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High-altitude electric heating foreign body cutter for transmission lines

A technology of transmission lines and cutters, applied in overhead lines/cable equipment, metal processing, etc., can solve problems such as difficulty in finding the force point, difficulty in exerting force, and narrow working space of towers, so as to reduce the working radius or working space Requirements, effects of reduced strength and safety distances, effects of reduced overall operating time

Active Publication Date: 2021-04-13
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual operation, most of the high-altitude foreign objects on transmission lines are made of polymer film materials such as mulch film, greenhouse cover film, dust-proof net, and advertising banners. They have high strength, strong toughness, and high fracture deformation rate. The tower has consumed a lot of physical strength, and the working space on the tower is narrow, it is difficult to find a suitable focus point, and it is not easy to exert force. Therefore, the removal of foreign objects requires multiple transfers of stations, which is time-consuming and laborious

Method used

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  • High-altitude electric heating foreign body cutter for transmission lines
  • High-altitude electric heating foreign body cutter for transmission lines
  • High-altitude electric heating foreign body cutter for transmission lines

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 , 2 As shown, this embodiment is a high-altitude electric foreign body cutter for power transmission lines, hereinafter referred to as the cutter, including an insulating rod 10, one end of the insulating rod 10 is a hand-held end 11, and the other end is a working end 12 close to high-altitude foreign matter. The working end 12 is provided with an electrothermal cutting part 20 for cutting high-altitude foreign objects. The electrothermal cutting unit 20 is provided with a heating head 30 for directly contacting high-altitude foreign objects. The electrothermal cutting part 20 is also provided with an insulating shell, inside which is provided with a temperature control module 22 for controlling the temperature of the heating head 30 and a power supply 23 for providing electric energy for the heating head 30 and the temperature control module 22, and outside the insulating shell is provided with a regulating switch 21 , the regulating switch 21 is co...

Embodiment 2

[0044] Such as image 3 , 4 As shown, this embodiment is a high-altitude electric foreign matter cutter for transmission lines that is convenient for adjusting the temperature of the heating head during operation. 22 isolating and connecting the temperature adjustment switch 21, the temperature adjustment switch 21 is used to send a temperature control signal to the temperature control module 22, the temperature control signal includes a temperature given signal. In some embodiments of the present invention, the isolation connection method includes optocoupler isolation, magnetic coupling isolation or capacitive isolation, and the isolation voltage level should be greater than the maximum isolation voltage level of the power transmission line to which the cutter is applied. If applicable to 10k transmission lines, the isolation voltage level of the isolation connection should be greater than 42kV.

[0045] Preferably, the present embodiment adopts the isolation connection mo...

Embodiment 3

[0052] Such as Figure 5 , 6 As shown, this embodiment is a high-altitude electric foreign matter cutter for transmission lines that is convenient for adjusting the temperature of the heating head during operation. Composition, the electrothermal cutting part 20 is located at the first insulating short rod 13, the adjusting switch 21 is located at the tail insulating short rod 13, the intermediate insulating short rod 13 is between the first insulating short rod 13 and the tail insulating short rod 13, each The intermediate insulating short rod 13 is provided with an optical path medium 14 for transmitting temperature control signals, and the optical path medium 14 of each insulating short rod is sequentially connected from end to end to form an optical path for transmitting temperature control signals.

[0053] Specifically, in this embodiment, the short insulating rods 13 are threadedly connected, and the overall length of the insulating rods 11 during operation is adjusted...

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Abstract

The invention belongs to the technical field of high-altitude operations on power transmission lines, and relates to a tool for removing foreign objects at high altitudes on power transmission lines, which includes an insulating rod and an electrothermal cutting part arranged at one end of the insulating rod. The electrothermal cutting part includes a heating head for cutting foreign objects, Temperature control module and power supply to control the temperature of the heating head. On the one hand, the present invention destroys the foreign body structure on the power transmission line through the high temperature of the heating head, and does not need to provide a force point with a larger force arm, which reduces the working radius or working space requirements; The pulling action is basically eliminated, which can reduce the impact of the operation on the strength and safety distance of the transmission line, and prevent the operation from causing obvious mechanical damage to the transmission line or increasing the hidden danger of damage; on the other hand, because of low physical requirements and low segmentation failure rate, The overall working time of operators has been greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of high-altitude operation on power transmission lines, and in particular relates to a tool for removing high-altitude foreign objects on power transmission lines. Background technique [0002] In the overhead transmission and distribution network, if there are foreign objects on the transmission line, the risk of line trip will increase, which will seriously cause a large-scale power outage. Therefore, it is necessary to clean up the foreign objects on the transmission line in time. There are two cleaning methods, one is through The ground equipment is operated, and the other is operated by aerial work tools on the tower. The existing high-altitude working tools used for foreign matter removal are operating rods with hooks, knives, scissors and other components on the front end, but these tools are all mechanically operated by pulling, shearing, etc., relying on blade cutting or hooking and then pulling the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G1/02B26F3/08
CPCB26F3/08H02G1/02
Inventor 王保方石晓伟李辉尚东升王伟秦艳军房延杰郭超杨磊李想王谦刘亚鹏袁茂森范学军姚孟刘靖峰
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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