Solar-powered lightning arrester lightning and leakage current on-line detection device and system

Abstract

The application discloses a lightning arrester lightning stroke and electric leakage current on-line detection device and system powered by solar energy, solves the problem that two current state detections are not easy to be realized by a single device and detection is troublesome, and comprises a cylinder, a threading groove is formed in the inner side of the cylinder, a current induction assembly is arranged on the outer side of the cylinder, the current induction assembly comprises end plates which are symmetrically arranged on the outer sides of the two ends of the cylinder, a partition plate is fixedly arranged on the outer side of the cylinder, the partition plate is located between the two end plates, an outer cylinder is fixedly arranged between the two end plates, a wire harness mounting cavity is formed between the cylinder, the two end plates and the outer cylinder, the wire harness mounting cavity is divided into two cavities by the partition plate, and the lengths of the two cavities are different; in the working process, the second induction coil is provided with more turns, so that the smaller electric leakage current can be conveniently inductively detected, and the first induction coil is provided with fewer turns, so that the larger lightning stroke current can be conveniently inductively detected.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lightning arrester detection, and particularly relates to a lightning arrester lightning and leakage current on-line detection device and system powered by solar energy. BACKGROUND

[0002] The lightning arrester lightning and leakage current on-line detection device is an intelligent equipment for lightning arrester state monitoring of a power system, and aims to solve problems such as dependence on mains power supply, low off-line detection efficiency, and lagging fault early warning in traditional lightning arrester monitoring.

[0003] When lightning current and leakage current are detected, two devices are needed for detection, and it is not easy to realize two current state detections by a single device, and detection is troublesome. SUMMARY

[0004] In view of the above problems, the lightning arrester lightning and leakage current on-line detection device and system powered by solar energy are provided to effectively solve the problem that it is not easy to realize two current state detections by a single device.

[0005] To achieve the above object, the application provides the following technical scheme: the lightning arrester lightning and leakage current on-line detection device powered by solar energy, which comprises a cylinder, a threading groove is formed in the inner side of the cylinder, and a current induction assembly is arranged on the outer side of the cylinder.

[0006] The current induction assembly comprises end plates symmetrically arranged on the outer sides of two ends of the cylinder, a partition plate is fixedly arranged on the outer side of the cylinder, the partition plate is located between the two end plates, an outer cylinder is fixedly arranged between the two end plates, a wire harness mounting cavity is formed between the cylinder, the two end plates and the outer cylinder, the wire harness mounting cavity is divided into two cavities by the partition plate, the two cavities are different in length, a first induction coil is wound and arranged in the shorter cavity, and a second induction coil is wound and arranged in the longer cavity, the number of winding turns of the second induction coil is greater than that of the first induction coil.

[0007] One end of the cylinder is provided with a common terminal end, one end of the first induction coil and one end of the second induction coil are electrically connected with the common terminal end, a first lower connection terminal and a second lower connection terminal are arranged on the top end of the outer cylinder, the second lower connection terminal is located on the side of the first lower connection terminal away from the common terminal end, the other end of the first induction coil is electrically connected with the first lower connection terminal, and the other end of the second induction coil is electrically connected with the second lower connection terminal.

[0008] Preferably, the top end of the outer cylinder is fixedly provided with a top box, the first lower electrical terminal and the second lower electrical terminal are located inside the top box, the inside of the top box is provided with a mobile electrical connection assembly, the top box and the cylinder body are provided with a heat dissipation protection assembly, the top end of the top box is fixedly provided with a lightning current detector, and the top end of the top box is fixedly provided with a leakage current detector.

[0009] Preferably, the mobile electrical connection assembly comprises a first upper wiring terminal and a second upper wiring terminal which are installed on the inner top wall of the top box, the first upper wiring terminal is located directly above the first lower electrical terminal, the second upper wiring terminal is located directly above the second lower electrical terminal, the two ends of the internal circuit of the lightning current detector are electrically connected with the common terminal and the first upper wiring terminal respectively, and the two ends of the internal circuit of the leakage current detector are electrically connected with the common terminal and the second upper wiring terminal respectively.

[0010] Preferably, the inside of the top box is provided with a moving plate, a conductive rod is longitudinally installed in the inside of the moving plate, the two ends of the conductive rod are located on the upper side and the lower side of the moving plate respectively, the inside of the top box is symmetrically and transversely fixedly provided with guide rods, the moving plate is slidably connected with the guide rods, one side of the moving plate is fixedly provided with a return spring, and one end of the return spring is fixedly connected with the end inner wall of the top box.

