Conveniently hoisted voltage transformer for GIS

Abstract

The utility model discloses a GIS voltage transformer of convenient hoist, voltage transformer casing one end is provided with end board, and the central position of end board is provided with the explosion -proof sheet, and the surface of end board outside and located explosion -proof sheet department is provided with the protection casing, and the central position of protection casing is provided with the through -hole, and the surface of end board outside still is provided with a plurality of support, and the surface of end board outside still is provided with a plurality of lifting ring, and the surface of voltage transformer casing is provided with a plurality of lifting lug along the circumferential direction, the utility model discloses reasonable in structure, through the lifting lug of all around, can realize voltage transformer casing's positive installation, horizontal installation, through the lifting ring of end board can realize voltage transformer casing's upside -down installation, and the end board outside is provided with the explosion -proof sheet, and the explosion -proof sheet periphery is protected through the protection casing to prevent the explosion -proof sheet breakage due to knock in the installation or transportation process, and simultaneously through the support and lifting ring of height higher than protection casing, can further prevent the probability of protection casing being collided.

Description

Technical Field

[0001] This utility model relates to the field of voltage transformer technology, specifically a voltage transformer for GIS that is easy to hoist. Background Technology

[0002] Voltage transformers in GIS are a key component used to measure high voltages in power systems and convert them to standard low voltages for use by protection and measurement equipment.

[0003] Current voltage transformers have a single lifting lug position for different installation methods. This makes it inconvenient to operate voltage transformers that are easy to install horizontally, but not so convenient for upright or inverted installation. Furthermore, voltage transformers with explosion-proof discs generally have the discs exposed, making them prone to collisions during transportation or hoisting. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a voltage transformer for GIS that is easy to hoist, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a GIS voltage transformer that is easy to hoist, comprising a voltage transformer housing, a basin-type insulator, a terminal box, an end plate, an explosion-proof sheet, supports, and lifting lugs. One end of the voltage transformer housing is connected to the basin-type insulator via a flange. A terminal box is provided on one side of the voltage transformer housing. An end plate is provided at the end of the voltage transformer housing away from the basin-type insulator. An explosion-proof sheet is provided at the center of the end plate. A protective shell is provided on the outer surface of the end plate at the location of the explosion-proof sheet. The explosion-proof sheet is located inside the protective shell. A through hole is provided at the center of the protective shell. Several supports are also provided on the outer surface of the end plate. Several lifting rings are also provided on the outer surface of the end plate. Several lifting lugs are provided along the circumferential direction on the outer surface of the voltage transformer housing.

[0006] Preferably, the present invention provides a GIS voltage transformer that is easy to hoist, wherein a first protective cover is provided on the outside of the basin-type insulator, and the first protective cover is fastened to the basin-type insulator by bolts and nuts.

[0007] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein a second protective cover is provided at the outer end of the terminal box, and the second protective cover is fastened to the outer end of the terminal box by bolts.

[0008] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein the terminal box is provided with a first wiring terminal.

[0009] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein the basin-type insulator is provided with a plurality of second terminals.

[0010] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein the height of the support is greater than the height of the protective shell, and the diameter of the lifting ring is greater than the height of the protective shell.

[0011] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein the outer side of the protective housing is fastened to the end plate by a flange and bolts.

[0012] Preferably, the present invention provides a voltage transformer for GIS that is easy to hoist, wherein the height of the protective housing is greater than the length of the explosion-proof sheet.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The outer surface of the voltage transformer housing is provided with several lifting lugs along the circumference, and the outer surface of the end plate is provided with several lifting rings. The lifting lugs around the perimeter allow for upright and horizontal installation of the voltage transformer housing, while the lifting rings on the end plate allow for inverted installation. An explosion-proof sheet is provided on the outer side of the end plate, and the explosion-proof sheet is protected by a protective housing to prevent it from breaking due to impacts during installation or transportation. At the same time, the support and lifting rings, which are higher than the protective housing, further reduce the probability of the protective housing being hit, thus better protecting the explosion-proof sheet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 The attached diagram shows a schematic of the angle transformation structure.

