Wiring method of fully-sealed tubular bridge for transformer

Abstract

The invention relates to a fully-sealed tubular bridge wiring method for a transformer, and the method comprises the steps: enabling a cable to penetrate into a first junction box located on the outer side surface of an oil tank housing through a cable hose after being led out through a protection assembly, to enter a wiring tube through the first junction box, and to finally enter a terminal box of a transformer body through the wiring tube; the wiring pipe is further provided with a second junction box which is located at the turning position and used for improving wiring operability. Through the arrangement of the first junction box, the second junction box and the wiring pipe, a cable wiring channel is formed, wiring is integrated and simplified, and wiring traceability and maintenance are facilitated; the first junction boxes at different positions are integrally planned and arranged, so that wiring is regularized, and wiring traceability and maintenance are facilitated; through the arrangement of the independent modules, independent installation and replacement are facilitated, so that the production and installation processes are simplified, the cost is reduced, and meanwhile, the wiring convenience is improved.

Description

Technical Field

[0001] The invention relates to the field of machinery, in particular to the technical field of mechanical components, and specifically refers to a fully sealed tubular bridge wiring method for a transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, the secondary coil, and the iron core (magnetic core). In electrical equipment and wireless circuits, it is often used to increase or decrease voltage, match impedance, and provide safety isolation. In a generator, whether the coil moves through a magnetic field or the magnetic field moves through a fixed coil, an electric potential can be induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux interlinked with the coil changes. This is the principle of mutual induction. A transformer is a device that uses electromagnetic mutual induction to transform voltage, current, and impedance.

[0003] As the core equipment of the power system, the reliability of the secondary wiring system of the transformer directly affects the stability of the power system. In the prior art, the secondary wiring of the transformer body is complicated and cumbersome, which affects the wiring traceability and maintenance. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a fully sealed tubular bridge wiring method for a transformer, which integrates wiring, simplifies wiring, and facilitates wiring tracing and maintenance.

[0005] The present invention is achieved through the following technical scheme: a fully sealed tubular bridge wiring method for transformers. After the cable is led out through the protection component, it passes through the cable hose into the first junction box located on the outer side of the oil tank shell, enters the wiring tube through the first junction box, and finally enters the terminal box of the transformer body from the wiring tube. The wiring tube is also provided with a second junction box located at the turning point and used to improve the wiring operability. This preferred solution forms a wiring channel for the cable by disposing the first junction box, the second junction box, and the wiring tube, integrates the wiring, simplifies the wiring, and facilitates wiring traceability and maintenance.

[0006] Preferably, several transversely arranged first junction boxes are connected in sequence through transversely extending wiring tubes to form a main bridge line, and the first junction box located outside the main bridge line is connected to the first junction box located on the main line bridge through longitudinally or vertically extending wiring tubes.

[0007] This preferred solution makes wiring regular by overall planning and arranging the first junction boxes at different positions, thereby facilitating wiring traceability and maintenance.

[0008] Preferably, the first junction box, the second junction box and the wiring tube are all independent modules.

[0009] This preferred solution modularizes the first junction box, the second junction box, and the wiring tube through the provision of independent modules, which facilitates independent installation and replacement, thereby simplifying the production and installation process, reducing costs, and improving the convenience of wiring.

[0010] Preferably, the second junction box located at the inclined edge of the oil tank housing is arranged along the inclined direction of the edge.

[0011] The configuration of this preferred solution makes it easier for the second junction box to guide the cables along the shape of the oil tank shell, while also saving space.

[0012] Preferably, the first junction box and the second junction box each include a box body with a plurality of wiring openings, and a mounting hole provided on the box body for sealingly inserting cables, a box cover is provided on the end face of the wiring tube and is sealedly connected to the wiring opening, a sealing gasket is provided between the box body and the box cover, and the box body and the box cover are fixed by bolts.

[0013] The preferred solution ensures the sealing performance by setting the sealing connection between the box body and the box cover, thereby preventing rainwater from entering and causing malfunction of the transformer and affecting the operation of the power system.

[0014] Preferably, a mounting plate corresponding to the wiring tube is fixedly connected to the oil tank shell, and a plurality of U-shaped screws are connected to the mounting plate through nuts, and a through hole for supporting and fixing the wiring tube is formed between the U-shaped screw and the mounting plate.

