A fixed metering cabinet

Abstract

The utility model relates to a fixed type metering cabinet, including the cabinet body, the cabinet body is separated with first installation chamber and second installation chamber through first baffle, be equipped with the busbar and current transformer in the first installation chamber, and current transformer is connected with the busbar, be equipped with voltage transformer in the second installation chamber, and voltage transformer is connected with the fuse, and the fuse is connected with the busbar. The utility model adopts and fixes the current transformer and voltage transformer to install in the two installation chambers of cabinet body respectively, compares the existing handcart type metering cabinet, and the traditional handcart is saved, and the contact does not need to connect the busbar, thereby the space that the handcart occupies is saved, makes it not be restricted by the space of switch equipment, therefore the capacity of current transformer and voltage transformer can be bigger, saves the cost, satisfies actual use demand.

Description

Technical Field

[0001] This utility model relates to the field of metering cabinet technology, specifically to a fixed metering cabinet. Background Technology

[0002] Metering cabinets are important electrical equipment that play a role in measuring electrical energy in power systems. Due to the continuous growth in electricity demand, the capacity and size of the current transformers inside the metering cabinets also need to be increased. Currently, most metering cabinet solutions adopt the metering cart mode for application.

[0003] In existing handcart-type metering cabinets, the current transformers and voltage transformers are installed on the metering handcart, which is connected to the busbars inside the cabinet via moving and stationary contacts. Because the metering cart occupies a large space in this type of cabinet, the equipment installation inside is quite cramped. Due to space limitations imposed by the switchgear inside the cabinet, the capacity of the current and voltage transformers is relatively small, which cannot meet actual usage requirements. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a fixed metering cabinet that eliminates the need for a handcart. Current transformers and voltage transformers are fixedly installed inside the cabinet, providing more installation space compared to a handcart. This allows for the installation of transformers with larger capacity and size, saving costs and meeting usage requirements.

[0005] This utility model is achieved through the following technical solution: a fixed metering cabinet includes a cabinet body, the cabinet body is divided into a first installation chamber and a second installation chamber by a first partition, the first installation chamber is provided with a busbar and a current transformer, the current transformer is connected to the busbar, the second installation chamber is provided with a voltage transformer, the voltage transformer is connected to a fuse, and the fuse is connected to the busbar.

[0006] This solution involves fixing the current transformer and voltage transformer in two separate mounting chambers within the cabinet. Compared to existing handcart-type metering cabinets, this eliminates the need for a traditional handcart and contact busbars, thus saving space occupied by the handcart and freeing it from the space limitations of switchgear. Consequently, the capacity of the current transformer and voltage transformer can be increased, saving costs and meeting actual usage requirements.

[0007] As an optimization, the first partition extends along the long axis of the cabinet. This optimization divides the cabinet into two parts along its long axis, thereby providing more installation space in each installation chamber and facilitating personnel operation.

[0008] As an optimization, an insulator is installed in the first installation chamber, and a copper busbar connects the current transformer to the insulator. The fuse is connected to the copper busbar. In this optimized solution, the fuse is connected to the current transformer via the copper busbar. Since the current transformer is connected to the busbar, the fuse is indirectly connected to the busbar, reducing the line length and saving costs.

[0009] As an optimization, the busbar includes an upper branch and a lower branch, both of which are connected to a current transformer. This optimization scheme reduces the busbar volume and saves more space by distributing the busbars.

[0010] As an optimization, a third installation chamber is separated from the first installation chamber by a second partition, and the upper branch row is located in the third installation chamber. This optimized solution improves safety by isolating the two branch rows through the second partition.

[0011] As an optimization, a busbar bushing connecting both sides is installed on the second partition. This optimized solution connects the two installation chambers through the busbar bushing, facilitating the connection of the upper branch to the current transformer.

[0012] As an optimization, the space of the third installation chamber is 1 / 3 to 1 / 2 of the space of the first installation chamber. This optimization scheme limits the space of the third installation chamber and improves the utilization rate of the internal space.

[0013] As an optimization, a fourth installation chamber is created within the second installation chamber by a third partition, and the voltage transformer is located in the fourth installation chamber. This optimized solution isolates the voltage transformer using the third partition, creating two independent spaces within the second installation chamber for easier utilization.

