CN219958766U - Single-phase high-capacity voltage transformer with electric plug - Google Patents
Single-phase high-capacity voltage transformer with electric plug Download PDFInfo
- Publication number
- CN219958766U CN219958766U CN202321124701.7U CN202321124701U CN219958766U CN 219958766 U CN219958766 U CN 219958766U CN 202321124701 U CN202321124701 U CN 202321124701U CN 219958766 U CN219958766 U CN 219958766U
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- China
- Prior art keywords
- primary coil
- phase
- primary
- connecting rod
- voltage transformer
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003973 paint Substances 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a single-phase high-capacity voltage transformer with a plug, which comprises: the hollow shell is internally provided with an annular iron core, a primary coil and a secondary coil are wound in the annular iron core, the secondary coil is connected with a secondary wire outlet terminal, one end of the primary coil is connected with one end of a primary coil connecting rod A, the other end of the primary coil connecting rod A is connected with one end of an A-phase primary terminal, the other end of the A-phase primary terminal is connected with one end of an A-phase fuse, and the other end of the A-phase fuse is connected with a connector A; the other end of primary coil links to each other with primary coil connecting rod B's one end, primary coil connecting rod B's the other end links to each other with the one end of B looks primary terminal, the other end of B looks primary terminal links to each other with the one end of B looks fuse, the other end of B looks fuse is connected with connector B. The utility model 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 single-phase high-capacity voltage transformer with a power plug.
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 design of the single-phase high-capacity voltage transformer has the problems of complex structure, multiple consumables, high cost and the like.
Disclosure of Invention
Aiming at the problems, the utility model provides the single-phase high-capacity practical voltage transformer which is convenient to install, has higher use safety and is matched with the American 200A cable plug for use.
In order to achieve the above object, the present utility model provides an outdoor current transformer having a waterproof sealing function of a secondary junction box, comprising: the hollow shell is internally provided with an annular iron core, a primary coil and a secondary coil are wound in the annular iron core, the secondary coil is connected with a secondary wire outlet terminal, one end of the primary coil is connected with one end of a primary coil connecting rod A, the other end of the primary coil connecting rod A is connected with one end of an A-phase primary terminal, the other end of the A-phase primary terminal is connected with one end of an A-phase fuse, and the other end of the A-phase fuse is connected with a connector A;
the other end of primary coil links to each other with primary coil connecting rod B's one end, primary coil connecting rod B's the other end links to each other with the one end of B looks primary terminal, the other end of B looks primary terminal links to each other with the one end of B looks fuse, the other end of B looks fuse is connected with connector B.
Preferably, the interior of the housing is cast with epoxy resin for insulating isolation.
Preferably, the outer side of the housing is coated with a conductive paint for grounding.
In the preferred mode, the material of iron core is rolling type silicon steel sheet iron core.
The beneficial effects of the utility model are as follows: the utility model better meets the requirement of a user on large capacity on the basis of low material consumption and low equipment cost, and improves the safety and the installation simplicity of the voltage transformer.
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 phase B primary terminal; 2. a phase B fuse; 3. a phase A fuse; 4. a phase a primary terminal; 5. an annular iron core; 6. a secondary coil; 7. a primary coil connecting rod A; 8. a primary coil connecting rod B; 9. a primary coil; 10. a connector A; 11. a connector B; 12. and a secondary outlet terminal.
Detailed Description
Specific examples:
as shown in fig. 1, 2 and 3, the present utility model provides an outdoor current transformer having a waterproof sealing function of a secondary junction box, comprising: the hollow shell is internally provided with an annular iron core, a primary coil and a secondary coil are wound in the annular iron core, the secondary coil is connected with a secondary wire outlet terminal, one end of the primary coil is connected with one end of a primary coil connecting rod A, the other end of the primary coil connecting rod A is connected with one end of an A-phase primary terminal, the other end of the A-phase primary terminal is connected with one end of an A-phase fuse, and the other end of the A-phase fuse is connected with a connector A; the other end of primary coil links to each other with primary coil connecting rod B's one end, primary coil connecting rod B's the other end links to each other with the one end of B looks primary terminal, the other end of B looks primary terminal links to each other with the one end of B looks fuse, the other end of B looks fuse is connected with connector B.
When in use, the cable plugs are respectively inserted into the connector A and the connector B of the voltage transformer; the cable and the connector are well sealed, and the use requirement is met. The voltage transformer is internally poured with epoxy resin, and is externally sprayed with conductive paint to be grounded, so that the voltage transformer is convenient to install and has high use safety, and is widely applied to ring main units and inflatable cabinets.
The iron core used in the utility model adopts a coiled silicon steel sheet iron core, adopts a totally-enclosed structure, is internally shielded, is externally sprayed with conductive paint and is connected with the ground, and has no voltage on the surface during operation, so that the interference caused by external wiring can be prevented, and the partial discharge level meets the international requirements; the fully-closed structure has the advantages that the iron core and the coil are encapsulated inside, and the service life of the transformer can be prolonged.
The application conditions of the utility model are as follows: load power factor cos phi=0.8 (hysteresis), ambient temperature is between-30 ℃ and 40 ℃; the daily average temperature is not higher than 30 ℃; the altitude is not more than 1000m.
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 single-phase high-capacity voltage transformer with a cable plug, characterized in that it comprises: the hollow shell is internally provided with an annular iron core, a primary coil and a secondary coil are wound in the annular iron core, the secondary coil is connected with a secondary wire outlet terminal, one end of the primary coil is connected with one end of a primary coil connecting rod A, the other end of the primary coil connecting rod A is connected with one end of an A-phase primary terminal, the other end of the A-phase primary terminal is connected with one end of an A-phase fuse, and the other end of the A-phase fuse is connected with a connector A;
the other end of primary coil links to each other with primary coil connecting rod B's one end, primary coil connecting rod B's the other end links to each other with the one end of B looks primary terminal, the other end of B looks primary terminal links to each other with the one end of B looks fuse, the other end of B looks fuse is connected with connector B.
2. The single-phase high-capacity voltage transformer with the cable plug according to claim 1, wherein the interior of the housing is poured with epoxy resin for insulation and isolation.
3. The single-phase high-capacity voltage transformer with cable plug according to claim 1, wherein the outer side of the housing is coated with conductive paint for grounding.
4. The single-phase high-capacity voltage transformer with the plug type is characterized in that the iron core is made of coiled silicon steel sheet iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124701.7U CN219958766U (en) | 2023-05-11 | 2023-05-11 | Single-phase high-capacity voltage transformer with electric plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321124701.7U CN219958766U (en) | 2023-05-11 | 2023-05-11 | Single-phase high-capacity voltage transformer with electric plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219958766U true CN219958766U (en) | 2023-11-03 |
Family
ID=88546354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321124701.7U Active CN219958766U (en) | 2023-05-11 | 2023-05-11 | Single-phase high-capacity voltage transformer with electric plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219958766U (en) |
-
2023
- 2023-05-11 CN CN202321124701.7U patent/CN219958766U/en active Active
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| GR01 | Patent grant |