KR-102963602-B1 - Spacer damper apparatus for distribution line

Abstract

The present invention relates to a power distribution spacer damper device that has a structure capable of connecting high-voltage distribution cables of a high-voltage distribution line along a direction perpendicular to the direction of installation and simultaneously allowing them to slide along the same direction as the direction of installation of the high-voltage distribution line, thereby maintaining a constant spacing between high-voltage distribution cables and preventing short circuits or other abnormal accidents caused by the close proximity of high-voltage distribution cables, and by minimizing the movement of each high-voltage distribution cable through the mutual support function between the connected high-voltage distribution cables, thereby significantly reducing cable tension and other external forces applied to the suspension insulator, while the spacer damper itself can freely slide along the high-voltage distribution cables according to the wind direction to attenuate wind power.

Inventors

• 노세찬

Assignees

• 김앤영엔지니어링(주)

Dates

Publication Date

20260513

Application Date

20240229

Claims (2)

1. A spacer damper device installed on a high-voltage power distribution line (10) installed through a steel tower (11) and performing a protective function for maintaining the spacing of high-voltage power distribution cables (12) between two steel towers (11) and for the connection configuration between the high-voltage power distribution cables (12) and the suspension insulators (13) of the steel tower (11), A first spacer damper (100) is installed on the high-voltage distribution cables (12) in a manner that allows sliding along the high-voltage distribution cables (12), with respect to the central part of the distance between two steel towers (11) (hereinafter referred to as the “installation separation point,” with the symbol “C”), and in a manner that connects the high-voltage distribution cables on one side along a direction perpendicular to the installation direction of the high-voltage distribution cables (hereinafter referred to as the “damper installation direction”). A first damper stopper member (200) installed on the high-voltage distribution cables (12) such that the sliding of the first spacer damper (100) along the high-voltage distribution cables (12) is restricted in a predetermined section on one side based on the installation separation point (C): A second spacer damper (300) formed in the same shape as the first spacer damper (100) above, installed on the high-voltage distribution cables (12) in a manner that binds the high-voltage distribution cables (12) on the other side along the damper installation direction based on the installation separation point (C), and simultaneously installed to be able to slide along the high-voltage distribution cables (12): It includes a second damper stopper member (400) installed on the high-voltage distribution cables (12) such that the sliding of the second spacer damper (300) along the high-voltage distribution cables (12) is restricted in a predetermined section on the other side based on the installation separation point (C), and The first spacer damper (100) and the second spacer damper (300) are each, An upper damper member (110, 310) is arranged along the damper installation direction and has multiple semicircular upper cable insertion grooves (111, 311) formed along the damper installation direction, into which high-voltage distribution cables (12) are inserted at the bottom, and both ends of the upper damper member (110, 310) are each extended in a curved shape protruding downwards relative to the damper installation direction; A lower damper member (120, 320) formed in a shape that is vertically symmetrical with respect to the upper damper member (110, 310), wherein when combined with the upper damper member (110, 310), the lower cable insertion groove (121, 321) is connected to the upper cable insertion groove (111, 311) of the upper damper member (110, 310) to form a cable support hole (130, 330) for inserting and passing a high-voltage distribution cable (12), and at the same time, curved extension parts (122, 322) on both sides based on the damper installation direction are each connected to the curved extension parts (112, 312) of the upper damper member (110, 310) to form a streamlined shape; It includes a damper coupling unit (140, 340) comprising a rotational coupling part (141, 341) that rotatably connects the upper damper member (110, 310) and the lower damper member (120, 320) on one side based on the damper installation direction, and a locking part (142, 342) that prevents rotation on the other side. The upper cable insertion groove (111,311) of the upper damper member (110,310) and the lower cable insertion groove (121,321) of the lower damper member (120,320) are formed such that the diameter of the cable support hole (130,330) is larger than the diameter of the high-voltage power distribution cable (12), so that the outer surface of the high-voltage power distribution cable (12) does not come into contact with the cable support hole (130,330). The first damper stopper member (200) is in the form of including a pair of stopper rings (210, 220) that are installed to maintain a predetermined distance on at least one of the high-voltage distribution cables (12) on one side based on the installation separation point (C) and restrict the sliding of the first spacer damper (100) in the section between the two. The second damper stopper member (400) is installed to maintain a predetermined distance on at least one of the high-voltage distribution cables (12) on the other side based on the installation separation point (C), and includes a pair of stopper rings (410, 420) that restrict the sliding of the second spacer damper (300) in the section between the two. The first spacer damper (100) and the second spacer damper (300) each comprise one or more wheel units (150, 350) installed on the upper damper member (110, 310) to rotate around a rotation axis following the damper installation direction and simultaneously installed to contact the outer surface of a high-voltage power distribution cable (12) inserted into the upper cable insertion groove (111, 311); a wheel stop unit (160, 360) installed on the lower damper member (120, 320) and simultaneously making selective contact with the outer surface of the high-voltage power distribution cable (12) inserted into the lower cable insertion groove (121, 321), thereby stopping the rolling motion of the wheel unit (150, 350) upon contact with the outer surface of the high-voltage power distribution cable (12); and a wheel stop unit (160, 360) that receives a control signal transmitted from the outside to control the operation of the wheel stop unit (160, 360) and stops the wheel. The system further includes a wireless communication module (170,370) that transmits to the unit (160,360), wherein the wheel stop unit (160,360) is composed of a solenoid actuator (161,361) and a contact pad (162,362) that are installed inside a storage groove (180,380) formed in a lower damper member (120,320), and as the operating rod of the solenoid actuator (161,361) operates upward, the contact pad (162,362) is withdrawn upward from the storage groove (180,380) of the lower damper member (120,320) and comes into contact with the outer surface of the high-voltage power distribution cable (12), thereby stopping the rolling motion of the wheel unit (150,350). Wind direction and speed meter (500) installed on a steel tower (11) to detect the surrounding wind direction and wind speed: A control unit (600) installed on a steel tower (11), wherein a reference wind speed value for controlling the operation of a wheel stop unit (160, 360) is pre-set, and when the wind speed value transmitted through a wind direction and speed meter (500) is less than the reference wind speed value, a control signal for releasing contact with the high-voltage distribution cable (12) of the wheel stop unit (160, 360) is output: and It further includes a wireless communication unit (700) installed on a steel tower (11) and receiving the control signal of the control unit (600) and transmitting it to the wireless communication modules (170, 370) of the first spacer damper (100) and the second spacer damper (300). The first spacer damper (100) and the second spacer damper (300) each slide along the high-voltage power distribution cables (12) according to the wind direction to attenuate the wind force, and A power distribution spacer damper device characterized by allowing or restricting sliding of the first and second spacer dampers (100, 300) along the high-voltage power distribution cable (12) based on the measurement value of the wind direction and speed meter (500) installed on the steel tower (11), and including a function to prevent wear of the wheel units (150, 350) of the first spacer damper (100) and the second spacer damper (300) and to prevent friction with the high-voltage power distribution cable (12) due to rolling of the wheel units (150, 350).
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Description

