CN2862285Y - Teeming transformer coil having shielding - Google Patents
Teeming transformer coil having shielding Download PDFInfo
- Publication number
- CN2862285Y CN2862285Y CN 200520068001 CN200520068001U CN2862285Y CN 2862285 Y CN2862285 Y CN 2862285Y CN 200520068001 CN200520068001 CN 200520068001 CN 200520068001 U CN200520068001 U CN 200520068001U CN 2862285 Y CN2862285 Y CN 2862285Y
- Authority
- CN
- China
- Prior art keywords
- winding
- windings
- shielding
- transformer
- transformer coil
- Prior art date
- 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 - Fee Related
Links
Images
Landscapes
- Regulation Of General Use Transformers (AREA)
- Insulating Of Coils (AREA)
Abstract
The utility model relates to a winding of cast resin shielded transformer, which includes inner winding, outer winding, air passage, and shielding/insulating layer disposed between the windings and/or inner and outer sides of the windings. The utility model has simple and reasonable structure, the air passage between the windings is mainly used for ventilation and heat dissipation of the transformer, insulation between the windings is realized via electrostatic shield and epoxy resin insulating layer, thus, insulating strength between the windings is improved, consumption of noble metal on winding is lowered, and no inductive static electricity is generated between the windings due to the grounded electrostatic shield.
Description
Technical field
The utility model relates to the transformer coil of the band shielding of a kind of transformer coil, particularly a kind of cast.
Background technology
In general, mainly be by air-insulated between the high-voltage coil and low-voltage coil of dry-type transformer, owing to be subjected to the restriction of dielectric breakdown field intensity, the air channel width between high-voltage coil and low-voltage coil surpasses the value that guarantees that its energy efficiently radiates heat ventilates usually, and this will cause high-tension coil consumption copper more.At this point, China Patent No. " CN98221831.1 " discloses a kind of " power transformer resin-cast winding air flue shielding construction ", this shielding construction is made up of epoxy resin, screen and air channel, completes through making steps such as screen, coiling winding, placement template and screen, vacuum epoxy resin cast, hot setting, the demoulding.It is said, adopt the winding of the air flue shielding construction that this new technology makes, it is low because of the dielectric coefficient of air in the insulating barrier to have solved resin compounded insulating power transformer, make properties of product can not satisfy the technical barrier of high voltage requirement, dwindle the physical dimension of epoxy resin transformer greatly, reduced load loss and production cost.But the screen in this transformer is also earth-free, is in floating potential, is equivalent to grading ring in view of actual effect; In addition, the screen of this transformer only is arranged between winding layers, has only changed the Electric Field Distribution of longitudinal insulation.
The utility model content
It is a kind of simple and reasonable that the purpose of this utility model is to provide, and is convenient to processing, can be effectively to carrying out the transformer coil of shielding insulation between the inside and outside winding, to overcome weak point of the prior art.
The technical scheme that its technical problem that solves the utility model adopts is, a kind of transformer coil of band shielding of cast comprises interior winding, and outer winding and air channel is characterized in that between the described winding or/and the winding medial and lateral are provided with shield dielectric layer.
Described shield dielectric layer is electrostatic shielding and epoxy resins insulation layer, and the epoxy resins insulation layer is arranged between electrostatic shielding and the winding.
Described electrostatic shielding is provided with the electrostatic shielding earth lead.
The utility model is simple and reasonable, air channel between its coil is mainly born the effect of the ventilation and heat of transformer, insulation between inside and outside winding is then born by electrostatic shielding and epoxy resins insulation layer, so both improve the dielectric strength between the coil, and reduced the consumption of precious metal on the coil again; And since electrostatic shielding ground connection, non-inductive static between the inside and outside winding.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of another embodiment of the utility model.
Fig. 3 is the utility model cross-sectional schematic.
Embodiment
Referring to Fig. 1, Fig. 3, a kind of transformer coil of band shielding of cast, winding 6, outer winding 4 and air channel 7 in comprising, or/and the winding medial and lateral are provided with shield dielectric layer, shield dielectric layer is arranged between air channel 7 and the outer winding 4 among Fig. 1 between the winding, and shield dielectric layer is electrostatic shielding 3 and epoxy resins insulation layer 5, epoxy resins insulation layer 5 is arranged between electrostatic shielding 3 and the winding 4, and electrostatic shielding 3 is provided with electrostatic shielding earth lead 2.1 is iron core among the figure, and earth lead can be connected on the iron core.
Referring to Fig. 2, shield dielectric layer is arranged between the inside and outside both sides and air channel 7 and outer winding 4 of interior winding 6.
Claims (3)
1. the transformer coil of the band of cast shielding comprises interior winding (6), and outer winding (4) and air channel (7) is characterized in that between the described winding or/and the winding medial and lateral are provided with shield dielectric layer.
2. transformer coil according to claim 1 is characterized in that described shield dielectric layer is electrostatic shielding (3) and epoxy resins insulation layer (5), and the epoxy resins insulation layer is arranged between electrostatic shielding and the winding.
3. transformer coil according to claim 2 is characterized in that described electrostatic shielding is provided with electrostatic shielding earth lead (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068001 CN2862285Y (en) | 2005-11-29 | 2005-11-29 | Teeming transformer coil having shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520068001 CN2862285Y (en) | 2005-11-29 | 2005-11-29 | Teeming transformer coil having shielding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862285Y true CN2862285Y (en) | 2007-01-24 |
Family
ID=37659915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520068001 Expired - Fee Related CN2862285Y (en) | 2005-11-29 | 2005-11-29 | Teeming transformer coil having shielding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862285Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794663A (en) * | 2010-04-08 | 2010-08-04 | 崔贵峰 | Dry-type iron-core reactor with resin molded coil |
| CN104867666A (en) * | 2015-05-12 | 2015-08-26 | 山东电工电气集团智能电气有限公司 | Dry-type transformer high-voltage coil insulation structure |
| CN111613411A (en) * | 2019-02-25 | 2020-09-01 | 尤大千 | Insulation winding of electrical equipment by adopting sintering process and grounding shielding technology |
-
2005
- 2005-11-29 CN CN 200520068001 patent/CN2862285Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794663A (en) * | 2010-04-08 | 2010-08-04 | 崔贵峰 | Dry-type iron-core reactor with resin molded coil |
| CN104867666A (en) * | 2015-05-12 | 2015-08-26 | 山东电工电气集团智能电气有限公司 | Dry-type transformer high-voltage coil insulation structure |
| CN111613411A (en) * | 2019-02-25 | 2020-09-01 | 尤大千 | Insulation winding of electrical equipment by adopting sintering process and grounding shielding technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2862285Y (en) | Teeming transformer coil having shielding | |
| CN101801170B (en) | Electric field shield and manufacturing method thereof | |
| CN207458740U (en) | A kind of earthing reactor shielding construction | |
| CN101996751A (en) | Epoxy resin pouring shielding cylinder of transformer | |
| CN202210461U (en) | Epoxy resin cast type light high-voltage test transformer | |
| CN202405081U (en) | Novel dry-transformer coil | |
| CN108461266A (en) | A kind of current transformer with low pressure shielding | |
| CN212587333U (en) | Body structure of single-phase direct-buried dry-type transformer | |
| CN201478076U (en) | high-frequency and high-voltage transformer | |
| CN201425877Y (en) | Medium-high frequency electrostatic dust removal dry-type transformer high-voltage coil | |
| CN202695120U (en) | Armored shielded high-voltage test transformer | |
| CN202285190U (en) | Small-sized energy-saving dry-type transformer | |
| CN208271708U (en) | A kind of oil-immersed transformer oil channel structure | |
| CN103545084A (en) | I-shaped inductor used for driving power of LED (Light Emitting Diode) energy-saving lamp | |
| CN208127009U (en) | A kind of one or two fusion Current Transformers of on-pole switch | |
| CN2463937Y (en) | Semi-closed dry transformer | |
| CN201608024U (en) | High-frequency and high-voltage solid rectifier transformer | |
| CN103106999A (en) | Dry-type transformer | |
| CN201717099U (en) | Gradually-changing high-voltage coil turn number type transformer | |
| CN206312737U (en) | A kind of sensing heating coaxial transformer | |
| CN2359788Y (en) | Resin pouring winding air flue shielding structure of power transformer | |
| CN204834307U (en) | Insulator arrangement of dry -type transformer coil | |
| CN201886881U (en) | Epoxy resin pouring shielding barrel of transformer | |
| CN2653658Y (en) | Resin insulation dry power transformer of track circular iron core and coil | |
| CN218274231U (en) | Current transformer |
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: AREVA- SUNTEN ELECTRIC CO. LTD. Free format text: FORMER OWNER: SUNTEN ELECTRIC CO. LTD Effective date: 20100129 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100129 Address after: Guangdong province Foshan city Shunde District, Daliang Honggang Industrial Zone, 528300 Patentee after: Areva-Sunten Electric Co., Ltd. Address before: Guangdong province Foshan city Shunde District, Daliang Honggang Industrial Zone, 528300 Patentee before: Sunten Electric Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUNTEN ELECTRIC CO. LTD. Free format text: FORMER NAME: AREVA-SUNTEN ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 Guangdong Province, Foshan city Shunde District Daliang Honggang Industrial Zone Patentee after: Sunten Electric Equipment Co., Ltd. Address before: 528300 Guangdong Province, Foshan city Shunde District Daliang Honggang Industrial Zone Patentee before: Areva-Sunten Electric Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070124 Termination date: 20131129 |