CN201673781U - Waterproof stain-resistant dry-type transformer - Google Patents
Waterproof stain-resistant dry-type transformer Download PDFInfo
- Publication number
- CN201673781U CN201673781U CN2010201859397U CN201020185939U CN201673781U CN 201673781 U CN201673781 U CN 201673781U CN 2010201859397 U CN2010201859397 U CN 2010201859397U CN 201020185939 U CN201020185939 U CN 201020185939U CN 201673781 U CN201673781 U CN 201673781U
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- China
- Prior art keywords
- iron core
- voltage coil
- type transformer
- low
- dry
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Abstract
The utility model relates to a waterproof stain-resistant dry-type transformer, which comprises an iron core and a high and low voltage coil sleeved on the iron core. The high and low voltage coil is fixed by supporting parts on upper and lower clamping parts. The high and low voltage coil, the iron core and the exposed parts of the upper and lower clamping parts are covered with PRTV layers. The dry transformer of the utility model has the characteristics of moisture resistance, waterproofness, stain resistance, good electrical insulation property and the like and prolongs the service life of the transformer. The PRTV layers have excellent performances of strong hydrophobicity and hydrophobicity transference, weather resistance, high and low temperature resistance, capability of keeping elasticity for a long time at the temperature of between minus 50 DEG C and 180 DEG C, good adhesive force, no toxicity, no corrosion, long storage period, convenient construction, low comprehensive cost and the like.
Description
Technical field
The utility model relates to a kind of transformer, relates in particular to a kind of dry-type transformer.
Background technology
Dry-type transformer divides usually around resin-cast encapsulated type, non-several around resin-cast solid insulation encapsulated type, open type dry-type transformer etc.Fire-retardant, anti-combustion that dry-type transformer has, advantage such as nuisanceless, non-maintaining are applied in skyscraper and commercial center, oil, chemical industry etc. have requirements at the higher level to fire prevention and safety department more and more.
Dry-type transformer moves when air humidity is bigger, or make moist back operation of solid insulation, and the breakdown voltage value of air improves, and the dielectric strength of solid insulation descends about 10%.Under adverse weather condition, can continuous moisture film occur and flashover takes place along moist dirty surface.In addition, after dry-type transformer iron core insulation is made moist, will produce very big eddy current loss, increase the iron core local pyrexia, make high and low winding temperature rise aggravation, and cause the short circuit of Transformer Winding insulation breakdown and burn.According to investigation, dry-type transformer is bigger in humidity ratio, relatively moves in the adverse circumstances, and it is serious that dry-type transformer burns phenomenon.
The utility model content
The purpose of this utility model is in order to solve above-mentioned prior art deficiency, a kind of technical scheme to be provided, and this dry-type transformer has the good electrical insulation, and water resistance is good, characteristics such as resistant sudden strain of a muscle.
The utility model water-proof stain-resistant type dry-type transformer comprises iron core, is enclosed within the high-voltage coil and low-voltage coil on the iron core, high-voltage coil and low-voltage coil is fixed by the strutting piece on the upper and lower folder, it is characterized in that being coated with PRTV antifouling flush paint layer on the exposed parts of above-mentioned high-voltage coil and low-voltage coil, iron core and upper and lower folder.By being coated with PRTV antifouling flush paint layer, its protection against the tide, waterproof, antifouling, insulation property improve greatly.
During concrete the use, dry-type transformer is except that binding post, and complete machine is coated with the PRTV antifouling flush paint.Usually coating layer thickness should be more than 0.4mmmm.
Above-mentioned iron core is for to be formed by the silicon steel sheet closed assembly, and the iron core outside is coated with PRTV antifouling flush paint layer.Iron core is before suit, and the iron core external spray has the PRTV antifouling flush paint, so just avoid dry-type transformer iron core insulation to make moist after, produces very big eddy current loss, the insulation property of raising iron core.
Above-mentioned high-voltage coil and low-voltage coil is the poured with epoxy resin coil.
The PRTV antifouling flush paint claims the electric power overlength to imitate antifouling flush paint again, and PRTV coating has hydrophobicity and the migration of hydrophobicity that is better than the RTV antifouling flush paint, has certain oil repellency and good not viscosity simultaneously.Under adverse weather condition, continuous moisture film can occur and flashover takes place along moist dirty insulator surface.Because it has migration of hydrophobicity, make the pollution layer surface also have hydrophobicity when coating PRTV coating, the pollution layer surface only has discontinuous droplet, and can not be soaked into, in flakes, makes the anti-soil of power equipment dodge performance and is greatly improved.Compare with the hydrophobic group quantity of PRTV inside, the hydrophobic group numbers of poles of Liu Shiing is few naturally, so the useful life of PRTV is very long.Compare with RTV coating, PRTV paint-based glue is in the longer service life of occurring in nature.
PRTV antifouling flush paint of the present utility model uses on dry-type transformer, increases substantially dry-type transformer external insulation pollution flashover voltage, and pollution flashover voltage can bring up to 200%, ensures the power equipment security of operation; Coating material has hydrophobicity and unique hydrophobicity migrate attribute, and promptly hydrophobicity can migrate to the pollution layer surface, does not form continuous moisture film at bad weather (rain, mist dew, drizzle) coating surface; Under the normal operating position of equipment, the power equipment external insulation can be in order to avoid clean non-maintaining.Save the human and material resources of a large amount of cleaning external insulations; Coating surface has hydrophobicity, thereby has prevented that effectively cement and chemical industry filth at its surface scale, can be widely used in various natural, industrial environments; Excellent insulation performance, mechanical performance are good, strong adhesion, anti-dust adhere to, corrosion-resistant, the life-span long, anti-corona, ageing-resistant, and has good anti-shoe ice effect and good weather resisteant; Coating does not fire, and solidifying the after-combustion grade is the FV-0 level, non-poisonous substances.
