CN203799852U - Indoor voltage transformer - Google Patents
Indoor voltage transformer Download PDFInfo
- Publication number
- CN203799852U CN203799852U CN201420128535.2U CN201420128535U CN203799852U CN 203799852 U CN203799852 U CN 203799852U CN 201420128535 U CN201420128535 U CN 201420128535U CN 203799852 U CN203799852 U CN 203799852U
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- CN
- China
- Prior art keywords
- winding
- shielding layer
- screen
- primary
- binding post
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- 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
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Abstract
An indoor voltage transfer comprises an insulating shell, a primary side and a secondary side. The primary side comprises a first wiring terminal, a second wiring terminal and a primary coil. The first wiring terminal is connected with one end of the first shielding layer of a first winding which winds the primary coil through a wire. The other end of the first shielding layer is connected with the first winding of the primary coil. The first winding winds a framework. One side of the second wiring terminal is of a symmetrical structure. The windings at two ends of the second wiring terminal are connected through a connecting section winding. The second coil of the secondary side sleeves an annular iron core. A third shielding layer winds the annular iron core. The secondary coil is correspondingly connected with the secondary wiring terminal. The primary coil sleeves the secondary coil. The two shielding layers of the primary side are high-voltage shielding layers. The third shielding layer is a low-voltage shielding layer. The transformer is high in load capacity, high in capacitivity, low in partial discharge magnitude, stable and reliable in performance and simple in structure.
Description
Technical field
The utility model belongs to voltage transformer field, and particularly a kind of indoor voltage transformer, is applicable to
Exchange 50Hz, in rated voltage 10kV circuit, voltage supplied, electric energy measurement and relaying protection are used.
Background technology
The indoor voltage transformer using in the market exists iron loss large conventionally, and product data are bad, and the problem of unstable properties can cause measuring range little, and the scope of application is little, and product office is high-volume large.
Utility model content
The purpose of this utility model is to provide a kind of indoor voltage transformer, and this instrument transformer is simple in structure, and load capacity is large, and performance is more stable.
The technical scheme adopting is:
A kind of indoor voltage transformer, comprises insulation shell, primary side and secondary side.
Its technical essential is:
Primary side comprises the first binding post, the second binding post and primary winding.The first binding post, the second binding post are primary connection terminal, and are arranged on insulation shell surface.
By wire, first screen one end on the first winding of primary winding is connected the first binding post with winding, and the first screen other end connects the first winding of primary winding, and the first winding winding is on skeleton.
By wire, the secondary shielding layer one end on the second winding of primary winding is connected the second binding post with winding, and the secondary shielding layer other end connects the second winding of primary winding, and the second winding winding is on skeleton.
The first winding is connected by linkage section winding with the second winding.
Secondary side comprises secondary coil.
Secondary coil is set on ring structure iron core, is arranged with the 3rd screen on ring structure iron core.The 3rd screen is between ring structure iron core and secondary coil.
Secondary coil is by lead-in wire connection corresponding to secondary wiring terminals.
Primary winding is set on secondary coil.
Primary winding, secondary coil, ring structure iron core, the first screen, secondary shielding layer and the 3rd screen are all positioned at insulation shell inside.
The first screen and secondary shielding layer are copper foil shielding layer.Copper foils for shielding layer thickness is 0.1mm.The 3rd screen is semiconductive wrinkle ply of paper.
Secondary wiring terminals is provided with electricity anti-stealing wiring cover outward.Insulation shell is fixed on base plate, offers installing hole on base plate.
Insulation shell upper surface is integrally formed with multiple umbrella shape projections.
The utility model is applicable to rated frequency 50HZ, in the indoor AC electric power systems of rated voltage 10KV, is used as to measure, measure and protect.
Its advantage is:
The utility model load capacity is large, excitation knee voltage is high, partial discharge quantity is little.
Ring structure iron core adopts cold-reduced silicon sheet coiling to form, and iron loss is little, magnetic is close low, and product data are good, stable performance.In order to increase metering, measuring range, can select ring structure iron core sheet wide thick with sheet, make the effective cross-section of ring structure iron core closer to circle, increase the net sectional area of ring structure iron core, can make like this can accomplish that load capacity is larger under identical overall dimensions.
Can ensure that the knee voltage of instrument transformer excitation property is greater than 1.9Um/ √ 3(Um=12KV simultaneously), in the process raising at system voltage, for metering, measurement and adaptive polarizing memory voltage time constant provide Reliable guarantee.Product has adopted high-pressure side and low-pressure end all to shield, can be effectively the dielectric shielding of electric discharge outside electric field, make product office high-volume little.Select mixture of epoxy resins cast to form, surface is glossy, it is clear to identify.Good looking appearance, improves surface creepage distance, stable and reliable for performance.Volume is little, lightweight, and base plate has installing hole, convenient installation.
Brief description of the drawings
Fig. 1 is half sectional view of the present utility model.
Embodiment
A kind of indoor voltage transformer, comprises insulation shell 4, primary side and secondary side.
Primary side comprises the first binding post 1, the second binding post 2 and primary winding 3.The first binding post 1, the second binding post 2 are primary connection terminal, and are arranged on insulation shell 4 surfaces.
By wire, first screen 5 one end on the first winding of primary winding 3 are connected the first binding post 1 with winding, and first screen 5 other ends connect the first winding of primary winding 3, and the first winding winding is on skeleton 6.
By wire, the secondary shielding layer one end on the second winding of primary winding 3 is connected the second binding post 2 with winding, and the secondary shielding layer other end connects the second winding of primary winding 3, and the second winding winding is on skeleton 6.
The first winding is connected by linkage section winding with the second winding.
Secondary side comprises secondary coil 7.
Secondary coil 7 is set on ring structure iron core 9, is arranged with the 3rd screen 8 on ring structure iron core 9.The 3rd screen 8 is between ring structure iron core 9 and secondary coil 7.
Secondary coil 7 is by lead-in wire connection corresponding to secondary wiring terminals 13.
Primary winding 3 is set on secondary coil 7.
Primary winding 3, secondary coil 7, ring structure iron core 9, the first screen 5, secondary shielding layer and the 3rd screen 8 are all positioned at insulation shell 4 inside.
The first screen 5, secondary shielding layer are high-tension shielding layer.High-tension shielding layer is copper foil shielding layer.Copper foils for shielding layer thickness is 0.1mm.
The 3rd screen 8 is low pressure screen.The 3rd screen 8 is semiconductive wrinkle ply of paper.
The outer electricity anti-stealing wiring cover 10 that is provided with of secondary wiring terminals 13.Insulation shell 4 is fixed on base plate 11, on base plate 11, offers installing hole.
Insulation shell 4 upper surfaces are integrally formed with multiple umbrella shape projections 12, increase creepage distance.
Claims (4)
1. an indoor voltage transformer, comprises insulation shell (4), primary side and secondary side; It is characterized in that:
Primary side comprises the first binding post (1), the second binding post (2) and primary winding (3); The first binding post (1), the second binding post (2) are primary connection terminal, and are arranged on insulation shell (4) surface;
By wire, the first screen (5) one end on the first winding of primary winding (3) is connected the first binding post (1) with winding, the first screen (5) other end connects the first winding of primary winding (3), and the first winding winding is on skeleton (6);
By wire, the secondary shielding layer one end on the second winding of primary winding (3) is connected the second binding post (2) with winding, and the secondary shielding layer other end connects the second winding of primary winding (3), and the second winding winding is on skeleton (6);
The first winding is connected by linkage section winding with the second winding;
Secondary side comprises secondary coil (7);
It is upper that secondary coil (7) is set in ring structure iron core (9), is arranged with the 3rd screen (8) on ring structure iron core (9); The 3rd screen (8) is positioned between ring structure iron core (9) and secondary coil (7);
Secondary coil (7) is by lead-in wire connection corresponding to secondary wiring terminals (13);
Primary winding (3) is set on secondary coil (7);
Primary winding (3), secondary coil (7), ring structure iron core (9), the first screen (5), secondary shielding layer and the 3rd screen (8) are all positioned at insulation shell (4) inside.
2. the indoor voltage transformer of one according to claim 1, is characterized in that: the first screen (5) and secondary shielding layer are copper foil shielding layer; Copper foils for shielding layer thickness is 0.1mm; The 3rd screen (8) is semiconductive wrinkle ply of paper.
3. the indoor voltage transformer of one according to claim 1 and 2, is characterized in that: the outer electricity anti-stealing wiring cover (10) that is provided with of secondary wiring terminals (13); It is upper that insulation shell (4) is fixed on base plate (11), and base plate offers installing hole on (11).
4. the indoor voltage transformer of one according to claim 3, is characterized in that: insulation shell (4) upper surface is integrally formed with multiple umbrella shape projections (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128535.2U CN203799852U (en) | 2014-03-21 | 2014-03-21 | Indoor voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420128535.2U CN203799852U (en) | 2014-03-21 | 2014-03-21 | Indoor voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799852U true CN203799852U (en) | 2014-08-27 |
Family
ID=51382047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420128535.2U Expired - Fee Related CN203799852U (en) | 2014-03-21 | 2014-03-21 | Indoor voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735484A (en) * | 2018-05-22 | 2018-11-02 | 贵州乌江水电开发有限责任公司构皮滩发电厂 | A kind of current transformer structure applied to high-rating generator |
| CN108987083A (en) * | 2018-07-16 | 2018-12-11 | 江阴市星火电子科技有限公司 | A kind of assembly technology of indoor open-close type mutual inductor |
-
2014
- 2014-03-21 CN CN201420128535.2U patent/CN203799852U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735484A (en) * | 2018-05-22 | 2018-11-02 | 贵州乌江水电开发有限责任公司构皮滩发电厂 | A kind of current transformer structure applied to high-rating generator |
| CN108987083A (en) * | 2018-07-16 | 2018-12-11 | 江阴市星火电子科技有限公司 | A kind of assembly technology of indoor open-close type mutual inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116200, Liaoning City, Dalian province Pulandian Taiping Office Home Industrial Zone Patentee after: Sino Canton electric appliance Limited by Share Ltd Address before: 116200, Liaoning City, Dalian province Pulandian Taiping Office Home Industrial Zone Patentee before: Dalian Zhongguang Instrument Transformer Co., Ltd. |
|
| 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: 20140827 Termination date: 20210321 |