Due to extreme temperature variations in the interior of Spain, there were anomalous oscillations in very high volatge lines, something called 'induced atmospheric vibration'These osculations cause synchronization failures between the electrical systemsIt's a complex phenomenon and there is a need to rebalance electricity flows internationally, it could take a week to fix
That's fascinating.
Induced Atmospheric Vibration (IAV) in high-voltage power lines refers to low-frequency oscillations (typically 0.1–10 Hz) caused by corona discharge effects near the conductors. Here’s a brief breakdown:
When high-voltage lines operate near their corona inception threshold, ionization of surrounding air molecules occurs, creating space charges (ions and electrons).
Under certain conditions (e.g., high humidity, rough conductor surfaces), these charges interact with the electric field, generating periodic electrohydrodynamic (EHD) forces.
The EHD forces induce pressure waves in the air, causing vibrations in the conductor or nearby objects (e.g., insulators).
Effects:
May exacerbate other vibration modes or cause audible hum.
Smooth conductor surfaces (e.g., polished or coated wires).
Optimized voltage gradients to minimize corona.
IAV is less common than mechanical vibrations but is studied for its unique electromechanical interactions. ...
The vibrations can lead to fatigue cracks and loosened hardware.
This article was written by Adam Button at www.forexlive.com. Read More Details
Finally We wish PressBee provided you with enough information of ( Induced atmospheric vibration was the cause of the Spanish power outage )
Also on site :