Multifunctional fusion detection device for partial discharge of closed dry-type transformer

Abstract

The invention discloses a closed dry-type transformer partial discharge multifunctional fusion detection device, and relates to the technical field of discharge detection equipment, the closed dry-type transformer partial discharge multifunctional fusion detection device comprises a discharge detector and a test wire, the back surface of the discharge detector is provided with an interface, and the test wire comprises a joint, an insulation handle and a high voltage wire. The fixed frame is fixedly mounted on the surface of the discharge detector; the push rod penetrates through the inner wall and the outer wall of the fixed frame in a sliding mode, and the push rod moves in the parallel direction; the movable plate is fixedly mounted on the surface of the push rod, and a placement groove is formed in the top of the movable plate; the rubber pad is fixedly mounted on the inner wall of the placement groove; through the closing of the protective cover, the closed safety space is improved, and the test line is automatically fixed by using the pressing block to ensure the stable and reliable connection.

Description

Technical Field

[0001] The present invention relates to the technical field of discharge detection equipment, and particularly to a multi-functional integrated detection device for partial discharge of enclosed dry-type transformers. Background Art

[0002] The multi-functional integrated detection device for partial discharge of dry-type transformers is an advanced device integrating multiple detection technologies, aiming to monitor the partial discharge phenomenon inside dry-type transformers in real time and accurately, so as to evaluate their insulation status and prevent potential failures.

[0003] The patent with the patent announcement number CN221039304U relates to a partial discharge detector, including a detector main body and a connecting wire. The detector main body is provided with a placement groove, the placement groove is equipped with an operation panel, the operation panel is equipped with a connection panel, the connection panel is equipped with a fixed panel, the operation panel is provided with an operation cavity, the connection panel and the fixed panel are provided with telescopic cavities, the fixed panel and the connection panel are equipped with movable rods, the movable rods are equipped with traction discs, the traction discs are equipped with clamping rods, the fixed panel is provided with clamping grooves, the clamping rods are clamped with the clamping grooves, the movable rods are equipped with pressing blocks, the movable rods are equipped with fixing plates, and the movable rods are equipped with telescopic springs. The above-mentioned partial discharge detector solves the problems that the existing partial discharge detector and the detection line are placed separately, which is not convenient to carry, and the detection line cannot be adjusted according to the length required by electrical equipment through the cooperation of the placement groove and the connection panel.

[0004] In the above patent, it has the function of being convenient to carry. By the cooperation of the placement groove and the connection panel, it solves the problem that the separate placement of the partial discharge detector and the detection line makes it inconvenient to carry. However, in the actual detection process, the detector needs to strictly connect the discharge detector and the detection line according to the requirements. Since the connection process involves electrical contact, there are certain risks, resulting in unsafe situations during the operation process. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multi-functional integrated detection device for partial discharge of enclosed dry-type transformers, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A multi-functional integrated detection device for partial discharge of a closed dry-type transformer, including a discharge detector and a test wire. An interface is provided on the back of the discharge detector. The test wire includes a connector, an insulating handle, and a high-voltage wire. One end of the test wire is connected to the discharge detector, and the other end is connected to a coupling capacitor, and then indirectly connected to the dry-type transformer through the coupling capacitor, including: a fixed frame, which is fixedly installed on the surface of the discharge detector; a push rod, which slides through the inner and outer walls of the fixed frame, the push rod moves in a parallel direction, and the push rod has good insulation; a movable plate, which is fixedly installed on the surface of the push rod, a placement groove is opened at the top of the movable plate, pushing the push rod, the push rod drives the movable plate to move towards the discharge detector, so that the test wire moves towards the discharge detector synchronously; a rubber pad, which is fixedly installed on the inner wall of the placement groove; a protective cover, which rotates through the inner and outer walls of the fixed frame, and the protective cover has good insulation; a rectangular block, which is fixedly installed on the surface of the protective cover, closing the protective cover, the rotation of the protective cover will drive the rectangular block to rotate synchronously; a limiting plate, which is rotatably installed on the side of the fixed frame away from the discharge detector.

[0007] According to the above technical solution, a portal frame slides through the top of the movable plate. A first spring is provided between the portal frame and the movable plate. The bearing seat drives the portal frame to move downward. The downward movement of the portal frame stretches the first spring, and the first spring deforms under tension. A bearing seat is fixedly installed on the top of the portal frame. A roller is rotatably installed on the inner wall of the bearing seat. A pressing block is fixedly installed on the side of the portal frame close to the rubber pad. The portal frame has good insulation.

[0008] According to the above technical solution, a lower groove is opened on the surface of the fixed frame, an upper groove is opened on the surface of the protective cover, and a torsion spring is provided between the limiting plate and the fixed frame. Rotate the limiting plate to a predetermined position. During the rotation process, the limiting plate stretches the torsion spring. Release the limiting plate, and at this time the torsion spring releases its stored energy and drives the limiting plate to rotate back to the initial position. An arc surface one is opened on the side of the pressing block close to the rubber pad.

[0009] According to the above technical solution, a pushing device for automatically pulling out the test line and a stabilizing device for improving the detection stability are provided on the fixed frame; the pushing device includes a linear slide table, a sliding block, a second spring, a linkage plate and a connecting rod. After the gantry moves down to the designated position, it continues to move and contacts the linkage plate. At this time, the gantry pushes the linkage plate to move synchronously. The linear slide table is fixedly penetrated through the bottom of the inner wall of the fixed frame. The sliding block is slidably installed on the circumferential surface of the linear slide table. The second spring is arranged between the sliding block and the linear slide table. When the sliding block moves, it stretches the second spring, and the second spring deforms due to the stretching. The deformed second spring begins to accumulate elastic potential energy. The linkage plate is fixedly installed on the top of the sliding block, and the connecting rod is fixedly installed on the bottom of the linkage plate. A first inclined surface is provided on the side of the linkage plate away from the second spring.

[0010] According to the above technical solution, a carrying frame is slidably penetrated through the bottom of the linear slide table. A third spring is arranged between the carrying frame and the linear slide table. A roller is rotatably penetrated through the inner wall of the carrying frame. When the first inclined surface moves and contacts the roller, the roller is driven to rotate through friction and is forced to move down.

[0011] According to the above technical solution, the stabilizing device includes an L-shaped frame, a rectangular plate, a rotating shaft, a rubber plate and a spring piece. The rectangular plate contacts the rubber plate and applies a thrust to the rubber plate. Under the action of the thrust, the rubber plate rotates towards the spring piece. The L-shaped frame is fixedly installed on the top of the inner wall of the fixed frame. The rectangular plate is slidably installed on the inner wall of the L-shaped frame. The rotating shaft is fixedly installed inside the L-shaped frame. The rubber plate is rotatably installed on the circumferential surface of the rotating shaft. One end of the spring piece is fixedly installed on the inner wall of the rubber plate, and the other end is fixedly connected to the inner wall of the L-shaped frame. A blind hole is provided on the top of the rectangular plate. The inner wall of the connecting rod contacts the blind hole. When the connecting rod moves towards the T-shaped plate, it will synchronously drive the rectangular plate to move along the L-shaped frame.

[0012] According to the above technical solution, a contact block is fixedly installed on the side of the rectangular plate close to the rubber plate. A T-shaped plate is slidably penetrated through the top of the L-shaped frame. The T-shaped plate moves in the vertical direction. When the contact block moves, it applies an upward supporting force to the T-shaped plate, and the T-shaped plate rises under the supporting action.

[0013] According to the above technical solution, a rectangular groove is provided on the surface of the L-shaped frame. A second inclined surface is provided on the side of the contact block close to the T-shaped plate. An arc surface two is provided on the bottom of the T-shaped plate. When the contact block moves through the rectangular groove during movement, its second inclined surface contacts the arc surface two of the T-shaped plate.

