A transformer high-voltage plug-in head mounting structure

Abstract

The utility model discloses a transformer high pressure plug -in head mounting structure, including high pressure high seat, high pressure high seat connects on the oil tank of transformer, and high pressure plug -in head cylinder is connected on high pressure high seat, and high pressure plug -in head cylinder inside is connected with high pressure plug -in head, and high pressure high seat is provided with high voltage coil end lead -wire, and high voltage coil end lead -wire adopts the mode of width direction lead -out or axial lead -out and is directly connected with high pressure plug -in head. The utility model cancels the original oil -oil bushing high seat and oil -oil bushing between high pressure plug -in head cylinder and high pressure high seat, and high voltage coil end lead -wire is directly connected with high pressure plug -in head through the mode of width direction lead -out or axial lead -out, makes the wiring of transformer more simple, reduces the manufacturing and installation of oil -oil bushing and its high seat, the connection of oil -oil bushing and high voltage coil end lead -wire and high pressure plug -in head, and further reduces transformer oil and leakage hidden trouble point, improves production efficiency and saves manufacturing cost.

Description

Technical Field

[0001] This utility model belongs to the field of transformer technology, and specifically relates to a transformer high-voltage plug-in installation structure. Background Technology

[0002] The transformer's incoming line uses a 110kV high-voltage plug-in connector, which is typically connected to the transformer's high-voltage coil leads via an oil-oil bushing installed in the riser. The oil-oil bushing can be arranged horizontally or vertically. Figure 1 This is a schematic diagram of the existing transformer incoming line structure, such as... Figure 1 As shown, the oil-oil bushing is horizontally arranged. A high-voltage riser 2 is connected to the high-voltage side of the transformer tank cover. The high-voltage coil end lead 1 of the transformer is connected inside the high-voltage riser 2. The high-voltage coil end lead 1 is axially led out. An oil-oil bushing riser 4 is horizontally arranged on the riser 2. Transformer oil 3 is arranged in the oil-oil bushing riser 4. An oil-oil bushing 5 is installed inside the transformer oil 3. A high-voltage plug-in head cylinder 7 is connected to the oil-oil bushing riser 4. A high-voltage plug-in head lead 6 and a 110kV high-voltage plug-in head 8 are installed inside the high-voltage plug-in head cylinder 7. The high-voltage coil end lead 1 is connected to the high-voltage plug-in head lead 6 through the oil-oil bushing 5, thereby achieving the connection between the high-voltage coil end lead 1 and the 110kV high-voltage plug-in head 8. The above-mentioned transformer inlet method has the problem of complex inlet structure, resulting in high production cost and low transformer manufacturing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a transformer high-voltage plug-in installation structure, thereby overcoming the defect of complex transformer inlet structure. The specific technical solution is as follows: A transformer high-voltage plug-in head installation structure includes a high-voltage riser base connected to the transformer's oil tank. A high-voltage plug-in head cylinder is connected to the high-voltage riser base, and a high-voltage plug-in head is connected inside the high-voltage plug-in head cylinder. A high-voltage plug-in head lead is connected to the high-voltage plug-in head, and a high-voltage coil end lead is provided inside the high-voltage riser base. The high-voltage coil end lead is directly connected to the high-voltage plug-in head by means of radial or axial lead-out.

[0004] Preferably, the high-voltage riser is horizontally connected to the transformer's oil tank.

[0005] Preferably, the high-voltage riser is vertically connected to the transformer's oil tank.

[0006] Preferably, the high-voltage plug-in head includes a first cylinder and a second cylinder, the first cylinder and the second cylinder are vertically connected, the first cylinder is connected to the high-voltage riser, and the high-voltage plug-in head is connected inside the second cylinder.

[0007] Preferably, when the high-voltage coil end lead is placed in the horizontally arranged high-voltage riser, it is directly connected to the high-voltage plug-in head by being led out radially.

[0008] Preferably, when the high-voltage coil end lead is disposed in the vertically arranged high-voltage riser, it is directly connected to the high-voltage plug head by axial lead-out.

[0009] Preferably, an oil seal is provided at the connection between the high-pressure plug-in head and the high-pressure plug-in head.

[0010] This utility model discloses a transformer high-voltage plug-in head installation structure that directly connects the high-voltage riser base to the high-voltage plug-in head cylinder, eliminating the original oil-oil bushing riser base and oil-oil bushing between the high-voltage plug-in head cylinder and the high-voltage riser base. The high-voltage plug-in head is connected inside the high-voltage plug-in head cylinder, and the high-voltage coil end lead is located inside the high-voltage riser base, directly connected to the high-voltage plug-in head via radial or axial lead-out. Compared with existing technologies, the entire installation structure makes the transformer wiring simpler, safer, and more reliable. It also reduces the manufacturing and installation of the oil-oil bushing and its riser base, reduces the connection between the oil-oil bushing and the high-voltage coil end lead and the high-voltage plug-in head, reduces transformer oil consumption, reduces potential leakage points, improves production efficiency, and saves manufacturing costs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a schematic diagram of the existing transformer inlet structure; Figure 2 This is the transformer high-voltage plug mounting structure provided in Embodiment 1 of this utility model; Figure 3 This is the transformer high-voltage plug mounting structure provided in Embodiment 2 of this utility model. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0015] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0017] Example 1 A transformer high-voltage plug-in head installation structure includes a high-voltage riser base 2, which is connected to the transformer's oil tank. A high-voltage plug-in head cylinder 7 is connected to the high-voltage riser base 2, and a high-voltage plug-in head 9 is connected inside the high-voltage plug-in head. A high-voltage plug-in head lead wire is connected to the high-voltage plug-in head. A high-voltage coil end lead wire 1 is provided inside the high-voltage riser base 2. The high-voltage coil end lead wire 1 is directly connected to the high-voltage plug-in head 9 by means of radial or axial lead wire.

