CN219958765U - High-capacity outdoor 35kV voltage transformer - Google Patents
High-capacity outdoor 35kV voltage transformer Download PDFInfo
- Publication number
- CN219958765U CN219958765U CN202321124700.2U CN202321124700U CN219958765U CN 219958765 U CN219958765 U CN 219958765U CN 202321124700 U CN202321124700 U CN 202321124700U CN 219958765 U CN219958765 U CN 219958765U
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- China
- Prior art keywords
- secondary coil
- primary
- voltage transformer
- iron core
- coil
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000004804 winding Methods 0.000 description 10
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a high-capacity 35kV outdoor voltage transformer, which comprises: the hollow silicon rubber shell is internally provided with an annular iron core, the annular iron core is wound with a primary coil, one end of the primary coil is connected with one end of a connecting wire, the other end of the connecting wire is connected with a primary wiring terminal A, and the other end of the primary coil is connected with a primary large N end; the annular iron core is also wound with a secondary coil, one end of the secondary coil is connected with a secondary coil positive terminal, and the other end of the secondary coil is connected with a secondary coil negative terminal; the primary large N end, the secondary coil positive terminal and the secondary coil negative terminal are all fixed on a wiring board on the side face of the shell, and a wiring box for preventing electricity theft and sealing is arranged on the outer side of the wiring board. The utility model has the advantages of large secondary capacity, small volume, low material consumption and low equipment cost, and improves the safety and the installation simplicity of the voltage transformer.
Description
Technical Field
The utility model relates to the field of power measurement equipment, in particular to a high-capacity 35kV outdoor voltage transformer.
Background
The basic structure of the voltage transformer is very similar to that of a transformer, and the voltage transformer also comprises two windings, namely a primary winding and a secondary winding. Both windings are mounted on or wound around the core. Insulation is arranged between the two windings and between the windings and the iron core, so that electrical isolation is arranged between the two windings and between the windings and the iron core. When the voltage transformer is in operation, the primary winding N1 is connected in parallel with the circuit, and the secondary winding N2 is connected in parallel with the instrument or the relay. The existing outdoor voltage transformer has the problems of large volume, complex installation, high cost and the like.
Disclosure of Invention
Aiming at the problems, the utility model provides the 35kV voltage transformer which has the advantages of small volume, light weight, large capacity, simple structure and convenient installation and maintenance.
In order to achieve the above object, the present utility model provides a high-capacity 35kV outdoor voltage transformer, comprising: the hollow silicon rubber shell is internally provided with an annular iron core, the annular iron core is wound with a primary coil, one end of the primary coil is connected with one end of a connecting wire, the other end of the connecting wire is connected with a primary wiring terminal A, and the other end of the primary coil is connected with a primary large N end;
the annular iron core is also wound with a secondary coil, one end of the secondary coil is connected with a secondary coil positive terminal, and the other end of the secondary coil is connected with a secondary coil negative terminal; the primary large N end, the secondary coil positive terminal and the secondary coil negative terminal are all fixed on a wiring board on the side face of the shell, and a wiring box for preventing electricity theft and sealing is arranged on the outer side of the wiring board;
the base is installed to the bottom of shell, the base is including being close to the first base of terminal box place shell side and keep away from the second base of terminal box place shell side.
Preferably, epoxy resin is poured into the shell.
In the preferred mode, the annular iron core is made of coiled silicon steel sheets.
Preferably, the first base and the second base are symmetrically arranged at the bottom of the shell.
The beneficial effects of the utility model are as follows: the utility model has the advantages of large secondary capacity, small volume, low material consumption and low equipment cost, improves the safety and the installation simplicity of the voltage transformer, and is a safe and reliable voltage transformer easy to install.
Drawings
FIG. 1 is a front view of the present utility model;
FIG. 2 is a left side view of the present utility model;
fig. 3 is a top view of the present utility model.
