A transformer partial discharge monitoring device

Abstract

This utility model proposes a transformer partial discharge monitoring device, belonging to the field of detection technology. Through the cooperation of a cylinder, push plate, stop block, and bottom cover within the mounting hole, the mounting rod is first pressed against the top surface of the inner wall of the mounting hole. Then, the cylinder pushes the push plate and stop block to clamp the mounting rod. Finally, the bottom cover presses against the bottom surface of the mounting rod. The multi-component collaboration achieves a tight installation of the housing on the mounting rod. Compared to traditional installation methods, the installation process is simple and efficient, and the installed stability is strong, adaptable to complex outdoor environments, and reduces the risk of the transformer partial discharge monitoring device loosening and falling. Furthermore, the outer side of the bottom cover is rotatably connected to the base plate via bearings. With the help of an extension plate, locking bolts, and locking nuts, the housing is further fixed after the bottom cover presses against the mounting rod, forming a double-fixing structure that greatly enhances the overall stability of the device and ensures reliable operation during long-term use.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology, specifically relating to a transformer partial discharge monitoring device. Background Technology

[0002] In power systems, transformers mounted on utility poles are crucial electrical equipment, and their safe and stable operation is essential for power supply reliability. During long-term operation, transformers are prone to partial discharge due to insulation aging, uneven electric field distribution, and other factors. Partial discharge gradually damages the transformer's insulation performance, potentially leading to transformer failure and disrupting power supply. Therefore, real-time monitoring of partial discharge in transformers is of great significance.

[0003] Currently, although some transformer partial discharge monitoring devices exist, their installation on transformers mounted on utility poles presents numerous challenges in practical applications. For example, existing monitoring devices often lack stable mounting structures, making them prone to loosening and displacement in complex outdoor environments such as strong winds and heavy rain, affecting the accuracy of monitoring data. Furthermore, the installation process is cumbersome, inconvenient for installation and maintenance, and increases labor and time costs. Therefore, there is an urgent need to design a transformer partial discharge monitoring device that can be stably installed on transformer mounting frames and is easy to install and maintain. Utility Model Content

[0004] This invention addresses the problems in the prior art by providing a transformer partial discharge monitoring device.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] A transformer partial discharge monitoring device includes a mounting rod for mounting a transformer between two utility poles, and a housing. A base is fixedly connected to the bottom surface of the housing. The base has a through mounting hole on its front side, into which the mounting rod can extend. A mounting groove is formed on the bottom surface of the base, and a bottom cover is threadedly connected to the mounting hole and the inner wall of the mounting groove. Two cylinders are fixedly connected to the left end of the bottom surface of the mounting hole, one at the front end and the other at the rear end. A push plate is fixedly connected to the output end of each cylinder, and the other end of the push plate is in contact with the side of the mounting rod. A stop block is provided at the end of the mounting rod away from itself from the push plate, and the stop block is integrally formed with the right end of the inner wall of the mounting hole. The bottom cover extends through the mounting groove into the mounting hole, and the top surface of the bottom cover is in contact with the mounting rod.

[0007] The housing contains a discharge monitor.

[0008] Preferably, the bottom surface of the housing is fixedly connected to and arrayed with springs, the top of the springs is fixedly connected to a support plate, and the discharge monitor is fixedly installed on the top surface of the support plate.

[0009] Preferably, the front end of the discharge monitor is connected to a connecting wire, the other end of which passes through the front of the housing and is electrically connected to a discharge monitoring probe. A sealing rubber plate is fixedly connected at the connection between the connecting wire and the housing.

[0010] Preferably, the outer side of the bottom cover is rotatably connected to a base plate via a bearing, and the top surface of the base plate and the bottom surface of the base are in contact.

[0011] Preferably, the base has horizontally extended plates integrally formed on the left and right sides of its bottom; the left and right ends of the base plate are respectively fixedly provided with through holes, and locking bolts are threaded into the holes. The extension plates are slidably connected to the locking bolts; the locking bolts extend from the bottom of the base plate into the holes, and locking nuts are threaded to the top of the side of the locking bolts. The bottom surface of the locking nuts is in contact with the top surface of the extension plates.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This utility model discloses a transformer partial discharge monitoring device. Through the cooperation of a cylinder, push plate, stop block, and bottom cover within the mounting hole, the mounting rod is first pressed against the top surface of the inner wall of the mounting hole. Then, the cylinder pushes the push plate and stop block to clamp the mounting rod. Finally, the bottom cover presses against the bottom surface of the mounting rod. The multi-component collaboration achieves a tight installation of the housing on the mounting rod. Compared to traditional installation methods, the installation process is simple and efficient, and the installed device exhibits strong stability, adapting to complex outdoor environments and reducing the risk of the transformer partial discharge monitoring device loosening and falling. Furthermore, the outer side of the bottom cover is rotatably connected to the base plate via bearings. Combined with an extension plate, locking bolts, and locking nuts, the housing is further fixed after the bottom cover presses against the mounting rod, forming a double-fixing structure that greatly enhances the overall stability of the device, ensuring reliable operation during long-term use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a front view and sectional view of the present invention;

[0017] In the above figures, 1. Mounting rod; 2. Housing; 3. Base; 4. Mounting hole; 5. Bottom cover; 6. Cylinder; 7. Push plate; 8. Stop block; 9. Discharge monitor; 10. Spring; 11. Support plate; 12. Connecting wire; 13. Discharge monitoring probe; 14. Sealing rubber plate; 15. Base plate; 16. Extension plate; 17. Locking bolt; 18. Locking nut. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1, as Figure 1 , Figure 2 As shown, a transformer partial discharge monitoring device of this application includes a mounting rod 1 between two utility poles for installing a transformer; installing the transformer via the mounting rod 1 is a common technical means in the art, and will not be described in detail here;

[0021] The device also includes a housing 2, to which a base 3 is fixedly connected. In this application, the housing 2 and the base 3 are integrally formed. The base 3 has a through mounting hole 4 on its front side, into which the mounting rod 1 can extend. The base 3 has a mounting groove on its bottom surface, which is connected to the mounting hole 4. A bottom cover 5 is threadedly connected to the inner wall of the mounting groove. Two cylinders 6 are fixedly connected to the left end of the bottom wall of the mounting hole 4, located at the front and rear ends of the mounting hole 4 respectively. A push plate 7 is fixedly connected to the output end of the cylinder 6, and the other end of the push plate 7 is in contact with the side of the mounting rod 1. A stop block 8 is in contact with the end of the mounting rod 1 that is away from itself and in contact with the push plate 7. The stop block 8 is integrally formed with the right end of the inner wall of the mounting hole 4. The bottom cover 5 extends into the mounting hole 4 through the mounting groove, and the top surface of the bottom cover 5 is in contact with the mounting rod 1.

[0022] The housing 2 has a built-in discharge monitor 9. During use, the mounting rod 1 is first passed through the mounting groove and the mounting hole 4, and then the top surface of the mounting rod 1 is pressed against the top surface of the inner wall of the mounting hole 4. The cylinder 6 is activated to push the push plate 7, and the push plate 7 and the stop block 8 clamp the mounting rod 1. Finally, the bottom cover 5 is screwed into the mounting groove, and the bottom cover 5 is pressed against the bottom surface of the mounting rod 1, so that the housing 2 with the built-in discharge monitor 9 is tightly installed on the mounting rod 1. The bottom cover 5 is slightly loosened and the cylinder 6 is controlled to drive the push plate 7 to move slightly to the left, so that the housing 2 slides on the mounting rod 1 and the position of the housing 2 on the mounting rod 1 is adjusted.

[0023] Springs 10 are fixedly connected to and arrayed on the bottom surface of the housing 2. A support plate 11 is fixedly connected to the top of the springs 10. The discharge monitor 9 is fixedly installed on the top surface of the support plate 11. The springs 10 and the support plate 11 provide buffer support for the discharge monitor 9 during the movement of the housing 2 to prevent the discharge monitor 9 from being bumped.