[0011] Preferably, one end of the top box is provided with an air inlet groove, the other end of the top box is uniformly provided with air outlet holes, and the air inlet groove is located on the side of the moving plate away from the conductive rod.

[0012] Preferably, the heat dissipation protection assembly comprises a bellows which is fixedly installed at the end of the top box close to the air inlet groove, the air inlet groove is located inside the bellows, the end of the bellows away from the top box is fixedly provided with a fan, the end of the cylinder body close to the bellows is fixedly provided with an annular communication box, the annular communication box is located below the bellows, a connecting pipe is installed between the bellows and the annular communication box, the inside of the cylinder body is provided with heat dissipation grooves at equal angles, one end of the heat dissipation grooves is in communication with the inner cavity of the annular communication box, the inside of the cylinder body is provided with a communication groove, the communication groove is located inside the partition plate, and the other end of the heat dissipation grooves is in communication with the communication groove.

[0013] Preferably, the top end of the communication groove is provided with a top groove, the top end of the top groove penetrates to the inside of the top box, the two sides of the top groove are symmetrically provided with exhaust grooves, the exhaust grooves penetrate to the outside of the top box, the inside of the top groove movably installs a limiting block, the outer wall of the limiting block is close to the inner wall of the top groove, the inside of the limiting block is provided with an internal groove, the bottom end of the internal groove penetrates to the lower side of the limiting block, the two sides of the limiting block are uniformly provided with side holes, the side holes are below the exhaust grooves, the two sides of the limiting block are symmetrically provided with sliding grooves, the two sides of the limiting block are symmetrically provided with sliding blocks, the sliding blocks are slidably connected with the sliding grooves, the bottom end of the sliding block is fixedly provided with a supporting spring, and the bottom end of the supporting spring is fixedly connected with the inner bottom wall of the sliding groove.

[0014] Preferably, the inside of the top box is provided with a limiting baffle, the limiting baffle is arranged above the top groove, and the limiting baffle limits the limiting block, the side of the limiting baffle away from the fan is symmetrically provided with a fixed block, the fixed block is fixedly installed in the inside of the top box, the side of the limiting baffle close to the fixed block is symmetrically provided with a sliding rod, the sliding rod is slidably connected with the fixed block, a side spring is arranged between the limiting baffle and the fixed block, and the first lower terminal is located on the side of the limiting baffle away from the fan.

[0015] Preferably, the outside of the cylinder is provided with a solar energy storage device, and the top end of the top box is provided with a storage battery, the top box is used for converting solar energy into electric energy and storing the electric energy in the storage battery, and the storage battery is used for supplying power to the electric appliance.

[0016] Preferably, the monitoring system of the lightning stroke and leakage current on-line detection device of the lightning arrester supplied by solar energy comprises:

[0017] S1, weather detection: the fan is controlled through detection of the weather, the fan is started in thunderstorm weather, and the fan is stopped in other weather;

[0018] S2, leakage current detection: when in other weather, the fan is in a closed state, the position of the moving plate is unchanged, the leakage current detector and the second induction coil are connected to the detection circuit, the number of turns of the second induction coil is large, and the leakage current detector can detect the small leakage current in real time;

[0019] S3, lightning stroke current detection: when in thunderstorm weather, the fan is started, the moving plate is moved, the lightning stroke current detector and the first induction coil are connected to the detection circuit, the number of turns of the first induction coil is small, and the lightning stroke current detector can detect the large lightning stroke current in real time.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] (1) In the work, the movement of the mobile plate set completes lightning current detection and leakage current detection, when the leakage current detector and the second induction coil access the detection circuit, the second induction coil has more turns, which is convenient for inductive detection of smaller leakage current, when the lightning current detector and the first induction coil access the detection circuit, the first induction coil has fewer turns, which is convenient for inductive detection of larger lightning current, without the need to complete two detections through two systems, improving the detection efficiency;

[0022] (2) In the work, the fan is controlled by the weather control system, when the fan is turned on, the air pressure on the side close to the fan of the mobile plate increases, thereby pushing the mobile plate to move, so that the mobile plate moves to access the lightning current detector and the first induction coil to the detection circuit, when the fan is turned off, the leakage current detector and the second induction coil access the detection circuit, which is convenient for adjusting the detection object;

