Low-voltage incoming line cabinet with transformer side outgoing line
By setting up windings and copper strips in the transformer cabinet and using side connection methods, the copper strips are introduced into the wire cabinet and connected to the circuit breaker, the problems of difficult, high accuracy and high cost of bus connection are solved, and a flexible and stable connection method is achieved to meet different layout needs.
Patent Information
- Application Number
- CN202422381101.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In the prior art, the bus connection method between the transformer cabinet and the incoming cabinet is difficult, high accuracy requirements and high cost, especially in the case of limited space or special arrangement.
The low-voltage inlet cabinet design is adopted for the transformer side outgoing. By setting up multiple windings and copper rows in the transformer cabinet, and using side connections, the copper rows are introduced into the inlet cabinet, connected to the circuit breaker, and fixed with the positioning bracket and insulator, the stable transmission of the copper rows is achieved.
It realizes flexible connections in limited space or special layout scenarios, improves the accuracy and stability of the connection, reduces production costs, and adapts to different layout needs.
Smart Images
Figure CN223218653U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of incoming line cabinets, in particular to a low-voltage incoming line cabinet with transformer side outlets. Background Art
[0002] Currently, due to the technical solution's extremely large transformer capacity (SCB14-4000-10-0.4), the unusually large body size, volume, and weight, coupled with a 6300A low-voltage incoming circuit breaker and busbar specifications of TMY-4*[3*(150*12)]+2*(150*10), the A / B / C busbars for the low-voltage cabinet are located at the front of the cabinet top, and the N / PE busbars are located at the lower rear of the cabinet bottom. This busbar connection method typically requires on-site measurement, manual sketching, and assembly. This presents significant risks, including issues such as busbar (frame) support, flexible connector installation, busbar machining accuracy, and surveying accuracy, as well as significant difficulty and hidden production costs. Utility Model Content
[0003] In order to solve the above problems, the present technical solution provides a low-voltage incoming line cabinet with transformer side outlet.
[0004] To achieve the above purpose, the technical solution is as follows:
[0005] A low-voltage incoming line cabinet with transformer-side outgoing lines, comprising a transformer cabinet and an incoming line cabinet;
[0006] The transformer cabinet is provided with a plurality of windings, and the windings are provided with a first copper bar for inputting three-phase electric energy, and the first copper bar is led out from the side of the transformer cabinet;
[0007] The incoming line cabinet is provided with a circuit breaker. The first copper bar is led out and enters from the side of the incoming line cabinet and is connected to the upper contact of the circuit breaker. The lower contact of the circuit breaker is connected to the second copper bar, which is used to supply power to the load.
[0008] In some embodiments, a positioning bracket for positioning the first copper busbar is provided in the transformer cabinet.
[0009] In some embodiments, the first copper busbar is formed by stacking three copper busbars.
[0010] In some embodiments, the first copper busbar is fixed to the insulating plate via an insulator.
[0011] In some embodiments, each of the windings is provided with a terminal, and each of the terminal is connected by a conductive rod.
[0012] The beneficial effects of this application are:
[0013] This application uses a side-input, side-outlet connection method to connect the transformer cabinet and the incoming cabinet. This connection method is often used in scenarios where the incoming cabinet and transformer are close together, because it allows cables or busbars to enter the distribution cabinet from the side, rather than from the top or bottom. The advantage of the side-inlet connection method is its flexibility and ability to adapt to different layout requirements, especially in situations where space is limited or special arrangements are required. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.
[0015] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 ;
[0016] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the structure of the embodiment of the utility model Figure 3 . DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0019] Please refer to Figure 1-3 As shown, a low-voltage incoming line cabinet with transformer-side outgoing line includes a transformer cabinet 1 and an incoming line cabinet 2;
[0020] The transformer cabinet 1 is provided with a plurality of windings 3 inside. The windings 3 are provided with a first copper busbar 4 for inputting three-phase power. The first copper busbar 4 is led out from the side of the transformer cabinet 1.
[0021] The incoming line cabinet 2 is provided with a circuit breaker 5. The first copper busbar 4 is led out and enters from the side of the incoming line cabinet 2 and is connected to the upper contact of the circuit breaker 5. The lower contact of the circuit breaker 5 is connected to the second copper busbar 6, which is used to supply power to the load.
[0022] This application uses a side-input, side-outlet connection method to connect the transformer cabinet and the incoming cabinet. This connection method is often used in scenarios where the incoming cabinet and transformer are close together, because it allows cables or busbars to enter the distribution cabinet from the side, rather than from the top or bottom. The advantage of the side-inlet connection method is its flexibility and ability to adapt to different layout requirements, especially in situations where space is limited or special arrangements are required.
[0023] The advantages of this application are precision, accuracy, speed, economy, stability and beauty, and there is a transition busbar support method above the transformer body (the holes on the transformer body frame are used to fix the supporting frame, and the busbar frame is installed on the supporting frame, which is more stable than other fixing methods and saves the most copper bars), and a soft connection installation method (the end of the transition busbar on the low-voltage side of the transformer is connected to the beginning of the low-voltage incoming line cabinet. When the transformer is running, there is vibration force. At this time, the soft connection plays its due function, and the operation is more stable for the entire busbar system).
[0024] In this embodiment, a positioning bracket 7 for positioning the first copper busbar 4 is provided in the transformer cabinet 1 .
[0025] In this embodiment, the first copper busbar 4 is formed by stacking three copper busbars, and has a stronger bearing capacity.
[0026] In this embodiment, the first copper busbar 4 is fixed on the insulating plate 9 via the insulator 8, which is safer and more reliable.
[0027] In this embodiment, each winding 3 is provided with a connection terminal 10 , and each connection terminal 10 is connected by a conductive rod 11 to facilitate connection between windings.
[0028] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other embodiments whose principles and basic structures are the same or similar to those of the present application are within the scope of protection of the present application.
Claims
1. A low-voltage incoming line cabinet with transformer side outlet, characterized in that: It includes a transformer cabinet (1) and an incoming line cabinet (2); The transformer cabinet (1) is provided with a plurality of windings (3) inside, and the windings (3) are provided with a first copper bar (4) for inputting three-phase electric energy, and the first copper bar (4) is led out from the side of the transformer cabinet (1); The incoming line cabinet (2) is provided with a circuit breaker (5); the first copper bar (4) is led out and enters from the side of the incoming line cabinet (2) and is connected to the upper end contact of the circuit breaker (5); the lower end contact of the circuit breaker (5) is connected to the second copper bar (6); the second copper bar (6) is used to supply power to the load.
2. A low-voltage incoming line cabinet with transformer-side outlet according to claim 1, characterized in that: A positioning bracket (7) for positioning the first copper busbar (4) is provided in the transformer cabinet (1).
3. The low-voltage incoming line cabinet with transformer-side outlet according to claim 2, characterized in that: The first copper busbar (4) is formed by stacking three copper busbars.
4. The low-voltage incoming line cabinet with transformer-side outlet according to claim 3, characterized in that: The first copper busbar (4) is fixed on the insulating plate (9) via an insulator (8).
5. The low-voltage incoming line cabinet with transformer-side outlet according to claim 1, characterized in that: Each winding (3) is provided with a connection terminal (10), and each connection terminal (10) is connected via a conductive rod (11).