[0014] The present invention provides a multi-functional integrated detection device for partial discharge of a closed dry-type transformer. It has the following beneficial effects: (1)For the multi-functional integrated partial discharge detection device of the enclosed dry-type transformer, the limiting plate rotates back to the initial position and contacts the rectangular block to form a limit. Through rapid limiting, it can not only prevent the accidental opening of the protective cover due to accidental collision during the test, but also ensure that the test line is connected in a closed safe space. At the same time, the movement of the portal frame drives the pressing block to move downwards. The closure of the protective cover not only improves the closed safe space, but also automatically fixes the test line with the pressing block to ensure stable and reliable connection.

[0015] (2)For the multi-functional integrated partial discharge detection device of the enclosed dry-type transformer, the reset roller closely adheres to the linkage plate to form a limit. The linkage plate is limited by the reset of the roller to ensure that the linkage plate will not interfere with the detection during partial discharge detection and prepare for pushing. At the same time, the second spring releases elastic potential energy to drive the sliding block to reset, and the pushing is triggered by pulling down the carrying frame. The tester can choose whether to enable pushing according to on-site requirements, significantly improving the operation efficiency.

[0016] (3)For the multi-functional integrated partial discharge detection device of the enclosed dry-type transformer, the elastic sheet exerts a reverse elastic force on the rubber plate, making the rubber plate closely fit with the rectangular plate. By applying the reverse elastic force of the elastic sheet, the stability after the rectangular plate reaches the specified position is enhanced, reducing the problem of unstable connection caused by vibration during movement. At the same time, the T-shaped plate provides an additional supporting force for the movable plate. By providing an additional supporting force for the movable plate through the T-shaped plate, the stability of the movable plate is enhanced, thereby ensuring the stability after the test line is connected to the discharge detector. Description of the Drawings

[0017] Figure 1 It is a front view structural schematic diagram of the discharge detector of the present invention; Figure 2 It is a structural schematic diagram of the position of the fixed frame of the present invention; Figure 3 It is a rear view structural schematic diagram of the discharge detector of the present invention; Figure 4 It is a structural schematic diagram of the positions of the portal frame and the linkage plate of the present invention; Figure 5 It is a structural schematic diagram of the portal frame of the present invention; Figure 6 It is a structural schematic diagram of the pushing device and the stabilizing device of the present invention; Figure 7 It is a sectional view position structural schematic diagram of the linkage plate of the present invention; Figure 8 It is a structural schematic diagram of the carrying frame of the present invention; Figure 9 It is a structural schematic diagram of the internal structure of the L-shaped frame of the present invention.

[0018] In the figure: 1. Discharge detector; 2. Test line; 3. Fixed frame; 4. Push rod; 5. Movable plate; 6. Rubber pad; 7. Protective cover; 8. Rectangular block; 9. Limit plate; 10. Gantry; 11. First spring; 12. Bearing seat; 13. Roller; 14. Pressing block; 151. Linear slide; 152. Sliding block; 153. Second spring; 154. Linking plate; 155. Connecting rod; 156. Carrier frame; 157. Third spring; 158. Roller; 161. L-shaped frame; 162. Rectangular plate; 163. Rotating shaft; 164. Rubber plate; 165. Elastic piece; 166. Contact block; 167. T-shaped plate. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1 - 5 , an embodiment of the present invention is: a multi-functional integrated detection device for partial discharge of a closed dry-type transformer, including a discharge detector 1 and a test line 2. An interface is provided on the back of the discharge detector 1. The test line 2 includes a connector, an insulating handle and a high-voltage wire, including: a fixed frame 3, which is fixedly installed on the surface of the discharge detector 1; a push rod 4, which slides through the inner and outer walls of the fixed frame 3, and the push rod 4 moves in a parallel direction; a movable plate 5, which is fixedly installed on the surface of the push rod 4, and a placement groove is opened at the top of the movable plate 5; a rubber pad 6, which is fixedly installed on the inner wall of the placement groove; a protective cover 7, which rotates through the inner and outer walls of the fixed frame 3; a rectangular block 8, which is fixedly installed on the surface of the protective cover 7; a limit plate 9, which is rotatably installed on the side of the fixed frame 3 away from the discharge detector 1. The closing of the protective cover 7 not only improves the enclosed safety space, but also automatically fixes the test line 2 with the pressing block 14 to ensure stable and reliable connection.

[0021] A gantry 10 slides through the top of the movable plate 5. A first spring 11 is arranged between the gantry 10 and the movable plate 5. A bearing seat 12 is fixedly installed at the top of the gantry 10, and a roller 13 is rotatably installed on the inner wall of the bearing seat 12. A pressing block 14 is fixedly installed on the side of the gantry 10 close to the rubber pad 6. Through quick limiting, it can not only prevent the accidental opening of the protective cover 7 due to accidental collision during the test, but also ensure that the test line 2 is in the enclosed safety space during connection.

[0022] The surface of the fixed frame 3 is provided with a lower groove, and the surface of the protective cover 7 is provided with an upper groove. A torsion spring is arranged between the limiting plate 9 and the fixed frame 3. The surface of the pressing block 14 close to the rubber pad 6 is provided with a first arc surface. By providing the upper groove and the lower groove, it is convenient for the tester to sort out the test wire 2, which helps to improve the cleanliness of the detection environment.

[0023] During the operation of this embodiment, the tester places the test wire 2 into the placement groove of the movable plate 5 in sequence, ensuring that the insulating handle of the test wire 2 is in close contact with the rubber pad 6, and at the same time making the high-voltage wire in stable contact with the lower groove. After the placement is completed, the tester rotates the limiting plate 9 to a predetermined position. During the rotation process, the limiting plate 9 stretches the torsion spring, and then closes the protective cover 7, so that the upper groove of the protective cover 7 is in contact with the high-voltage wire. At the same time, the rotation of the protective cover 7 will drive the rectangular block 8 to rotate synchronously. When the rectangular block 8 rotates to the designated position, the tester releases the limiting plate 9. At this time, the torsion spring releases its stored energy, drives the limiting plate 9 to rotate back to the initial position, and contacts the rectangular block 8 to form a limit, thereby fixing the protective cover 7. Through quick limiting, it can not only prevent the accidental opening of the protective cover 7 due to accidental touch during the test process, but also ensure that the test wire 2 is in a closed safe space when connected. When the tester closes the protective cover 7, its rotation will contact the roller 13 and push the roller 13 to move downward. The movement of the roller 13 drives the bearing seat 12 to move downward, and the bearing seat 12 drives the portal frame 10 to move downward, stretching the first spring 11. At the same time, the movement of the portal frame 10 drives the pressing block 14 to move downward until the pressing block 14 contacts the insulating handle of the test wire 2. As the protective cover 7 continues to close, the pressing block 14 exerts a continuous pressure on the insulating handle to ensure that the insulating handle is in close fit with the rubber pad 6 and enhance the stability of the contact. After the protective cover 7 is fixed, the tester pushes the push rod 4, and the push rod 4 drives the movable plate 5 to move towards the discharge detector 1, so that the test wire 2 moves towards the discharge detector 1 synchronously. During this process, the frictional effect between the roller 13 and the protective cover 7 makes the roller 13 roll until the connector of the test wire 2 is accurately inserted into the interface of the discharge detector 1. Then the tester starts the discharge detector 1 to perform partial discharge detection. After the detection is completed, the tester only needs to push the push rod 4 to reset to pull out the test wire 2. The closing of the protective cover 7 not only improves the closed safe space, but also uses the pressing block 14 to automatically fix the test wire 2 to ensure stable and reliable connection.

