Lightning arrester on-line monitoring device

Abstract

The application discloses a lightning arrester on-line monitoring device and relates to the technical field of lightning arrester monitoring installation.The lightning arrester on-line monitoring device comprises an installation platform, lightning arresters are arranged at the top of the installation platform, grounding mechanisms are arranged on the outer walls of the bottoms of the lightning arresters, sensing mechanisms are arranged in the grounding mechanisms, support columns are arranged at the middle positions of the bottom of the installation platform, installation mechanisms that are symmetrically distributed upwards and downwards are arranged on the outer walls of the support columns on the same side of the grounding mechanisms, and transmission machine boxes are arranged between the installation mechanisms. The lower engaging teeth are fixedly connected with the installation columns to form stable bases and provide rigid support for the whole fixing system. The upper engaging teeth are designed to be rotatable, cooperate with the advancing rods and the staggered clamping rods, can automatically adjust the clamping angle and strength according to the sizes of the cylindrical bodies, realize seamless connection from rigid support to flexible clamping, and ensure that cylindrical bodies with different sizes are stably fixed.

Description

Technical Field

[0001] This invention relates to the field of surge arrester monitoring and installation technology, and more particularly to an online surge arrester monitoring device. Background Technology

[0002] Online surge arrester monitoring technology primarily assesses the insulation condition of high-voltage electrical equipment by real-time monitoring of the surge arrester's total current, resistive current, capacitive current, number of lightning strikes, and timing of lightning strikes. The monitoring system can promptly detect potential faults and provide crucial data for condition-based maintenance, thereby improving equipment utilization and overall economic efficiency.

[0003] Existing online surge arrester monitoring devices are all produced with standardized installation mechanisms, which cannot be used to install surge arresters of different diameters. They require external installation devices or metal clamps to be attached to the surge arresters. Over time, wind and rain can corrode the installation devices, causing the monitoring devices to fall and become damaged.

[0004] When the monitoring device is monitoring the surge arrester, in extreme weather conditions, the lightning strike may exceed the maximum resistance of the surge arrester material. Since the monitoring device is installed on the surge arrester and cannot be actively disconnected, the monitoring device may be damaged as a result. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an online monitoring device for surge arresters, which solves the problem mentioned in the background art that surge arresters cannot be installed according to the diameter of the surge arrester support column. Existing surge arrester monitoring devices are installed by binding with aluminum and copper strips, which eventually become ineffective due to corrosion after prolonged use, causing the monitoring device to fall off and be damaged.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An online monitoring device for surge arresters includes an installation platform. Surge arresters are installed at both ends of the top of the installation platform. A grounding mechanism is installed on one side of the bottom outer wall of each surge arrester. A sensing mechanism is installed within each grounding mechanism. A support column is installed in the middle of the bottom of the installation platform. Installation mechanisms are symmetrically distributed vertically on the outer wall of each support column on the same side as the grounding mechanism. A transmission housing is installed between the installation mechanisms. A matching mechanism is installed on the side of each installation mechanism that is away from the matching mechanism. A fixing mechanism is installed on the adjacent side of each installation mechanism that is away from the matching mechanism. A fuse protection mechanism is installed on the adjacent side of the transmission housing that is away from the installation mechanism.

[0008] The fuse protection mechanism includes a torsion spring seat. The mounting platform has symmetrical torsion spring seats on the same side as the sensing mechanism. Each torsion spring seat has a crescent-shaped rotating rod rotatably sleeved on its outer wall. Each crescent-shaped rotating rod has a chassis connection end at its bottom, and the chassis connection end is connected to the transmission chassis at the end closest to the transmission chassis. Each crescent-shaped rotating rod has a rotating fuse connecting rod on the side away from the transmission chassis. Each fuse connecting rod has a fixing clamp at the end away from the crescent-shaped rotating rod. The fuse connecting rod is made of the same material as the surge arrester.

[0009] Furthermore, the grounding mechanism includes a first grounding wire, the bottom of which is provided with a connecting I-shaped frame, the bottom of which is provided with a second grounding wire, and the fixing clamps are all clamped on the outer wall of the first grounding wire.

[0010] Furthermore, the first grounding wire and the second grounding wire are on the same axis, and both the first grounding wire and the second grounding wire are made of galvanized copper material.