[0015] This preferred solution facilitates the support of the wiring pipe by the oil tank housing through the provision of a U-shaped screw.

[0016] Preferably, the terminal box is connected to a wire-in box, a wire-in port connected to a wire-routing tube is provided on the wire-in box, the wire-routing tube is bolted to the wire-in box, and a sealing ring is provided between the wire-in box and the wire-routing tube.

[0017] This preferred solution ensures the sealing between the wiring tube and the wire inlet by providing a sealing ring at the wire inlet.

[0018] Preferably, a hand hole is provided on the bottom surface of the incoming line box, and a cover plate for sealing the hand hole is also provided on the incoming line box. The preferred solution is convenient for maintenance through the provision of the hand hole.

[0019] Preferably, a cable gland is sealed and connected in the mounting hole. This preferred solution ensures the sealing of the oil tank housing by setting the cable gland.

[0020] Preferably, both the first junction box and the second junction box are provided with round steels arranged horizontally or vertically, and the cables are fixed on the round steels.

[0021] In the arrangement of this preferred solution, the cable passes through the first junction box or the second junction box along its extension trajectory. In order to avoid interference and extrusion of the cable in the first junction box or the second junction box, the cable is fixed on different round steels along its trajectory. At the same time, it can prevent the cable from contacting the sharp-angled surface and causing wear. After the wiring is completed, the cover plate is installed, which is simple and easy to operate and saves work time.

[0022] The beneficial effects of the present invention are as follows: by setting the first junction box, the second junction box, and the wiring tube, a wiring channel for the cable is formed, the wiring is integrated, the wiring is simplified, and the wiring tracing and maintenance are convenient; by overall planning and arranging the first junction boxes in different positions, the wiring is regularized, which facilitates the wiring tracing and maintenance; by setting independent modules, independent installation and replacement are convenient, thereby simplifying the production and installation process, reducing costs, and improving the convenience of wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection between the wiring tube and the fuel tank housing; Figure 3 is a schematic diagram of a first junction box; Figure 4 It is a three-dimensional schematic diagram of the terminal box; Figure 5 is a schematic diagram of the interior of the first junction box or the second junction box; Figure 6 It is a schematic diagram of installing the second junction box on the fuel tank housing; As shown in the figure: 1. First junction box, 2. Wire tube, 3. U-shaped screw, 4. Second junction box, 5. Terminal box, 6. Mounting plate, 7. Oil tank shell, 8. Round steel, 41. Box body, 42. Box cover, 43. Sealing gasket, 44. Mounting hole, 51. Inlet box, 52. Sealing ring. DETAILED DESCRIPTION

[0024] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0025] See attached Figure 1-6 The present invention provides a fully sealed tubular bridge wiring method for a transformer, which comprises the following steps: after the cable is led out through the protection component, it passes through the first junction box 1 located on the outer side of the oil tank shell 7 through the cable hose, enters the wiring tube 2 through the first junction box 1, and finally enters the terminal box 5 of the transformer body from the wiring tube 2. The wiring tube 2 is also provided with a second junction box 4 located at the turning point and used to improve the wiring operability. The second junction box 4 located at the inclined edge of the oil tank shell 7 is arranged along the inclined direction of the edge. Several transversely arranged first junction boxes 1 are connected in sequence through transversely extending wiring tubes 2 to form a main bridge line, and the first junction boxes 1 located outside the main bridge line are connected to the first junction boxes 1 located on the main line bridge through longitudinally or vertically extending wiring tubes 2.

[0026] The first junction box 1, the second junction box 4, and the wiring tube 2 are all independent modules, and the independent modules are modular and relatively independent products.

[0027] The first junction box 1 and the second junction box 4 both include a box body 41 with a plurality of wiring openings, and a mounting hole 44 provided on the box body 41 for sealingly inserting cables, wherein the mounting hole 44 is sealed with a cable gland, and the number of wiring openings depends on how many wiring tubes the first junction box 1 / the second junction box 4 is connected to. When located at an intersection, there are many wiring openings, and when located at an end, there is only one wiring opening.

[0028] A box cover 42 is inherently provided on the end surface of the wiring tube 2 and is sealed with the wiring opening. A sealing gasket 43 is provided between the box body 41 and the box cover 42. The box body 41 and the box cover 42 are fixed by bolts.