[0024] A connecting wire 12 is inserted into the front end of the discharge monitor 9. The other end of the connecting wire 12 passes through the front of the housing 2 and is electrically connected to the discharge monitoring probe 13. A sealing rubber plate 14 is fixedly connected at the connection between the connecting wire 12 and the housing 2. The discharge monitoring probe 13 monitors the partial discharge of the transformer.

[0025] The outer side of the bottom cover 5 is rotatably connected to the bottom plate 15 via a bearing, and the top surface of the bottom plate 15 is in contact with the bottom surface of the base 3.

[0026] The base 3 has horizontally extended plates 16 integrally formed on both the left and right sides of its bottom. The base plate 15 has through holes at both ends, with locking bolts 17 threaded into the holes. The extension plates 16 are slidably connected to the locking bolts 17. The locking bolts 17 extend from the bottom of the base plate 15 into the holes, and locking nuts 18 are threaded onto the top side of the locking bolts 17. The bottom surface of the locking nuts 18 is in contact with the top surface of the extension plates 16. During use, after the bottom cover 5 is pressed against the mounting rod 1, tightening the locking bolts 17 and locking nuts 18 further secures the housing 2 to the mounting rod 1, greatly enhancing the overall stability of the transformer partial discharge monitoring device and ensuring reliable operation of the monitoring device during long-term use.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A transformer partial discharge monitoring device, comprising a mounting rod (1) between two utility poles for mounting a transformer, characterized in that, It also includes a housing (2), on the bottom surface of which a base (3) is fixedly connected. The base (3) has a front and back through mounting hole (4) on its front side, and the mounting rod (1) can be inserted into the mounting hole (4). The bottom surface of the base (3) has a mounting groove, and the mounting groove and the mounting hole (4) are connected by a threaded bottom cover (5). The bottom of the inner wall of the mounting hole (4) is fixedly connected to a cylinder (6). There are two cylinders (6), which are respectively set at the front and back ends of the mounting hole (4). The output end of the cylinder (6) is fixedly connected to a push plate (7). The other end of the push plate (7) is in contact with the side of the mounting rod (1). The end of the mounting rod (1) away from itself and in contact with the push plate (7) is in contact with a stop block (8). The stop block (8) is integrally formed with the right end of the inner wall of the mounting hole (4). The bottom cover (5) passes through the mounting groove and can be inserted into the mounting hole (4). The top surface of the bottom cover (5) is in contact with the mounting rod (1). The housing (2) contains a discharge monitor (9).

2. The transformer partial discharge monitoring device according to claim 1, characterized in that, The bottom surface of the housing (2) is fixedly connected to and arrayed with springs (10), the top of the springs (10) is fixedly connected to a support plate (11), and the discharge monitor (9) is fixedly installed on the top surface of the support plate (11).

3. The transformer partial discharge monitoring device according to claim 1, characterized in that, The discharge monitor (9) has a connecting wire (12) inserted into its front end. The other end of the connecting wire (12) passes through the front of the housing (2) and is electrically connected to a discharge monitoring probe (13). A sealing rubber plate (14) is fixedly connected at the connection between the connecting wire (12) and the housing (2).

4. The transformer partial discharge monitoring device according to claim 1, characterized in that, The outer side of the bottom cover (5) is rotatably connected to the base plate (15) via a bearing, and the top surface of the base plate (15) and the bottom surface of the base (3) are in contact.

5. A transformer partial discharge monitoring device according to claim 4, characterized in that, The base (3) has horizontally arranged extension plates (16) integrally formed on the left and right sides of the bottom; the bottom plate (15) has holes that are open from top to bottom at the left and right ends respectively, and locking bolts (17) are threadedly connected in the holes. The extension plates (16) are slidably connected to the locking bolts (17); the locking bolts (17) extend from the bottom of the bottom plate (15) into the holes, and locking nuts (18) are threadedly connected to the top of the side of the locking bolts (17). The bottom surface of the locking nuts (18) and the top surface of the extension plates (16) are in contact.

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