[0011] Furthermore, the sensing mechanism includes an upper connecting line, a sensor is provided at the bottom of each upper connecting line, a lower connecting line is provided at the bottom of each sensor, and a sensor connection end is provided on the outer wall of each sensor. The upper connecting line, the sensor and the lower connecting line are all located within a connecting I-beam frame, and the sensor connection end is also located within the connecting I-beam frame. Moreover, the sensor connection end extends out of the connecting I-beam frame and connects with the chassis connection end.

[0012] Furthermore, the installation mechanism includes a mounting frame, on each side of the mounting frame that is far from each other, there are evenly distributed sliding grooves, and on each side of the mounting frame that is far from the sliding groove, there are evenly distributed through holes, and on each side of the mounting frame that is far from the sliding groove, there are relief grooves, and on each side of the relief groove, there are mounting posts, and the mounting frames are all located between the opposite connecting I-beams.

[0013] Furthermore, the mounting brackets are symmetrically distributed on the upper and lower sides of the transmission chassis, and the perforations are all interconnected with the sliding grooves.

[0014] Furthermore, the fitting mechanism includes fitting connecting rods, which are symmetrically distributed vertically. Each fitting connecting rod has a linkage rod between its opposite ends away from the through hole. Each fitting connecting rod has a three-linked sliding wheel at its opposite end near the through hole. Each fitting connecting rod has a sliding block in the middle section on one side of its opposite side. Each sliding block and the bottom of the three-linked sliding wheel have a through rod between them.

[0015] Furthermore, all the sliding blocks slide within the sliding grooves, all the through rods slide within the sliding grooves, and all the sliding grooves pass through the through holes.

[0016] Furthermore, the fixing mechanism includes meshing teeth, with two meshing teeth forming a group. Each group of meshing teeth is located within a clearance groove. A travel rod is provided on the side of the outer wall of the upper meshing tooth of each group away from the mounting frame. A misalignment clamping rod is provided at the top of the end of the travel rod away from the meshing tooth. A sliding guide rail is provided on the side of the misalignment clamping rod near the travel rod. A rotating shaft is provided on the side of the inner wall of the upper and lower rotating shafts of each group of rotating shafts near the transmission housing. A spring is provided between the rotating shafts.

[0017] Furthermore, the lower meshing teeth of each group of meshing teeth are fixedly connected to the mounting post, and the upper meshing teeth of each group of meshing teeth are rotatably connected to the mounting post. The three sliding wheels slide within the sliding guide rail, and the sliding guide rail is staggered and symmetrically distributed. The upper and lower meshing teeth of each group mesh with each other.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. The lower meshing teeth are fixedly connected to the mounting column to form a stable base, providing rigid support for the entire fixing system. The upper meshing teeth are rotatable and, together with the travel rod and the misaligned clamping rod, can automatically adjust the clamping angle and force according to the size of the cylinder, achieving a seamless connection from rigid support to flexible clamping. This ensures that cylinders of different sizes are firmly fixed. The misaligned and symmetrical distribution of the sliding guide rails allows the three sliding wheels to drive the misaligned clamping rods to make precise linear displacements during the sliding process, avoiding the jamming or displacement deviation problems that may occur with traditional parallel guide rails, and achieving uniform distribution of clamping force.

[0020] 2; When installed on surge arrester support columns of different diameters, the matching mechanism contacts the surge arrester support column through the ends of multiple matching connecting rods, and slides within the sliding block to form the outer wall shape of the surge arrester support column, extending out of the outside of the transmission box, forming an external eaves that provide shade during maintenance and protection from rain and dust during operation.

[0021] 3: When the monitoring device monitors the surge arrester, if the surge arrester's resistance exceeds its maximum resistance due to a lightning strike, the current will generate high voltage and high heat. Since the fusible connecting rod and the surge arrester are made of the same material, the resistance of the fusible connecting rod will also exceed its resistance, causing it to fuse. In conjunction with the torsion spring seat, the crescent-shaped rotating rod will rotate rapidly, quickly disconnecting the chassis connection terminal from the sensor connection terminal, thereby protecting the monitoring device from being damaged by the current generated by the lightning strike. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the online monitoring device for surge arresters proposed in this invention;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a schematic diagram of the installation mechanism.

