Power distribution network fault automatic monitoring device
Through the vertical and horizontal movement and all-round scanning functions of the automatic monitoring device of the distribution network fault, the problems of monitoring blind spots and fire monitoring are solved, and the rapid positioning of distribution network faults and effective fire extinguishing are achieved, which improves the convenience of equipment operation and safety performance.
Patent Information
- Application Number
- CN202420944649.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The existing overhead line monitoring equipment in the distribution network is limited in monitoring range and has blind spots, which leads to difficult inspection, complex operation and waste of resources, and lacks real-time fire monitoring and fire extinguishing capabilities.
An automatic monitoring device for faults in the distribution network was designed, using the longitudinal and transverse screw modules on the support monitoring bracket to work together to realize the longitudinal and transverse movement of the cylindrical limit box, and is equipped with a lifting hydraulic push rod and a lifting angle drive machine. Detection and scanning cameras and sprinkler fire extinguishing systems, combining temperature sensors and smoke sensors to achieve all-round scanning and rapid fire extinguishing.
It improves the convenience and accuracy of equipment operation, enhances adaptability and flexibility, realizes rapid positioning of faults, rapid response to fires and effective fire extinguishing, and ensures the safe operation of equipment.
Smart Images
Figure CN222125369U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power distribution network monitoring, in particular to an automatic monitoring device for power distribution network faults. Background Art
[0002] The distribution network is a complex network composed of a series of facilities such as overhead lines, cables, towers, distribution transformers, disconnectors, and reactive power compensators. It plays a vital role in the distribution of electric energy in the power system. Among them, overhead lines, as an important part of the distribution network, mainly use insulators to fix the transmission wires to the towers on the ground to achieve the transmission of electric energy. Although its installation and maintenance are relatively convenient and low-cost, it also faces the risk of failure caused by meteorological and environmental factors (such as strong winds, lightning strikes, dirt, ice and snow, etc.). At the same time, since the entire transmission corridor occupies a large area, it may also cause electromagnetic interference to the surrounding environment.
[0003] The main components of overhead lines include conductors and lightning arresters (overhead ground wires), poles, insulators, hardware, pole foundations, guy wires and grounding devices. However, in the existing technical field, since overhead lines often extend for several kilometers or even dozens of kilometers, once a fault such as a broken line or collapsed power pole occurs, manual troubleshooting becomes extremely cumbersome. For this reason, the application of monitoring equipment becomes crucial, as they can quickly locate the fault location and facilitate timely repairs by staff.
[0004] However, the use of real-time monitoring equipment for overhead lines in distribution networks still faces some challenges. These devices are usually fixed directly on the top of the tower, but due to the limited monitoring range of a single device, there is often a monitoring blind spot at the top of the tower directly below it. In order to eliminate these blind spots, it is usually necessary to install multiple monitoring devices to cover different angles, which not only increases the difficulty of troubleshooting for staff, but also makes the operation complicated, time-consuming and labor-intensive, and also causes unnecessary waste of resources. In view of this, in-depth research on the above issues led to the creation of this case. Utility Model Content
[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a distribution network fault automatic monitoring device, comprising: a plurality of distribution cabinets, a plurality of distribution cabinets are respectively equipped with monitoring structures and a plurality of distribution automation scanning and processing structures on the inner sides;
[0006] The distribution automation scanning processing structure includes: a support monitoring bracket, a pair of longitudinal screw modules, a circular longitudinal moving block, a pair of transverse screw modules, a cylindrical limit box, an I-shaped cylindrical lifting block, a lifting hydraulic push rod, a lifting angle driver, a lifting angle gear, a pair of scanning telescopic concave slides, a pair of scanning telescopic convex slides, a telescopic detection block, a horizontal telescopic adjustment hydraulic push rod, a detection scanning camera, a spray L-shaped pipe, a spray nozzle, a chemical fire extinguishing box, a drainage pump and a drainage spray pipe;
