CN221176064U - High-voltage vacuum circuit breaker with small capacity and high precision - Google Patents
High-voltage vacuum circuit breaker with small capacity and high precision Download PDFInfo
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- CN221176064U CN221176064U CN202322852146.6U CN202322852146U CN221176064U CN 221176064 U CN221176064 U CN 221176064U CN 202322852146 U CN202322852146 U CN 202322852146U CN 221176064 U CN221176064 U CN 221176064U
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- vacuum circuit
- circuit breaker
- flange plate
- high precision
- transformer
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- 238000009413 insulation Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of vacuum circuit breakers, and discloses a high-voltage vacuum circuit breaker with small capacity and high precision, which comprises a vacuum circuit breaker body, a connecting column and a connecting rod, wherein the connecting column comprises a pole column body and a connecting column body; the multi-turn type transformer is a totally-enclosed multi-turn type transformer and comprises a pair of insulating sleeves, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively connected with the pair of insulating sleeves, and the second connecting end is used for being connected with a wiring terminal of electric equipment; and one end of the connecting piece is connected with the first connecting end, and the other end of the connecting piece is connected with the connecting column of the vacuum circuit breaker. The utility model can realize the precision and output capacity of the mutual inductor, and can realize the requirements of small capacity and high precision.
Description
Technical Field
The utility model relates to the technical field of vacuum circuit breakers, in particular to a high-voltage vacuum circuit breaker with small capacity and high precision.
Background
The protection current transformer in the conventional ZW32 outdoor vacuum circuit breaker is a through type current transformer, the primary winding of the through type current transformer is one turn, when the transformation ratio of the transformer is very small, the ampere-turns number of the transformer cannot be ensured, and the precision and the output capacity of the transformer can be greatly reduced. In the prior art, only a 315KVA transformer and a vacuum circuit breaker with the capacity above are used, and a drop-out fuse is used below the 315KVA, but as the requirement of distribution network automation is improved, a small-capacity transformer gradually uses the vacuum circuit breaker, and as the primary rated current of the small-capacity transformer is very small, if a conventional ZW32 outdoor vacuum circuit breaker is matched with a pass-through type current transformer, the precision and the capacity of the current transformer cannot meet the requirement.
Disclosure of utility model
The utility model aims to provide a high-voltage vacuum circuit breaker with small capacity and high precision so as to solve the problems existing in the prior art.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a high-voltage vacuum circuit breaker with small capacity and high precision, which comprises:
The vacuum circuit breaker body comprises a pole body and a connecting column electrically connected with the pole body;
The multi-turn type transformer is a totally-enclosed multi-turn type transformer and comprises a pair of insulating sleeves, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively connected with the pair of insulating sleeves, and the second connecting end is used for being connected with a wiring terminal of electric equipment;
And one end of the connecting piece is connected with the first connecting end, and the other end of the connecting piece is connected with the connecting column of the vacuum circuit breaker.
Preferably, the connecting piece comprises a first flange plate and a second flange plate, the first flange plate is fixedly connected to the connecting column, the second flange plate is fixedly connected to the first connecting end, and the first flange plate is connected with the second flange plate.
Preferably, the first flange plate and the second flange plate are connected through bolts.
Preferably, the multi-turn transformer is fixedly connected to the base of the vacuum circuit breaker body through an insulating column.
Preferably, the insulating sleeve and the shell of the multi-turn transformer are of a pouring type integrated structure.
Preferably, the second connection end is a lower wire outlet terminal.
The utility model discloses the following technical effects: aiming at a small-capacity transformer, the utility model improves the structures of the existing vacuum circuit breaker and the complex-turn type transformer to ensure the precision and output capacity of the transformer, the middle of a connecting column (and a copper bar) led out from a pole body on the vacuum circuit breaker body is divided into two parts, the mode that the connecting column penetrates through the transformer in the prior art is abandoned, the complex-turn type transformer is connected with the pole body through a connecting piece, the current transformer in the prior art is changed into the complex-turn type transformer poured by epoxy resin, the problem that the primary winding of the core-through type current transformer used for application in the conventional vacuum circuit breaker is one turn is solved, when the transformer transformation ratio is very small, the safety of the transformer cannot be ensured, the precision and the output capacity of the transformer can be greatly reduced is solved, the precision and the capacity are ensured, and the requirements of small capacity and high precision are realized.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a low-capacity, high-precision high-voltage vacuum circuit breaker according to the present utility model;
Fig. 2 is a schematic structural view of a vacuum circuit breaker body according to the present utility model;
1, a vacuum circuit breaker body; 2. a pole body; 3. a connecting column; 4. a multi-turn transformer; 5. a first connection end; 6. a second connection end; 7. a first flange; 8. a second flange; 9. an insulating column; 10. and a base.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-2, the present utility model provides a low-capacity, high-precision high-voltage vacuum circuit breaker, comprising:
The vacuum circuit breaker body 1 comprises a pole body 2 and a connecting column 3 electrically connected with the pole body 2;
the multi-turn type transformer 4 is a totally-enclosed multi-turn type transformer 4, the multi-turn type transformer 4 comprises a pair of insulating sleeves, a first connecting end 5 and a second connecting end 6 which are respectively connected with the pair of insulating sleeves, and the second connecting end 6 is used for being connected with a wiring terminal of electric equipment;
And one end of the connecting piece is connected with the first connecting end 5, and the other end of the connecting piece is connected with the connecting column 3 of the vacuum circuit breaker.