In the figure: 1. a primary wiring terminal A; 2. a connecting wire; 3. a primary coil; 4. a secondary coil; 5. an annular iron core; 6. a secondary wiring terminal; 7. a primary large N end; 8. and (5) a base.
Detailed Description
Specific examples:
as shown in fig. 1, 2 and 3, the utility model provides a high-capacity 35kV outdoor voltage transformer, a primary wiring terminal A of the high-capacity 35kV outdoor voltage transformer is connected with a primary coil through a connecting wire, the primary coil penetrates through an annular iron core to determine the number of penetration turns, and the primary wiring terminal A is welded at a primary large N end. The secondary coil is uniformly wound on the annular iron core, the secondary coil is connected with a secondary wiring terminal, and primary secondary insulation is performed to ensure that the secondary coil can bear power frequency withstand voltage of 5kV. The mutual inductor is formed by casting an epoxy resin material, and is externally hung with silicone rubber for outdoor use; the utility model mainly increases the carrying capacity of the secondary load, namely the secondary capacity is large.
The annular iron core is a coiled silicon steel sheet iron core, shielding treatment can be carried out in the annular iron core, and the partial discharge level meets the international requirements; the fully-enclosed structure has the iron core and the coil enclosed inside. The outside is hung with silicone rubber, has fine hydrophobicity and does not have, and outdoor use is resisted ultraviolet resistance, improves mutual-inductor life.
The utility model adopts a fully-closed structure, has the advantages of large secondary capacity, small volume, light weight, low material consumption, low equipment cost, simple structure, convenient installation and maintenance, improves the safety and the installation simplicity of the voltage transformer, and is a dry voltage transformer suitable for the requirement of the voltage transformer on a 35kV outdoor column.
The application conditions of the utility model are as follows: the method is suitable for being used on 35kV outdoor columns. The application environment of the utility model is as follows: load power factor cos phi = 0.8 (hysteresis); the ambient temperature is between-40 ℃ and 70 ℃; the daily average temperature is not higher than 30 ℃; the altitude is not more than 3000m.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should be covered by the protection scope of the present utility model by making equivalents and modifications to the technical solution and the inventive concept thereof.
Claims (4)
1. A high capacity 35kV outdoor voltage transformer, comprising: the hollow silicon rubber shell is internally provided with an annular iron core, the annular iron core is wound with a primary coil, one end of the primary coil is connected with one end of a connecting wire, the other end of the connecting wire is connected with a primary wiring terminal A, and the other end of the primary coil is connected with a primary large N end;
the annular iron core is also wound with a secondary coil, one end of the secondary coil is connected with a secondary coil positive terminal, and the other end of the secondary coil is connected with a secondary coil negative terminal; the primary large N end, the secondary coil positive terminal and the secondary coil negative terminal are all fixed on a wiring board on the side face of the shell, and a wiring box for preventing electricity theft and sealing is arranged on the outer side of the wiring board;
the base is installed to the bottom of shell, the base is including being close to the first base of terminal box place shell side and keep away from the second base of terminal box place shell side.
2. The high capacity 35kV outdoor voltage transformer of claim 1, wherein the housing is molded with epoxy resin.
3. The high-capacity 35kV outdoor voltage transformer according to claim 1, wherein the annular iron core is made of coiled silicon steel sheets.
4. The high capacity 35kV outdoor voltage transformer of claim 1, wherein the first base and the second base are symmetrically installed at the bottom of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124700.2U CN219958765U (en) | 2023-05-11 | 2023-05-11 | High-capacity outdoor 35kV voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124700.2U CN219958765U (en) | 2023-05-11 | 2023-05-11 | High-capacity outdoor 35kV voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219958765U true CN219958765U (en) | 2023-11-03 |
Family
ID=88554569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321124700.2U Active CN219958765U (en) | 2023-05-11 | 2023-05-11 | High-capacity outdoor 35kV voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219958765U (en) |
-
2023
- 2023-05-11 CN CN202321124700.2U patent/CN219958765U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |