CN201465711U - High-capacity dry-type transformer cushion block - Google Patents
High-capacity dry-type transformer cushion block Download PDFInfo
- Publication number
- CN201465711U CN201465711U CN2009200973509U CN200920097350U CN201465711U CN 201465711 U CN201465711 U CN 201465711U CN 2009200973509 U CN2009200973509 U CN 2009200973509U CN 200920097350 U CN200920097350 U CN 200920097350U CN 201465711 U CN201465711 U CN 201465711U
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- CN
- China
- Prior art keywords
- cushion block
- type transformer
- capacity dry
- big capacity
- boss
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- Expired - Fee Related
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Abstract
The utility model relates to a high-capacity dry transformer cushion block, belonging to the technical field of electrical transformation. The cushion block is fixedly arranged among a high-voltage winding, a clamp and a low-voltage winding. The cushion block is characterized in that the cushion block is integrally divided into an upper cushion block and a lower cushion block which are of embedded structures. A boss for fixing coils is arranged in the middle of the upper cushion block and an insulating cylinder groove is placed on the boss. The high-capacity dry transformer cushion block has the advantages of simple structure, convenient assembly, low cost, economy, practicability, ventilation, heat dissipation, safety, reliability, good electrical property and capability of effectively increasing the creepage distance, etc.
Description
Technical field
The utility model belongs to the power transformer technical field, particularly relates to a kind of big capacity dry-type transformer cushion block.
Background technology
At present, there is the partial discharge quantity problem of product in big capacity dry-type transformer, and is wayward.The inner partial discharge that takes place of transformer often be exactly electric arc repeat puncture and extinguish, if can not get effective control, gently then cause transformer to reduce useful life, heavy then cause taking place serious burnout failure.Partial discharge has comparatively complicated mechanism, and one of them important reasons is because the creepage distance of high pressure winding overhang and parcel received, low pressure winding is less than normal.Increase creepage distance, avoid cushion block outer surface fineness to reduce, the ventilation and heat ability of intensifier coil, becoming solution influences technical problems such as transformer security of operation.
Summary of the invention
The utility model provides a kind of big capacity dry-type transformer cushion block for solving the problem that prior art exists.
The utility model purpose provide a kind of have simple in structure, easy to assembly, with low cost, economical and practical, ventilation and heat, safe and reliable, good electrical property effectively increases the big capacity dry-type transformer cushion block of characteristics such as creepage distance.
The big capacity dry-type transformer of the utility model cushion block adopts following technical scheme:
A kind of big capacity dry-type transformer cushion block, fixed bolster is contained between high pressure winding and folder, the low pressure winding, and it is characterized in that: cushion block integral body is divided into cushion block and lower cushion block, and two cushion blocks are the setting-in structure up and down, there is the fixed coil boss at last cushion block middle part, and the insulating cylinder of placement groove is arranged on the boss.
The big capacity dry-type transformer of the utility model cushion block can also adopt following technical measures:
Described big capacity dry-type transformer cushion block is characterized in: there is location hole the lower cushion block bottom, presses nail location hole and thermostat probe hole.
Described big capacity dry-type transformer cushion block is characterized in: the setting-in position is the corresponding structure with groove of boss, and silicagel pad is arranged in the groove.
Described big capacity dry-type transformer cushion block is characterized in: after going up cushion block and lower cushion block setting-in, be lined with the hard silicane rubber plate on cushion block top.
Described big capacity dry-type transformer cushion block is characterized in: the air flue hole site of going up the corresponding coil in cushion block top has transverse concave groove.
Described big capacity dry-type transformer cushion block is characterized in: it is shorter than the length of lower cushion block to go up cushion block, and the front end of cushion block, boss and groove are the camber line structure, and rearward end is a linear structure.
Described big capacity dry-type transformer cushion block is characterized in: going up cushion block and lower cushion block is epoxy resin, glass fiber grid moulding by casting structure in mould.
Advantage that the utlity model has and good effect:
A kind of big capacity dry-type transformer cushion block, owing to adopted the utility model brand-new technology scheme, compared with prior art, this transformer has following characteristics: can increase creepage distance, avoided because of increasing the surface smoothness reduction that the added translot of creep distance causes, effectively reduction office puts; Cushion block is divided into two, makes things convenient for the workman to operate; Gapped between two cushion blocks, convenient fine setting; The lower cushion block mould is oversimplified, unitized, save cost, increasing versatility. the transverse concave groove on cushion block top is corresponding with the air flue hole site of coil, increase the ventilation and heat ability of coil, reduced the temperature rise of coil, improved the transformer reliability of operation. the cushion block bottom has the thermostat probe hole, both can measure the temperature of coil, insulation to coil can guarantee again to pop one's head in. and cushion block top is lined with the suitable hard silicane rubber plate of modulus of elasticity, is used to cushion short-circuit impact and coil expanded by heating and the axial height deformation that produces.
The utlity model has simple in structure, easy to assembly, with low cost, economical and practical, ventilation and heat, safe and reliable, good electrical property effectively increases advantages such as creepage distance.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of looking up of Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1.
Among the figure, 1-presses nail location hole, 2-location hole, 3-thermostat probe hole, the last cushion block of 4-, 5-boss, 6-insulating cylinder groove, 7-silicane rubber plate, 8-lower cushion block, 9-transverse concave groove.