Aiming at a small-capacity transformer, the utility model improves the structure of the existing vacuum circuit breaker and the complex-turn type transformer 4, separates the middle of a connecting column 3 (and a copper bar) led out from a pole column 2 on a vacuum circuit breaker body 1 into two parts, abandons the mode of penetrating the connecting column 3 through the transformer in the prior art, connects the complex-turn type transformer 4 with the pole column 2 through a connecting piece, changes the current transformer in the prior art into the complex-turn type transformer 4 poured by epoxy resin, avoids the problem that the primary winding of the core-through type current transformer used for application in the conventional vacuum circuit breaker is one turn, can not be ensured when the transformation ratio of the transformer is small, ensures the precision and the capacity of the transformer, and meets the requirements of small capacity and high precision.
Further optimizing scheme, the connecting piece includes first ring flange 7 and second ring flange 8, and first ring flange 7 rigid coupling is on spliced pole 3, and second ring flange 8 rigid coupling is on first link 5, and first ring flange 7 is connected with second ring flange 8.
The mode of connecting the first flange plate 7 and the second flange plate 8 can realize the quick connection between the multi-turn type transformer 4 and the pole body 2, and the installation efficiency is improved.
In a further preferred embodiment, the first flange 7 and the second flange 8 are connected by means of bolts.
In a further optimized scheme, the multi-turn transformer 4 is fixedly connected to the base 10 of the vacuum circuit breaker body 1 through an insulating column 9.
The insulation column 9 can stabilize the multi-turn type transformer 4 and can also play an insulation effect.
In a further optimization scheme, the insulating sleeve and the shell of the multi-turn type transformer 4 are of a pouring type integrated structure.
In a further preferred embodiment, the second connection end 6 is a lower outlet terminal.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (6)
1. A low capacity, high precision high voltage vacuum circuit breaker comprising:
The vacuum circuit breaker comprises a vacuum circuit breaker body (1) and a connecting column (3), wherein the vacuum circuit breaker body comprises a pole column body (2) and a connecting column (3) electrically connected with the pole column body (2);
The multi-turn type transformer (4), the multi-turn type transformer (4) is a totally-enclosed multi-turn type transformer, the multi-turn type transformer (4) comprises a pair of insulating sleeves, a first connecting end (5) and a second connecting end (6) which are respectively connected with the pair of insulating sleeves, and the second connecting end (6) is used for being connected with a wiring terminal of electric equipment;
And one end of the connecting piece is connected with the first connecting end (5), and the other end of the connecting piece is connected with the connecting column (3) of the vacuum circuit breaker.
2. A low capacity, high precision high voltage vacuum circuit breaker as claimed in claim 1 wherein: the connecting piece comprises a first flange plate (7) and a second flange plate (8), wherein the first flange plate (7) is fixedly connected to the connecting column (3), the second flange plate (8) is fixedly connected to the first connecting end (5), and the first flange plate (7) is connected with the second flange plate (8).
3. A low capacity, high precision high voltage vacuum circuit breaker as claimed in claim 2 wherein: the first flange plate (7) and the second flange plate (8) are connected through bolts.
4. A low capacity, high precision high voltage vacuum circuit breaker as claimed in claim 1 wherein: the multi-turn type transformer (4) is fixedly connected to a base (10) of the vacuum circuit breaker body (1) through an insulating column (9).
5. A low capacity, high precision high voltage vacuum circuit breaker as claimed in claim 4 wherein: the insulation sleeve and the shell of the multi-turn type transformer (4) are of a pouring type integrated structure.
6. A low capacity, high precision high voltage vacuum circuit breaker as claimed in claim 1 wherein: the second connecting end (6) is a lower outgoing terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322852146.6U CN221176064U (en) | 2023-10-24 | 2023-10-24 | High-voltage vacuum circuit breaker with small capacity and high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322852146.6U CN221176064U (en) | 2023-10-24 | 2023-10-24 | High-voltage vacuum circuit breaker with small capacity and high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221176064U true CN221176064U (en) | 2024-06-18 |
Family
ID=91460428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322852146.6U Active CN221176064U (en) | 2023-10-24 | 2023-10-24 | High-voltage vacuum circuit breaker with small capacity and high precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221176064U (en) |
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2023
- 2023-10-24 CN CN202322852146.6U patent/CN221176064U/en active Active
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