[0007] The supporting monitoring bracket is installed on several of the power distribution cabinets, a pair of the longitudinal screw modules are installed in parallel on the supporting monitoring bracket, the circular longitudinal moving block is installed on the moving ends of a pair of the longitudinal screw modules, a pair of the transverse screw modules are relatively installed in parallel on the circular longitudinal moving block, the cylindrical limit box is installed on the moving ends of a pair of the transverse screw modules, the I-shaped cylindrical lifting block is movably inserted on the inner side of the cylindrical limit box, the lifting hydraulic push rod is installed on the inner side of the cylindrical limit box, and the pushing end of the lifting hydraulic push rod is inserted on the I-shaped cylindrical lifting block through a bearing, a gear groove is provided on the I-shaped cylindrical lifting block, the lifting angle driving machine is installed on the inner side of the cylindrical limit box, and the lifting angle gear is installed on the driving end of the lifting angle driving machine On, and the lifting angle gear is meshed with the gear groove, a pair of the scanning telescopic concave slides are inserted on the cylindrical limit box, a pair of the scanning telescopic convex sliding blocks are respectively movably inserted on the inner sides of a pair of the scanning telescopic concave slides, the telescopic detection block is installed on a pair of the scanning telescopic convex sliding blocks, the horizontal telescopic adjustment hydraulic push rod is connected to the cylindrical limit box and the telescopic detection block, the detection scanning camera is installed on the telescopic detection block, the spray L-shaped pipe is inserted on the telescopic detection block, the spray nozzle is installed on the spray L-shaped pipe, the chemical fire extinguishing box is installed on the cylindrical limit box, the drainage pump is installed on the chemical fire extinguishing box, the drainage spray pipe is installed on the drainage pump, and the drainage spray pipe is connected to the spray L-shaped pipe;
[0008] It should be noted that in the above, a pair of longitudinal screw modules on the supporting monitoring bracket are operated to drive the circular longitudinal moving block thereon to move longitudinally, and at the same time, a pair of transverse screw modules inside the circular longitudinal moving block are operated to drive the cylindrical limit box on the moving end to move transversely, thereby achieving the longitudinal and transverse movement of the cylindrical limit box, and the lifting hydraulic push rod inside the cylindrical limit box is extended and retracted to drive the I-shaped cylindrical lifting block on the pushing end of the lifting hydraulic push rod to be stably lifted and lowered. At the same time, the lifting angle driving machine inside the cylindrical limit box is operated to drive the lifting angle gear on the driving end of the lifting angle driving machine to rotate, and the lifting angle gear drives the gear groove on the I-shaped cylindrical lifting block meshing with the gear, so that the I-shaped cylindrical lifting block rotates on the inner side of the cylindrical limit box, and the lifting hydraulic push rod is used to lift the I-shaped cylindrical lifting block. The cooperation of the bearings on the push end of the rod can achieve stable lifting and lowering and temperature horizontal rotation. At the same time, the horizontal telescopic adjustment hydraulic push rod is extended and retracted, which drives a pair of scanning telescopic convex sliders on the telescopic detection block on the push end of the horizontal telescopic adjustment hydraulic push rod. A pair of scanning telescopic convex sliders are respectively extended and retracted stably horizontally along the inner side of a pair of scanning telescopic concave slides, so that the telescopic detection block is stably extended and retracted horizontally. At the same time, the telescopic detection block drives the spray L-shaped tube and the detection scanning camera on it, and scans several distribution cabinets through the detection scanning camera. At the same time, the chemical fire extinguishing liquid on the inside of the chemical fire extinguishing box is drained to the inside of the drainage spray pipe through the drainage spray pipe, and then drained to the inside of the spray L-shaped tube through the drainage spray pipe. The distribution cabinet is sprayed and extinguished through the spray nozzle on the spray L-shaped tube.