Embodiment
For further understanding technology contents of the present utility model, characteristics and effect, enumerate following example now, and conjunction with figs. is described in detail as follows:
Embodiment
With reference to accompanying drawing 1, Fig. 2 and Fig. 3.
A kind of big capacity dry-type transformer cushion block, fixed bolster are contained between high pressure winding and folder, the low pressure winding.Cushion block integral body is divided into cushion block 4 and lower cushion block 8, and last cushion block 4 and lower cushion block 8 are epoxy resin, glass fiber grid moulding by casting structure in mould.Two cushion blocks are the setting-in structure up and down, and there is fixed coil at last cushion block 4 middle parts with boss 5, and the insulating cylinder of placement groove 6 is arranged on the boss 5; There is location hole 2 lower cushion block 8 bottoms, presses nail location hole 1 and thermostat probe hole 3.The setting-in position is the corresponding structure with groove of boss, and silicagel pad is arranged in the groove.Behind last cushion block 4 and lower cushion block 8 setting-ins, be lined with hard silicane rubber plate 7 on cushion block top.The air flue hole site of the corresponding coil in last cushion block 4 tops has transverse concave groove 9.Last cushion block 4 is shorter than the length of lower cushion block 8, and the front end of cushion block, boss and groove are the camber line structure, and be corresponding with iron core, and rearward end is a linear structure.
On cushion block, leave all grooves behind cushion block 4 and lower cushion block 8 setting-ins on the present embodiment, can increase the creepage distance of cushion block.Last cushion block 4 tops are lined with silicane rubber plate 7, can cushion electrodynamic influence.Boss 5 is used for fixing coil, prevents coil in the cover process of assembling, and deviation is excessive.Slot 6 on the boss 5, be used for placing insulating cylinder.Transverse concave groove 9 is corresponding with coil ventilating air passage position, intensifier coil ventilation and heat ability.
Claims (7)
1. one kind big capacity dry-type transformer cushion block, fixed bolster is contained between high pressure winding and folder, the low pressure winding, and it is characterized in that: cushion block integral body is divided into cushion block and lower cushion block, and two cushion blocks are the setting-in structure up and down, there is the fixed coil boss at last cushion block middle part, and the insulating cylinder of placement groove is arranged on the boss.
2. according to the described big capacity dry-type transformer cushion block of claim 1, it is characterized in that: there is location hole the lower cushion block bottom, presses nail location hole and thermostat probe hole.
3. according to the described big capacity dry-type transformer cushion block of claim 1, it is characterized in that: the setting-in position is the corresponding structure with groove of boss, and silicagel pad is arranged in the groove.
4. according to the described big capacity dry-type transformer cushion block of claim 1, it is characterized in that: after going up cushion block and lower cushion block setting-in, be lined with the hard silicane rubber plate on cushion block top.
5. according to the described big capacity dry-type transformer cushion block of claim 1, it is characterized in that: the air flue hole site of going up the corresponding coil in cushion block top has transverse concave groove.
6. according to the described big capacity dry-type transformer cushion block of claim 1, it is characterized in that: it is shorter than the length of lower cushion block to go up cushion block, and the front end of cushion block, boss and groove are the camber line structure, and rearward end is a linear structure.
7. according to the described big capacity dry-type transformer cushion block of the described arbitrary claim of claim 1 to 6, it is characterized in that: going up cushion block and lower cushion block is epoxy resin, glass fiber grid moulding by casting structure in mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973509U CN201465711U (en) | 2009-06-26 | 2009-06-26 | High-capacity dry-type transformer cushion block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200973509U CN201465711U (en) | 2009-06-26 | 2009-06-26 | High-capacity dry-type transformer cushion block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465711U true CN201465711U (en) | 2010-05-12 |
Family
ID=42393059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200973509U Expired - Fee Related CN201465711U (en) | 2009-06-26 | 2009-06-26 | High-capacity dry-type transformer cushion block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465711U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930827A (en) * | 2010-09-13 | 2010-12-29 | 无锡亿能电力设备有限公司 | Pad device for transformer |
| CN102360823A (en) * | 2011-07-01 | 2012-02-22 | 胡宗 | Transparent insulation cushion block |
| CN108922751A (en) * | 2018-09-07 | 2018-11-30 | 保定天威顺达变压器有限公司 | A kind of cooling system and its application method of large capacity casting dry type transformer |
| WO2024065990A1 (en) * | 2022-09-27 | 2024-04-04 | 吴江变压器有限公司 | Dry-type split transformer and mounting method therefor |
-
2009
- 2009-06-26 CN CN2009200973509U patent/CN201465711U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930827A (en) * | 2010-09-13 | 2010-12-29 | 无锡亿能电力设备有限公司 | Pad device for transformer |
| CN102360823A (en) * | 2011-07-01 | 2012-02-22 | 胡宗 | Transparent insulation cushion block |
| CN108922751A (en) * | 2018-09-07 | 2018-11-30 | 保定天威顺达变压器有限公司 | A kind of cooling system and its application method of large capacity casting dry type transformer |
| WO2024065990A1 (en) * | 2022-09-27 | 2024-04-04 | 吴江变压器有限公司 | Dry-type split transformer and mounting method therefor |
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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: 20100512 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |