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Transmission line tower galloping damping device

A technology of a transmission line tower and a shock absorption device, which is applied in the field of transmission lines, can solve the problems of high cost of improvement, failure to consider the research on galloping shock absorption of transmission line towers, etc., and achieve the effect of improving the bearing performance.

Pending Publication Date: 2019-11-05
STATE GRID CORP OF CHINA +1
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  • Abstract
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Problems solved by technology

Although the anti-dancing performance of the iron tower can be improved after reinforcement, the improvement cost is relatively high, and not all iron towers are suitable for modification
[0004] To sum up, the existing research has its own advantages and disadvantages, and has not considered the research on the vibration reduction of transmission line towers.

Method used

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  • Transmission line tower galloping damping device
  • Transmission line tower galloping damping device
  • Transmission line tower galloping damping device

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-7 , a transmission line iron tower galloping damping device, comprising a transmission line iron tower galloping damping device 27, characterized in that: the bottom end of the transmission line iron tower galloping damping device 27 passes through the lower ball head hanging ring 8 and the insulator string 23 One end is connected, and the other end of described insulator string 23 is connected on the wire 25 by wire clip 24, and the iron ...

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Abstract

The invention discloses a transmission line tower galloping damping device. The bottom end of a transmission line tower galloping damping device is connected with one end of an insulator string through a lower ball eye. The other end of the insulator string is connected to a conductor through a wire clamp. The upper end of the transmission line tower galloping damping device is connected with a tower cross arm through a tower cross arm connecting structure. A damping spring is a carrier for absorbing the dynamic force generated by the galloping of a transmission line. When the line is galloping, the damping device works to achieve a damping effect. A protective spring and a hydraulic rod work together.

Description

technical field [0001] The invention relates to a shock absorbing device, in particular to an iron tower galloping shock absorbing device of a power transmission line, which belongs to the technical field of power transmission lines. Background technique [0002] Conductor galloping in transmission lines is a low-frequency, large-amplitude self-excited vibration phenomenon generated by eccentric ice-coated conductors under wind excitation. Galloping of transmission lines can cause phase-to-phase flashover, damage to ground wires and conductors, and serious accidents such as line tripping, power failure, disconnection, and tower collapse, which seriously threaten the safe and stable operation of the power grid and cause major economic losses. [0003] In terms of galloping prevention and control, existing research measures mostly start with installing spacers, building new lines to avoid galloping areas, and reinforcing towers. Installing spacers at intervals on the wires is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G7/14
CPCH02G7/14
Inventor 葛雄张建德朱传刚雷雨钟燃侯新文王京波
Owner STATE GRID CORP OF CHINA
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