Transformer partial discharge on-line monitoring equipment

Abstract

The invention discloses transformer partial discharge on-line monitoring equipment, and particularly relates to the technical field of partial discharge monitoring, the transformer partial discharge on-line monitoring equipment comprises an operation box, a box cover is hinged to one side of the operation box, a sealing ring is fixedly arranged at the bottom of the box cover, a sealing groove is formed in the surface of the operation box, the sealing ring is inserted into the sealing groove, and a cleaning mechanism is arranged at the top of the box cover. The cleaning mechanism comprises an observation opening formed in the surface of the box cover, tempered glass is fixedly arranged in the observation opening, and two fixing frames are fixedly arranged at the top of the box cover. Toughened glass of an observation opening is convenient to clean, a good observation view field is maintained, a scraper blade is convenient to clean and replace, a partition plate reasonably divides the internal space of the operation box, the use effect is improved, the detection head is matched with a threaded ring and a telescopic rod, the position and the stretching length of the detection head can be flexibly adjusted according to needs, the detection head is made to be close to a monitored part more accurately, and the detection efficiency is improved. The monitoring accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of partial discharge detection, and more specifically to an online monitoring device for partial discharge of a transformer. Background Art

[0002] Partial discharge of transformers is one of the main causes of insulation degradation of power equipment. Each discharge, the impact of high-energy electrons or accelerated electrons, especially long-term partial discharge, will cause various forms of physical effects and chemical reactions. As one of the important equipment in the power system, it is necessary to monitor the transformer.

[0003] The existing transformer partial discharge online monitoring equipment is large in size and heavy in weight, which makes it inconvenient to carry outside, resulting in low practicality of the device and inconvenience in detecting transformers with high heights.

[0004] After searching, a Chinese patent with authorization announcement number CN221977032U discloses an online monitoring device for partial discharge of transformers. The structure is configured by the cooperation of a display, a battery, a processor, an operation panel, a connecting wire, a detection probe and a telescopic rod. When in use, the detection probe is taken out of the operation box and installed on the telescopic rod, and then the two ends of the connecting wire are respectively installed on the operation panel and the detection probe. Then, the information of the detection probe is transmitted to the processor through the connecting wire for analysis, and then displayed on the display, so that it is convenient for monitoring personnel to monitor the transformer and convenient to monitor transformers with higher heights. Through the cooperation of a spring, a slide plate, an insert block and a pull rod, when in use, the slide plate is driven to move by pulling the pull rod, and then the insert block is detached from the slot, so that it is convenient to disassemble and replace the detection probe.

[0005] However, when this structure is actually used, in actual transformer monitoring scenarios, especially outdoor operations, environmental conditions are often more complicated, and there may be wind, rain, or narrow space. Every time you need to view the monitoring information on the display, you have to open the box cover. This operation is relatively cumbersome and increases the workload of the monitoring personnel. In bad weather, rain may also enter the operating box, causing damage to the internal electronic components and affecting the normal use and life of the equipment. Summary of the invention

[0006] In order to overcome the above defects of the prior art, the present invention provides an online monitoring device for partial discharge of a transformer to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The transformer partial discharge online monitoring device comprises an operation box, a box cover is hingedly provided on one side of the operation box, a sealing ring is fixedly provided on the bottom of the box cover, a sealing groove is provided on the surface of the operation box, the sealing ring is plugged into the sealing groove, and a cleaning mechanism is provided on the top of the box cover;

[0009] The cleaning mechanism includes an observation port opened on the surface of the box cover, tempered glass is fixedly arranged inside the observation port, two fixed frames are fixedly arranged on the top of the box cover, sliders are slidably connected inside the two fixed frames, a handle is fixedly arranged on the top of the slider, a connecting strip is fixedly arranged on one side of the slider, a card groove is opened on the surface of the connecting strip, a card block is clamped inside the card groove, a scraper is fixedly arranged on the bottom of the card block, threaded holes are opened on the surfaces of the connecting strip and the card block, bolts are threadedly connected inside the threaded holes, the cross section of the card block is set to L shape, a card strip is rotatably connected to one side of the handle, a card frame is clamped on one side of the card strip, and one end of the card frame is connected to the surface of the fixed frame.

[0010] By adopting the above technical solution: the box cover and the operating box are connected by a sealing ring and a sealing groove to ensure the sealing of the equipment, prevent the intrusion of external impurities, facilitate stable operation, and facilitate cleaning of the tempered glass of the observation port to maintain a good observation field of view, and also facilitate cleaning and replacement of the scraper.

[0011] As a further description of the above technical solution: a connecting mechanism is provided on one side of the box cover, and the connecting mechanism includes a connecting card plate fixedly provided on one side of the box cover, a connecting frame is fixedly provided on one side of the operating box, and the connecting card plate is clamped with the connecting frame, a plurality of springs are fixedly provided on one side of the operating box, a fixed card plate is fixedly provided on one side of the plurality of springs, pressing blocks are fixedly provided on both sides of the fixed card plate, a guide groove is opened on the surface of the operating box, and the pressing block is slidably connected to the guide groove.

[0012] By adopting the above technical solution: the box cover can be easily released by pressing, which makes it convenient to open and close the box cover. The operation is simple and practical, and the pressing block is slidably connected to the guide groove to ensure the standardization and accuracy of the movement of components during the pressing operation. The overall structure is conducive to the daily use and maintenance of the equipment.

[0013] As a further description of the above technical solution: a cooling fan is installed on one side of the operation box, a partition is fixedly provided inside the operation box, a display is fixedly provided on one side of the partition, a battery is fixedly provided on one side of the display, a processor is fixedly provided on one side of the battery, a wire is fixedly provided on one side of the processor, one end of the wire passes through the operation box and extends to the outside of the operation box, a detection head is fixedly provided on one side of the wire, a threaded ring is fixedly provided on one end of the detection head, and the internal thread of the threaded ring is connected to a telescopic rod.

[0014] By adopting the above technical solution: the partitions reasonably divide the internal space of the operating box, which facilitates the orderly layout of components such as the display, battery, and processor, and is conducive to the stable operation of the equipment. The data collected by the detection head can be transmitted to the processor for analysis and processing to realize the monitoring function, and the detection head is equipped with a threaded ring and a telescopic rod, which can flexibly adjust the position and extension length of the detection head as needed, so that it can be closer to the monitoring part more accurately, thereby improving the monitoring accuracy.

[0015] Technical effects and advantages of the present invention:

[0016] 1. By setting up a cleaning mechanism, compared with the prior art, the display value can be directly viewed through the tempered glass in the viewing port, which is convenient for grasping the operation status of the equipment. When there are stains on the glass surface that affect observation, the operating handle can be conveniently moved to drive the scraper to slide and scrape off the dirt, ensuring a clear line of sight, which is conducive to checking the internal condition of the operating box at any time and facilitating subsequent maintenance operations. In addition, the scraper is fastened to the connecting bar with bolts to ensure the stability of the scraper during cleaning. At the same time, when the scraper needs to be replaced, it only needs to rotate the bolts in the opposite direction and pull the scraper outward, which is simple to operate. In addition, the L-shaped structure of the card block enhances the overall connection stability, making the scraper more convenient and reliable whether it is installed or replaced;

[0017] 2. By setting up a connecting mechanism, compared with the prior art, the operator can easily open the box cover through the cooperation of the pressing block, the fixed card plate and the spring and other components. The operation is simple and convenient, and it is convenient to check and maintain the inside of the operation box. When the box cover is closed, the sealing ring and the sealing groove cooperate closely to form an effective seal, which can effectively block the entry of external dust, water vapor and other impurities, ensure that the internal electronic components are in a good operating environment, ensure the stable and reliable operation of the equipment, improve the durability of the equipment, realize efficient and accurate online monitoring function, help to timely discover potential problems of the transformer, and ensure the safe and stable operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the overall split structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the operation box of the present invention.

[0023] The accompanying drawings are marked as follows: 1. operating box; 2. box cover; 3. sealing ring; 4. observation port; 5. tempered glass; 6. fixed frame; 7. slider; 8. handle; 9. connecting strip; 10. clamping block; 11. scraper; 12. bolt; 13. clamping strip; 14. clamping frame; 15. connecting clamping plate; 16. connecting frame; 17. spring; 18. fixed clamping plate; 19. pressing block; 20. partition; 21. display; 22. battery; 23. processor; 24. wire; 25. detection head; 26. threaded ring; 27. telescopic rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The embodiments of this application disclose Figure 1-5 The transformer partial discharge online monitoring device shown comprises an operation box 1, a box cover 2 is hingedly provided on one side of the operation box 1, a sealing ring 3 is fixedly provided on the bottom of the box cover 2, a sealing groove is provided on the surface of the operation box 1, the sealing ring 3 is plugged into the sealing groove, and a cleaning mechanism is provided on the top of the box cover 2;

[0026] The cleaning mechanism includes an observation port 4 opened on the surface of the box cover 2, a tempered glass 5 is fixedly arranged inside the observation port 4, two fixed frames 6 are fixedly arranged on the top of the box cover 2, sliders 7 are slidably connected inside the two fixed frames 6, a handle 8 is fixedly arranged on the top of the slider 7, a connecting strip 9 is fixedly arranged on one side of the slider 7, a card slot is opened on the surface of the connecting strip 9, a card block 10 is clamped inside the card slot, a scraper 11 is fixedly arranged on the bottom of the card block 10, threaded holes are opened on the surfaces of the connecting strip 9 and the card block 10, bolts 12 are threadedly connected inside the threaded holes, the cross section of the card block 10 is set to be L-shaped, a card strip 13 is rotatably connected to one side of the handle 8, a card frame 14 is clamped on one side of the card strip 13, and one end of the card frame 14 is connected to the surface of the fixed frame 6 Next, the inside of the observation port 4 is provided with a tempered glass 5, and the tempered glass 5 can directly observe the value on the surface of the display 21. When it rains or there are stains on the surface of the tempered glass 5, the card strip 13 is rotated to mobilize the card strip 13 to withdraw from the card frame 14. When the card strip 13 is inserted into the card frame 14, it can limit the random sliding of the slider 7, ensuring that the scraper 11 is in a fixed position when it is not necessary to clean the observation port 4. Then, the handle 8 is held to move, thereby driving the slider 7 to slide inside the fixed frame 6, and the slider 7 drives the connecting strip 9 to move, and the connecting strip 9 drives the scraper 11 to move, driving the scraper 11 to slide on the surface of the tempered glass 5, thereby scraping off the dirt on the surface of the tempered glass 5, ensuring that the internal situation of the operation box 1 can be clearly viewed through the observation port 4;

[0027] Moreover, bolts 12 are used for fastening so that the scraper 11 can be firmly installed on the connecting strip 9. When the scraper 11 of different specifications or after wear needs to be replaced, the bolts 12 are rotated in the reverse direction to drive the bolts 12 to withdraw from the threaded holes opened on the surfaces of the block 10 and the connecting strip 9. Since the cross-section of the block 10 is set to be L-shaped, its structural stability and the degree of firmness of the clamping with the connecting strip 9 are enhanced, and then the scraper 11 can be pulled outward to be removed.

[0028] Reference Figure 2-3As shown, a connecting mechanism is provided on one side of the box cover 2, and the connecting mechanism includes a connecting card plate 15 fixedly provided on one side of the box cover 2, a connecting frame 16 is fixedly provided on one side of the operation box 1, and the connecting card plate 15 is clamped with the connecting frame 16, and a plurality of springs 17 are fixedly provided on one side of the operation box 1, and a fixed card plate 18 is fixedly provided on one side of the plurality of springs 17, and a pressing block 19 is fixedly provided on both sides of the fixed card plate 18, and a guide groove is provided on the surface of the operation box 1, and the pressing block 19 is slidably connected with the guide groove, and then the box cover 2 is opened, and at this time the operator presses the pressing block 19, and the pressing The pressing block 19 slides inward along the guide groove, driving the fixed card plate 18 to move inward to overcome the elastic force of the spring 17, so that the fixed card plate 18 is disengaged from the connecting card plate 15, thereby releasing the fixation of the box cover 2, and then the box cover 2 is opened, so that the connecting card plate 15 is withdrawn from the inside of the connecting frame 16, and the sealing ring 3 is withdrawn from the sealing groove. When the box cover 2 is closed, the sealing ring 3 is tightly embedded in the sealing groove to form an effective sealing structure, which can prevent external dust, water vapor and other impurities from entering the interior of the operating box 1, ensuring stable and reliable operation of the equipment and maintaining the accuracy of monitoring.

[0029] Reference Figure 4-5 As shown, a cooling fan is installed on one side of the operation box 1, a partition 20 is fixedly provided inside the operation box 1, a display 21 is fixedly provided on one side of the partition 20, a battery 22 is fixedly provided on one side of the display 21, a processor 23 is fixedly provided on one side of the battery 22, a wire 24 is fixedly provided on one side of the processor 23, one end of the wire 24 passes through the operation box 1 and extends to the outside of the operation box 1, a detection head 25 is fixedly provided on one side of the wire 24, a threaded ring 26 is fixedly provided on one end of the detection head 25, and a telescopic rod 27 is connected to the internal thread of the threaded ring 26, the interior of the operation box 1 is partitioned by the partition 20, a display 21 is fixed on one side of the partition 20 for intuitively displaying monitoring data information for the convenience of operators to view, and the battery 22 provides a detection head 25 for the entire equipment. Power support ensures the normal operation of each electronic component. The processor 23 is the core control and data processing unit of the equipment. It receives the data collected by the detection head 25 and performs analysis and processing operations. The detection head 25 is threadedly connected to the telescopic rod 27 through a threaded ring 26 fixed at one end, which is convenient for adjusting the position and extension length of the detection head 25 according to actual monitoring needs, so that it can accurately approach the key parts of the monitored equipment. After the detection head 25 collects the partial discharge related signal of the transformer, the signal is transmitted to the processor 23 through the wire 24. The processor 23 analyzes and processes the signal according to the preset algorithm and standard, determines whether there is any partial discharge abnormality in the transformer, and displays the corresponding results on the display 21, thereby realizing the online monitoring function of the partial discharge of the transformer.

[0030] Working principle of the present invention:

[0031] The present invention is an online monitoring device for partial discharge of transformer. When the device is in use, a tempered glass 5 is arranged inside the observation port 4, and the tempered glass 5 can directly observe the value on the surface of the display 21. When it rains or stains remain on the surface of the tempered glass 5, the card strip 13 is rotated to mobilize the card strip 13 to withdraw from the card frame 14. When the card strip 13 is inserted into the card frame 14, it can limit the random sliding of the slider 7, ensuring that the scraper 11 is in a fixed position when the observation port 4 does not need to be cleaned. Then, the handle 8 is held to move, thereby driving the slider 7 to slide inside the fixed frame 6, and the slider 7 drives the connecting strip 9 to move, and the connecting strip 9 drives the scraper 11 to move, driving the scraper 11 to slide on the surface of the tempered glass 5, thereby scraping off the dirt on the surface of the tempered glass 5, and ensuring that the internal situation of the operation box 1 can be clearly viewed through the observation port 4;

[0032] The bolts 12 are used to fasten the scraper 11 so that it can be firmly mounted on the connecting strip 9. When the scraper 11 of different specifications or worn scraper 11 needs to be replaced, the bolts 12 are rotated in the opposite direction to drive the bolts 12 to withdraw from the threaded holes opened on the surfaces of the clamping block 10 and the connecting strip 9. Since the cross section of the clamping block 10 is set in an L shape, its structural stability and the degree of firmness of the clamping connection with the connecting strip 9 are enhanced, and then the scraper 11 can be pulled outward to be taken out;

[0033] Next, the box cover 2 is opened. At this time, the operator presses the pressing block 19, and the pressing block 19 slides inward along the guide groove, driving the fixed card plate 18 to overcome the elastic force of the spring 17 and move inward, so that the fixed card plate 18 is disengaged from the connecting card plate 15, thereby releasing the fixation of the box cover 2, and then the box cover 2 is opened, so that the connecting card plate 15 is withdrawn from the inside of the connecting frame 16, and the sealing ring 3 is withdrawn from the sealing groove. When the box cover 2 is closed, the sealing ring 3 is tightly embedded in the sealing groove to form an effective sealing structure, which can prevent external dust, water vapor and other impurities from entering the inside of the operating box 1, ensuring stable and reliable operation of the equipment and maintaining the accuracy of monitoring;