[0024] Please refer to Figures 1 - 9, on the basis of the above embodiments, in another embodiment of the present invention, a pushing device for automatically pulling out the test line 2 and a stabilizing device for improving the detection stability are provided on the fixed frame 3; the pushing device includes a linear slide 151, a sliding block 152, a second spring 153, a linkage plate 154 and a connecting rod 155. The linear slide 151 is fixedly penetrated through the bottom of the inner wall of the fixed frame 3, the sliding block 152 is slidably installed on the circumferential surface of the linear slide 151, the second spring 153 is arranged between the sliding block 152 and the linear slide 151, the linkage plate 154 is fixedly installed on the top of the sliding block 152, the connecting rod 155 is fixedly installed on the bottom of the linkage plate 154, and a first inclined surface is formed on the side of the linkage plate 154 away from the second spring 153. By pulling down the carrier 156 to trigger the push, the tester can choose whether to enable the push according to the on-site requirements, significantly improving the operation efficiency.

[0025] A carrier 156 is slidably penetrated through the bottom of the linear slide 151, a third spring 157 is arranged between the carrier 156 and the linear slide 151, and a roller 158 is rotatably penetrated through the inner wall of the carrier 156. The linkage plate 154 is limited by the reset of the roller 158 to ensure that the linkage plate 154 does not interfere with the detection during partial discharge detection and prepares for the push.

[0026] The stabilizing device includes an L-shaped frame 161, a rectangular plate 162, a rotating shaft 163, a rubber plate 164 and a spring piece 165. The L-shaped frame 161 is fixedly installed on the top of the inner wall of the fixed frame 3, the rectangular plate 162 is slidably installed on the inner wall of the L-shaped frame 161, the rotating shaft 163 is fixedly installed inside the L-shaped frame 161, the rubber plate 164 is rotatably installed on the circumferential surface of the rotating shaft 163, one end of the spring piece 165 is fixedly installed on the inner wall of the rubber plate 164, and the other end is fixedly connected to the inner wall of the L-shaped frame 161. A blind hole is formed on the top of the rectangular plate 162, and the inner wall of the connecting rod 155 is in contact with the blind hole. By applying a reverse elastic force by the spring piece 165, the stability after the rectangular plate 162 reaches the specified position is enhanced, and the problem of unstable connection caused by vibration during movement is reduced.

[0027] A contact block 166 is fixedly installed on the side of the rectangular plate 162 close to the rubber plate 164, and a T-shaped plate 167 is slidably penetrated through the top of the L-shaped frame 161. The T-shaped plate 167 moves in the vertical direction, providing an additional supporting force for the movable plate 5 through the T-shaped plate 167, enhancing the stability of the movable plate 5, and further ensuring the stability after the test line 2 is connected to the discharge detector 1.

[0028] The surface of the L-shaped frame 161 is provided with a rectangular groove. One side of the contact block 166 close to the T-shaped plate 167 is provided with a second inclined surface, and the bottom of the T-shaped plate 167 is provided with a second arc surface. By providing the second inclined surface and the second arc surface, the frictional resistance when the contact block 166 contacts the T-shaped plate 167 is reduced, ensuring that the contact block 166 can smoothly drive the T-shaped plate 167 to rise.