[0025] Figure 4 This is a schematic diagram of the alignment mechanism.

[0026] Figure 5 This is a schematic diagram of the through-rod structure;

[0027] Figure 6 This is a schematic diagram of the transmission chassis structure;

[0028] Figure 7 This is a schematic diagram of the fixed mechanism structure;

[0029] Figure 8 for Figure 7 Enlarged structural diagram at point B;

[0030] Figure 9 This is a schematic diagram of the side profile of the meshing teeth.

[0031] In the diagram: 1. Mounting platform; 2. Lightning arrester; 3. Grounding mechanism; 301. First grounding wire; 302. Connecting I-beam; 303. Second grounding wire; 4. Support column; 5. Sensing mechanism; 501. Upper connecting wire; 502. Sensor; 503. Lower connecting wire; 504. Sensor connection terminal; 6. Mounting mechanism; 601. Mounting bracket; 602. Slide groove; 603. Perforation; 604. Clearance groove; 605. Mounting column; 7. Transmission box; 8. Fitting machine 801. Matching connecting rod; 802. Linkage rod; 803. Three-link sliding wheel; 804. Sliding block; 805. Through rod; 9. Fixing mechanism; 901. Meshing tooth; 902. Traveling rod; 903. Misalignment clamping rod; 904. Sliding guide rail; 905. Rotating shaft; 906. Spring; 10. Fusible protection mechanism; 1001. Torsion spring seat; 1002. Crescent rotating rod; 1003. Chassis connecting end; 1004. Fusible connecting rod; 1005. Fixing clamp. Detailed Implementation Example 1

[0032] Reference Figures 1-9The surge arrester online monitoring device includes an installation platform 1. Surge arresters 2 are installed at both ends of the top of the installation platform 1. A grounding mechanism 3 is installed on one side of the bottom outer wall of each surge arrester 2. A sensing mechanism 5 is installed inside each grounding mechanism 3. A support column 4 is installed in the middle of the bottom of the installation platform 1. Installation mechanisms 6, symmetrically distributed vertically, are installed on the outer wall of the support column 4 on the same side as the grounding mechanism 3. A transmission box 7 is installed between the installation mechanisms 6. A matching mechanism 8 is installed on the side of each installation mechanism 6 away from the matching mechanism 8. A fixing mechanism 9 is installed on the adjacent side of each installation mechanism 6 away from the installation mechanism 6. A fuse protection mechanism 10 is installed on the adjacent side of the transmission box 7 away from the installation mechanism 6. The surge arrester online monitoring device is based on the installation platform 1, with surge arresters 2 installed at both ends of the top, and grounded at the bottom through the grounding mechanism 3, with built-in sensing mechanisms 5 monitoring parameters. The bottom of the installation platform 1 is supported by the support columns 4, and the outer wall of the support columns 4 is equipped with the installation mechanisms 6, with the transmission box 7 installed between them to process and transmit data. The mounting mechanism 6 is equipped with a matching mechanism 8 and a fixing mechanism 9 on both sides to adapt to the installation environment and enhance the connection strength. The transmission box 7 is equipped with a fuse protection mechanism 10 on the adjacent side to ensure the safety of the device. All components work together to achieve real-time online monitoring of the surge arrester.

[0033] The fuse protection mechanism 10 includes a torsion spring seat 1001. Symmetrical torsion spring seats 1001 are provided on the same side of the mounting platform near the sensing mechanism 5. A crescent-shaped rotating rod 1002 is rotatably sleeved on the outer wall of each torsion spring seat 1001. A chassis connection end 1003 is provided at the bottom of each crescent-shaped rotating rod 1002, and the end of the chassis connection end 1003 closest to the transmission chassis 7 is connected to the transmission chassis 7. A rotating fuse connecting rod 1004 is provided on the side of each crescent-shaped rotating rod 1002 away from the transmission chassis 7. A fixing clip 10 is provided at the end of each fuse connecting rod 1004 away from the crescent-shaped rotating rod 1002. 05. The fuse connecting rod 1004 and the surge arrester 2 are made of the same material. The fuse protection mechanism 10 of the surge arrester online monitoring device is supported by a symmetrical torsion spring seat 1001 on the mounting platform. A crescent rotating rod 1002 is rotatably sleeved on it. The bottom chassis connection end 1003 of the crescent rotating rod 1002 is connected to the transmission chassis 7. The fuse connecting rod 1004 is rotatably connected to the side away from the transmission chassis 7. The end of the fuse connecting rod 1004 is provided with a fixing clip 1005 for connecting the circuit. The fuse connecting rod 1004 is made of the same material as the surge arrester 2. It can melt and cut off the circuit when the circuit is abnormal, so as to ensure the safety of the device.

