ELFT HÍRADÓ

[Geza Odor <odor.geza AT ek.hun-ren.hu>]

Tisztelt Lista es admin,
tegnap a lenti levelet kuldtem be egy kerdesre:

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Date: Tue, 29 Apr 2025 20:51:46 +0200 (CEST)
From: Geza Odor <odor.geza AT ek-cer.hu>
To: Vásárhelyi Gábor <gabor.vasarhelyi AT ttk.elte.hu>
Cc: "fizinfo AT lists.kfki.hu" <fizinfo AT lists.kfki.hu>
Subject: Re: [Fizinfo] Spanyol áramleállás okai

Tisztelt Vasarhelyi Gabor,
miutan mi ilyen jellegu elektromos hibak kutatasat is vegezzuk,
Hartmann Balint nyoman az alabbi, legfrisebb szakartoi velemenyt tudom
tovabbitani:

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The massive blackout that affected Spain and Portugal on April 28, 2025,
originated from a cascading
sequence of technical failures within the Iberian power grid. The outage 
was
initially triggered by a
physical fault—a transmission line damaged by a fire in southwest 
France—which
caused the sudden
disconnection of critical cross-border interconnections between Spain and
France.

This disconnection led to a rapid loss of synchronism between the Iberian 
and
the wider European grid.
As Spain and Portugal abruptly became electrically isolated, a severe 
imbalance
between generation and
demand occurred, likely due to a sudden loss of significant imported power 
and
possible subsequent
generator trips within Iberia. The result was a catastrophic frequency 
drop,
exceeding the capacity of
automatic under-frequency load shedding systems designed to protect grid
stability.

Further complicating the situation was the high reliance on renewable 
generation
sources (wind and
solar), which reduced the overall inertia of the system, causing the 
frequency
to fall too quickly for
protective measures to effectively counteract the imbalance. Additionally,
voltage instability and
widespread voltage collapse quickly followed as large portions of the
transmission network lost power
sources.

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Udv.:
Odor Geza
---------------------------------------------

Erdeklodok, hogy miert nem jelenhet meg egy
sokakat erdeklo tudomanyos vizsgalat eredmenye a
Fizinfon tolem ?


Udv.:
        Odor Geza


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