Anti-resonance spacer for double-bundle conductor

Abstract

The invention discloses an anti-resonance spacer for a double-bundle conductor. The spacer comprises two conductor clamping head bodies; a connecting lever is connected between the two conductor clamping head bodies; an anti-resonance mechanism is arranged between each conductor clamping head body and the end part of the connecting lever and comprises a connecting rod; each connecting rod comprises a connecting rod body and cylindrical structures, wherein the cylindrical structures are arranged at the two ends of the connecting rod body; the cylindrical structures at one ends of the connectingrod bodies are arranged inside the corresponding conductor clamping head bodies; the cylindrical structures at the other ends are arranged inside the connecting lever; and each connecting rod body issleeved with two spiral springs, wherein one spiral spring is arranged between the end part of the connecting lever and the end part of the corresponding conductor clamping head body, and the other spiral spring is arranged on the corresponding connecting rod body inside the connecting lever. The anti-resonance spacer for the double-bundle conductor has the advantages that when one conductor vibrates, vibration is absorbed by the springs, so that vibration is prevented from being transmitted to another conductor, and resonance can be avoided.

Description

technical field [0001] The invention belongs to the field of spacer rods, and more specifically relates to an anti-resonance double-split spacer rod. Background technique [0002] Long-distance, high-capacity ultra-high voltage transmission lines use two, four or more split conductors for each phase conductor. At present, 220KV and 330KV transmission lines use two-split conductors, and 500KV transmission lines use three-split and four-split conductors. In the 500KV EHV transmission line, six-split and more split wires are used. In order to ensure that the distance between the split wire bundles remains unchanged to meet the electrical performance, reduce the surface potential gradient, and prevent electromagnetic force between the wire bundles under short-circuit conditions, Mutual attraction and collision are caused, or although the momentary attraction and collision are caused, the normal state can be restored after the accident is eliminated. Therefore, spacers are instal...

AI Technical Summary

Problems solved by technology

[0002] Long-distance, high-capacity ultra-high voltage transmission lines use two, four or more split conductors for each phase conductor. At present, 220KV and 330KV transmission lines use two-split conductors, and 500KV transmission lines use three-split and four-split conductors. In the 500KV EHV transmission line, six-split and more split wires are used. In order to ensure that the distance between the split wire bundles remains unchanged to meet the electrical performance, reduce the surface potential gradient, and prevent electromagnetic force between the wire bundles under short-circuit conditions, Mutual attraction and collision are caused, or although the momentary attraction and collision are caused, the normal state can be restored after the accident is eliminated. Therefore, spacers are installed at a certain distance in the span, and the vibration and breeze vibration of the secondary span are also affected by the installation of spacers. It can play a certain inhibitory effect. According to the working characteristics of the spacer, it can be roughly divided into two types, namely, damping type spacer and non-damping type spacer. The characteristic of damping type spacer is that rubber is used as damping at the movable joints materials to consume the vibration energy of the wires and have a damping effect on the vibration of the wires. Therefore, this type of spacer is suitable for various regions. However, considering the economy of power transmission lines, this type of spacer is mainly used for wires that are prone to vibration For the lines in the area, the shock absorption of non-damping spacers is poor, so it can be applied to lines in areas where vibration is not easy to occur or used as jumper spacers

[0003] In the existing technology, especially the double-split conductors, resonance is very easy to occur when encountering the vibration of the sub-gap and the vibration of the breeze, so that the two conductors often need to be vibrated for a long time to consume energy to stop the vibration

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