Power transmission line fault positioning operation and maintenance equipment

By designing a fault location device that includes a base, an arc plate, and a voltage sensor, the problem of difficulty in detecting minor faults through manual inspection is solved, enabling rapid and accurate fault location and improving the efficiency of power transmission line operation and maintenance.

CN224247843UActive Publication Date: 2026-05-15POWERCHINA JIANGXI ELECTRIC POWER ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA JIANGXI ELECTRIC POWER ENGINEERING CO LTD
Filing Date
2025-04-01
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing fault location equipment for transmission lines relies on manual inspection, making it difficult to detect minor line faults such as slight broken strands in conductors and tiny cracks on the surface of insulators.

Method used

A fault location maintenance device was designed, comprising a base, an arc plate, rollers, a threaded rod, a connecting plate, and a voltage sensor. The device automatically indicates the fault location by sliding the rollers and detecting changes in line current using the voltage sensor.

Benefits of technology

It enables rapid and accurate location of transmission line faults, improves the efficiency and accuracy of fault detection, and reduces the limitations of manual inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of operation and maintenance equipment, and discloses power transmission line fault positioning operation and maintenance equipment, which comprises a base. According to the power transmission line fault positioning operation and maintenance equipment, through arrangement of a first roller, a threaded rod, a connecting plate, a second roller, a first mounting plate, a second mounting plate and a bolt, when a worker checks a line, an electric wire is firstly placed on the surface of the first roller, and then a second arc-shaped plate is rotated; a first mounting plate is in contact with a second mounting plate, a first arc-shaped plate and a second arc-shaped plate are fixed by rotating a bolt, then a threaded rod is rotated to drive a connecting plate to move, a second roller is in contact with a wire, and then the device can slide on the wire through a first roller and a second roller. After the voltage sensor is in the fault position in the moving process, the current sensor sends a signal to the alarm lamp to indicate the fault, and the maintenance personnel are helped to quickly find the fault section.
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Description

Technical Field

[0001] This utility model relates to the field of operation and maintenance equipment technology, and in particular to operation and maintenance equipment for locating faults in power transmission lines. Background Technology

[0002] In power systems, transmission lines are crucial for efficiently transmitting electricity generated by power plants to various consumer areas. However, due to their wide distribution and the complex natural environment and operating conditions they face, transmission lines are prone to various faults. When a fault occurs in the reverse direction of the transmission line, traditional fault location methods often face numerous challenges, making it difficult to quickly and accurately pinpoint the fault location. Therefore, specialized maintenance equipment for locating faults in the reverse direction of transmission lines has emerged. It is of paramount importance for ensuring the stable operation of the power system, minimizing power outage time, and reducing economic losses.

[0003] However, existing transmission line fault location and maintenance equipment has the following drawbacks:

[0004] Currently, staff are searching for the faulty line. Manual inspection mainly relies on the visual observation and experience judgment of the inspectors. However, human visual observation has limitations. For some minor line faults, such as slight broken strands in the conductor or tiny cracks on the surface of the insulator, it may be difficult to detect.

[0005] Therefore, this utility model provides a fault location and maintenance device for power transmission lines. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] The technical problem solved by the utility model is to provide a transmission line fault location and maintenance device that is highly practical, easy to operate, and has a simple structure. This solves the problem mentioned in the background art that manual inspection may be difficult to detect some minor line faults, such as minor broken strands in conductors or tiny cracks on the surface of insulators.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a transmission line fault location and maintenance device, comprising a base, a first arc-shaped plate fixedly connected to the top of the base, a first roller provided on one side of the first arc-shaped plate, a first mounting plate fixedly connected to one side of the first arc-shaped plate, a second arc-shaped plate rotatably connected to the other side of the first arc-shaped plate, a threaded rod threaded through one side of the second arc-shaped plate, a connecting plate rotatably connected to one end of the threaded rod, a second roller mounted on one side of the connecting plate, a second mounting plate fixedly connected to the surface of the second arc-shaped plate, a bolt threaded into the surface of the first mounting plate movably passing through the surface of the second mounting plate, and a voltage sensor mounted on one side of the first arc-shaped plate.

