Detachable on-load bypass drop-out fuse combination device

By designing a detachable load-bearing bypass drop-out fuse combination device, the problems of complex replacement and low safety of traditional fuses are solved. It realizes fuse replacement with fast disassembly and assembly, strong adaptability and high safety, and is suitable for high-voltage transmission lines.

CN223566570UActive Publication Date: 2025-11-18ZHANGZHOU POWER SUPPLY COMPANY STATE GRID FUJIANELECTRIC POWER +1
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Patent Information

Application Number
CN202422892011.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-11-18
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

In the existing technology, the replacement and maintenance process of drop-out fuses is complicated, time-consuming, and has low safety. They lack real-time current monitoring, cannot be adapted to different wire diameters and crossarm specifications, and lack lead wire fixing and anti-loosening functions, which increases the operation risk.

Method used

A detachable load-bearing bypass drop-out fuse assembly was designed, comprising a quick-release connection structure, a current monitoring module, a universal insulated lead wire fixing bracket, and an integrated insulating shield. It can quickly adapt to different crossarm specifications and wire diameters, monitor the current in real time, and prevent the fuse from dropping.

Benefits of technology

It enables rapid disassembly and assembly, strong adaptability, and high safety in fuse replacement, reducing operational risks, improving operational efficiency and safety, meeting the testing requirements of 10kV insulation tools, and is suitable for high-voltage transmission lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a detachable on-load bypass drop-out fuse combination device. The fuse combination device comprises a drop-out fuse and a detachable connecting structure, and bypass drainage devices with adjustable drainage wire supporting frames are arranged on the two sides of the detachable connecting structure in pairs. The bypass drainage device is fixed at an external cable through a wire clamp and is mounted at an external fixing device through a detachable connecting structure; according to the utility model, the operation simplicity, safety and operation efficiency are improved, the adaptability is enhanced, and the system has a real-time monitoring function.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power grid equipment, especially a detachable load bypass drop-out fuse combination device. BACKGROUND

[0002] In the power system, the drop-out fuse as a kind of protection element, its replacement and maintenance work is an important link to ensure the stable operation of power grid.In the known technology, the traditional load bypass replacement drop-out fuse method usually involves complex operation process, long time consumption, and low safety.These traditional methods usually require operating personnel to directly contact high-voltage equipment, increasing the operation risk.In addition, the traditional method lacks real-time current monitoring function, which cannot effectively prevent overcurrent and other safety hazards.Therefore, the existing technical scheme needs a more efficient and safer way to replace the drop-out fuse.

[0003] The closest prior art to the present application is: In the existing technical scheme, a common method is to use parallel groove clamp or amp clamp connection mode for bypass drainage, which takes a long time to connect and cannot realize real-time current monitoring.

[0004] Compared with the present application, the main shortcomings of the prior art are:

[0005] Lack of quick disassembly and adaptation to different cross arm specifications, resulting in inconvenience in transportation and on-site deployment.

[0006] The bypass drainage device cannot adapt to different wire diameters, and has no anti-loosening function, increasing the operation risk.

[0007] Lack of real-time current monitoring and display function, cannot real-time monitor the flow condition of bypass system, reduces the safety of operation.

[0008] No lead fixing insulating universal support is designed, leading to inflexible lead fixing and operation space adjustment.

[0009] No integrated drop-out fuse insulation shielding cover, cannot effectively prevent the accidental drop of the fuse during operation. INVENTION CONTENTS

[0010] The utility model provides a detachable load bypass drop-out fuse combination device, improves the operation convenience, safety and operation efficiency, enhances the adaptability, and has real-time monitoring function.

[0011] The utility model adopts the following technical solutions.

[0012] A detachable load bypass drop-out fuse combination device, the fuse combination device comprises a drop-out fuse, a detachable connecting structure, a bypass current leading device with adjustable current leading line support frame is arranged on both sides of the detachable connecting structure; the bypass current leading device is fixed to the external cable by a wire clamp, and the detachable connecting structure is installed on the external fixing device.

[0013] The drop-out fuse is connected with the external cable fixed by the wire clamp through the current leading line of the adjustable current leading line support frame.

[0014] The bypass current leading device is installed on the external cross arm by the detachable connecting structure.

[0015] The detachable connecting structure comprises a buckle and a bolt.

[0016] The bypass current leading device is a current leading device provided with a current monitoring module and capable of adapting to different wire diameters; the current monitoring module comprises a sensor for real-time monitoring of cable current and a display for real-time display of current monitoring data.