[0034] The grounding mechanism 3 includes a first grounding wire 301, with a connecting I-beam 302 at the bottom of each first grounding wire 301. A second grounding wire 303 is located at the bottom of each connecting I-beam 302. Fixing clips 1005 are clamped onto the outer wall of the first grounding wire 301. The first grounding wire 301 and the second grounding wire 303 are coaxial. Both the first grounding wire 301 and the second grounding wire 303 are made of galvanized copper. The grounding mechanism 3 of the surge arrester online monitoring device consists of the first grounding wire 301, the connecting I-beam 302, and the second grounding wire 303. The first grounding wire 301 connects to the upper equipment, and its bottom is connected to the second grounding wire 303 via the connecting I-beam 302 to introduce current into the earth. The fixing clips 1005 of the fuse protection mechanism 10 are clamped onto the outer wall of the first grounding wire 301. Both are coaxial and made of galvanized copper, a material with good conductivity and corrosion resistance, ensuring reliable grounding and safe operation of the device.

[0035] The sensing mechanism 5 includes an upper connecting line 501, with a sensor 502 at the bottom of each upper connecting line 501 and a lower connecting line 503 at the bottom of each sensor 502. A sensor connection end 504 is provided on the outer wall of each sensor 502. The upper connecting line 501, sensor 502, and lower connecting line 503 are all located within a connecting frame 302. The sensor connection ends 504 are also located within the connecting frame 302, and each sensor connection end 504 extends out of the connecting frame 302 and connects to the chassis connection end 1003. Next, the sensing mechanism 5 of the surge arrester online monitoring device is composed of an upper connecting line 501, a sensor 502 and a lower connecting line 503 connected in series. The upper connecting line 501 transmits the surge arrester electrical signal to the sensor 502. The sensor 502 converts and processes the signal and transmits it out through the lower connecting line 503. The sensor connection end 504 on its outer wall extends out to the connecting I-beam 302 and is connected to the chassis connection end 1003. The entire sensing mechanism 5 is placed inside the connecting I-beam 302, which ensures accurate signal transmission and stable operation of the mechanism. Example 2

[0036] Reference Figures 1-9The surge arrester online monitoring device includes an installation mechanism 6 comprising a mounting frame 601. Each mounting frame 601 has a uniformly distributed groove 602 on its opposite side. Each mounting frame 601 has a uniformly distributed through-hole 603 on its long side adjacent to the groove 602. Each mounting frame 601 has a clearance groove 604 on its short side adjacent to the groove 602. Each clearance groove 604 has a mounting post 605 on one opposite side. The mounting frames 601 are located between the connecting I-beams 302 and are symmetrically distributed on the upper and lower sides of the transmission housing 7. The through-holes 603 are interconnected with the grooves 602. The installation mechanism 6 of the surge arrester online monitoring device is centered on the mounting frame 601 and is made of high-strength, corrosion-resistant material. The mounting bracket 601 has evenly distributed grooves 602 on both sides to facilitate component installation and adjustment. The adjacent long side has through holes 603 that communicate with the grooves 602 for fixing and wiring. The adjacent short side has clearance grooves 604 and mounting posts 605 to provide clearance space and additional mounting points.

[0037] The fitting mechanism 8 includes fitting connecting rods 801, which are symmetrically distributed vertically. Each end of the fitting connecting rod 801 away from the through hole 603 is provided with a linkage rod 802. Each end of the fitting connecting rod 801 near the through hole 603 is provided with a three-linked sliding wheel 803. Each side of the fitting connecting rod 801 is provided with a sliding block 804. Each sliding block 804 and the bottom of the three-linked sliding wheel 803 are provided with a through rod 805. The sliding blocks 804 and the through rods 805 slide within the sliding grooves 602, and the sliding grooves 602 all penetrate the through hole 603. The fitting mechanism 8 of the surge arrester online monitoring device is centered on the fitting connecting rods 801, which are symmetrically distributed vertically and linked by the linkage rods 802. A three-linked sliding wheel 803 is provided near the end of the through hole 603, and a sliding block 804 is provided in the middle section. The two are connected by a through rod 805. The sliding block 804 and the through rod 805 slide in the groove 602 that passes through the through hole 603, which ensures the stability of the mechanism and close connection with the installation mechanism 6.