[0018] The high-voltage riser 2 is horizontally arranged and connected to the transformer's oil tank.

[0019] When the high-voltage coil end lead 1 is set in the horizontally arranged high-voltage riser 2, it is directly connected to the high-voltage plug 9 by a radial lead-out method.

[0020] An oil seal is provided at the connection between the high-pressure plug tube 7 and the high-pressure plug 2.

[0021] See Figure 1 and Figure 2 Compared with the prior art, in Embodiment 1, the high-voltage riser base is horizontally connected to the transformer's oil tank, and then the high-voltage plug-in head cylinder is directly connected to the high-voltage riser base. The high-voltage plug-in head cylinder is a vertical cylinder, and transformer oil 3 is installed inside the high-voltage riser base. The transformer high-voltage plug-in head installation structure in Embodiment 1 eliminates the original oil-oil bushing riser base and oil-oil bushing between the high-voltage plug-in head cylinder and the high-voltage riser base. The high-voltage plug-in head is connected inside the high-voltage plug-in head cylinder, and the high-voltage coil end lead is located inside the high-voltage riser base, directly connected to the high-voltage plug-in head through radial or axial lead-out. The original oil seal is retained at the connection between the high-voltage plug-in head cylinder 7 and the high-voltage plug-in head 2.

[0022] See Figure 1 and Figure 2 Compared with existing technologies, the entire installation structure makes the transformer wiring simpler, safer and more reliable. At the same time, it reduces the manufacturing and installation of oil-to-oil bushings and their riser bases, reduces the connection between oil-to-oil bushings and high-voltage coil end leads and high-voltage plugs, reduces transformer oil consumption, reduces potential leakage points, improves production efficiency and saves manufacturing costs.

[0023] Example 2 The difference from Embodiment 1 is that the high-voltage riser 2 is vertically connected to the transformer's oil tank. The high-voltage plug-in head 7 includes a first cylinder 71 and a second cylinder 72, which are vertically connected. The first cylinder 71 is connected to the high-voltage riser 2, and the high-voltage plug-in head 9 is connected inside the second cylinder 72. When the high-voltage coil end lead 1 is placed inside the vertically arranged high-voltage riser 2, it is directly connected to the high-voltage plug-in head 9 by axial extension. The first cylinder 71 of the high-voltage plug-in head is horizontally connected to the high-voltage riser 2, and transformer oil 3 is provided in the high-voltage riser 2.

[0024] In summary, the traditional structure involves multiple connection links for the oil-to-oil bushing and riser, requiring separate connections to the high-voltage coil and plug-in connector. The two transformer structures in Embodiments 1 and 2 reduce intermediate components, simplify the wiring steps, reduce the complexity of on-site installation for workers, and significantly shorten wiring time.

[0025] By reducing the number of connections between oil-oil bushings, high-voltage riser bases, high-voltage coil end leads, and plugs, the probability of wiring errors is reduced. At the same time, the potential for leakage from live parts is reduced, indirectly lowering electrical risks such as short circuits and leakage.

[0026] For processing, the factory side has reduced the production and assembly processes of oil-to-oil bushings and high-pressure risers, simplifying the production line process; at the same time, it has reduced the matching and debugging steps between components, reducing the rework rate in production.

[0027] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A transformer high-voltage plug mounting structure, characterized in that, The system includes a high-voltage riser base (2), which is connected to the oil tank of the transformer. A high-voltage plug-in head cylinder (7) is connected to the high-voltage riser base (2). A high-voltage plug-in head (9) is connected inside the high-voltage plug-in head cylinder (7). A high-voltage plug-in head lead (6) is connected to the high-voltage plug-in head (9). A high-voltage coil end lead (1) is provided inside the high-voltage riser base (2). The high-voltage coil end lead (1) is directly connected to the high-voltage plug-in head (9) by means of radial or axial lead-out.

2. The transformer high-voltage plug mounting structure according to claim 1, characterized in that, The high-voltage riser (2) is horizontally connected to the transformer's oil tank.

3. The transformer high-voltage plug mounting structure according to claim 1, characterized in that, The high-voltage riser (2) is vertically connected to the transformer's oil tank.

4. The transformer high-voltage plug mounting structure according to claim 3, characterized in that, The high-voltage plug-in head (7) includes a first cylinder (71) and a second cylinder (72), which are vertically connected. The first cylinder (71) is connected to the high-voltage riser (2), and the high-voltage plug-in head (9) is connected inside the second cylinder (72).

5. The transformer high-voltage plug mounting structure according to claim 2, characterized in that, When the high-voltage coil end lead (1) is set in the horizontally arranged high-voltage riser (2), it is directly connected to the high-voltage plug (9) by a radial lead-out method.

6. The transformer high-voltage plug mounting structure according to claim 3, characterized in that, When the high-voltage coil end lead (1) is placed inside the vertically arranged high-voltage riser (2), it is directly connected to the high-voltage plug (9) by axial lead-out.

7. The transformer high-voltage plug mounting structure according to claim 1, characterized in that, An oil seal is provided at the connection between the high-pressure plug tube (7) and the high-pressure plug (9).

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