[0023] (3) In the work, the top of the limiting block is provided with a limiting baffle for limiting, so that when the fan is turned on, the air pressure acts on the surface of the mobile plate to push the mobile plate to move, when the mobile plate moves to the top of the groove away from the air inlet groove, the limiting block moves upward under the action of air pressure, so that the limiting baffle and the limiting block can limit the mobile plate, improving the power-on stability;

[0024] (4) After the top end of the limiting block disappears, the limiting block moves upward under the action of air pressure, so that the side hole on the limiting block corresponds to the exhaust groove, so that air can continuously circulate in the heat dissipation groove to cool and heat dissipate the equipment, avoiding that when the arrester corresponds to the large current generated by lightning, the equipment generates high temperature and affects the use. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application.

[0026] In the drawings:

[0027] Figure 1 It is a structure schematic view of the lightning and leakage current online detection device of the solar power arrester of the present application;

[0028] Figure 2 It is a structure schematic view of the current induction assembly of the present application;

[0029] Figure 3 It is a structure schematic view of the Figure 2 enlarged structure schematic view of A in the present application;

[0030] Figure 4 It is a structure schematic view of the communication groove of the present application;

[0031] Figure 5 The application is Figure 4 Amplification structure schematic diagram of B in the application;

[0032] Figure 6 Limiting block structure schematic diagram of the application;

[0033] Figure 7 Moving plate structure schematic diagram of the application;

[0034] Figure 8 Top box internal structure schematic diagram of the application;

[0035] Figure 9 Detection circuit diagram of the application.

[0036] In the figure: 1, barrel; 2, threading groove; 3, top box; 4, battery; 5, solar energy storage device; 7, lightning current detector; 8, electric leakage current detector; 9, current induction assembly; 901, end plate; 902, partition plate; 903, outer barrel; 904, first induction coil; 905, second induction coil; 906, first lower electrical connection terminal; 907, second lower electrical connection terminal; 10, moving electrical connection assembly; 1001, exhaust hole; 1002, air inlet groove; 1003, guide rod; 1004, moving plate; 1005, conductive rod; 1006, reset spring; 1007, first upper connection terminal; 1008, second upper connection terminal; 11, heat dissipation protection assembly; 1101, wind box; 1102, fan; 1103, annular communication box; 1104, connecting pipe; 1105, heat dissipation groove; 1106, communication groove; 1107, top groove; 1108, exhaust groove; 1109, sliding groove; 1111, internal groove; 1112, side hole; 1113, sliding block; 1114, supporting spring; 1115, limiting baffle; 1116, fixed block; 1117, sliding rod; 1118, side spring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0038] The application is Figures 1-9The application relates to a lightning stroke and leakage current on-line detection device of a solar power lightning arrester, which comprises a cylinder 1, a threading groove 2 is formed in the inner side of the cylinder 1, a current induction assembly 9 is arranged on the outer side of the cylinder 1, a solar power storage device 5 is arranged on the outer side of the cylinder 1, a battery 4 is arranged at the top end of a top box 3, the top box 3 is used for converting solar power into electric energy and storing the electric energy in the battery 4, and the battery 4 is used for supplying power to electric appliances.

[0039] The current induction assembly 9 comprises end plates 901 symmetrically arranged on the outer sides of the two ends of the cylinder 1, a partition plate 902 is fixedly arranged on the outer side of the cylinder 1 and located between the two end plates 901, an outer cylinder 903 is fixedly arranged between the two end plates 901, a wire harness mounting cavity is formed between the cylinder 1, the two end plates 901 and the outer cylinder 903, the wire harness mounting cavity is divided into two cavities by the partition plate 902, the two cavities are different in length, a first induction coil 904 is wound and arranged in the shorter cavity, a second induction coil 905 is wound and arranged in the longer cavity, the winding turns of the second induction coil 905 are greater than those of the first induction coil 904, a common terminal connecting terminal is arranged at one end of the cylinder 1, one end of the first induction coil 904 and one end of the second induction coil 905 are electrically connected with the common terminal connecting terminal, a first lower connecting terminal 906 and a second lower connecting terminal 907 are arranged at the top end of the outer cylinder 903, the second lower connecting terminal 907 is located on the side, away from the common terminal connecting terminal, of the first lower connecting terminal 906, the other end of the first induction coil 904 is electrically connected with the first lower connecting terminal 906, and the other end of the second induction coil 905 is electrically connected with the second lower connecting terminal 907.