[0029] When this embodiment works, when the gantry 10 moves down to the designated position and continues to move in the direction of the discharge detector 1, it will contact the linkage plate 154. At this time, the gantry 10 pushes the linkage plate 154 to move synchronously. The linkage plate 154 drives the slider 152 and the connecting rod 155 to move synchronously. The slider 152 moves to stretch the second spring 153, storing elastic potential energy therein. At the same time, the first inclined surface of the linkage plate 154 moves into contact with the roller 158 and drives the roller 158 to rotate through friction. Due to the inclination of the first inclined surface, the roller 158 is forced to move downward while rotating. The movement of the roller 158 drives the carrying frame 156 to move downward. The movement of the carrying frame 156 compresses the third spring 157. When the linkage plate 154 reaches the designated position, its first inclined surface and the roller 158 are separated from contact. At this time, the third spring 157 releases elastic potential energy, pushing the carrying frame 156 and the roller 158 to reset. After resetting, the roller 158 closely adheres to one side of the linkage plate 154 close to the second spring 153, forming a limit to prevent the linkage plate 154 from retracting. By the reset of the roller 158, the linkage plate 154 is limited, ensuring that the linkage plate 154 will not interfere with the detection during partial discharge detection and preparing for pushing. After the test, the tester pulls down the carrying frame 156, causing it to move downward under the action of the pulling force. The movement of the carrying frame 156 compresses the third spring 157 and drives the roller 158 to move downward. After the roller 158 reaches the preset position, it is separated from the linkage plate 154, thereby releasing the limit constraint on the linkage plate 154. At this time, the stretched second spring 153 immediately releases elastic potential energy, quickly driving the slider 152 to reset. The movement of the slider 152 drives the linkage plate 154 to quickly reset. The linkage plate 154 then pushes the gantry 10 to reset, finally realizing the automatic extraction of the test line 2. By pulling down the carrying frame 156 to trigger pushing, the tester can choose whether to enable pushing according to on-site requirements, significantly improving the operation efficiency. When the connecting rod 155 moves towards the T-shaped plate 167, it will synchronously drive the rectangular plate 162 to move along the L-shaped frame 161. The L-shaped frame 161 provides a stable supporting force for the rectangular plate 162 and transmits the supporting force to the connecting rod 155 through the blind hole to ensure the smoothness of the movement process of the connecting rod 155. When the rectangular plate 162 moves to the preset position, the rectangular plate 162 contacts the rubber plate 164. As the rectangular plate 162 continues to move, a continuously increasing thrust will be exerted on the rubber plate 164. During this process, the rubber plate 164 rotates towards the elastic piece 165 under the action of the thrust. The rotating rubber plate 164 presses the elastic piece 165, and the deformed elastic piece 165 exerts a reverse elastic force on the rubber plate 164, making the rubber plate 164 closely fit with the rectangular plate 162, thereby improving the stability effect. By the elastic piece 165 exerting the reverse elastic force, the stability after the rectangular plate 162 reaches the designated position is enhanced, and the problem of unstable connection caused by vibration during movement is reduced. While the rectangular plate 162 moves, it drives the contact block 166 to move towards the T-shaped plate 167. The contact block 166 passes through the rectangular groove during the movement, and its second inclined surface contacts the second arc surface of the T-shaped plate 167, resulting in the contact block 166 continuing to move and exerting an upward supporting force on the T-shaped plate 167. The T-shaped plate 167 rises under the supporting action and contacts the movable plate 5 during the rising process. At this time, the T-shaped plate 167 provides an additional supporting force for the movable plate 5, thereby improving the stability of the test line 2 during the connection process. By the T-shaped plate 167 providing an additional supporting force for the movable plate 5, the stability of the movable plate 5 is enhanced, and further the stability after the test line 2 is connected to the discharge detector 1 is ensured.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-functional integrated detection device for partial discharge of a closed dry-type transformer, comprising a discharge detector (1) and a test wire (2). An interface is provided on the back of the discharge detector (1). The test wire (2) includes a connector, an insulating handle, and a high-voltage wire, characterized in that, Including: A fixed frame (3), which is fixedly installed on the surface of the discharge detector (1); A push rod (4), which slidably penetrates through the inner and outer walls of the fixed frame (3), and the push rod (4) moves in a parallel direction; A movable plate (5), which is fixedly installed on the surface of the push rod (4), and a placement groove is formed at the top of the movable plate (5); A rubber pad (6), which is fixedly installed on the inner wall of the placement groove; A protective cover (7), which rotatably penetrates through the inner and outer walls of the fixed frame (3); A rectangular block (8), which is fixedly installed on the surface of the protective cover (7); A limiting plate (9), which is rotatably installed on one side of the fixed frame (3) away from the discharge detector (1).