[0010] Optionally, a fixing plate is fixedly connected to the bottom of the base, an installation plate is installed on the bottom of the fixing plate, and an alarm light is installed on the bottom of the installation plate. The alarm light and the voltage sensor are electrically connected to facilitate reporting to staff.

[0011] Optionally, a limiting rod is fixedly connected to one side of the connecting plate, and the limiting rod movably passes through the surface of the second arc-shaped plate, making the connecting plate more stable when moving.

[0012] Optionally, one end of the limiting rod is fixedly connected to an anti-detachment block, which is circular in shape to prevent the connecting plate from detaching.

[0013] Optionally, a turntable is fixedly connected to the other end of the threaded rod. The turntable is circular to facilitate the rotation of the threaded rod.

[0014] Optionally, the surface of the turntable is provided with anti-slip texture, which is arranged in a circle to prevent the operator's hand from slipping when rotating the turntable.

[0015] (III) Beneficial Effects

[0016] This utility model provides a fault location and maintenance device for power transmission lines, which has the following beneficial effects:

[0017] 1. This power transmission line fault location and maintenance equipment, through the arrangement of a first roller, threaded rod, connecting plate, second roller, first mounting plate, second mounting plate, and bolts, allows workers to first place the wire on the surface of the first roller when inspecting the line. Then, they rotate the second arc-shaped plate to bring the first and second mounting plates into contact. Simultaneously, they rotate the bolts to fix the first and second arc-shaped plates together. Then, they rotate the threaded rod to move the connecting plate, bringing the second roller into contact with the wire. The device can then slide along the line using the first and second rollers. Once the voltage sensor locates the fault during the movement, the current sensor sends a signal to the alarm light, indicating the fault and helping maintenance personnel quickly locate the faulty section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the fixed disk structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the turntable structure of this utility model.

[0022] In the diagram: 1. Base; 2. First arc-shaped plate; 3. First roller; 4. First mounting plate; 5. Second arc-shaped plate; 6. Threaded rod; 7. Connecting plate; 8. Second roller; 9. Second mounting plate; 10. Bolt; 11. Fixing plate; 12. Mounting plate; 13. Warning light; 14. Limiting rod; 15. Anti-detachment block; 16. Turntable. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4This utility model provides a technical solution: a transmission line fault location and maintenance device, including a base 1, a first arc-shaped plate 2 fixedly connected to the top of the base 1, a first roller 3 provided on one side of the first arc-shaped plate 2, a first mounting plate 4 fixedly connected to one side of the first arc-shaped plate 2, a second arc-shaped plate 5 rotatably connected to the other side of the first arc-shaped plate 2, a threaded rod 6 threaded through one side of the second arc-shaped plate 5, a connecting plate 7 rotatably connected to one end of the threaded rod 6, a second roller 8 installed on one side of the connecting plate 7, a second mounting plate 9 fixedly connected to the surface of the second arc-shaped plate 5, a bolt 10 threadedly inserted into the surface of the first mounting plate 4 movably passing through the surface of the second mounting plate 9, and a voltage sensor installed on one side of the first arc-shaped plate 2. The device is connected via the first roller 3, threaded rod 6, connecting plate 7, second roller 8, first mounting plate 4, and second mounting plate 4. The mounting plate 9 and bolt 10 allow the operator to first place the wire on the surface of the first roller 3 when inspecting the line. Then, rotate the second arc plate 5 to bring the first mounting plate 4 and the second mounting plate 9 into contact. Simultaneously, rotate the bolt 10 to fix the first arc plate 2 and the second arc plate 5 together. Then, rotate the threaded rod 6 to move the connecting plate 7, so that the second roller 8 comes into contact with the wire. The device can then slide along the line using the first roller 3 and the second roller 8. Once the voltage sensor locates the fault position during the movement (the voltage sensor model is EKL3; when there is a line fault, the current at the fault position will increase instantaneously, which can be detected by this voltage sensor), the current sensor sends a signal to the alarm light 13 to indicate the fault and help maintenance personnel quickly find the faulty section.

