Damping device for inhibiting windage yaw of transmission line insulators

Abstract

The invention relates to a damping device for inhibiting the windage yaw of transmission line insulators, which is characterized by comprising a cylinder, a two-way piston, a spring, hinge seats, a protective sleeve, and an insulating damping medium. The two parts of the two-way piston arranged at an interval are disposed in the cylinder and in sliding fit with the cylinder. The two parts of the two-way pistons are connected by the spring arranged in the interval. The piston rod ends of the two-way piston are equipped with the hinge seats. The cylinder is filled with the insulating damping medium. The two-way piston is provided with damping holes for the insulating damping medium to circulate. The damping device is connected with an insulator and a cross arm through the hinge seats at the piston rod ends. The damping device has the advantages of simple structure, convenience of installation and maintenance, high strength, high elastic modulus, good shock absorption performance, resistance to high and low temperature, corrosion resistance, good insulation property, and long service life. When in use, the damping device is installed between the insulator and the cross arm of a transmission line. The damping device can absorb the vibration impact of strong wind to the insulator, avoid flashover of the transmission line caused by windage yaw, and ensures safe and stable operation of the transmission line.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, and relates to a damping device for suppressing wind deflection of insulators of power transmission lines. Background technique [0002] As an important part of the power grid, overhead transmission lines play an important role in the power system. The safe operation of transmission lines is the key to ensuring the normal supply of electric energy. Due to the wide distribution of transmission lines and complex meteorological conditions, especially under the action of strong winds, it is very easy to cause wind deflection of transmission line insulators, resulting in phase-to-phase flashover of conductors and even tripping and power failure accidents. Under the influence of weather and terrain, it is generally not easy to judge and deal with the occurrence of wind deviation phenomenon, and due to the continuity of wind, wind deviation faults are generally not easy to reclose. The...

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Problems solved by technology

[0003] At present, the wind deflection devices commonly used in high-voltage transmission lines include weights, spacers, and windproof insulators. The problem of wind deflection of transmission line insulators, and the installation of many devices is relatively complicated, which may also bring other safety hazards

As far as the installation and operation process is concerned, the installation of most suppression devices is not simple. However, under the action of strong winds, the wind deflection of the transmission line produces a strong pulling force, and the heavy hammer, windproof pull wire and windproof string cannot fundamentally solve the problem. On the one hand, it is It is easy to be pulled and damaged, and on the other hand, it will bring extra weight or hidden dangers to the transmission line itself, so that it will be more difficult to repair once damaged, causing unnecessary economic losses

[0004] In the prior art, metal wire clips are used to suspend the device composed of air rubber damper, metal spring and other components between the wires to prevent the wind deflection flashover of the wires and further suppress the wind deflection of the insulator. Compared with other Hard supports, heavy hammers, spacers, etc. have different solutions, which can basically solve the problem of wind deflection flashover of transmission lines, but after installation, the joints of parts are prone to friction damage, and they need to be installed in multiple places, which increases the weight of transmission lines, which is inconvenient maintenance while increasing transmission line costs

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