CN214848001U - Current transformer device - Google Patents
Current transformer device Download PDFInfo
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- CN214848001U CN214848001U CN202120544863.0U CN202120544863U CN214848001U CN 214848001 U CN214848001 U CN 214848001U CN 202120544863 U CN202120544863 U CN 202120544863U CN 214848001 U CN214848001 U CN 214848001U
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Abstract
The application relates to the field of mutual inductors and discloses a current transformer device, include casing and interval and install the coil in the casing, the coil includes the mixcrystal iron core that the measurement was used and protection was used and around locating the outer enameled copper line of mixcrystal iron core, the mixcrystal iron core is integrated into one piece. The application has the following advantages and effects: the shell supports the coil, and the combined crystal iron core formed integrally enables the same coil to have two functions of measurement and protection at the same time, so that a plurality of coils are not needed, and the limitation of the current transformer is reduced.
Description
Technical Field
The application relates to the technical field of mutual inductors, in particular to a current mutual inductor device.
Background
A current transformer is the most important sensor for power monitoring, and is mainly composed of a magnetic core (iron core) and an input/output coil.
The magnetic core of the current transformer is usually ultra-microcrystal or silicon steel, wherein the ultra-microcrystal is usually used for measuring and sensing, and the silicon steel is used for relay protection; current transformers today usually have two coils with magnetic cores, one with ultra-microcrystalline magnetic cores for measurement; and the other adopts a silicon steel magnetic core for protection.
Therefore, the current transformer of the present invention has the limitation that it can only be used as a measuring transformer or only as a protection transformer, and thus still needs to be improved.
SUMMERY OF THE UTILITY MODEL
In order to reduce the limitations of current transformers, the present application provides a current transformer apparatus.
The application provides a current transformer device adopts following technical scheme:
the utility model provides a current transformer device, includes that casing and interval install the coil in the casing, the coil includes the mixcrystal iron core of measuring usefulness and protection and around locating the outer enameled copper line of mixcrystal iron core, the mixcrystal iron core is integrated into one piece.
Through adopting above-mentioned technical scheme, the casing supports the coil, makes same coil possess simultaneously through integrated into one piece's brilliant iron core that closes and measure and use and protect with two kinds of functions, need not to adopt a plurality of coils from this, has reduced current transformer's limitation.
Further: and current output ports which correspond to the crystal-combination iron cores and can lead out lines are arranged on the side wall of the shell at intervals.
By adopting the technical scheme, the current output ports are respectively arranged on the side wall of the shell corresponding to the crystal-combination iron cores, so that the circuit can be led out from the current output ports.
Further: and a first output line which penetrates through the current output port and outputs 5A current is connected to the crystal combination iron core.
By adopting the technical scheme, the standard circuit with the output current of 5A is led out from the crystal combination iron core, and the standard of the output of the current transformer adopting 5A is mainly the anti-interference requirement, because under the same electromagnetic environment, the larger the useful signal is, the stronger the anti-interference capability is.
Further: and the crystal combination iron core is connected with a second output line which penetrates through the current output port and has a current ratio of 200:5 with the first output line.
By adopting the technical scheme, the second output line is arranged, the transformation ratio range of the current is expanded, and the application range of the current transformer is expanded.
Further: and the crystal combination iron core is connected with a third output line which penetrates through the current output port and has a current ratio of 400:5 with the first output line.
By adopting the technical scheme, the third output line is arranged, the transformation ratio range of the current is expanded, and the application range of the current transformer is expanded.
Further: and the crystal combination iron core is connected with a fourth output line which penetrates through the current output port and has a current ratio of 600:5 with the first output line.
By adopting the technical scheme, the fourth output line is arranged, the transformation ratio range of the current is expanded, and the application range of the current transformer is expanded.
Further: the enameled copper wire is wound and coated on the crystal-combined iron core along the axis direction parallel to the crystal-combined iron core.
By adopting the technical scheme, the enameled copper wire is usually composed of the conductor and the insulating layer, has mechanical properties, chemical properties, electrical properties and thermal properties, is wound on the crystal-combined iron core and is coated on the crystal-combined iron core, so that the magnetic force is enhanced, and the electric conductivity is improved.
Further: the inner diameter of the crystal combination iron core is 60-80mm, the outer diameter is 110-120mm, and the height is 35-45 mm.
Further: the inner diameter of the crystal combination iron core is 70mm, the outer diameter of the crystal combination iron core is 113mm, and the height of the crystal combination iron core is 40 mm.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Description of reference numerals: 1. a housing; 11. reinforcing ribs; 2. a coil; 21. a crystal-combined iron core; 22. enamelling copper wires; 3. a current output port; 31. an insulating shed; 4. a first output line; 5. a second output line; 6. a third output line; 7. a fourth output line.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a current transformer device. Referring to fig. 1 and 2, a current transformer device includes a housing 1 and coils 2 installed in the housing 1 at intervals along an extending direction of the housing 1, wherein the coils 2 include a crystal-combination iron core 21 for measurement and protection, and the crystal-combination iron core 21 is annular; a plurality of reinforcing ribs 11 are circumferentially formed at two ends of the housing 1 and on the side wall between the spaced coils 2, and the reinforcing ribs 11 are arranged at intervals along the extending direction of the housing 1.
