CN202839267U - Anti-thunderstrike harmonic reduction combined type transformer - Google Patents
Anti-thunderstrike harmonic reduction combined type transformer Download PDFInfo
- Publication number
- CN202839267U CN202839267U CN 201220161513 CN201220161513U CN202839267U CN 202839267 U CN202839267 U CN 202839267U CN 201220161513 CN201220161513 CN 201220161513 CN 201220161513 U CN201220161513 U CN 201220161513U CN 202839267 U CN202839267 U CN 202839267U
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- voltage coil
- cabinet body
- transformer cabinet
- transformer
- electrostatic shield
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Abstract
The utility model discloses an anti-thunderstrike harmonic reduction combined type transformer which structurally comprises a transformer cabinet body, a low-voltage coil, a high-voltage coil and a high-voltage coil outlet head. A grounding electrostatic shield is arranged between the low-voltage coil and the high-voltage coil, and a high-voltage coil end portion electrostatic shield is arranged on the end portion of the high-voltage coil. The transformer cabinet body is made of a stainless steel plate with the thickness of 2.5mm, after the outer surface of the transformer cabinet body conducts acid pickling, parkerising and rust cleaning, and then the outer surface of the transformer cabinet body conducts spraying plastics processing by corrosion-resisting and abrasion-resisting materials. The grounding electrostatic shield and the high-voltage coil end portion electrostatic shield are all made of brass sheets with the thicknesses of 0.3mm. An electrostatic shield is added on the end portion of the high-voltage coil, capacitance of the end portion of a winding is increased, and anti-thunderstrike and various overvoltage impacting performance of the winding is effectively improved. The grounding electrostatic shield which is connected to the ground is arranged between the high-voltage coil and the low-voltage coil, harmonic waves which are transferred between the high-voltage coil and the low-voltage coil are effectively stopped or reduced, transmission quality of power grid is improved, a whole outer shell of the transformer cabinet body conducts abrasion-resisting and corrosion-resisting processing, and service life of the transformer cabinet body is prolonged.
Description
Technical field
The utility model relates to a kind of combined transformer, especially a kind of combined transformer that possesses anti-lightning and can fall harmonic wave.
Background technology
Rapid raising along with national economy fast development and living standards of the people, demand to electric power is increasing, existing thermoelectricity, water power can not satisfy the demands, the nuclear power that rises recent years is then because its fail safe is under suspicion, wind power generation is rapidly developed as a kind of clean energy resource of energy-conserving and environment-protective.This has higher requirement for wind power generation combined type transformer, wind power plant is generally all built the throughout the year area of strong wind such as desert, mountain pass or sea in, the many thunders of environment, rainy, many harsh weather, so wind power generation combined type transformer will have the ability of very high anti lightning and the impact of various overvoltage, and because its residing adverse circumstances, the integral body of transformer is also wear-resisting, and is corrosion-resistant, can safely and reliably operation in various rugged environments.
Present used for wind power generation combined transformer high pressure is the 35KV level normally, and the high pressure winding is generally layered structure, and this structure winding lightning impulse resistant ability is relatively poor.And because the electricity that present wind-driven generator sends will can produce high order harmonic component in the commutation inversion process through the output of just being incorporated into the power networks behind the commutation inversion, seriously influence transmission quality and the useful life of electrical network.
Summary of the invention
Goal of the invention: for the deficiencies in the prior art, we grope through long-term practice aborning, have created a kind of anti-lightning and have fallen the harmonic wave combined transformer.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the utility model adopts is: the harmonic wave combined transformer falls in a kind of anti-lightning, its structure comprises low-voltage coil and high-tension coil and the high-voltage terminal head of transformer cabinet, described transformer cabinet inside, be provided with a ground connection electrostatic shielding between described low-voltage coil and the high-tension coil, described high-tension coil end is provided with a high-tension coil end electrostatic shielding.Described ground connection electrostatic shielding two ends are provided with insulated coil.Described transformer cabinet adopts the 2.5mm corrosion resistant plate to make, and outer surface is processed with corrosion-resistant, wear-resisting material plastic-blasting after the acid washing phosphorization rust cleaning, and lacquer coat thickness is greater than 0.3mm.
Described ground connection electrostatic shielding and high-tension coil end electrostatic shielding all adopt the 0.3mm brass sheet to make.
Beneficial effect: the utility model compared with prior art, its beneficial effect is: 1, place an electrostatic shielding in the high-tension coil end, increased winding end electric capacity, improve the field intensity of end, effectively improve the ability that the anti lightning of winding and various overvoltage are impacted; 2, place the electrostatic shielding of ground connection between the high and low pressure coil, effectively prevention or reduction harmonic wave transmit between high-voltage coil and low-voltage coil, to a side start protection effect of non-generation harmonic wave, improve the transmission quality of electrical network; 3, the transformer monolithic case is carried out wear-resisting, corrosion-resistance treatment, prolonged the useful life of cabinet.
