A side surface mounting structure of a measuring transformer
By measuring the side mounting structure of the current transformer, using flexible wires and fixing bolts instead of copper busbars, and combining this with a protective door design, the problems of high cost, low efficiency, and inconvenient maintenance of traditional installation methods were solved, achieving cost savings, space optimization, and safety assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HCRT ELECTRICAL EQUIP
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-31
AI Technical Summary
The traditional front-mounted method of measuring current transformers results in a large amount of copper busbars, increasing equipment costs, inefficient space utilization, inconvenient maintenance, and safety hazards.
The instrument transformer adopts a side-mounted structure, uses flexible wires instead of copper busbars for electrical connection, and is equipped with a protective door and lock. It is installed in the low-voltage cabinet by fixing bolts.
It reduces equipment manufacturing costs, improves space utilization, simplifies maintenance processes, enhances safety, and reduces the risk of accidental contact.
Smart Images

Figure CN224582689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power equipment technology, and more specifically, to a side mounting structure for a measuring transformer. Background Technology
[0002] Low-voltage power systems are a crucial component of the power grid, responsible for distributing electrical energy to users and ensuring the power needs of households, businesses, and industries. Within low-voltage power systems, power communication conduits serve as critical components, bearing the heavy responsibility of protecting cables and ensuring uninterrupted power communication. In low-voltage power systems, measuring transformers are key devices for measuring electrical parameters such as voltage and current.
[0003] Traditional measuring transformers are mostly front-mounted, which requires a large number of copper busbars for electrical connections. Copper busbars are expensive, and their extensive use increases equipment manufacturing costs. Furthermore, front-mounting is not efficient in terms of space utilization; in the limited space of a low-voltage switchgear, it hinders compact equipment layout and causes inconvenience for later maintenance. Therefore, we propose a side-mounting structure for measuring transformers. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a side mounting structure for a measuring transformer. This utility model achieves the goals of saving copper busbar usage, improving space utilization, reducing equipment costs, and facilitating equipment maintenance by changing the installation method.
[0006] Technical solution
[0007] To solve the above problems, the present invention adopts the following technical solution:
[0008] A side-mounted structure for a measuring instrument transformer includes a low-voltage cabinet, in which a measuring instrument transformer body and a connecting assembly are disposed. The measuring instrument transformer body is mounted on the connecting assembly, and the connecting assembly is mounted in the low-voltage cabinet by fixing bolts.
[0009] In a preferred embodiment of this utility model, the electrical connection terminal of the measuring transformer body is connected to an external circuit via a flexible wire.
[0010] As a preferred embodiment of this utility model, a protective door is provided on the left side of the low-pressure cabinet.
[0011] As a preferred embodiment of this utility model, a hinge is installed on the left side of the low-pressure cabinet, and the protective door is rotatably connected to the left side of the low-pressure cabinet via the hinge.
[0012] As a preferred embodiment of this utility model, a door lock is installed on the left side of the low-pressure cabinet, and the door lock is detachably connected to the protective door.
[0013] Beneficial effects
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) Cost savings: Changing the installation location and electrical connection method of the measuring transformer reduces the use of copper busbars and lowers the manufacturing cost of the equipment. The use of flexible conductors is also less expensive than copper busbars and busbar trunking.
[0016] (2) Space optimization: The side installation method makes the internal space layout of the low-voltage cabinet more compact, especially suitable for low-voltage cabinets with limited space, effectively improving space utilization and making the equipment layout in the low-voltage cabinet more reasonable.
[0017] (3) Easy maintenance: The measuring transformer adopts a simple fixed bolt installation method, which makes installation and disassembly easy and facilitates the maintenance and replacement of the measuring transformer in the later stage, reducing the maintenance difficulty and cost.