[0038] The fixing mechanism 9 includes meshing teeth 901, with two meshing teeth 901 forming a group. Each group of meshing teeth 901 is located within a relief groove 604. A traveling rod 902 is provided on the outer wall of the upper meshing tooth 901 of each group, away from the mounting bracket 601. A misalignment clamping rod 903 is provided at the top of the end of the traveling rod 902 away from the meshing tooth 901. A sliding guide rail 904 is provided on the side of the misalignment clamping rod 903 near the traveling rod 902. A rotating shaft 905 is provided on the inner wall of both the upper and lower rotating shafts 905 of each group, near the transmission housing 7. Springs 906 are provided between the rotating shafts 905. The lower meshing teeth 901 of each set of meshing teeth 901 are fixedly connected to the mounting column 605, and the upper meshing teeth 901 of each set of meshing teeth 901 are rotatably connected to the mounting column 605. The three sliding wheels 803 slide within the sliding guide rail 904, which is symmetrically distributed in a staggered manner. The upper and lower meshing teeth 901 of each set mesh with each other. The fixing mechanism 9 of the surge arrester online monitoring device is centered on the meshing teeth 901, and the two sets of meshing teeth 901 are placed in the relief groove 604. The upper meshing teeth 901 are connected to the travel rod 902 and the staggered clamping rod 903, the latter of which has a sliding guide rail 904 for the three sliding wheels 803 to slide, and they are symmetrically distributed in a staggered manner. The meshing tooth 901 has a rotating shaft 905 and a spring 906 inside. The lower meshing tooth 901 is fixed to the mounting post 605, and the upper one is rotatably connected. The two mesh with each other to achieve stable fixation and precise positioning.

