- side winding
- frequency conversion
- resistant
- type transformer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an epoxy casting frequency conversion rectification dry-type transformer which comprises a line side winding and a plurality of valve side windings, wherein the plurality of valve side windings are connected by an extended triangle connecting method, the equivalent pulse number of the plurality of valve side windings can be 18, 30, 36, 42, 48, 54, and the like, which effectively reduces the input side harmonic current. The electromagnetic wires of the line side winding and the valve side windings adopt H-grade polyimide enamel covered flat wires so as to improve the insulating reliability. The line side winding and the valve side windings adopt the integrated casting forming technique, thereby increasing the ability to resist burst short circuit. The transformer is foul-resistant, salt mist-resistant, high temperature-resistant and high humidity-resistant.
Description
Technical field
The utility model relates to a kind of transformer manufacturing technology, belongs to electrical technology field.
Background technology
Along with deepening continuously and the continuous aggravation of market competition of economic reform, energy-saving and cost-reducing one of the important means that reduces cost, improves the quality of products that become.The frequency converter timing control system has been complied with the requirement of industrial production automation development, and in the extensive employing of industries such as oil, chemical industry, metallurgy, machinery, weaving, supporting with it frequency conversion rectifier dry-type transformer also develops rapidly.Especially under the serious operating mode in coastal filthy area, high salt fog, high temperature, high humidity area, metal dust, need that a kind of resistant is dirty, transformer---the frequency conversion rectifier dry-type transformer of salt spray resistance, high temperature resistant, anti-high humidity.
The utility model content
The purpose of this utility model provides a kind of poured with epoxy resin frequency conversion rectifier dry-type transformer.
The purpose of this utility model is achieved through the following technical solutions:
Poured with epoxy resin frequency conversion rectifier dry-type transformer of the present utility model, comprise net side winding, valve side winding, described valve side winding has many groups, described many group valve side windings adopt and prolong the limit delta-connection, and the equivalent pulse number of described many group valve side windings is following at least a: 18,30,36,42,48,54.
The electromagnetic wire of described net side winding and valve side winding is a H level polyimides enameling copper strap wire; Described net side winding and valve side winding are the integrated casting molding structure.
The technical scheme that is provided by above-mentioned the utility model as can be seen, poured with epoxy resin frequency conversion rectifier dry-type transformer described in the utility model, because many group valve side windings adopt and prolong the limit delta-connection, it is 18,30,36,42,48,54 etc. multiple that the equivalent pulse numbers of many group valve side windings can have, and effectively reduced the harmonic current of input side; The electromagnetic wire of net side winding and valve side winding is H level polyimides enameling copper strap wire and adopts the integrated casting molding structure, improved anti-sudden short circuit ability.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of the utility model poured with epoxy resin frequency conversion rectifier transformer;
Fig. 2 is the side structure schematic diagram of the utility model poured with epoxy resin frequency conversion rectifier transformer.
Embodiment
Poured with epoxy resin frequency conversion rectifier dry-type transformer of the present utility model, comprise net side winding, valve side winding, described valve side winding has many groups, described many group valve side windings adopt and prolong the limit delta-connection, and the equivalent pulse number of described many group valve side windings is following at least a: 18,30,36,42,48,54.
The electromagnetic wire of described net side winding and valve side winding is a H level polyimides enameling copper strap wire; Described net side winding and valve side winding are the integrated casting molding structure.
Exemplary embodiments, as shown in Figure 1 and Figure 2, the iron yoke 1 of poured with epoxy resin frequency conversion rectifier transformer adopts the drawstring of no core through screw rod, draws the screw rod clamping structure, and stem is not established location hole, reduces no-load loss and no-load current to greatest extent.Main 2 both sides cushioning NOMAX paper unshakable in one's determination help out to reducing noise unshakable in one's determination.Core limb is with the colligation of alkali-free glass fibre band.
Valve side winding 3 is a drum type brake, adopts the coiling of H level polyimides copper strap wire.Enough nargin is reserved in every layer of middle part lap wound transposition between wire turn.The head and the tail circle adopts flat around the curved transition of S, thereby has reduced brow leakage field and ampere-turn imbalance, has improved anti-short circuit capability and load anti-impact force.
In order to strengthen the radiating effect of winding, the high and low pressure winding all has the axial air flue of multilayer.
Between net side winding and the valve side winding, added the epoxy insulation tube between valve side winding and the iron core, alternately separated with phase partition, to dwindle insulation distance, made compact conformation, it is even that Electric Field Distribution is tending towards.
The iron core of poured with epoxy resin frequency conversion rectifier transformer adopts the continuous yoke structure of five step seams, and the employing of this structure can reduce the seam air gap of arbitrary section, reduces magnetic line of force distortion, no-load current and magnetic hysteresis loss, thereby helps reducing noise.
The utility model transformer has reduced the input side harmonic current, improves the current waveform of net side greatly, has obtained power savings.
Claims (2)
1, a kind of poured with epoxy resin frequency conversion rectifier dry-type transformer, comprise net side winding, valve side winding, it is characterized in that, described valve side winding has many groups, described many group valve side windings adopt and prolong the limit delta-connection, and the equivalent pulse number of described many group valve side windings is following at least a: 18,30,36,42,48,54.
According to the described poured with epoxy resin frequency conversion rectifier of claim 1 dry-type transformer, it is characterized in that 2, the electromagnetic wire of described net side winding and valve side winding is a H level polyimides enameling copper strap wire; Described net side winding and valve side winding are the integrated casting molding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201093802U CN201251988Y (en) | 2008-07-23 | 2008-07-23 | Epoxy casting frequency conversion rectification dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201093802U CN201251988Y (en) | 2008-07-23 | 2008-07-23 | Epoxy casting frequency conversion rectification dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251988Y true CN201251988Y (en) | 2009-06-03 |
Family
ID=40747662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201093802U Expired - Lifetime CN201251988Y (en) | 2008-07-23 | 2008-07-23 | Epoxy casting frequency conversion rectification dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251988Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012129980A1 (en) * | 2011-03-29 | 2012-10-04 | 江苏华鹏变压器有限公司 | Three-phase 48-pulse rectifier transformer |
| CN111009401A (en) * | 2019-11-29 | 2020-04-14 | 广州智光电气技术有限公司 | Dry type converter transformer and design method thereof |
-
2008
- 2008-07-23 CN CNU2008201093802U patent/CN201251988Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012129980A1 (en) * | 2011-03-29 | 2012-10-04 | 江苏华鹏变压器有限公司 | Three-phase 48-pulse rectifier transformer |
| CN111009401A (en) * | 2019-11-29 | 2020-04-14 | 广州智光电气技术有限公司 | Dry type converter transformer and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WOLONG ELECTRIC GROUP BEIJING HUATAI TRANSFORMER C Owner name: WOLONG ELECTRIC GROUP CO., LTD. Free format text: FORMER OWNER: BEIJING HUATAI TRANSFORMER CO., LTD. Effective date: 20110816 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 102200 CHANGPING, BEIJING TO: 312300 SHAOXING, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110816 Address after: 312300 No. 1801 Renmin West Road, Shaoxing, Zhejiang, Shangyu Co-patentee after: Wolong Electric Group Beijing Huatai Transformer Co., Ltd. Patentee after: Wolong Electric Group Co., Ltd. Address before: 102200 Beijing city Changping District Bai Fu Road 17 Patentee before: Wolong Electric (Group) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090603 |
|
| CX01 | Expiry of patent term |