[0040] The top end of the outer cylinder 903 is fixedly provided with the top box 3, the first lower connecting terminal 906 and the second lower connecting terminal 907 are located in the inner side of the top box 3, a mobile connecting assembly 10 is arranged in the inner side of the top box 3, a heat dissipation protection assembly 11 is arranged between the top box 3 and the cylinder 1, a lightning stroke current detector 7 is fixedly arranged at the top end of the top box 3, and a leakage current detector 8 is fixedly arranged at the top end of the top box 3.

[0041] The mobile power connection assembly 10 comprises a first upper connection terminal 1007 and a second upper connection terminal 1008 mounted on the top wall of the top box 3, the first upper connection terminal 1007 is located directly above the first lower power connection terminal 906, and the second upper connection terminal 1008 is located directly above the second lower power connection terminal 907, the two ends of the internal circuit of the lightning stroke current detector 7 are electrically connected with the common terminal and the first upper connection terminal 1007 respectively, the two ends of the internal circuit of the electric leakage current detector 8 are electrically connected with the common terminal and the second upper connection terminal 1008 respectively, the inside of the top box 3 is provided with a moving plate 1004, the inside of the moving plate 1004 is longitudinally provided with a conductive rod 1005, the two ends of the conductive rod 1005 are located on the upper and lower sides of the moving plate 1004 respectively, the inside of the top box 3 is symmetrically and transversely fixedly provided with a guide rod 1003, the moving plate 1004 is slidably connected with the guide rod 1003, one side of the moving plate 1004 is fixedly provided with a reset spring 1006, one end of the reset spring 1006 is fixedly connected with the end inner wall of the top box 3, one end of the top box 3 is provided with an air inlet groove 1002, the other end of the top box 3 is uniformly provided with air exhaust holes 1001, the air inlet groove 1002 is located on the side of the moving plate 1004 away from the conductive rod 1005, the moving of the moving plate 1004 can complete lightning stroke current detection and electric leakage current detection, when the electric leakage current detector 8 and the second induction coil 905 are connected to the detection circuit, the second induction coil 905 has more turns, so that the smaller electric leakage current can be inductively detected, when the lightning stroke current detector 7 and the first induction coil 904 are connected to the detection circuit, the first induction coil 904 has fewer turns, so that the larger lightning stroke current can be inductively detected, without the need to complete two detections through two systems, and the detection efficiency is improved.

[0042] The heat dissipation protection assembly 11 comprises a bellows 1101 fixedly installed at one end of the top box 3 close to the air inlet groove 1002, the air inlet groove 1002 is located on the inner side of the bellows 1101, the bellows 1101 is fixedly provided with a fan 1102 at the end away from the top box 3, the cylinder 1 is fixedly provided with an annular communication box 1103 at one end close to the bellows 1101, the annular communication box 1103 is located below the bellows 1101, a connecting pipe 1104 is installed between the bellows 1101 and the annular communication box 1103, the inside of the cylinder 1 is provided with heat dissipation grooves 1105 at equal angles, one end of the heat dissipation grooves 1105 is in communication with the inner cavity of the annular communication box 1103, the inside of the cylinder 1 is provided with a communication groove 1106, the communication groove 1106 is located on the inner side of the partition plate 902, and the other end of the heat dissipation grooves 1105 is in communication with the communication groove 1106.

[0043] The top end of the communication groove 1106 is provided with a top groove 1107, the top end of the top groove 1107 penetrates to the inside of the top box 3, the both sides of the top groove 1107 are symmetrically provided with exhaust grooves 1108, the exhaust grooves 1108 penetrate to the outside of the top box 3, the inside of the top groove 1107 movably installs a limiting block 1110, the top of the limiting block 1110 is provided with a limiting baffle 1115 for limiting, so that when the fan 1102 is opened, the air pressure acts on the surface of the moving plate 1004, the moving plate 1004 is pushed to move, when the moving plate 1004 moves to the side of the top groove 1107 away from the air inlet groove 1002, the limiting block 1110 moves up under the action of the air pressure, so that the limiting baffle 1115 and the limiting block 1110 can limit the moving plate 1004, and the power connection stability is improved.