Description of drawings
Fig. 1 is the structural representation that the harmonic wave combined transformer falls in a kind of anti-lightning of the utility model.
Embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solutions of the utility model are elaborated, but protection range of the present utility model is not limited to described embodiment.
As shown in Figure 1, the harmonic wave combined transformer falls in a kind of anti-lightning, its structure comprises low-voltage coil 1 and high-tension coil 4 and the high-voltage terminal head 5 of transformer cabinet 6, transformer cabinet 6 inside, be provided with a ground connection electrostatic shielding 2 between described low-voltage coil 1 and the high-tension coil 4, ground connection electrostatic shielding 2 two ends are provided with insulated coil.The end of high-tension coil 4 is provided with a high-tension coil end electrostatic shielding 3.Transformer cabinet 6 adopts the 2.5mm corrosion resistant plate to make, and outer surface is processed with corrosion-resistant, wear-resisting material plastic-blasting after the acid washing phosphorization rust cleaning, and lacquer coat thickness is greater than 0.3mm.
Described ground connection electrostatic shielding 2 and high-tension coil end electrostatic shielding 3 all adopt the 0.3mm brass sheet to make.
The electric screen lead-out wire of high-tension coil end electrostatic shielding 3 and high-voltage terminal head 5 are connected together during real work, and the electric screen lead-out wire of the ground connection electrostatic shielding 2 between the high-low pressure is then wanted reliable ground.In order to ensure service quality, after low-voltage coil 1 coiling is finished, in its appearance around certain thickness stay chain and cardboard, guarantee electrical distance after, coiling ground connection electrostatic shielding 2, two ends add insulating end ring.When carrying out the general assembly of electric screen lead-out wire, want the folder of reliable and ground connection to be connected together, after 2 coilings of ground connection electrostatic shielding are finished, continue the certain thickness stay chain of coiling and cardboard, the square ring that adds high pressure, then at end winding coiling high-tension coil end electrostatic shielding 3, other are local levels up with the stay curtain, the coiling high-tension coil 4 again, and electric screen lead-out wire and the high-voltage terminal head 5 of high-tension coil end electrostatic shielding 3 are connected together.
Claims (4)
1. the harmonic wave combined transformer falls in an anti-lightning, its structure comprises transformer cabinet (6), inner low-voltage coil (1) and high-tension coil (4) and the high-voltage terminal head (5) of described transformer cabinet (6), it is characterized in that: be provided with a ground connection electrostatic shielding (2) between described low-voltage coil (1) and the high-tension coil (4), described high-tension coil (4) end is provided with a high-tension coil end electrostatic shielding (3).
2. the harmonic wave combined transformer falls in a kind of anti-lightning according to claim 1, it is characterized in that: described ground connection electrostatic shielding (2) two ends are provided with insulated coil.
3. the harmonic wave combined transformer falls in a kind of anti-lightning according to claim 1, it is characterized in that: described transformer cabinet (6) adopts the 2.5mm corrosion resistant plate to make, outer surface is processed with corrosion-resistant, wear-resisting material plastic-blasting after the acid washing phosphorization rust cleaning, and lacquer coat thickness is greater than 0.3mm.
4. fall the harmonic wave combined transformer with a kind of anti-lightning claimed in claim 2 according to claim 1, it is characterized in that: described ground connection electrostatic shielding (2) and high-tension coil end electrostatic shielding (3) all adopt the 0.3mm brass sheet to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161513 CN202839267U (en) | 2012-04-17 | 2012-04-17 | Anti-thunderstrike harmonic reduction combined type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161513 CN202839267U (en) | 2012-04-17 | 2012-04-17 | Anti-thunderstrike harmonic reduction combined type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839267U true CN202839267U (en) | 2013-03-27 |
Family
ID=47950911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220161513 Expired - Fee Related CN202839267U (en) | 2012-04-17 | 2012-04-17 | Anti-thunderstrike harmonic reduction combined type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839267U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779633A (en) * | 2012-07-10 | 2012-11-14 | 苏州张扬能源科技有限公司 | Combined transformer |
| WO2016065894A1 (en) * | 2014-10-30 | 2016-05-06 | 华为技术有限公司 | Galvanic corrosion suppression method, grounding wire apparatus and grounding system |
| CN107680780A (en) * | 2017-10-24 | 2018-02-09 | 山东达驰电气有限公司 | A kind of loop construction of transformer |
-
2012
- 2012-04-17 CN CN 201220161513 patent/CN202839267U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779633A (en) * | 2012-07-10 | 2012-11-14 | 苏州张扬能源科技有限公司 | Combined transformer |
| WO2016065894A1 (en) * | 2014-10-30 | 2016-05-06 | 华为技术有限公司 | Galvanic corrosion suppression method, grounding wire apparatus and grounding system |
| CN107680780A (en) * | 2017-10-24 | 2018-02-09 | 山东达驰电气有限公司 | A kind of loop construction of transformer |
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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: 20130327 Termination date: 20180417 |