[0034] The interior of the operating box 1 is partitioned by a partition 20. A display 21 is fixed on one side of the partition 20 for intuitively displaying monitoring data information for easy viewing by operators. The battery 22 provides power support for the entire device to ensure the normal operation of each electronic component. The processor 23 is the core control and data processing unit of the device. It receives data collected by the detection head 25, and performs analysis and processing operations. The inside of the operating box 1 is dissipated by a cooling fan. The detection head 25 is threadedly connected to the telescopic rod 27 through a threaded ring 26 fixed at one end, which is convenient for adjusting the position and extension length of the detection head 25 according to actual monitoring needs, so that it can accurately approach the key parts of the monitored equipment. After the detection head 25 collects the partial discharge related signal of the transformer, the signal is transmitted to the processor 23 through the wire 24. The processor 23 analyzes and processes the signal according to the preset algorithm and standard, determines whether there is any abnormal partial discharge in the transformer, and displays the corresponding result on the display 21, thereby realizing the online monitoring function of the partial discharge of the transformer.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A transformer partial discharge online monitoring device, comprising an operating box (1), characterized in that: A box cover (2) is hingedly provided on one side of the operation box (1), a sealing ring (3) is fixedly provided on the bottom of the box cover (2), a sealing groove is provided on the surface of the operation box (1), the sealing ring (3) is plugged into the sealing groove, and a cleaning mechanism is provided on the top of the box cover (2); The cleaning mechanism comprises an observation port (4) provided on the surface of the box cover (2), wherein a tempered glass (5) is fixedly arranged inside the observation port (4), two fixed frames (6) are fixedly arranged on the top of the box cover (2), and sliders (7) are slidably connected inside the two fixed frames (6), and a handle (8) is fixedly arranged on the top of the slider (7), and a connecting strip (9) is fixedly arranged on one side of the slider (7), and a card slot is provided on the surface of the connecting strip (9), and a card block (10) is carded inside the card slot, and a scraper (11) is fixedly arranged at the bottom of the card block (10), and threaded holes are provided on the surfaces of the connecting strip (9) and the card block (10), and bolts (12) are threadedly connected inside the threaded holes.

2. The transformer partial discharge online monitoring device according to claim 1, characterized in that: The cross section of the clamping block (10) is arranged to be L-shaped, one side of the handle (8) is rotatably connected to a clamping strip (13), one side of the clamping strip (13) is clamped to a clamping frame (14), and one end of the clamping frame (14) is connected to the surface of the fixed frame (6).

3. The transformer partial discharge online monitoring device according to claim 1, characterized in that: A connecting mechanism is provided on one side of the box cover (2), the connecting mechanism comprising a connecting card plate (15) fixedly provided on one side of the box cover (2), a connecting frame (16) is fixedly provided on one side of the operation box (1), and the connecting card plate (15) is connected to the connecting frame (16) by snapping.

4. The transformer partial discharge online monitoring device according to claim 1, characterized in that: A plurality of springs (17) are fixedly arranged on one side of the operation box (1), a fixed clamping plate (18) is fixedly arranged on one side of each of the plurality of springs (17), a pressing block (19) is fixedly arranged on both sides of the fixed clamping plate (18), a guide groove is provided on the surface of the operation box (1), and the pressing block (19) is slidably connected to the guide groove.

5. The transformer partial discharge online monitoring device according to claim 1, characterized in that: A cooling fan is installed on one side of the operation box (1), a partition (20) is fixedly installed inside the operation box (1), a display (21) is fixedly installed on one side of the partition (20), a battery (22) is fixedly installed on one side of the display (21), and a processor (23) is fixedly installed on one side of the battery (22).

6. The transformer partial discharge online monitoring device according to claim 1, characterized in that: A wire (24) is fixedly provided on one side of the processor (23), one end of the wire (24) passes through the operation box (1) and extends to the outside of the operation box (1), and a detection head (25) is fixedly provided on one side of the wire (24).

7. The transformer partial discharge online monitoring device according to claim 1, characterized in that: A threaded ring (26) is fixedly provided at one end of the detection head (25), and a telescopic rod (27) is connected to the inner thread of the threaded ring (26).

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