Transformer terminal box

Abstract

The utility model relates to a transformer terminal box, in particular to a transformer terminal box. The transformer terminal box is mainly designed for solving the problems that an existing transformer terminal box is affected with damp, rusted and the like when windy and sandy or cold and humid and the like. The device comprises a box body, one side of the top of the box body is provided with a wire inlet, the wire inlet is in butt joint with a bridge, a wire inlet bin is arranged in the box body below the wire inlet, a side partition plate and a bottom plate of the wire inlet bin are connected with the inner wall of the box body, and the bottom plate of the wire inlet bin is inclined; a water outlet is formed in the box body corresponding to the lowest point of the wire inlet bin; a wire arrangement plate is arranged in the box body on the side of the wire inlet bin, and a secondary wire enters the wire inlet bin from a wire inlet in the top, extends out of a bottom plate of the wire inlet bin, is bent, is arranged on the wire arrangement plate and then is connected to a terminal node of each terminal strip; the two doors are arranged on the box body through hinges, the oil temperature meter is arranged on the inner wall of the upper door, and the terminal strip is arranged on the inner wall of the lower door. And double heaters and double grounding bars are arranged in the box body. The utility model has the advantage of being suitable for various severe environments such as damp, severe cold and sandstorm.

Description

Technical field:

[0001] The utility model relates to the field of transformers, in particular to a transformer terminal box which rationally utilizes the space inside the box and is highly effective and waterproof. Background technology:

[0002] Oil-immersed transformers are core components in substations, crucial for the normal operation of the power grid and serving as the "heart" of the power system. However, the external terminal boxes currently used in transformers are bulky, with uneven internal space distribution, chaotic wiring, and cable inlets located at the bottom of the box. This can lead to moisture, rust, and other contamination issues in windy, sandy, cold, and humid environments. Summary of the invention:

[0003] The technical problem to be solved by the utility model is to provide a transformer terminal box which has a reasonable internal layout, neat wiring and can withstand various harsh environments.

[0004] The utility model adopts the following technical solutions:

[0005] It includes a box body. The box body in conventional areas is made of 304 stainless steel, and the box body in coastal areas is made of 316L stainless steel. A wire inlet is provided on one side of the top of the box body, and the wire inlet is connected to the bridge. A wire inlet bin is provided in the box body below the wire inlet. The wire inlet bin includes side partitions and a bottom plate connected together. The side partitions and the bottom plate are both connected and fixed to the inner wall of the box. The bottom plate of the wire inlet bin gradually tilts downward from the inside to the outside, that is, the bottom plate of the wire inlet bin is tilted; a drainage outlet is provided on the box body at the lowest point of the wire inlet bin.

[0006] A cable tray is installed in the box on the side of the incoming line compartment. All secondary lines enter the incoming line compartment from the cable inlet on the top, then extend from the bottom plate of the incoming line compartment, bend, and then be arranged on the cable tray before being connected to the terminal nodes of each terminal block.

[0007] The box body is provided with an upper and a lower door, both doors are mounted on the box body through hinges, the oil temperature gauge is mounted on the inner wall of the upper door, and the terminal block is placed on the inner wall of the lower door.

[0008] There are double heaters and double grounding bars inside the box.

[0009] The advantages of this utility model are: it can effectively reduce the volume of the entire terminal box, the appearance is small and exquisite, safe and reliable, easy to promote, and can effectively reduce the manufacturing cost of the terminal box. The bridge is directly docked at the top of the terminal box, reducing the exposed part of the secondary line. It is suitable for various humid, hot, cold, windy and other harsh environments. The structure also has the characteristics of low cost, high utility, sensitive response, simplicity and ease, and has a wide range of applications. Description of the drawings:

[0010] Figure 1 This is a schematic diagram of the main internal structure of the utility model;

[0011] Figure 2 This is a left-side internal structure diagram of the present invention;

[0012] Figure 3 This is a rear view structural diagram of the utility model;

[0013] Figure 4 It is a structural layout diagram of the door of the present utility model;

[0014] Figure 5 It is the structural layout diagram of the box bottom of the utility model;

[0015] Figure 6 It is a main structural diagram of the present utility model. Specific implementation method:

[0016] The following combination Figure 1-6 Further explain the utility model;

[0017] It includes a box body 10. The box body in conventional areas is made of 304 stainless steel, and the box body in coastal areas is made of 316L stainless steel. A wire inlet 1 is provided on one side of the top of the box body. The wire inlet is connected to the bridge 2. A wire inlet bin 3 is provided in the box body below the wire inlet. The wire inlet bin includes side partitions and a bottom plate connected together. The side partitions and the bottom plate are both connected and fixed to the inner wall of the box. The bottom plate of the wire inlet bin gradually tilts downward from the inside to the outside, that is, the bottom plate of the wire inlet bin is inclined; a drain outlet 4 is provided on the box body at the lowest point of the wire inlet bin.

[0018] A cable tray 5 is installed in the box on the side of the incoming line compartment. All secondary wires enter the incoming line compartment from the cable inlet at the top, then extend from the bottom plate of the incoming line compartment, bend, and be arranged on the cable tray before being connected to the terminal nodes 6 of each terminal block 7.

[0019] The box body is provided with two doors 11, one above and one below, which are both mounted on the box body by hinges. The oil temperature gauge 12 is mounted on the inner wall of the upper door, and the terminal block 7 is placed on the inner wall of the lower door.

[0020] Double heaters 9 and double grounding bars 8 are provided inside the box.

[0021] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer terminal box, comprising a box body (10), a line inlet (1) provided on one side of the top of the box body, the line inlet being connected to a bridge (2), and characterized by: A wire inlet bin (3) is provided in the box below the wire inlet port. The wire inlet bin comprises a side partition and a bottom plate connected together. The side partition and the bottom plate are both fixedly connected to the inner wall of the box. The bottom plate of the wire inlet bin gradually tilts downward from the inside to the outside, that is, the bottom plate of the wire inlet bin is tilted. A drainage outlet (4) is provided on the box corresponding to the lowest point of the wire inlet bin. A wiring board (5) is provided in the box body on the side of the incoming wire compartment. All secondary wires enter the incoming wire compartment from the incoming wire port at the top, then extend from the bottom plate of the incoming wire compartment, are bent, and are arranged on the wiring board before being connected to the terminal nodes (6) of each terminal block (7). The box body is provided with two doors (11) at the top and bottom, both doors being mounted on the box body via hinges, an oil temperature gauge (12) being mounted on the inner wall of the upper door, and a terminal block (7) being placed on the inner wall of the lower door; Double heaters (9) and double grounding bars (8) are provided inside the box.

2. The transformer terminal box according to claim 1, characterized in that: The box body in conventional areas is made of 304 stainless steel, and the box body in coastal areas is made of 316L stainless steel.

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