Referring to fig. 2, the inner diameter of the combined crystal iron core 21 may be 60-80mm, the outer diameter may be 110-120mm, and the height may be 35-45mm, in this embodiment, the inner diameter of the combined crystal iron core 21 is 70mm, the outer diameter is 113mm, and the height is 40 mm; the combined crystal iron core 21 is formed by integrally forming a silicon steel iron core and an ultracrystalline iron core with the volume ratio of 2: 1; through the combined crystal iron core 21, the same coil 2 has two functions of measurement and protection synchronously, the precision range of the protection is +/-0.5%, the precision range of the silicon steel iron core used conventionally is +/-3%, the precision is improved to some extent, and the protection is facilitated.
Referring to fig. 1 and 2, the coil 2 further includes an enameled copper wire 22 wound outside the crystal-combined iron core 21, and the enameled copper wire 22 is wound around and covers the crystal-combined iron core 21 along an axis direction parallel to the crystal-combined iron core 21, which is helpful for enhancing magnetic force and improving electrical conductivity.
Referring to fig. 1 and 2, a current output port 3 which is corresponding to the crystal-combined iron core 21 and can lead out a line is installed on the side wall of the shell 1 at intervals, a plurality of insulating sheds 31 are circumferentially formed on the side wall of the current output port 3 and can provide a required creepage distance, and the insulating sheds 31 are arranged at intervals along the length direction of the current output port; the first output line 4 penetrating the current output port 3 and outputting current 5A is connected to the crystal combination iron core 21.
Referring to fig. 2, one side of the first output line 4 on the crystal combination iron core 21 is connected with a second output line 5 which penetrates through the current output port 3 and has a current ratio of 200:5 with the first output line 4; one side of the crystal combination iron core 21, which is positioned on the first output line 4 and the second output line 5, is connected with a third output line 6 which penetrates through the current output port 3 and has a current ratio of 400:5 with the first output line 4; a fourth output line 7 with the current ratio of 600:5 to the first output line 4 is connected to one side of the first output line 4, the second output line 5 and the third output line 6 on the crystal combination iron core 21; different current transformation ratios are obtained by using the first output line 4 in cooperation with the second output line 5, the third output line 6 and the fourth output line 7 respectively.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. A current transformer device comprises a shell (1) and a coil (2) installed in the shell (1) at intervals, and is characterized in that: coil (2) including measurement with the protective brilliant iron core (21) of combining and around locating the enameled copper wire (22) outside the brilliant iron core (21), it is integrated into one piece to combine brilliant iron core (21).
2. A current transformer arrangement according to claim 1, characterized in that: and a current output port (3) which corresponds to the crystal-combination iron core (21) and can lead out a line is arranged on the side wall of the shell (1) at intervals.
3. A current transformer arrangement according to claim 2, characterized in that: and a first output line (4) which penetrates through the current output port (3) and outputs current of 5A is connected to the crystal combination iron core (21).
4. A current transformer arrangement according to claim 3, characterized in that: and the crystal combination iron core (21) is connected with a second output line (5) which penetrates through the current output port (3) and has a current ratio of 200:5 with the first output line (4).
5. A current transformer arrangement according to claim 3, characterized in that: and a third output line (6) which penetrates through the current output port (3) and has a current ratio of 400:5 with the first output line (4) is connected to the crystal combination iron core (21).
6. A current transformer arrangement according to claim 3, characterized in that: and the crystal combination iron core (21) is connected with a fourth output line (7) which is arranged in the current output port (3) in a penetrating way and has a current ratio of 600:5 with the first output line (4).
7. A current transformer arrangement according to claim 1, characterized in that: the enameled copper wire (22) is wound and coated on the crystal combination iron core (21) along the axis direction parallel to the crystal combination iron core (21).
8. A current transformer arrangement according to claim 1, characterized in that: the inner diameter of the crystal combination iron core (21) is 60-80mm, the outer diameter is 110-120mm, and the height is 35-45 mm.
9. A current transformer arrangement according to claim 8, wherein: the inner diameter of the crystal combination iron core (21) is 70mm, the outer diameter is 113mm, and the height is 40 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120544863.0U CN214848001U (en) | 2021-03-16 | 2021-03-16 | Current transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120544863.0U CN214848001U (en) | 2021-03-16 | 2021-03-16 | Current transformer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848001U true CN214848001U (en) | 2021-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120544863.0U Active CN214848001U (en) | 2021-03-16 | 2021-03-16 | Current transformer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848001U (en) |
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2021
- 2021-03-16 CN CN202120544863.0U patent/CN214848001U/en active Active
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