2. The multi-functional integrated detection device for partial discharge of a closed dry-type transformer according to claim 1, wherein: A gantry (10) slidably penetrates through the top of the movable plate (5), a first spring (11) is arranged between the gantry (10) and the movable plate (5), a bearing seat (12) is fixedly installed on the top of the gantry (10), a roller (13) is rotatably installed on the inner wall of the bearing seat (12), and a pressing block (14) is fixedly installed on one side of the gantry (10) close to the rubber pad (6); Among them, a pushing device for automatically pulling out the test line (2) and a stabilizing device for improving the detection stability are arranged on the fixed frame (3).

3. A multi-functional integrated detection device for partial discharge of a closed dry-type transformer according to claim 2, characterized in that: A lower groove is formed on the surface of the fixed frame (3), and an upper groove is formed on the surface of the protective cover (7). It is characterized in that: a torsion spring is arranged between the limiting plate (9) and the fixed frame (3), and a first arc surface is formed on one side of the pressing block (14) close to the rubber pad (6).

4. A multi-functional integrated detection device for partial discharge of an enclosed dry-type transformer according to claim 3, characterized in that: The pushing device includes a linear slide table (151), a sliding block (152), a second spring (153), a linkage plate (154) and a connecting rod (155). The linear slide table (151) fixedly penetrates through the bottom of the inner wall of the fixed frame (3), the sliding block (152) is slidably installed on the circumferential surface of the linear slide table (151), the second spring (153) is arranged between the sliding block (152) and the linear slide table (151), the linkage plate (154) is fixedly installed on the top of the sliding block (152), the connecting rod (155) is fixedly installed on the bottom of the linkage plate (154), and a first inclined surface is formed on one side of the linkage plate (154) away from the second spring (153).

5. A multi-functional integrated detection device for partial discharge of a closed dry-type transformer according to claim 4, characterized in that: A carrying frame (156) slidably penetrates through the bottom of the linear slide table (151), a third spring (157) is arranged between the carrying frame (156) and the linear slide table (151), and a roller (158) rotatably penetrates through the inner wall of the carrying frame (156).

6. The multi-functional integrated partial discharge detection device for enclosed dry-type transformers according to claim 5, characterized in that: The stabilizing device includes an L-shaped frame (161), a rectangular plate (162), a rotating shaft (163), a rubber plate (164), and a shrapnel (165). The L-shaped frame (161) is fixedly installed at the top of the inner wall of the fixed frame (3). The rectangular plate (162) is slidably installed on the inner wall of the L-shaped frame (161). The rotating shaft (163) is fixedly installed inside the L-shaped frame (161). The rubber plate (164) is rotatably installed on the circumferential surface of the rotating shaft (163). One end of the shrapnel (165) is fixedly installed on the inner wall of the rubber plate (164), and the other end is fixedly connected to the inner wall of the L-shaped frame (161). A blind hole is formed at the top of the rectangular plate (162), and the inner wall of the connecting rod (155) is in contact with the blind hole.

7. A partial discharge multi-functional integrated detection device for a sealed dry-type transformer according to claim 6, characterized in that: A contact block (166) is fixedly installed on one side of the rectangular plate (162) close to the rubber plate (164). A T-shaped plate (167) slidably penetrates through the top of the L-shaped frame (161), and the T-shaped plate (167) moves in the vertical direction.

8. A partial discharge multi-functional integrated detection device for a closed dry-type transformer according to claim 7, characterized in that: A rectangular groove is formed on the surface of the L-shaped frame (161). A second inclined surface is formed on one side of the contact block (166) close to the T-shaped plate (167). A second arc surface is formed at the bottom of the T-shaped plate (167).

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