Re: Causes of the Gran Apagón (Spain), 65 corrective actions

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Sujet : Re: Causes of the Gran Apagón (Spain), 65 corrective actions
De : erichpwagner (at) *nospam* hotmail.com (piglet)
Groupes : sci.electronics.design
Date : 10. Jul 2025, 17:13:01
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Organisation : A noiseless patient Spider
Message-ID : <104ooqd$ukkh$1@dont-email.me>
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Joe Gwinn <joegwinn@comcast.net> wrote:
On Thu, 10 Jul 2025 11:54:09 -0000 (UTC), piglet
<erichpwagner@hotmail.com> wrote:
 
Joe Gwinn <joegwinn@comcast.net> wrote:
On Wed, 09 Jul 2025 21:49:09 GMT, Glen Walpert <nospam@null.void>
wrote:
 
On Wed, 9 Jul 2025 23:07:26 +0200, Carlos E.R. wrote:
 
On 2025-07-09 22:57, Joe Gwinn wrote:
On Wed, 9 Jul 2025 22:10:21 +0200, "Carlos E.R."
<robin_listas@es.invalid> wrote:
 
On 2025-06-17 21:38, Carlos E.R. wrote:
<https://www.theguardian.com/world/2025/jun/17/expert-report-rules-
out-
cyber-attack-for-spain-and-portugal-april-blackout>
 
    *Spanish minister rules out cyber-attack as cause of April
blackout, after expert report*
 
    System failure caused by network?s inability to control grid
voltage said to be behind outage in Spain and Portugal
 
 
<https://elperiodicodelaenergia.com/el-gobierno-aprueba-la-
instalacion-de-compensadores-sincronos-y-refuerza-la-interconexion-con-
francia/>
 
Energy policy
 
*The Government approves the installation of synchronous compensators
and reinforces the interconnection with France*
 
The 65 actions are aimed at incorporating additional tools into the
networks to facilitate voltage control, stability in the event of
oscillations and, in general, to reinforce the electricity system
Redacción
 
Editorial staff
 
07/08/2025
 
The Council of Ministers, at the request of the Ministry for
Ecological Transition and the Demographic Challenge (Miteco), has
approved a list of specific actions to increase the resilience of the
electricity grid,
which will be incorporated as a new Specific Modification to the
Development Plan for the Electricity Transmission Grid 2021-2026, the
second, after the one implemented in 2024. The list includes 65
actions aimed at incorporating additional tools into the grids to
facilitate voltage control, stability in the event of fluctuations
and, in general,
the reinforcement of the electricity system, both on the Spanish
mainland and in the Canary Islands and Balearic Islands.
 
The actions include the installation of synchronous compensators for
the first time on the mainland, as well as the incorporation of new
units on the islands. These devices provide dynamic voltage control
and, given their local nature, are distributed geographically to
reinforce it in the different areas, complementing the equipment and
solutions that the system already has for this function.
 
Translated with DeepL.com (free version)
 
... You can read the rest on the link if desired.
 
I did.  Thanks.
 
What exactly do they mean by "Synchronous Compensators"?
 
I don't know, I'm not an electrical engineer. But one of the comments
may explain a bit:
 
Frank
 
07/08/2025 Synchronous compensators are reverse generators acting as
motors connected to the grid. What follows is simulations to determine
where on the grid they are most effective, power and costs because like
all motors they take active power from the grid which is priced on an
hourly basis. And the last thing is who will pay for the voltage control
service and how the installed equipment will be accounted for.
 
Synchronous Compensators are also known as Rotary Capacitors, they are
unloaded synchronous motors which, like synchronous generators, will
deliver reactive power (same as a capacitor) when overexcited, and consume
reactive power when underexcited (like an inductor).  They have been in
common use since the early days of power distribution to produce reactive
power near loads, to reduce the amount remote generation needs to send
over transmission lines, with the attendant losses.  Regular capacitors
are also used for this purpose, but the rotary type is continuously
adjustable.
 
Yeah.  I read Frank's comment as well, and he may well be correct, but
one cannot assume that politicians are being quite that precise.
 
In the mechanical world, it's quite common to have a large but
unloaded three-phase induction motor running at or near synchronous
speed, precisely to absorb surge loads, and it would also serve to
absorb surge overvoltages ... if they are large enough.  The energy is
stored in the rotational energy of the rotor.
 
Do we have any idea how big these Synchronous Compensators are, in
kilograms?
 
The good news is that they are talking spinning reserve, like big
turbines, not fancy electronics and batteries.
 
Joe
 
 
100 to 400 tons seem to be the figures quoted.
 
I didn't see that anywhere.  Where did you find it?
 
Joe
 

Google, and this …

https://www.weg.net/institutional/NL/fr/news/produits-et-solutions/weg-manufactures-mega-synchronous-condensers

--
piglet

Date Sujet#  Auteur
17 Jun 25 * Causes of the Gran Apagón (Spain), first oficial report46Carlos E.R.
18 Jun 25 +* Re: Causes of the Gran Apagón (Spain), first oficial report19Liz Tuddenham
18 Jun 25 i+* Re: Causes of the Gran Apagón (Spain), first oficial report10Martin Brown
18 Jun 25 ii+* Re: Causes of the Gran Apagón (Spain), first oficial report3Liz Tuddenham
18 Jun 25 iii`* Re: Causes of the Gran Apagón (Spain), first oficial report2Martin Brown
18 Jun 25 iii `- Re: Causes of the Gran Apagón (Spain), first oficial report1Liz Tuddenham
19 Jun 25 ii`* