CN201562535U - Control transformer - Google Patents
Control transformer Download PDFInfo
- Publication number
- CN201562535U CN201562535U CN2009202477698U CN200920247769U CN201562535U CN 201562535 U CN201562535 U CN 201562535U CN 2009202477698 U CN2009202477698 U CN 2009202477698U CN 200920247769 U CN200920247769 U CN 200920247769U CN 201562535 U CN201562535 U CN 201562535U
- Authority
- CN
- China
- Prior art keywords
- winding
- iron core
- secondary winding
- epoxy resin
- epoxy
- 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
- Insulating Of Coils (AREA)
Abstract
Disclosed is a control transformer, comprising a primary winding, a secondary winding and a square-shaped iron core. The primary winding and the secondary winding respectively corresponding to an inner layer and an outer layer are arranged on a core column of the iron core. The primary winding, the secondary winding and the square-shaped iron core are filled with an epoxy resin and packaged in an epoxy resin shell. Pins at two ends of the primary winding are respectively passed through A/B-phase epoxy resin column in the upper end of the epoxy resin shell and respectively connected with corresponding binding screws. The outgoing lines at two ends of the secondary winding coil are connected with connecting terminals correspondingly arranged on a terminal plate. The utility model realizes a reduced 60 per cent of no-load loss, thus not only reducing the loss and saving the energy but also enhancing the anti-saturated capacity of the iron core. The utility model is a full-sealing structure, thus accomplishing the low partial discharge, prolonging the useful life of the product, and meeting the requirement for fire control of the indoor transformer. The size is nearly half of that of the original transformer with the same parameter. The occupation space and the material are saved.
Description
Technical field
The utility model relates to a kind of transformer, particularly relates to the special-purpose control transformer of a kind of totally-enclosed electric railway.
Background technology
At present China's electrified railway remodelling project increases day by day, and the electric railway control section need be controlled transformation and finishes, and this just needs the miniature transformer of 27.5KV registration, and present this transformer mainly is import.
The utility model content
The purpose of this utility model provides that a kind of volume is little, low-loss, anti-saturation and the high control transformer of coefficient of safety.
The technical scheme that adopts is:
A kind of control transformer comprises epoxy package body, iron core, winding, secondary winding and a mounting seat.The port type iron core of iron core for adopt notch cuttype laminating technology integral body to turn to by silicon steel sheet, the winding and the secondary winding of corresponding A, B phase are wrapped in respectively on the epoxy fibreglass skeleton, and interlayer adopts PMP paper insulation, and primary winding coils is divided the coiling of two sections tower shapes.Once being installed on the stem stem of port type iron core of corresponding A, B phase with corresponding respectively nexine of secondary winding and skin.Iron core, winding, a secondary winding are encapsulated in the epoxy package body, and the two ends of winding lead-in wires passes two epoxy resin king-posts on the one-time formed epoxy package body respectively, and connect with corresponding primary connection screw respectively.The lower surface of epoxy package body is fixed on the mounting seat.Epoxy package body lower sides is provided with the secondary connection plate, and the two ends outlet of secondary winding is connected with corresponding wiring terminal on the secondary connection plate respectively.
Advantage of the present utility model is:
1, adopts the full-closed structure (no oiling, put for low innings, the environment-friendly products of easy care) of epoxide resin vacuum cast.
Lamination before 2, iron core has changed, and the silicon steel sheet that adopts high magnetic property adopts notch cuttype laminating technology integral body to turn to hollow, through vacuum paint dipping, The high temperature anneal, no-load loss has descended 60% than now, promptly reach low-loss, saved the energy, and also strengthened the anti-saturation ability of iron core.
3, winding and secondary winding and iron core have all added shielding process, and a secondary winding and iron core all be cast in epoxy resin inside, are all-sealed structure, make product reach low office and put requirement, have increased the useful life of product.
4, all materials useds of product are H level heat proof material, satisfy the fire protection requirement of fire-fighting to indoor transformer.
5, the original same parameter transformer of volume ratio is little near half, saved the occupation of land space, and saved material.
6, magnetic is close has reduced 20% than original transformer in its design, has increased the anti-saturation performance of iron core, has strengthened coefficient of safety.
7, the coil-winding support adopts the epoxy fibreglass skeleton, and interlayer adopts high insulating property, the PMP paper that low office puts, and primary winding divides the coiling of two sections tower shapes, has reduced interlayer electric field strength, and also the office of greatly reducing is high-volume for this.
Its important technological parameters is as follows:
1) electric pressure: 27.5KV
2) voltage ratio: 27.5/0.23KV
3) capacity: 10KVA
4) frequency: 50Hz
5) device classification: indoor
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the present utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment
A kind of control transformer comprises epoxy package body 8, winding 2 of corresponding A, B phase and secondary winding 5, iron core 7 and by the dress base.
