An Introduction to Vibration control
Electrical utilities use vibration dampers on their overhead transmission lines to reduce the effects of wind-induced vibration on the lines. When wind blows across overhead transmission lines, it can cause them to vibrate or oscillate, which can lead to fatigue and even failure of the conductors over time. This can be especially problematic in areas with high wind speeds or where the lines are subject to other sources of vibration, such as nearby highways or railways.
Vibration dampers are typically installed along the length of the transmission line at regular intervals. They work by absorbing some of the energy of the oscillations, which reduces the amplitude of the vibrations and the stress on the conductors. This helps to prevent damage to the conductors and ensures the safe and reliable operation of the transmission line.
In addition to improving the safety and reliability of the transmission line, vibration dampers can also help to reduce the noise generated by the conductors as they vibrate in the wind. This can be especially important in urban areas where transmission lines are located close to homes and businesses.
Selecting the correct size and quantity of dampers for a transmission line section depends on several factors, including the length of the conductor between two supports (Tower or Pole), the type of conductors used, the anticipated wind conditions, and the desired level of vibration reduction................
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