Spacer damper apparatus for distribution line The present invention relates to a spacer damper device used in high-voltage distribution lines in the field of power distribution technology, and more specifically, to a power distribution spacer damper device that has a structure capable of connecting high-voltage distribution cables of a high-voltage distribution line along a direction perpendicular to the direction of installation and simultaneously sliding along the same direction as the direction of installation of the high-voltage distribution line, thereby maintaining a constant spacing between high-voltage distribution cables and preventing short circuits or other abnormal accidents caused by the close proximity of high-voltage distribution cables, and by minimizing the movement of each high-voltage distribution cable through the mutual support function between the connected high-voltage distribution cables, thereby significantly reducing cable tension and other external forces applied to the suspension insulator, while the spacer damper itself can freely slide along the high-voltage distribution cables according to the wind direction to attenuate wind power. Generally, power distribution refers to the process in which generated electrical energy is transported through transmission lines to distribution substations, converted into a low voltage level suitable for use by each consumer, and supplied. At this time, the power lines used for distribution are called distribution lines. While overhead distribution lines have been primarily used, underground power lines passing through the ground are on the rise, particularly in large cities and new towns. Furthermore, the facility that directly supplies power to consumers from distribution substations, using electricity transmitted through transmission lines, is called the distribution system, and the distribution system is divided into high-voltage and low-voltage distribution lines centered around distribution transformers, such as pole-mounted transformers. High-voltage distribution lines refer to the lines extending from distribution substations to distribution transformers, such as pole-mounted transformers, which reduce the voltage to a level suitable for consumers, and are typically installed via steel towers. In addition, low-voltage distribution lines refer to the low-voltage lines extending from distribution transformers to each consumer, and are usually installed using utility poles. At this time, the steel towers used to install high-voltage distribution lines have various forms, such as square towers, square towers, portal towers, ox-head towers, rotating towers, and MC towers, taking into account the terrain, similar to the steel towers used to install transmission lines. However, to maintain a stable installation of power distribution lines, interference between multiple power lines (high-voltage cables) arranged side by side must be minimized, and proximity within the allowable spacing between lines must be prevented even in the event of rotation caused by external forces. In addition, the lateral force received by multiple suspension insulators when the distribution line moves laterally due to wind power must be minimized to prevent damage to these multiple suspension insulators caused by the distribution line moving laterally. The applicant has proposed the present invention as a spacer damper technology capable of solving the aforementioned difficulties. FIG. 1 is a configuration diagram illustrating a power distribution spacer damper device according to an embodiment of the present invention based on a plan view. FIG. 2 is a configuration diagram illustrating a power distribution spacer damper device according to an embodiment of the present invention from the side. FIG. 3 is a drawing illustrating a first spacer damper of a power distribution spacer damper device according to an embodiment of the present invention. FIG. 4 is a drawing illustrating a second spacer damper of a power distribution spacer damper device according to an embodiment of the present invention. FIG. 5 is a block diagram illustrating the electrical configuration of a power distribution spacer damper device according to an embodiment of the present invention. The following detailed descriptions relating to the present invention refer to the accompanying drawings, which are embodiments in which the present invention may be practiced and are illustrated as examples of such embodiments. These embodiments are described in detail to sufficiently enable those skilled in the art to practice the present invention. It should be understood that various embodiments of the present invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. Furthermore, it should be u