[0017] The sensor is connected with an alarm, so that when the current monitoring data of the sensor exceeds the preset threshold, the alarm automatically alarms.

[0018] The current leading line support frame is an insulated universal support frame capable of quickly fixing current leading lines of different diameters, providing free movement and adjustment of working space, the current leading line fixing insulated universal support frame is formed of insulating material, has multiple adjustable fixing points and rotating joints, so that the current leading line can be quickly fixed and moved and adjusted according to the work needs.

[0019] The drop-out fuse is covered with an integrated drop-out fuse insulation shielding cover for preventing accidental drop of the fuse during operation, the integrated drop-out fuse insulation shielding cover is formed of light insulating material, and the edge thereof is provided with a fixing device connected with the drop-out fuse.

[0020] The utility model provides a detachable load carrying bypass replacement drop-out fuse combination device, aiming at improving the efficiency and safety of piezoelectric power line maintenance. The device has the functions of quick disassembly, adaptation to different cross arm specifications, anti-loosening, current real-time monitoring, etc. Through its unique design, it realizes quick adaptation and fixation of different cross arm specifications, significantly improving the flexibility and efficiency of operation. The integrated current real-time monitoring and alarm system ensures safety during operation. The lead fixing insulating universal support allows quick fixation of lead lines of different diameters and provides free adjustment of operation space, enhancing the convenience and safety of operation. The integrated insulating shielding cover simplifies the insulating shielding process, effectively prevents accidental dropping of fuses during operation, and further improves the safety and reliability of power line maintenance work. The design of the device meets the test requirements of 10kV insulating tools. The bypass current diversion device meets the through-flow capacity of at least 167A and can adapt to aluminum stranded wires with a diameter of 35-240mm, suitable for quick and safe replacement of drop-out fuses in high-voltage transmission lines.

[0021] The utility model has the advantages of:

[0022] 1. Quick disassembly and connection structure is provided, which is the key to quick on-site deployment and disassembly, significantly improving operation efficiency and convenience. The detachable connection structure includes innovative buckle and bolt design, allowing the device to be quickly fixed and released with the cross arm, which is a core innovation point for improving operation efficiency.

[0023] 2. The bypass current diversion device is provided with an integrated current monitoring and alarm system. The integrated current monitoring and alarm system greatly improves operation safety and prevents potential safety hazards such as overcurrent. The bypass current diversion device not only adapts to conductors of different diameters, but also integrates a current monitoring module, which can display current data in real time and issue an alarm in case of overcurrent. This is a key technology for improving safety.

[0024] 3. Lead fixing insulating universal support is provided: the support provides the ability to quickly fix and freely adjust the operation space, enhancing the convenience and safety of operation; and the lead fixing insulating universal support is specially designed to allow quick fixation of lead lines of different diameters and free movement and adjustment within the operation space, improving the flexibility of operation.

[0025] 4. An integrated drop-out fuse insulating shielding cover is provided; the shielding cover simplifies the insulating shielding process and effectively prevents accidental dropping of fuses during operation, improving safety and work efficiency. The integrated design reduces installation time, and the special fixing device ensures that the shielding cover does not accidentally fall off during operation, improving the reliability of operation.

[0026] 5. The multifunctional device can adapt to different cross arm specifications and wire diameters, improving the versatility and practicality of the device, and enabling the same device to be applied to a variety of different power grid environments, thereby improving the range of applications of the device.

[0027] 6. The device is economical and can reduce maintenance costs. By simplifying the process and improving work efficiency, the utility model helps to reduce maintenance costs and improve economic benefits. By simplifying the insulation shielding process and shortening the bypass lead time, the maintenance cost is reduced, and the work speed and safety are improved, thereby realizing the improvement of economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further explained in detail below in combination with the drawings and specific embodiments:

[0029] ATTACHMENT Figure 1 is the schematic diagram of the utility model;

[0030] ATTACHMENT Figure 2 is the schematic diagram of the integrated drop-out fuse insulation shielding cover;

[0031] In the figure: 1 - detachable connection structure; 2 - cross arm; 3 - adjustable current lead support frame; 4 - current monitoring module; 5 - bypass current lead device; 6 - wire clamp; 7 - external cable; 8 - drop-out fuse. DETAILED DESCRIPTION

[0032] As shown in the figure, a detachable load bypass drop-out fuse combination device, the fuse combination device includes a drop-out fuse 8, a detachable connection structure 1, and a bypass current lead device 5 with a pair of adjustable current lead support frames 3 arranged on both sides of the detachable connection structure; the bypass current lead device is fixed to the external cable 7 by wire clamp 6, and the detachable connection structure is installed at the external fixed device.