[0029] A mounting plate 6 corresponding to the wiring tube 2 is fixedly connected to the oil tank shell, and a plurality of U-shaped screws 3 are connected to the mounting plate 6 via nuts. A through hole for supporting and fixing the wiring tube 2 is formed between the U-shaped screw 3 and the mounting plate 6.

[0030] The terminal box 5 is connected to a wire-in box 51, which is provided with a wire-in port connected to the wire-conducting tube 2. The wire-conducting tube 2 is bolted to the wire-in box 51, and a sealing ring 52 is provided between the wire-in box 51 and the wire-conducting tube 2. A hand hole is provided on the bottom surface of the wire-in box 51, and a cover plate for sealing the hand hole is provided on the wire-in box 51.

[0031] The first junction box 1 and the second junction box 4 are both provided with round steels 8 arranged horizontally or vertically, and the cables are fixed on the round steels 8. The cables pass through the first junction box 1 or the second junction box 4 along their extension trajectory. To avoid interference and extrusion of the cables in the first junction box 1 or the second junction box 4, the cables are fixed on different round steels 8 along their trajectory, which can also prevent the cables from contacting sharp angles and causing wear. After the wiring is completed, the cover plate is installed, which is simple and easy to operate and saves work time.

[0032] The special fuel tank housing 7 has various types, including Figure 1 The fuel tank housing 7 is simple in shape and has Figure 5 The oil tank housing 7 and the attached Figure 1 It is not the same fuel tank housing 7.

[0033] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A fully sealed tubular bridge wiring method for transformers, characterized in that: The following steps are involved: After being led out through the protection component, the cable is passed through a cable hose into a first junction box (1) located on the outer surface of the oil tank housing (7), enters a wiring conduit (2) through the first junction box (1), and finally enters a terminal box (5) of the transformer body from the wiring conduit (2). A second junction box (4) is also provided on the wiring conduit (2) at a turning point for improving wiring operability.

2. The fully sealed tubular bridge wiring method for transformer according to claim 1 is characterized in that: A plurality of transversely arranged first junction boxes (1) are connected in sequence via transversely extending wiring tubes (2) to form a main bridge line, and a first junction box (1) located outside the main bridge line is connected to a first junction box (1) located on the main line bridge via a longitudinally or vertically extending wiring tube (2).

3. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: The first junction box (1), the second junction box (4) and the wiring tube (2) are all independent modules.

4. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: The second terminal box (4) located at the inclined edge of the oil tank housing (7) is arranged along the inclined direction of the edge.

5. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: The first junction box (1) and the second junction box (4) both comprise a box body (41) with a plurality of wiring openings, and a mounting hole (44) formed on the box body (41) and for sealingly inserting cables, a box cover (42) inherently provided on the end surface of the wiring tube (2) and sealedly connected to the wiring opening, a sealing gasket (43) provided between the box body (41) and the box cover (42), and the box body (41) and the box cover (42) being fixed by bolts.

6. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: A mounting plate (6) corresponding to the wiring tube (2) is fixedly connected to the oil tank shell, a plurality of U-shaped screw rods (3) are connected to the mounting plate (6) via nuts, and a through hole for supporting and fixing the wiring tube (2) is formed between the U-shaped screw rods (3) and the mounting plate (6).

7. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: The terminal box (5) is connected to a wire entry box (51), a wire entry port communicating with a wire routing tube (2) is provided on the wire entry box (51), the wire routing tube (2) is bolted to the wire entry box (51), and a sealing ring (52) is provided between the wire entry box (51) and the wire routing tube (2).

8. The fully sealed tubular bridge wiring method for transformer according to claim 7, characterized in that: A hand hole is provided on the bottom surface of the incoming line box (51), and a cover plate for sealing the hand hole is also provided on the incoming line box (51).

9. The fully sealed tubular bridge wiring method for transformer according to claim 3, characterized in that: A cable gland is sealed and connected inside the mounting hole (44).

10. The fully sealed tubular bridge wiring method for transformer according to claim 1, characterized in that: The first junction box (1) and the second junction box (4) are both provided with round steels (8) arranged transversely or longitudinally, and the cables are fixed on the round steels (8).

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