A double-layer cast busbar T-joint structure
By designing a double-layer cast busbar T-connection structure, using horizontal T-connection and vertical elbow connection, combined with a disk head connection device, the T-connection problem of generator outlet excitation transformer is solved, and a safe and reliable electrical connection between the double-layer cast busbar and the excitation transformer is achieved.
Patent Information
- Application Number
- CN202421462087.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-25
AI Technical Summary
In large-scale power generation projects, the rated current of the generator circuit exceeds the maximum rated current of the cast busbar, resulting in T-connection problems of the generator outlet excitation transformer.
A double-layer cast busbar T-connection structure is designed, and the horizontal T-connection of the cast busbar is connected below each layer of the double-layer cast busbar and is connected to the vertical elbow of the cast busbar. Finally, the electrical connection between the double-layer cast busbar and the excitation transformer is realized through the pan head connection device.
It realizes a safe and reliable electrical connection between the double-layer casting busbar and the excitation transformer, solving the problem that the traditional single-layer casting busbar cannot be connected to the excitation change, and the device is simple and easy to operate, saving materials.
Smart Images
Figure CN222749319U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the electrical field, in particular to a double-layer cast busbar T-joint structure. Background Art
[0002] Casting busbars are widely used in engineering applications due to their small size, flexible installation, lifelong maintenance-free, high reliability, outstanding electrical and mechanical properties, etc. However, due to technical limitations, the maximum current level of cast busbars is currently 3150A, while the rated current of a 100MW generator is 5.774kA. If cast busbar outlets are still used, two layers of 3150 cast busbars are required, i.e. 2×3150A. Usually, the excitation transformer is T-connected to the generator outlet, and the busbar is arranged on the top and the excitation transformer is on the bottom. The traditional single-layer cast busbar can be directly T-connected, but when the 2×3150A busbar is used, the upper busbar cannot be T-connected to the excitation transformer due to the obstruction of the lower busbar.
[0003] With the increasing application of cast busbars in large-scale power generation projects, it is inevitable that the rated current of the generator circuit exceeds the maximum rated current of the cast busbar. If the cast busbar solution is still used, two layers of cast busbars need to be arranged in parallel, which will cause the T-connection problem of the generator output excitation transformer. In response to this problem, the utility model proposes a double-layer cast busbar T-connection device solution and implements it in the project. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in view of the problems encountered in the project, the utility model proposes a T-connection solution suitable for a double-layer busbar structure.
[0005] The technical solution of the utility model is specifically as follows:
[0006] A double-layer cast busbar T-joint structure comprises a double-layer cast busbar, wherein each layer of the double-layer cast busbar is connected with a cast busbar horizontal T-joint below, the other end of the cast busbar horizontal T-joint is connected to a cast busbar vertical elbow, the other end of the cast busbar vertical elbow is connected to a pan head connection device, and the pan head connection device is used for the electrical connection between the double-layer cast busbar and an excitation transformer.
[0007] The cast busbar horizontal T-joint means that the two interfaces of the joint are in a horizontal state; the cast busbar vertical elbow means that the two interfaces of the joint are in a vertical state.
[0008] The beneficial effects of the utility model are as follows: the utility model has the following advantages: the device is simple and easy to operate, saves materials, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1The front view of the utility model;
[0010] Figure 2 A side view of the utility model. DETAILED DESCRIPTION
[0011] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0012] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0013] This utility model patent proposes a solution to the problems encountered in the implementation of a certain combined heat, cooling and power project.
[0014] like Figure 1 As shown, a double-layer cast busbar T-joint structure includes a double-layer cast busbar 1, and a cast busbar horizontal T-joint 2 is connected under each layer of the double-layer cast busbar 1. The other end of the cast busbar horizontal T-joint 2 is connected to the cast busbar vertical elbow 3, and the other end of the cast busbar vertical elbow 3 is connected to a pan head connection device 4. The pan head connection device 4 is used for the electrical connection between the double-layer cast busbar 1 and the excitation transformer 5.
[0015] The casting busbar horizontal T-joint 2 means that the two interfaces of the joint are in a horizontal state.
[0016] The cast busbar vertical elbow 3 means that the two interfaces of the joint are in a vertical state.
[0017] The working principle of the utility model is:
[0018] First, at the T-junction of the double-layer cast busbar 1, two cast busbar horizontal T-joints 2 are used to connect the main busbar T, and then two cast busbar vertical elbows 3 are used to connect the horizontal T-joints of the upper cast busbar and the lower cast busbar respectively. Finally, a pan head connection device 4 is used to connect the double-layer cast busbar 1 to the excitation transformer 5.
[0019] Prospects for promotion and application: This device is simple, easy to operate, saves materials, and is safe and reliable.
[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.
Claims
1. A double-layer cast busbar T-joint structure, characterized in that: The invention comprises a double-layer cast busbar (1), wherein a cast busbar horizontal T-joint (2) is connected below each layer of busbars of the double-layer cast busbar (1), the other end of the cast busbar horizontal T-joint (2) is connected to a cast busbar vertical elbow (3), the other end of the cast busbar vertical elbow (3) is connected to a pan head connection device (4), and the pan head connection device (4) is used for electrically connecting the double-layer cast busbar (1) to an excitation transformer (5).
2. A double-layer cast busbar T-joint structure according to claim 1, characterized in that: The cast busbar horizontal T-joint (2) means that the two interfaces of the joint are in a horizontal state; the cast busbar vertical elbow (3) means that the two interfaces of the joint are in a vertical state.