[0033] The drop-out fuse is connected to the external cable fixed by the wire clamp through the lead wire of the adjustable current lead support frame.

[0034] The bypass current lead device is installed at the external cross arm 2 by the detachable connection structure.

[0035] The detachable connection structure includes buckles and bolts.

[0036] The bypass current lead device is a current lead device provided with a current monitoring module 4 and capable of adapting to different wire diameters; the current monitoring module includes a sensor for real-time monitoring of cable current and a display for real-time display of current monitoring data.

[0037] The sensor is connected to an alarm, so that when the current monitoring data of the sensor exceeds the preset threshold, the alarm automatically alarms.

[0038] The drainage line support frame is an insulated universal support frame that can quickly fix drainage lines of different diameters, provide a free movement and adjustment of the working space, and is formed of an insulating material, has multiple adjustable fixing points and rotating joints, so that the drainage line can be quickly fixed and moved and adjusted according to the work needs.

[0039] The drop-out fuse is covered with an integrated drop-out fuse insulation shielding cover for preventing accidental drop of the fuse during work, the integrated drop-out fuse insulation shielding cover is formed of a light insulating material, and the edge thereof is provided with a fixing device connected with the drop-out fuse.

[0040] The integrated drop-out fuse insulation shielding cover is a U-shaped elastic body, which is used to cover and clamp the drop-out fuse by its elastic force.

[0041] Embodiment:

[0042] The deployment method of the product is as follows:

[0043] Preparation: According to the site conditions and cross arm specifications, select appropriate detachable connection structure components.

[0044] Device installation: Fix the detachable connection structure on the cross arm, ensure firmness and have anti-loosening function.

[0045] Bypass drainage: Connect the bypass drainage device to the designated conductor, and adjust the current monitoring module to adapt to different wire diameters.

[0046] Drainage line fixation: Use the drainage line fixation insulated universal support frame to fix the drainage line, and adjust it according to the work space needs.

[0047] Insulation shielding: Cover the integrated insulation shielding cover on the fuse, and ensure that the shielding cover is fixed firmly.

[0048] Monitoring and alarm: Start the current monitoring module to monitor the bypass system in real time, and ensure the safety of the work.

[0049] Work completion: After confirming that all systems are running normally, complete the replacement or maintenance of the fuse.

Claims

1. A combination load side bypass drop-out fuse assembly comprising: The fuse combination device comprises a drop-out fuse, a detachable connecting structure, and bypass drainage devices with adjustable drainage line support frames arranged in pairs on both sides of the detachable connecting structure; the bypass drainage devices are fixed to external cables by wire clamps and installed on external fixed devices by the detachable connecting structure.

2. The combination load side bypass drop-out fuse assembly of claim 1 wherein: The bypass drainage devices are installed on external cross arms by the detachable connecting structure.

3. The combination load side bypass drop-out fuse assembly of claim 1 wherein: The detachable connecting structure comprises buckles and bolts.

4. The combination load side bypass drop-out fuse assembly of claim 1 wherein: The bypass drainage devices are drainage devices provided with current monitoring modules and capable of adapting to different wire diameters; the current monitoring modules comprise sensors for real-time monitoring of cable currents and displays for real-time display of current monitoring data.

5. The combination load side bypass drop-out fuse assembly of claim 4 wherein: The sensors are connected to alarms, so that when the current monitoring data of the sensors exceeds a preset threshold, the alarms automatically alarm.

6. The combination load side bypass drop-out fuse assembly of claim 1 wherein: The drainage line support frame is a drainage line fixing insulating universal support capable of quickly fixing drainage lines with different diameters, providing a free movement and adjustment space for work, and being formed of insulating materials, having multiple adjustable fixing points and rotating joints, so that the drainage line can be quickly fixed and moved and adjusted according to work needs.

7. The combination load side bypass drop-out fuse assembly of claim 1 wherein: The drop-out fuse is covered with an integrated drop-out fuse insulating shielding cover for preventing accidental falling of the fuse during work; the integrated drop-out fuse insulating shielding cover is formed of light insulating materials, and the edges thereof are provided with fixing devices connected to the drop-out fuse.