[0039] In this invention, the lower meshing tooth 901 is fixedly connected to the mounting post 605, providing stable support, while the upper meshing tooth 901 is rotatably connected to the mounting post 605, allowing it to rotate as needed. The design of the travel rod 902 and the misaligned clamping rod 903 enables the fixing mechanism 9 to perform precise clamping operations on cylinders of different sizes. The misaligned and symmetrical distribution of the sliding guide rail 904 allows the three sliding wheels 803 to drive the misaligned clamping rod 903 to make precise displacements during sliding, thereby achieving close fitting and fixing of cylinders of different sizes. The combined use of the rotating shaft 905 and the spring 906 provides elastic support and automatic reset function for the fixing mechanism 9. When the rotatable meshing tooth 901 engages with the non-rotatable meshing tooth 901 through object contact and compression, it locks and fixes the overall structure. When the object is removed, the spring 906 disengages the rotatable meshing tooth 901 from the non-rotatable meshing tooth 901, allowing for disassembly.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A surge arrester online monitoring device, comprising an installation platform (1), characterized in that; The installation platform (1) is equipped with surge arresters (2) at both ends of the top. The surge arresters (2) are equipped with grounding mechanisms (3) on one side of the bottom outer wall. The grounding mechanisms (3) are equipped with sensing mechanisms (5). The installation platform (1) is equipped with support columns (4) at the middle of the bottom. The support columns (4) are equipped with installation mechanisms (6) that are symmetrically distributed on the same side as the grounding mechanisms (3). The installation mechanisms (6) are equipped with transmission boxes (7) opposite each other. The installation mechanisms (6) are equipped with matching mechanisms (8) on the side away from each other. The installation mechanisms (6) are equipped with fixing mechanisms (9) on the adjacent side away from the matching mechanisms (8). The transmission boxes (7) are equipped with fuse protection mechanisms (10) on the adjacent side away from the installation mechanisms (6). The fuse protection mechanism (10) includes a torsion spring seat (1001). The mounting platform is provided with symmetrical torsion spring seats (1001) on the same side as the sensing mechanism (5). A crescent rotating rod (1002) is rotatably sleeved on the outer wall of each torsion spring seat (1001). A chassis connection end (1003) is provided at the bottom of each crescent rotating rod (1002). The chassis connection end (1003) is connected to the transmission chassis (7) at the end near the transmission chassis (7). A rotating fuse connecting rod (1004) is provided on the side of the crescent rotating rod (1002) away from the transmission chassis (7). A fixing clip (1005) is provided on the end of the fuse connecting rod (1004) away from the crescent rotating rod (1002). The fuse connecting rod (1004) and the surge arrester (2) are made of the same material. The installation mechanism (6) includes a mounting frame (601). Each side of the mounting frame (601) away from each other is provided with a uniformly distributed sliding groove (602). Each side of the mounting frame (601) away from the sliding groove (602) is provided with a uniformly distributed through hole (603). Each side of the mounting frame (601) away from the sliding groove (602) is provided with a relief groove (604). Each side of the relief groove (604) is provided with a mounting post (605). The fitting mechanism (8) includes fitting connecting rods (801), which are symmetrically distributed vertically. Each end of the fitting connecting rod (801) away from the through hole (603) is provided with a linkage rod (802). Each end of the fitting connecting rod (801) near the through hole (603) is provided with a three-linked sliding wheel (803). Each side of the fitting connecting rod (801) is provided with a sliding block (804). Each sliding block (804) and the bottom of the three-linked sliding wheel (803) are provided with a through rod (805). The sliding blocks (804) all slide within the sliding grooves (602), the through rods (805) all slide within the sliding grooves (602), and the sliding grooves (602) all pass through the through holes (603). The fixing mechanism (9) includes meshing teeth (901), with two meshing teeth (901) forming a group. Each group of meshing teeth (901) is located in the relief groove (604). Each group of meshing teeth (901) has a travel rod (902) on the side of the outer wall of the upper meshing tooth (901) away from the mounting bracket (601). The top of the end of the travel rod (902) away from the meshing tooth (901) is provided with a misaligned clamping rod (903). The side of the misaligned clamping rod (903) near the travel rod (902) is provided with a sliding guide rail (904). Each group of rotating shafts (905) has a rotating shaft (905) on the side of the inner wall of the upper rotating shaft (905) and the lower rotating shaft (905) near the transmission box (7). Each rotating shaft (905) is provided with a spring (906) between them. The lower meshing teeth (901) of each group of meshing teeth (901) are fixedly connected to the mounting post (605), and the upper meshing teeth (901) of each group of meshing teeth (901) are rotatably connected to the mounting post (605). The three sliding wheels (803) slide in the sliding guide rail (904), and the sliding guide rail (904) is symmetrically distributed in a staggered manner. The upper meshing teeth (901) and the lower meshing teeth (901) of each group are meshed with each other.

2. The online monitoring device for surge arresters according to claim 1, characterized in that, The grounding mechanism (3) includes a first grounding wire (301), and a connecting frame (302) is provided at the bottom of the first grounding wire (301). A second grounding wire (303) is provided at the bottom of the connecting frame (302). The fixing clamp (1005) is clamped on the outer wall of the first grounding wire (301).

3. The online monitoring device for surge arresters according to claim 2, characterized in that, The first grounding wire (301) and the second grounding wire (303) are on the same axis, and both the first grounding wire (301) and the second grounding wire (303) are made of galvanized copper material.

4. The online monitoring device for surge arresters according to claim 2, characterized in that, The sensing mechanism (5) includes an upper connecting line (501), a sensor (502) is provided at the bottom of the upper connecting line (501), a lower connecting line (503) is provided at the bottom of the sensor (502), and a sensor connection end (504) is provided on the outer wall of the sensor (502). The upper connecting line (501), the sensor (502) and the lower connecting line (503) are all located in the connecting frame (302). The sensor connection end (504) is located in the connecting frame (302), and the sensor connection end (504) extends out of the connecting frame (302) and connects with the chassis connection end (1003).

5. The online monitoring device for surge arresters according to claim 4, characterized in that, The mounting brackets (601) are symmetrically distributed on the upper and lower sides of the transmission box (7), and the perforations (603) are all connected to the slide grooves (602). The mounting brackets (601) are all located between the connecting I-beams (302).

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