[0017] Figure 3 This is a schematic diagram of the left-side structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the right-side structure of this utility model.

[0019] In the diagram: 1. Voltage transformer housing; 2. Basin insulator; 3. Terminal box; 4. End plate; 5. Explosion-proof sheet; 6. Support; 7. Lifting lug; 8. Protective housing; 9. Through hole; 10. Lifting ring; 11. First protective cover; 12. Second protective cover; 13. Second terminal; 14. Second terminal. Detailed Implementation

[0020] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a GIS voltage transformer that is easy to hoist, including a voltage transformer housing 1, a basin-type insulator 2, a terminal box 3, an end plate 4, an explosion-proof sheet 5, a support 6, and lifting lugs 7. One end of the voltage transformer housing 1 is connected to the basin-type insulator 2 via a flange. A terminal box 3 is provided on one side of the voltage transformer housing 1. A first terminal 13 is provided inside the terminal box 3, which is used to connect with conductors inside the voltage transformer housing 1 and inside the bushing, respectively. An end plate 4 is provided at the end of the voltage transformer housing 1 away from the basin-type insulator 2. An explosion-proof sheet 5 is provided at the center of the end plate 4. A protective shell 8 is provided on the outer surface of the end plate 4 at the location of the explosion-proof sheet 5, and the explosion-proof sheet 5 is located inside the protective shell 8. A through hole 9 is provided at the center of the protective housing 8. The outer side of the protective housing 8 is fastened to the end plate 4 by flanges and bolts to realize the installation and disassembly of the end plate 4. Several supports 6 are also provided on the outer surface of the end plate 4. The height of the supports 6 is greater than the height of the protective housing 8. The height of the protective housing 8 is greater than the length of the explosion-proof sheet 5 to ensure that the explosion-proof sheet 5 is completely hidden inside the protective housing 8 and to avoid the explosion-proof sheet 5 being directly impacted. The diameter of the lifting ring 10 is greater than the height of the protective housing 8, so that when the voltage transformer housing 1 is supported on the ground or during hoisting, it will not collide with the protective housing 8, thereby protecting the explosion-proof sheet 5. Several lifting rings 10 are also provided on the outer surface of the end plate 4. Several lifting lugs 7 are provided on the outer surface of the voltage transformer housing 1 along the circumferential direction.

[0023] A first protective cover 11 is provided on the outside of the basin-type insulator 2. The first protective cover 11 is fastened to the basin-type insulator 2 by bolts and nuts. By providing the first protective cover 11 on the outside of the basin-type insulator 2, it is possible to prevent the basin-type insulator 2 from being collided during transportation. At the same time, it can prevent rainwater from contacting the second terminal 14 inside the basin-type insulator 2. The basin-type insulator 2 is provided with several second terminal 14. The second terminal 14 is used to connect to one end of the conductor inside the voltage transformer. A second protective cover 12 is provided on the outside of the terminal box 3. The second protective cover 12 is fastened to the outside of the terminal box 3 by bolts. The second protective cover 12 is used to protect the inside of the terminal box 3.