[0044] The outer wall of the limiting block 1110 is close to the inner wall of the top groove 1107, the inside of the limiting block 1110 is provided with an internal groove 1111, the bottom end of the internal groove 1111 penetrates to the lower side of the limiting block 1110, the both sides of the limiting block 1110 are uniformly provided with side holes 1112, the side holes 1112 are located below the exhaust grooves 1108, the both sides of the top groove 1107 are symmetrically provided with sliding grooves 1109, the both sides of the limiting block 1110 are symmetrically installed with sliding blocks 1113, the sliding blocks 1113 are slidably connected with the sliding grooves 1109, the bottom end of the sliding block 1113 is fixedly installed with a supporting spring 1114, the bottom end of the supporting spring 1114 is fixedly connected with the inner bottom wall of the sliding groove 1109, the inside of the top box 3 is provided with a limiting baffle 1115, the limiting baffle 1115 is arranged above the top groove 1107, and the limiting baffle 1115 limits the limiting block 1110, the side of the limiting baffle 1115 away from the fan 1102 is symmetrically provided with a fixed block 1116, the fixed block 1116 is fixedly installed in the inside of the top box 3, the side of the limiting baffle 1115 close to the fixed block 1116 is symmetrically installed with a sliding rod 1117, the sliding rod 1117 is slidably connected with the fixed block 1116, a side spring 1118 is installed between the limiting baffle 1115 and the fixed block 1116, the first lower power connection terminal 906 is located on the side of the limiting baffle 1115 away from the fan 1102, after the top end of the limiting block 1110 is hindered, the limiting block 1110 moves upward under the action of the air pressure, so that the side hole 1112 on the limiting block 1110 corresponds to the exhaust groove 1108, so that the air can continuously circulate in the heat dissipation groove 1105, the equipment is cooled, and the use is not affected when the equipment generates high temperature under the large current generated by the lightning arrester corresponding to the lightning stroke.

[0045] Working principle: when working, the grounding wire of the lightning arrester is inserted through the threading groove 2 on the inner side of the cylinder 1, the solar energy storage device 5 converts solar energy into electric energy and stores it in the battery 4, which is used to power the various electrical appliances of the device. The current detection principle is: when the grounding wire flows through the current, an induced current is generated on the inductor. The size of the induced current is detected by the current detection device, and then the current flowing through the grounding wire is obtained. The lightning current is large, and the first inductor 904 with small number of turns and the lightning current detector 7 are needed to reduce the induced current to avoid damage to the detection device. The leakage current is small, and the second inductor 905 with large number of turns and the leakage current detector 8 are needed to increase the induced current to improve the detection sensitivity.

[0046] The device is connected with the weather control system, the weather control system controls the fan 1102, the weather control system knows the weather through the network, and divides the weather into thunderstorm weather and other weather. In other weather conditions, the fan 1102 is controlled to be in the closed state, and in thunderstorm weather, the fan 1102 is controlled to be in the open state.

[0047] When in other weather conditions, the fan 1102 is in the closed state, so that the position of the moving plate 1004 is in the original position. At this time, the two ends of the conductive rod 1005 are respectively in contact with the second upper connection terminal 1008 and the second lower connection terminal 907, so that the leakage current detector 8 and the second inductor 905 are connected to the detection circuit. Because the number of turns of the second inductor 905 is much larger than that of the first inductor 904, the induced current is more sensitive, so that when the lightning arrester leaks, there will be no detection error due to the small leakage current. The leakage current detector 8 detects the leakage under normal conditions.

[0048] In the case of thunderstorm weather, the weather control system controls the fan 1102 to open, so that the moving plate 1004 increases the air pressure on the side close to the air inlet groove 1002, and under the action of air pressure, pushes the moving plate 1004 to move towards the limiting baffle 1115 side, until the limiting baffle 1115 moves to the top groove 1107 away from the fan 1102 side after being pushed to move synchronously, at this time the top of the limiting block 1110 disappears, when the limiting baffle 1115 is in the limit position of movement, the two ends of the conductive rod 1005 on the moving plate 1004 are respectively in contact with the first upper terminal 1007 and the first lower terminal 1006, at this time the moving plate 1004 cannot continue to move, because the top end of the limiting block 1110 disappears, when the outside air enters, it can drive the air to enter into the inside groove 1111 through the connecting pipe 1104, the annular communication box 1103, the heat dissipation groove 1105 and the top groove 1107, push the limiting block 1110 to move upwards to the inside of the top box 3, so that the limiting block 1110 and the limiting baffle 1115 can limit and fix the moving plate 1004, ensure the stability of the power supply;