[0025] A fixing plate 11 is fixedly connected to the bottom of the base 1. A mounting plate 12 is installed on the bottom of the fixing plate 11. An alarm light 13 is installed on the bottom of the mounting plate 12. The alarm light 13 facilitates reporting to staff. The alarm light 13 and the voltage sensor are electrically connected.

[0026] A limiting rod 14 is fixedly connected to one side of the connecting plate 7. The limiting rod 14 makes the connecting plate 7 more stable when moving. The limiting rod 14 moves through the surface of the second arc-shaped plate 5.

[0027] One end of the limiting rod 14 is fixedly connected to an anti-detachment block 15. The anti-detachment block 15 is set to prevent the connecting plate 7 from detaching. The anti-detachment block 15 is circular.

[0028] The other end of the threaded rod 6 is fixedly connected to a turntable 16. The turntable 16 is circular and facilitates the rotation of the threaded rod 6.

[0029] The surface of the turntable 16 is provided with anti-slip texture. The anti-slip texture is designed to prevent the operator from slipping their hand when turning the turntable 16. The anti-slip texture is arranged in a circle.

[0030] In this invention, the working steps of the device are as follows:

[0031] First step: When inspecting the line, the staff first places the wire on the surface of the first roller 3, then rotates the second arc plate 5 so that the first mounting plate 4 and the second mounting plate 9 come into contact. Then, rotate the bolt 10 to fix the first arc plate 2 and the second arc plate 5 together. Then, rotate the threaded rod 6 to move the connecting plate 7 so that the second roller 8 comes into contact with the wire. Then, the device can be slid on the line by the first roller 3 and the second roller 8. After the voltage sensor finds the fault location during the movement, the current sensor sends a signal to the alarm light 13 to indicate that the fault has occurred, helping the maintenance personnel to quickly find the faulty section.

[0032] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0033] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fault location and maintenance device for transmission lines, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a first arc plate (2), a first roller (3) is provided on one side of the first arc plate (2), a first mounting plate (4) is fixedly connected to one side of the first arc plate (2), a second arc plate (5) is rotatably connected to the other side of the first arc plate (2), a threaded rod (6) is threaded through one side of the second arc plate (5), a connecting plate (7) is rotatably connected to one end of the threaded rod (6), a second roller (8) is installed on one side of the connecting plate (7), a second mounting plate (9) is fixedly connected to the surface of the second arc plate (5), a bolt (10) threaded into the surface of the first mounting plate (4) is movably inserted through the surface of the second mounting plate (9), and a voltage sensor is installed on one side of the first arc plate (2).

2. The transmission line fault location and maintenance equipment according to claim 1, characterized in that: The base (1) is fixedly connected to a fixing plate (11), and a mounting plate (12) is installed on the bottom of the fixing plate (11). An alarm light (13) is installed on the bottom of the mounting plate (12), and the alarm light (13) and the voltage sensor are electrically connected.

3. The transmission line fault location and maintenance equipment according to claim 1, characterized in that: A limiting rod (14) is fixedly connected to one side of the connecting plate (7), and the limiting rod (14) moves through the surface of the second arc-shaped plate (5).

4. The transmission line fault location and maintenance equipment according to claim 3, characterized in that: One end of the limiting rod (14) is fixedly connected to an anti-detachment block (15), which is circular in shape.

5. The transmission line fault location and maintenance equipment according to claim 1, characterized in that: The other end of the threaded rod (6) is fixedly connected to a turntable (16), which is circular in shape.

6. The transmission line fault location and maintenance equipment according to claim 5, characterized in that: The surface of the turntable (16) is provided with anti-slip textures, which are arranged in a circular pattern.