The beneficial effects of the utility model are: water-proof stain-resistant type dry-type transformer of the present utility model, have protection against the tide, waterproof, antifouling, characteristics such as electric insulating quality is good, and prolong the useful life of transformer.Strong, the anti-marquis of PRTV antifouling flush paint layer hydrophobicity and migration of hydrophobicity, high-low temperature resistant can be at-50 ℃--and 180 ℃ of temperature are medium-term and long-term to keep premium properties such as gentle elasticity, good, the nontoxic non-corrosiveness of adhesive force, storage period length, easy construction, integrated cost is low.
Description of drawings
Below in conjunction with drawings and Examples utility model is further specified.
Fig. 1 is the main TV structure schematic diagram of the utility model embodiment.
Fig. 2 is the plan structure schematic diagram of the utility model embodiment.
Among the figure: 1, coil 2, binding post 3, connecting line 4, iron core 5, sleeve pipe 6, upper clamping piece 7, lower clamping piece 8, pressure nail 11, coil top layer 12, PRTV antifouling flush paint layer
Embodiment
Present embodiment is an example with three-phase poured with epoxy resin dry-type transformer, in Fig. 1, Fig. 2, dry-type transformer coil adopts vacuum state to use poured with epoxy resin down, form firm integral body behind the hot setting, mechanical strength is good, and partial discharge is little, and low-voltage coil adopts whole Copper Foil coiling, the ampere-turn distribution equilibrium, anti-short circuit capability is strong; Iron core adopts the cold-rolled orientation silicon steel sheet to make, and it is close rationally to choose magnetic, effectively reduces no-load loss.The utility model comprises iron core 4, is enclosed within the high-voltage coil and low-voltage coil 1 on the iron core 4, high-voltage coil and low-voltage coil 1 is fixed by the strutting piece on upper clamping piece 6, the lower clamping piece 7, press nail 8 fixed coils 1 end face, coil top layer 11 at coil 1, and iron core 4, upper clamping piece 6, lower clamping piece 7, sleeve pipe 5, press on the complete machine of connecting line 3 etc. of nail 8, coil 1 and be coated with PRTV antifouling flush paint layer 12, binding post 2 parts such as wiring such as grade keep original appearance, can not be coated with PRTV antifouling flush paint layer 12.Simultaneously, iron core 4 is before suit coil 1, and iron core 4 surface coverage have PRTV antifouling flush paint layer 12.
PRTV antifouling flush paint layer 12 adopts spraying PRTV antifouling flush paint mode, and coating layer thickness should be more than 0.4mmmm usually.Surface drying in the 30min of coating back, 24h does solid work.
Claims (3)
1. water-proof stain-resistant type dry-type transformer comprises iron core, is enclosed within the high-voltage coil and low-voltage coil on the iron core, high-voltage coil and low-voltage coil is fixed by the strutting piece on the upper and lower folder, it is characterized in that the part that exposes of above-mentioned high-voltage coil and low-voltage coil, iron core and upper and lower folder is coated with PRTV antifouling flush paint layer.
2. water-proof stain-resistant type dry-type transformer according to claim 1 is characterized in that above-mentioned iron core is formed by the silicon steel sheet closed assembly, and the iron core outside is coated with PRTV antifouling flush paint layer.
3. water-proof stain-resistant type dry-type transformer according to claim 1 and 2 is characterized in that above-mentioned high-voltage coil and low-voltage coil is the poured with epoxy resin coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201859397U CN201673781U (en) | 2010-04-29 | 2010-04-29 | Waterproof stain-resistant dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201859397U CN201673781U (en) | 2010-04-29 | 2010-04-29 | Waterproof stain-resistant dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673781U true CN201673781U (en) | 2010-12-15 |
Family
ID=43331190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201859397U Expired - Fee Related CN201673781U (en) | 2010-04-29 | 2010-04-29 | Waterproof stain-resistant dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151146A (en) * | 2013-03-07 | 2013-06-12 | 明珠电气有限公司 | Water-proof epoxy cast dry type transformer |
-
2010
- 2010-04-29 CN CN2010201859397U patent/CN201673781U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103151146A (en) * | 2013-03-07 | 2013-06-12 | 明珠电气有限公司 | Water-proof epoxy cast dry type transformer |
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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: ZHEJIANG JIANGSHAN YUANGUANG ELECTRIC CO., LTD. Free format text: FORMER OWNER: YING HONGXI Effective date: 20120720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 324100 QUZHOU, ZHEJIANG PROVINCE TO: 324123 QUZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120720 Address after: 324123, No. eight, No. 1, Jiangdong Road, Jiangshan Economic Development Zone, Jiangshan, Zhejiang, Quzhou, China Patentee after: ZHEJIANG JIANGSHAN YUANGUANG ELECTRIC CO., LTD. Address before: 324100 No. 42, Cheng Cheng Road, Jiangshan City, Zhejiang Province Patentee before: Ying Hongxi |
|
| 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: 20101215 Termination date: 20190429 |