[0014] As an optimization, the space of the fourth installation chamber is 1 / 4 to 1 / 3 of the space of the second installation chamber. This optimization scheme limits the space of the fourth installation chamber and improves the utilization rate of the internal space.

[0015] The beneficial effects of this utility model are as follows: By fixing the current transformer and voltage transformer separately in two mounting chambers of the cabinet, compared with the existing handcart-type metering cabinet, the traditional handcart is eliminated, and the contact connection busbar is not required, thereby saving the space occupied by the handcart and improving space utilization. It is not limited by the space of the switching equipment, so the capacity of the current transformer and voltage transformer can be larger, saving costs and meeting actual usage needs; The first and second installation chambers are further separated into independent spaces by the second and third partitions, which improves the utilization rate of cabinet space, ensures internal safety, and facilitates personnel operation. Attached Figure Description

[0016] Figure 1 This is a side view of the internal structure of this utility model; As shown in the figure: 1. Cabinet, 2. First partition, 3. First installation chamber, 4. Second installation chamber, 5. Upper branch, 6. Lower branch, 7. Current transformer, 8. Voltage transformer, 9. Second partition, 10. Third installation chamber, 11. Third partition, 12. Fourth installation chamber, 13. Busbar bushing, 14. Insulator, 15. Fuse. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0018] like Figure 1 As shown, a fixed metering cabinet includes a cabinet body 1. The cabinet body 1 is divided into a first installation chamber 3 and a second installation chamber 4 by a first partition 2. In this embodiment, the cabinet body 1 has a cuboid structure. The first partition 2 is a vertical plate extending along the long axis of the cabinet body 1. The upper and lower ends of the first partition 2 are fixedly connected to the top and bottom of the cabinet body 1, respectively, dividing the interior of the cabinet body 1 into two installation chambers, thus providing each installation chamber with a larger installation space and facilitating personnel operation.

[0019] The first installation chamber 3 is equipped with a busbar and a current transformer 7, and the current transformer 7 is connected to the busbar. Specifically, a mounting bracket is fixedly connected to the side wall of the cabinet 1 opposite to the first partition 2 in the first installation chamber 3, and the current transformer 7 is fixedly installed on the mounting bracket.

[0020] The busbar includes an upper branch 5 and a lower branch 6, both of which are connected to the current transformer 7. In this embodiment, the upper branch 5 has a straight-line structure, and the lower branch 6 has an L-shaped structure, reducing space occupation and allowing the first mounting chamber 3 to accommodate a larger capacity current transformer 7. The upper branch 5 and lower branch 6 are arranged along the height direction of the cabinet 1, and are respectively fixed to the upper and lower sides of the current transformer 7.

[0021] A third installation chamber 10 is separated from the first installation chamber 3 by a second partition 9. The space of the third installation chamber 10 is 1 / 3 to 1 / 2 of the space of the first installation chamber 3, and the upper branch row 5 is located in the third installation chamber 10. In this embodiment, the second partition 9 has an L-shaped structure and extends along the long axis of the cabinet 1. The upper end of the L-shaped second partition 9 is fixed to the top of the cabinet 1, and the horizontal end of the second partition 9 is fixed to the first partition 2. The second partition 9 isolates the two branch rows, improving safety. In this embodiment, the space of the third installation chamber 10 is 1 / 3 of the space of the first installation chamber 3. By limiting the space of the third installation chamber 10, the internal space utilization rate of the first installation chamber 3 is improved.

[0022] In this embodiment, a busbar bushing 13 connecting both sides is installed on the second partition 9. The busbar bushing 13 connects the third installation chamber 10 and the first installation chamber 3, facilitating the connection between the upper branch 5 and the current transformer 7.

[0023] Specifically, the terminals of the upper branch 5 are connected to one end of the busbar bushing 13 via a copper busbar, and the other end of the busbar bushing 13 is connected to the terminals of the current transformer 7 via a copper busbar. The terminals of the lower branch 6 are directly connected to the terminals of the current transformer 7 via a copper busbar.