[0049] At the same time, the inside groove 1111 moves upwards, so that the side hole 1112 on the limiting block 1110 corresponds to the position of the exhaust groove 1108 on the side of the top groove 1107, so that the entering air can be discharged outward from the exhaust groove 1108, so that in the case of thunderstorm weather, the outside air can continuously pass through the inside of the cylinder 1, and the cylinder 1 is cooled and radiated, so as to avoid the high temperature of the equipment when the arrester corresponds to the large current generated by lightning stroke, which affects the use;

[0050] Because the two ends of the conductive rod 1005 on the moving plate 1004 are respectively in contact with the first upper terminal 1007 and the first lower terminal 1006, the lightning current detector 7 and the first induction coil 904 are connected to the detection circuit, because the number of turns of the first induction coil 904 is small, it is convenient to detect the larger current, and the lightning current detector 7 detects the size and frequency of lightning current in the thunderstorm process;

[0051] In the detection process, the lightning current detector 7 and the leakage current detector 8 are connected to the sensing system, and the sensing system is composed of the lightning current detector 7, the leakage current detector 8, the 4G intelligent gateway, the cloud server, the monitoring platform, the mobile phone APP and the like. The 4G intelligent gateway collects the data detected by the lightning current detector 7 and the leakage current detector 8 through the wireless module, and transmits the data to the server through the 4G module.

[0052] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0053] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solar-powered surge arrester online detection device for lightning strikes and leakage current, comprising a cylinder (1), characterized in that: The inner side of the cylinder (1) is provided with a wire groove (2), and the outer side of the cylinder (1) is provided with a current sensing component (9). The current sensing component (9) includes end plates (901) symmetrically installed on the outer sides of both ends of the cylinder (1). A partition plate (902) is fixedly installed on the outer side of the cylinder (1). The partition plate (902) is located between the two end plates (901). An outer cylinder (903) is fixedly installed between the two end plates (901). A wire harness mounting cavity is formed between the cylinder (1), the two end plates (901), and the outer cylinder (903). The partition plate (902) divides the wire harness mounting cavity into two cavities with different lengths. A first induction coil (904) is wound and installed inside the shorter cavity, and a second induction coil (905) is wound and installed inside the longer cavity. The number of turns of the second induction coil (905) is greater than the number of turns of the first induction coil (904). A common terminal is provided at one end of the cylinder (1). One end of the first induction coil (904) and one end of the second induction coil (905) are electrically connected to the common terminal. A first lower terminal (906) and a second lower terminal (907) are installed at the top of the outer cylinder (903). The second lower terminal (907) is located on the side of the first lower terminal (906) away from the common terminal. The other end of the first induction coil (904) is electrically connected to the first lower terminal (906), and the other end of the second induction coil (905) is electrically connected to the second lower terminal (907). A top box (3) is fixedly installed at the top of the outer cylinder (903). The first lower terminal (906) and the second lower terminal (907) are both located inside the top box (3). A movable power connection assembly (10) is provided inside the top box (3). A heat dissipation protection assembly (11) is provided between the top box (3) and the cylinder (1). A lightning current detector (7) is fixedly installed on the top of the top box (3), and a leakage current detector (8) is fixedly installed on the top of the top box (3). The movable power connection assembly (10) includes a first upper terminal (1007) and a second upper terminal (1008) installed on the inner top wall of the top box (3). The first upper terminal (1007) is located directly above the first lower terminal (906), and the second upper terminal (1008) is located directly above the second lower terminal (907). The two ends of the internal circuit of the lightning current detector (7) are electrically connected to the common terminal and the first upper terminal (1007) respectively. The two ends of the internal circuit of the leakage current detector (8) are electrically connected to the common terminal and the second upper terminal (1008) respectively.

2. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 1, characterized in that: The top box (3) is provided with a movable plate (1004) inside. A conductive rod (1005) is installed longitudinally inside the movable plate (1004). The two ends of the conductive rod (1005) are located on the upper and lower sides of the movable plate (1004) respectively. A guide rod (1003) is fixedly installed symmetrically in the interior of the top box (3). The movable plate (1004) is slidably connected to the guide rod (1003). A reset spring (1006) is fixedly installed on one side of the movable plate (1004). One end of the reset spring (1006) is fixedly connected to the inner wall of the end of the top box (3).

3. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 2, characterized in that: One end of the top box (3) is provided with an air inlet groove (1002), and the other end of the top box (3) is provided with exhaust holes (1001) evenly. The air inlet groove (1002) is located on the side of the moving plate (1004) away from the conductive rod (1005).

4. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 3, characterized in that: The heat dissipation protection assembly (11) includes a blower box (1101) fixedly installed on the top box (3) near the air inlet slot (1002). The air inlet slot (1002) is located inside the blower box (1101). A fan (1102) is fixedly installed on the end of the blower box (1101) away from the top box (3). An annular connecting box (1103) is fixedly installed on the end of the cylinder (1) near the blower box (1101). The annular connecting box (1103) is located below the blower box (1101). A connecting pipe (1104) is installed between the bellows (1101) and the annular connecting box (1103). A heat dissipation groove (1105) is opened at equal angles inside the cylinder (1). One end of the heat dissipation groove (1105) is connected to the inner cavity of the annular connecting box (1103). A connecting groove (1106) is opened inside the cylinder (1). The connecting groove (1106) is located inside the partition plate (902). The other end of the heat dissipation groove (1105) is connected to the connecting groove (1106).

5. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 4, characterized in that: The top of the connecting groove (1106) is provided with a top groove (1107), the top of the top groove (1107) extends into the interior of the top box (3), and exhaust grooves (1108) are symmetrically provided on both sides of the top groove (1107), extending into the outside of the top box (3). A limiting block (1110) is movably installed inside the top groove (1107), the outer wall of the limiting block (1110) is in close contact with the inner wall of the top groove (1107), and an inner groove (1111) is provided inside the limiting block (1110), the bottom end of the inner groove (1111) extending through... Below the limiting block (1110), side holes (1112) are evenly provided on both sides of the limiting block (1110). The side holes (1112) are located below the exhaust groove (1108). Slide grooves (1109) are symmetrically provided on both sides of the top groove (1107). Slider blocks (1113) are symmetrically installed on both sides of the limiting block (1110). The slider (1113) is slidably connected to the slide groove (1109). A support spring (1114) is fixedly installed at the bottom of the slider (1113). The bottom of the support spring (1114) is fixedly connected to the inner bottom wall of the slide groove (1109).

6. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 5, characterized in that: The top box (3) is provided with a limiting baffle (1115) inside. The limiting baffle (1115) is located above the top groove (1107) and limits the limiting block (1110). A fixing block (1116) is symmetrically arranged on the side of the limiting baffle (1115) away from the fan (1102). The fixing block (1116) is fixedly installed inside the top box (3). A sliding rod (1117) is symmetrically installed on the side of the limiting baffle (1115) close to the fixing block (1116). The sliding rod (1117) is slidably connected to the fixing block (1116). A side spring (1118) is installed between the limiting baffle (1115) and the fixing block (1116). The first lower electrical terminal (906) is located on the side of the limiting baffle (1115) away from the fan (1102).

7. The online detection device for lightning strike and leakage current of a solar-powered surge arrester according to claim 1, characterized in that: The outside of the cylinder (1) is equipped with a solar energy storage device (5), and the top of the top box (3) is equipped with a battery (4). The top box (3) is used to convert solar energy into electrical energy and store the computer inside the battery (4). The battery (4) is used to supply power to electrical appliances.

8. The monitoring system of the online detection device for lightning strike and leakage current of a solar-powered surge arrester according to any one of claims 1-7, characterized in that, The monitoring system includes: S1. Weather detection: By detecting the weather, the fan (1102) is controlled. The fan (1102) is turned on during thunderstorms and turned off during other weather. S2, Leakage current detection: When the weather is otherwise, the fan (1102) is in the off state, so that the position of the moving plate (1004) remains unchanged. The leakage current detector (8) and the second induction coil (905) are connected to the detection circuit. Since the second induction coil (905) has many turns, it can detect small leakage current in real time. S3, Lightning current detection: When there is a thunderstorm, the fan (1102) is turned on, which moves the moving plate (1004) and connects the lightning current detector (7) and the first induction coil (904) to the detection circuit. Since the first induction coil (904) has fewer turns, it can detect the large lightning current in real time.

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