[0009] Preferably, the monitoring structure comprises: a temperature sensor, a smoke sensor, a T-shaped expansion tube, a pair of round-shaped limit blocks, a convex expansion block, a plurality of expansion limit shafts, a plurality of expansion sleeve springs, a round-shaped expansion electromagnet, a round-shaped expansion magnet, an expansion insertion nail and a pair of expansion bags;
[0010] The temperature sensor and the smoke sensor are installed on the inner side of the power distribution cabinet, the T-shaped expansion tube is installed on the inner side of the power distribution cabinet, a pair of the return limit blocks are installed on the inner side of the T-shaped expansion tube, the convex expansion block is movably inserted on the inner side of the pair of return limit blocks, a number of expansion limit shafts are respectively inserted on a pair of return limit blocks, and a number of expansion limit shafts are movably inserted on the convex expansion block, a number of expansion sleeve springs are respectively sleeved on a number of expansion limit shafts, the return expansion electromagnet is installed on the return limit block, the return expansion magnet is installed on the convex expansion block, the expansion insert nail is installed on the convex expansion block, and a pair of expansion bags are installed on the inner side of the T-shaped expansion tube;
[0011] It should be noted that, in the above, through the monitoring of the temperature sensor and the smoke sensor on the inner side of the distribution cabinet, the circular expansion electromagnet on the circular limit block of the T-shaped expansion tube is energized, the circular expansion electromagnet is used to magnetically repel the circular expansion magnet, and the convex expansion block on it is driven by the circular expansion magnet, so that the convex expansion block is stably lifted and lowered on the inner side of a pair of circular limit blocks, and the convex expansion block is vertically lifted and lowered by a number of expansion limit shafts, and the convex expansion block drives the expansion plug-in nail thereon, and the expansion plug-in nail drives a pair of expansion bags thereon, so as to produce fire extinguishing gas by chemical reaction, thereby achieving the effect of fire extinguishing and flame retardant.
[0012] Preferably, a ram pump is provided on the chemical fire extinguishing box.
[0013] Preferably, a circuit breaker is respectively provided on a plurality of the power distribution cabinets.
[0014] Preferably, a plurality of the T-shaped expansion tubes are located at inner air holes of a plurality of the power distribution cabinets.
[0015] Preferably, the drainage spray pipe is a rubber hose.
[0016] Beneficial Effects
[0017] The utility model provides an automatic monitoring device for distribution network faults. It has the following beneficial effects: the automatic monitoring device for distribution network faults realizes the longitudinal and transverse movement of the cylindrical limit box by supporting the coordinated work of the longitudinal and transverse lead screw modules on the monitoring bracket, and this flexible movement mode greatly improves the convenience and accuracy of the equipment operation; at the same time, the coordinated use of the lifting hydraulic push rod and the lifting angle driver ensures the stable lifting and horizontal rotation of the I-shaped cylindrical lifting block, providing a stable platform for subsequent scanning and fire extinguishing operations; the telescopic function of the horizontal telescopic adjustment hydraulic push rod enables the telescopic detection block to stably perform horizontal telescopic, further enhancing the adaptability and flexibility of the equipment; the combined use of the spray L-shaped tube and the detection scanning camera not only realizes the all-round scanning of the distribution cabinet, but also can quickly spray and extinguish the fire when the fire hazard is found, greatly improving the safety performance; in addition, through the real-time monitoring of the temperature sensor and the smoke sensor on the inner side of the distribution cabinet, combined with the linkage mechanism of the round-shaped expansion electromagnet and the convex expansion block on the T-shaped expansion tube round-shaped limit block, it can quickly generate fire extinguishing gas when a fire occurs, and achieve the effect of rapid fire extinguishing and flame retardancy. This intelligent fire-fighting method not only responds quickly, but also has significant fire-fighting effects, effectively ensuring the safe operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a front view and cross-sectional schematic diagram of a distribution network fault automatic monitoring device described in the utility model.
[0019] Figure 2 for Figure 1 A partial enlarged view of "A".
[0020] Figure 3 for Figure 1 A partial enlarged view of "B".
[0021] In the figure: 1. Power distribution cabinet; 2. Support monitoring bracket; 3. Longitudinal screw module; 4. Round longitudinal moving block; 5. Horizontal screw module; 6. Cylindrical limit box; 7. I-shaped cylindrical lifting block; 8. Lifting hydraulic push rod; 9. Lifting angle driver; 10. Lifting angle gear; 11. Scanning telescopic concave slide; 12. Scanning telescopic convex slide; 13. Telescopic detection block; 14. Horizontal telescopic adjustment hydraulic push rod; 15. Spray L-type pipe; 16. Spray nozzle; 17. Chemical fire extinguishing box; 18. Drainage pump; 19. T-type expansion pipe; 20. Round limit block; 21. Convex expansion block; 22. Expansion limit shaft; 23. Expansion set spring; 24. Round expansion electromagnet; 25. Round expansion magnet; 26. Expansion insert nail; 27. Expansion bag. DETAILED DESCRIPTION
[0022] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.
