Types of Dampers in Transmission Lines And Overhead Power Lines

They are used on transmission lines or power lines to lessen the impact of vibrations caused by wind. The conductors, towers, and related hardware may become worn out or under stress as a result of these vibrations. This could cause the conductors to break or become damaged. In order to maintain the dependability and longevity of electricity lines, dampers are made to reduce and regulate these vibrations. The dampers install along power lines at specified intervals based on the conductor diameter, tension, and expected wind conditions. Additionally, the dampers lessen the possibility of conductor slapping or galloping.

Different types of dampers in transmission lines and overhead power lines

The common damper types are listed below:

Stockbridge Dampers

The most popular kind of helical vibration damper, these stockbridge dampers are made up of two or more steel messenger wires hanging a centre weight. While the brackets offer aerodynamic resistance to the vibrations caused by the wind, the weight counterbalances. They are appropriate for a range of conductor diameters and can regulate different vibration frequencies.

How does a stockbridge damper work in transmission and power line?

A stockbridge damper is a type of tuned mass damper that is intended to reduce vibration caused by vortex-induced vibration in cables. It is made up of two masses that are shaped like a bell or horseshoe, messenger cable, and a clamp that is used to secure the mass to the cable.

Spacer Dampers

The spacer damper combines the aeolian vibration control function of a damper with the conductor separation and oscillation control function of a spacer. It often offers the most cost-effective method of safeguarding multi-conductor bundle systems. There are configurations for 2, 3, 4, and 6 bundle conductors available for the frame-style spacer damper.

Why are spacer dampers used in transmission lines and pow lines?

The primary function of spacer dampers is to ensure that the conductors in a bundle are oriented correctly and have enough distance between each other. However, the spacer dampers may also offer dampening, which is preferable for reducing vibrations caused by wind.

Vibration dampers

Vibration dampers in transmission lines and power lines to lessen the impact of wind-induced vibrations, which can harm conductors and result in mishaps.

Aeolian vibrations of the conductor of transmission lines, ground wires, and other wires are absorbed by these dampers.

Types of dampers in vibration

vibration damper types, such as bolted, preformed, and spiral vibration dampers.