The square shape iron core of iron core 7 for turning to by silicon steel sheet integral body; Winding 2 coils of corresponding A, B phase are divided into two sections tower shapes and are wound on skeleton 3 of epoxy fibreglass, the coil winding of the secondary winding 5 of corresponding A, B phase is on epoxy fibreglass secondary skeleton 6, and the pitch of the laps interlayer of winding 2 and secondary winding 5 is provided with PMP paper insulation respectively; Winding 2 of corresponding A, B phase and the corresponding respectively nexine of secondary winding 5 and outer being installed on the stem stem of port type iron core 7.Port type iron core 7, winding 2 and secondary winding 5 are encapsulated in the epoxy package body 8, and filling epoxy resin constitutes main insulation 4; A phase terminal epoxy resin king-post 11 and B phase terminal epoxy resin king-post 12 are arranged on epoxy package body 8 upper surfaces, being fixed with the terminal block 9 of secondary winding outlet on epoxy package body 8 lower sides, fixedlys connected with mounting seat 10 in the lower surface of epoxy package body 8.The two ends of winding 2 coils lead-in wire passes respectively behind A phase terminal epoxy resin king-post 11 and the phase terminal epoxy resin king-post 12 respectively with corresponding primary connection screw 13 and is connected with primary connection screw 1.The two ends outlet of secondary winding 5 coils is connected with corresponding wiring terminal on the secondary winding outlet terminal block 9 respectively.
Claims (1)
1. a control transformer comprises a winding (2), secondary winding (5), iron core (7) and mounting seat (10), it is characterized in that:
The port type iron core of described iron core (7) for turning to by silicon steel sheet integral body; A winding (2) coil divides two sections tower shapes to be wound on the skeleton of epoxy fibreglass (3), and the coil winding of secondary winding (5) is on epoxy fibreglass secondary skeleton (6); The coil interlayer of a winding (2) and secondary winding (5) is provided with PMP paper respectively; A winding (2) and the corresponding respectively nexine of secondary winding (5) and skin are installed on the stem stem of iron core (7); A winding (2), secondary winding (5) and iron core (7) are filled and are encapsulated in the epoxy package body (8) by epoxy resin; A phase terminal epoxy resin king-post (11) and B phase terminal epoxy resin king-post (12) are arranged on epoxy package body (8) upper surface, being fixed with terminal block (9) on epoxy package body (8) lower sides, fixedlys connected with mounting seat (10) in the lower surface of epoxy package body (8); A winding (2) coil two ends lead-in wires is connected with terminal screw (1) with terminal screw (13) respectively after passing A phase terminal epoxy resin king-post (11) and B phase terminal epoxy resin king-post (12) respectively; Secondary winding (5) coil two ends outlet is connected with corresponding wiring terminal on the terminal block (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202477698U CN201562535U (en) | 2009-11-03 | 2009-11-03 | Control transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202477698U CN201562535U (en) | 2009-11-03 | 2009-11-03 | Control transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201562535U true CN201562535U (en) | 2010-08-25 |
Family
ID=42627686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202477698U Expired - Fee Related CN201562535U (en) | 2009-11-03 | 2009-11-03 | Control transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201562535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019010729A1 (en) * | 2017-07-13 | 2019-01-17 | 深圳市艾尔曼医疗电子仪器有限公司 | Insulated encapsulated transformer |
| CN109861015A (en) * | 2019-03-14 | 2019-06-07 | 汉中集联电气工程科技有限公司 | A kind of portable anti-corrosion aluminium core track lead of railway and application method |
-
2009
- 2009-11-03 CN CN2009202477698U patent/CN201562535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019010729A1 (en) * | 2017-07-13 | 2019-01-17 | 深圳市艾尔曼医疗电子仪器有限公司 | Insulated encapsulated transformer |
| CN109861015A (en) * | 2019-03-14 | 2019-06-07 | 汉中集联电气工程科技有限公司 | A kind of portable anti-corrosion aluminium core track lead of railway and application method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105185539A (en) | Insulation dry-type transformer of 20kV voltage class | |
| CN201667277U (en) | Amorphous alloy epoxy dry transformer | |
| CN203232785U (en) | Dry-type transformer | |
| CN203232797U (en) | Epoxy pouring dry type transformer | |
| CN202230838U (en) | Reeled-core dry-type transformer | |
| CN201562535U (en) | Control transformer | |
| CN110491659A (en) | 66kV(110kV) voltage class wind power generation boosting transformer | |
| CN203377069U (en) | Coil of rolled iron core transformer | |
| CN204857392U (en) | Novel anti ware of high -power high frequency electric of five posts of three -phase | |
| CN214279763U (en) | Axial double-split single-phase dry-type transformer | |
| CN201708012U (en) | Resin-cast rectangular dry-type transformer | |
| CN205080994U (en) | Insulating dry -type transformer of 20kV electric pressure | |
| CN202285190U (en) | Small-sized energy-saving dry-type transformer | |
| CN203013483U (en) | Efficient silence non-crystal dry type transformer | |
| CN201307502Y (en) | Epoxy resin dry-type rectiformer with 35 kilovolt | |
| CN200972825Y (en) | Combined mutual inductor | |
| CN2809820Y (en) | Resin insulated noncrystalline alloy dry type transformer | |
| CN201681708U (en) | Transformer body insulating mechanism for dry type epoxy resin power transformer | |
| CN204834310U (en) | Metallic glass resin insulating transformer | |
| CN208570307U (en) | Single-phase dry type high frequency transformer | |
| CN203733602U (en) | Three-phase and three-column amorphous alloy oil-immersed transformer | |
| CN208737997U (en) | Single-phase solar energy contravariant transformer | |
| CN201213087Y (en) | Heat radiating construction for reactor | |
| CN2671095Y (en) | H-stage drying electrical transformer structure | |
| CN202352485U (en) | Step-up transformer for photovoltaic power generation |
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: 20100825 Termination date: 20151103 |
|
| EXPY | Termination of patent right or utility model |