[0024] Installation method and operating principle: First, weld several lifting lugs 7 to the outer surface of the voltage transformer housing 1. Simultaneously, weld the lifting ring 10 and support 6 to the outer surface of the end cover. Next, install the explosion-proof plate 5 at the center of the end plate 4. Then, install the protective housing 8 on the outer surface of the end plate 4 via a flange, concealing the explosion-proof plate 5 within the protective housing 8. The outer end of the explosion-proof plate 5 corresponds to the through hole 9 of the protective housing 8. Install the conductor inside the voltage transformer housing 1, connecting it to the first terminal 13 inside the terminal box 3. Then, secure the basin-type insulator 2 to the flange at one end of the voltage transformer housing 1 with bolts. Simultaneously, connect the second terminal 14 of the basin-type insulator 2 to the internal conductor, completing the assembly. During transportation, while connecting the basin-type insulator 2, install the first protective cover 11 on the outside of the basin-type insulator 2, and install the second protective cover 12 on the outside of the terminal box 3 with bolts. After being transported to the assembly workshop, the voltage transformer is lifted using a crane and electric hoist in conjunction with lifting ring 10 or lifting lug 7. The first protective cover 11 and the second protective cover 12 are then removed. Because the basin-type insulator 2 is connected to the internal conductor through the second terminal 14, it will not easily fall off. Finally, the voltage transformer housing 1 is connected to the grounding switch through the basin-type insulator 2 and the corresponding flange. The terminal box 3 can be connected to the bushing through the corresponding first terminal 13. This utility model has a reasonable structure. The outer surface of the voltage transformer housing 1 is provided with several lifting lugs 7 along the circumferential direction, and the outer surface of the end plate 4 is provided with several lifting rings 10. The lifting lugs 7 around the perimeter can realize the upright and horizontal installation of the voltage transformer housing 1. The lifting rings 10 of the end plate 4 can realize the inverted installation of the voltage transformer housing 1. An explosion-proof sheet 5 is provided on the outer side of the end plate 4. The explosion-proof sheet 5 is protected by a protective housing 8, thereby preventing the explosion-proof sheet 5 from breaking due to bumps during installation or transportation. At the same time, the support 6 and the lifting rings 10, which are higher than the protective housing 8, can further reduce the probability of the protective housing 8 being hit, thus better protecting the explosion-proof sheet 5.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A voltage transformer for GIS that is easy to hoist, characterized in that: The device includes a voltage transformer housing (1), a basin insulator (2), a terminal box (3), an end plate (4), an explosion-proof plate (5), a support (6), and a lifting lug (7). One end of the voltage transformer housing (1) is connected to the basin insulator (2) via a flange. A terminal box (3) is provided on one side of the voltage transformer housing (1). An end plate (4) is provided on the end of the voltage transformer housing (1) away from the basin insulator (2). An explosion-proof plate is provided at the center of the end plate (4). (5) A protective shell (8) is provided on the outer surface of the end plate (4) and at the explosion-proof sheet (5). The explosion-proof sheet (5) is located inside the protective shell (8). A through hole (9) is provided at the center of the protective shell (8). Several supports (6) are also provided on the outer surface of the end plate (4). Several lifting rings (10) are also provided on the outer surface of the end plate (4). Several lifting lugs (7) are provided on the outer surface of the voltage transformer housing (1) along the circumferential direction.

2. The GIS voltage transformer for easy hoisting as described in claim 1, characterized in that: The basin insulator (2) is provided with a first protective cover (11) on the outside. The first protective cover (11) is fastened to the basin insulator (2) by bolts and nuts.

3. A GIS voltage transformer that is easy to hoist, as described in claim 1, is characterized in that: The terminal box (3) is provided with a second protective cover (12) at its outer end, and the second protective cover (12) is fastened to the outer end of the terminal box (3) by bolts.

4. A voltage transformer for GIS that is easy to hoist, as described in claim 1, characterized in that: The terminal box (3) is provided with a first wiring terminal (13).

5. A GIS voltage transformer that is easy to hoist, as described in claim 1, characterized in that: The basin-type insulator (2) is provided with several second terminals (14).

6. A voltage transformer for GIS that is easy to hoist, as described in claim 1, characterized in that: The height of the support (6) is greater than the height of the protective shell (8), and the diameter of the lifting ring (10) is greater than the height of the protective shell (8).

7. A voltage transformer for GIS that is easy to hoist, as described in claim 1, characterized in that: The outer side of the protective housing (8) is fastened to the end plate (4) by flanges and bolts.

8. A voltage transformer for GIS that is easy to hoist, as described in claim 1, characterized in that: The height of the protective shell (8) is greater than the length of the explosion-proof sheet (5).

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