[0018] (4) Safety protection: The installation of protective doors and locks can prevent personnel from accidentally touching the equipment, protect the safety of operators, and improve the safety of equipment operation. Attached Figure Description
[0019] Figure 1 This is the first perspective view of the present invention;
[0020] Figure 2 This is a second perspective view of the present invention;
[0021] Figure 3 This is a rear view of the present invention;
[0022] Figure 4 This is the left view of the present invention.
[0023] Explanation of the labels in the diagram:
[0024] 1. Low-voltage cabinet; 2. Measuring transformer body; 3. Connecting components; 4. Protective door; 5. Hinges; 6. Door lock. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0026] Example:
[0027] Please see Figures 1-4 A side-mounted structure for a measuring transformer includes a low-voltage cabinet 1, a measuring transformer body 2 and a connecting assembly 3 disposed inside the low-voltage cabinet 1, the measuring transformer body 2 being mounted on the connecting assembly 3, and the connecting assembly 3 being mounted inside the low-voltage cabinet 1 by fixing bolts.
[0028] In this embodiment, the measuring transformer body 2 is installed on the inner side wall of the low-voltage cabinet 1 through the connecting component 3. In the specific installation process, the mounting holes are first opened on the side of the low-voltage cabinet 1 according to the design requirements. The mounting holes on the side of the measuring transformer body 2 are aligned with the mounting holes on the side of the low-voltage cabinet 1. The fixing bolts are passed through these two mounting holes and the fixing bolts are tightened with a wrench or other tools, thereby firmly fixing the measuring transformer body 2 to the side of the low-voltage cabinet 1.
[0029] Specifically, the electrical connection terminals of the measuring transformer body 2 are connected to the external circuit via flexible wires.
[0030] In this embodiment, the electrical connection terminal of the measuring transformer body 2 is connected to the external circuit via a flexible wire. During connection, one end of the flexible wire is reliably connected to the electrical connection terminal of the measuring transformer body 2, and the other end is connected to the corresponding position of the external circuit to ensure the stability of the electrical connection.
[0031] Specifically, a protective door 4 is installed on the left side of the low-voltage cabinet 1.
[0032] In this embodiment, a protective door 4 is provided on the left side of the low-pressure cabinet 1, which facilitates sealing.
[0033] Specifically, a hinge 5 is installed on the left side of the low-voltage cabinet 1, and the protective door 4 is rotatably connected to the left side of the low-voltage cabinet 1 via the hinge 5.
[0034] In this embodiment, the hinge 5 is used to facilitate the rotation of the protective door 4.
[0035] Specifically, a door lock 6 is installed on the left side of the low-voltage cabinet 1, and the door lock 6 is detachably connected to the protective door 4.
[0036] In this embodiment, the door lock 6 is used to facilitate securing the protective door 4.
[0037] Operating principle: During normal use, the protective door 4 is closed and locked to prevent unauthorized personnel from accessing the internal equipment of the low-voltage cabinet 1. When maintenance or repair of the measuring transformer body 2 is required, the operator uses a special key to open the door lock 6 and opens the protective door 4 through the hinge 5 to perform the relevant operations. After the operation is completed, the protective door 4 is closed and the door lock 6 is locked to ensure the safe operation of the equipment.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A side-mounted structure for measuring current transformers, comprising a low-voltage cabinet (1), characterized in that: The low-voltage cabinet (1) is provided with a measuring transformer body (2) and a connecting assembly (3). The measuring transformer body (2) is installed on the connecting assembly (3). The connecting assembly (3) is installed in the low-voltage cabinet (1) by fixing bolts. The electrical connection terminal of the measuring transformer body (2) is connected to the external circuit via a flexible wire; A protective door (4) is provided on the left side of the low-pressure cabinet (1). A hinge (5) is installed on the left side of the low-voltage cabinet (1), and the protective door (4) is rotatably connected to the left side of the low-voltage cabinet (1) through the hinge (5). A door lock (6) is installed on the left side of the low-pressure cabinet (1), and the door lock (6) is detachably connected to the protective door (4).