[0023] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.
[0024] Example
[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-3As shown, a monitoring structure and a plurality of distribution automation scanning and processing structures are respectively installed on the inner sides of the several distribution cabinets 1; the distribution automation scanning and processing structure comprises: a support monitoring bracket 2, a pair of longitudinal screw modules 3, a circular longitudinal moving block 4, a pair of transverse screw modules 5, a cylindrical limit box 6, an I-shaped cylindrical lifting block 7, a lifting hydraulic push rod 8, a lifting angle drive machine 9, a lifting angle gear 10, a pair of scanning telescopic concave slides 11, a pair of scanning telescopic convex slides 12, a telescopic detection block 13, a horizontal telescopic adjustment hydraulic push rod 14, a detection scanning camera, a spray L-shaped pipe 15, a spray nozzle 16, a chemical fire extinguishing box 17, a drainage pump 18 and a drainage spray pipe; the support monitoring The monitoring bracket 2 is installed on several of the power distribution cabinets 1, a pair of the longitudinal screw modules 3 are installed in parallel on the supporting monitoring bracket 2, the circular longitudinal moving block 4 is installed on the moving ends of the pair of longitudinal screw modules 3, a pair of the transverse screw modules 5 are relatively parallel installed on the circular longitudinal moving block 4, the cylindrical limit box 6 is installed on the moving ends of the pair of transverse screw modules 5, the I-shaped cylindrical lifting block 7 is movably inserted on the inner side of the cylindrical limit box 6, the lifting hydraulic push rod 8 is installed on the inner side of the cylindrical limit box 6, and the pushing end of the lifting hydraulic push rod 8 is inserted on the I-shaped cylindrical lifting block 7 through a bearing, and a gear groove is provided on the I-shaped cylindrical lifting block 7 The lifting angle driving machine 9 is installed on the inner side of the cylindrical limit box 6, the lifting angle gear 10 is installed on the driving end of the lifting angle driving machine 9, and the lifting angle gear 10 is meshed with the gear groove, a pair of scanning telescopic concave slides 11 are inserted on the cylindrical limit box 6, a pair of scanning telescopic convex sliders 12 are respectively movably inserted on the inner sides of a pair of scanning telescopic concave slides 11, the telescopic detection block 13 is installed on a pair of scanning telescopic convex sliders 12, the horizontal telescopic adjustment hydraulic push rod 14 is connected to the cylindrical limit box 6 and the telescopic detection block, the detection scanning camera is installed on the telescopic detection block 13, the The spray L-shaped tube 15 is inserted on the telescopic detection block 13, the spray nozzle 16 is installed on the spray L-shaped tube 15, the chemical fire extinguishing box 17 is installed on the cylindrical limit box 6, the drainage pump 18 is installed on the chemical fire extinguishing box 17, the drainage spray pipe is installed on the drainage pump 18, and the drainage spray pipe is connected to the spray L-shaped tube 15; the monitoring structure includes: a temperature sensor, a smoke sensor, a T-shaped expansion tube 19, a pair of round-shaped limit blocks 20, a convex expansion block 21, a plurality of expansion limit shafts 22, a plurality of expansion set springs 23, a round-shaped expansion electromagnet 24, a round-shaped expansion magnet 25, an expansion insertion nail 26 and a pair of expansion bags 27;The temperature sensor and the smoke sensor are installed on the inner side of the power distribution cabinet 1, the T-shaped expansion tube 19 is installed on the inner side of the power distribution cabinet 1, a pair of the return limit blocks 20 are installed on the inner side of the T-shaped expansion tube 19, the convex expansion block 21 is movably inserted on the inner side of the pair of return limit blocks 20, a plurality of the expansion limit shafts 22 are respectively inserted on the pair of return limit blocks 20, and a plurality of the expansion limit shafts 22 are movably inserted on the convex expansion block 21, and a plurality of the expansion sleeve springs 23 are respectively sleeved on a plurality of The expansion limit shaft 22 is mounted on the circular expansion electromagnet 24, the circular expansion magnet 25 is mounted on the convex expansion block 21, the expansion insert nail 26 is mounted on the convex expansion block 21, and a pair of expansion bags 27 are mounted on the inner side of the T-shaped expansion tube 19; the chemical fire extinguishing box 17 is provided with a punching pump; several of the distribution cabinets 1 are respectively provided with circuit breakers; several of the T-shaped expansion tubes 19 are located at the inner vent holes of several of the distribution cabinets 1; the drainage spray pipe is a rubber hose. ;