[0024] A voltage transformer 8 is installed in the second installation chamber 4, and a fuse 15 is connected to the voltage transformer 8. The fuse 15 is connected to the busbar. Specifically, a fourth installation chamber 12 is separated from the second installation chamber 4 by a third partition 11. The space of the fourth installation chamber 12 is 1 / 4 to 1 / 3 of the space of the second installation chamber 4, and the voltage transformer 8 is located in the fourth installation chamber 12. In this embodiment, the third partition 11 is a horizontal plate extending along the long axis of the cabinet 1. The two ends of the third partition 11 are fixed to the first partition 2 and the rear side wall of the cabinet 1, respectively. The voltage transformer 8 is isolated by the third partition 11, so that the second installation chamber 4 forms two independent spaces for convenient use. In this embodiment, the space of the fourth installation chamber 12 is 1 / 3 of the space of the second installation chamber 4.

[0025] Since the voltage transformer 8 is located inside the fourth installation chamber 12, the space of the second installation chamber 4 located above the fourth installation chamber 12 is vacant, thus improving the utilization rate of the internal space of the second installation chamber 4.

[0026] An insulator 14 is provided in the first installation chamber 3. The insulator 14 is fixed to the first partition 2 and is positioned opposite to the current transformer 7. A copper busbar is connected between the current transformer 7 and the insulator 14. The fuse 15 is connected to the copper busbar.

[0027] In this embodiment, the voltage transformer 8 is fixed to the bottom of the fourth mounting chamber 12 via a mounting bracket, and the fuse 15 is located in the first mounting chamber 3. The terminals of the voltage transformer 8 are connected to one end of the fuse 15 via a copper busbar passing through the first partition 2. The other end of the fuse 15 is connected to the copper busbar between the current transformer 7 and the insulator 14. The fuse 15 is connected to the current transformer 7 via the copper busbar. Since the current transformer 7 is connected to the busbar, the fuse 15 is indirectly connected to the busbar, reducing the line length and saving costs.

[0028] This invention employs a method where the current transformer 7 and voltage transformer 8 are respectively fixedly installed in two mounting chambers of the cabinet 1, eliminating the need for a traditional handcart and contact busbars, thus saving space occupied by the handcart. Therefore, the capacity of the current transformer 7 and voltage transformer 8 can be increased. Since a handcart is not required, the space in the second mounting chamber 4, located above the fourth mounting chamber 12, is vacant. This space can be used to install metering instruments, providing more installation space for instruments, improving space utilization, and freeing it from the space limitations of switchgear, thus meeting practical usage requirements.

[0029] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A fixed metering cabinet, comprising a cabinet body (1), wherein the cabinet body (1) is divided into a first installation chamber (3) and a second installation chamber (4) by a first partition (2), wherein a busbar and a current transformer (7) are provided in the first installation chamber (3), the current transformer (7) being connected to the busbar, and a voltage transformer (8) is provided in the second installation chamber (4), wherein a fuse (15) is connected to the voltage transformer (8), the fuse (15) being connected to the busbar; An insulator (14) is provided in the first installation chamber (3). A copper busbar is connected between the current transformer (7) and the insulator (14). The fuse (15) is connected to the copper busbar. The second installation chamber (4) is divided into a fourth installation chamber (12) by a third partition (11). The voltage transformer (8) is located in the fourth installation chamber (12). The space of the fourth installation chamber (12) is 1 / 4 to 1 / 3 of the space of the second installation chamber (4).

2. The fixed metering cabinet according to claim 1, characterized in that: The first partition (2) extends along the long axis of the cabinet (1).

3. The fixed metering cabinet according to claim 1 or 2, characterized in that: The busbar includes an upper branch (5) and a lower branch (6), both of which are connected to a current transformer (7).

4. The fixed metering cabinet according to claim 3, characterized in that: The first installation chamber (3) is divided into a third installation chamber (10) by a second partition (9), and the upper branch row (5) is located in the third installation chamber (10).

5. The fixed metering cabinet according to claim 4, characterized in that: The second partition (9) is provided with a busbar bushing (13) that connects the two sides.

6. The fixed metering cabinet according to claim 4, characterized in that: The space of the third installation chamber (10) is 1 / 3 to 1 / 2 of the space of the first installation chamber (3).

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