[0026] According to the attached Figure 1-3It is concluded that by operating a pair of longitudinal lead screw modules 3 on the supporting monitoring bracket 2, the circular longitudinal moving block 4 on it is driven to move longitudinally, and at the same time, by operating a pair of transverse lead screw modules 5 inside the circular longitudinal moving block 4, the cylindrical limit box 6 on the moving end is driven to move transversely, so as to achieve the longitudinal and transverse movement of the cylindrical limit box 6, and the lifting hydraulic push rod 8 inside the cylindrical limit box 6 is extended and retracted to drive the lifting hydraulic push rod 8 to push the I-shaped cylindrical lifting block 7 on the end to be stably lifted and lowered, and at the same time, the lifting angle driving machine 9 inside the cylindrical limit box 6 is driven to drive the lifting angle driving machine 9 on the driving end. The angle gear 10 rotates, and the gear groove on the I-shaped cylindrical lifting block 7 meshing with the gear is driven by the lifting angle gear 10, so that the I-shaped cylindrical lifting block 7 rotates on the inner side of the cylindrical limit box 6, and the lifting hydraulic push rod 8 pushes the end of the bearing to achieve stable lifting and temperature horizontal rotation. At the same time, the horizontal telescopic adjustment hydraulic push rod 14 is extended and retracted to drive a pair of scanning telescopic convex sliders 12 on the telescopic detection block 13 on the push end of the horizontal telescopic adjustment hydraulic push rod 14, and the pair of scanning telescopic convex sliders 12 are respectively stably extended and retracted horizontally along the inner side of a pair of scanning telescopic concave slides 11 , so that the telescopic detection block 13 is stably telescoped horizontally, and at the same time, the telescopic detection block 13 drives the spray L-shaped tube 15 and the detection scanning camera on it, and scans several distribution cabinets 1 through the detection scanning camera, and at the same time, the chemical fire extinguishing liquid inside the chemical fire extinguishing box 17 is drained to the inside of the drainage spray pipe through the drainage spray pipe, and then drained to the inside of the spray L-shaped tube 15 through the drainage spray pipe, and the distribution cabinet 1 is sprayed and extinguished by the spray nozzle 16 on the spray L-shaped tube 15; at the same time, through the monitoring of the temperature sensor and the smoke sensor inside the distribution cabinet 1, the T-shaped expansion tube 1 The circular expansion electromagnet 24 on the circular limit block 20 is energized, and the circular expansion electromagnet 24 magnetically repels the circular expansion magnet 25, and the circular expansion magnet 25 drives the convex expansion block 21 thereon, so that the convex expansion block 21 is stably lifted and lowered on the inner side of a pair of circular limit blocks 20, and at the same time, the convex expansion block 21 is vertically lifted and lowered by a plurality of expansion limit shafts 22, and at the same time, the convex expansion block 21 drives the expansion plug nail 26 thereon, and the expansion plug nail 26 drives a pair of expansion bags 27 thereon, so as to produce fire extinguishing gas through chemical reaction, thereby achieving the effect of fire extinguishing and flame retardant.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A distribution network fault automatic monitoring device, include: Several power distribution cabinets, characterized in that monitoring structures and several power distribution automation scanning and processing structures are respectively installed on the inner sides of the several power distribution cabinets; The distribution automation scanning processing structure includes: a support monitoring bracket, a pair of longitudinal screw modules, a circular longitudinal moving block, a pair of transverse screw modules, a cylindrical limit box, an I-shaped cylindrical lifting block, a lifting hydraulic push rod, a lifting angle driver, a lifting angle gear, a pair of scanning telescopic concave slides, a pair of scanning telescopic convex slides, a telescopic detection block, a horizontal telescopic adjustment hydraulic push rod, a detection scanning camera, a spray L-shaped pipe, a spray nozzle, a chemical fire extinguishing box, a drainage pump and a drainage spray pipe; The supporting monitoring bracket is installed on several of the power distribution cabinets, a pair of the longitudinal screw modules are installed in parallel on the supporting monitoring bracket, the circular longitudinal moving block is installed on the moving ends of a pair of the longitudinal screw modules, a pair of the transverse screw modules are relatively installed in parallel on the circular longitudinal moving block, the cylindrical limit box is installed on the moving ends of a pair of the transverse screw modules, the I-shaped cylindrical lifting block is movably inserted on the inner side of the cylindrical limit box, the lifting hydraulic push rod is installed on the inner side of the cylindrical limit box, and the pushing end of the lifting hydraulic push rod is inserted on the I-shaped cylindrical lifting block through a bearing, a gear groove is provided on the I-shaped cylindrical lifting block, the lifting angle driving machine is installed on the inner side of the cylindrical limit box, and the lifting angle gear is installed on the driving end of the lifting angle driving machine On, and the lifting angle gear is meshed with the gear groove, a pair of the scanning telescopic concave slides are inserted on the cylindrical limit box, a pair of the scanning telescopic convex sliding blocks are respectively movably inserted on the inner sides of a pair of the scanning telescopic concave slides, the telescopic detection block is installed on a pair of the scanning telescopic convex sliding blocks, the horizontal telescopic adjustment hydraulic push rod is connected to the cylindrical limit box and the telescopic detection block, the detection scanning camera is installed on the telescopic detection block, the spray L-shaped pipe is inserted on the telescopic detection block, the spray nozzle is installed on the spray L-shaped pipe, the chemical fire extinguishing box is installed on the cylindrical limit box, the drainage pump is installed on the chemical fire extinguishing box, the drainage spray pipe is installed on the drainage pump, and the drainage spray pipe is connected to the spray L-shaped pipe.
2. A distribution network fault automatic monitoring device according to claim 1, It is characterized in that The monitoring structure includes: a temperature sensor, a smoke sensor, a T-shaped expansion tube, a pair of round-shaped limit blocks, a convex expansion block, a plurality of expansion limit shafts, a plurality of expansion sleeve springs, a round-shaped expansion electromagnet, a round-shaped expansion magnet, an expansion insert nail and a pair of expansion bags; The temperature sensor and the smoke sensor are installed on the inner side of the distribution cabinet, the T-shaped expansion tube is installed on the inner side of the distribution cabinet, a pair of the return limit blocks are installed on the inner side of the T-shaped expansion tube, the convex expansion block is movably inserted on the inner side of the pair of return limit blocks, a number of expansion limit shafts are respectively inserted on a pair of the return limit blocks, and a number of the expansion limit shafts are movably inserted on the convex expansion block, a number of the expansion sleeve springs are respectively sleeved on a number of the expansion limit shafts, the return expansion electromagnet is installed on the return limit block, the return expansion magnet is installed on the convex expansion block, the expansion insertion nail is installed on the convex expansion block, and a pair of expansion bags are installed on the inner side of the T-shaped expansion tube.
3. A distribution network fault automatic monitoring device according to claim 2, It is characterized in that The chemical fire extinguishing box is provided with a stamping pump.
4. A distribution network fault automatic monitoring device according to claim 3, It is characterized in that Several of the power distribution cabinets are respectively provided with circuit breakers.
5. A distribution network fault automatic monitoring device according to claim 4, It is characterized in that A plurality of the T-shaped expansion tubes are located at the inner air holes of a plurality of the power distribution cabinets.
6. A distribution network fault automatic monitoring device according to claim 5, It is characterized in that The drainage spray pipe is a rubber hose.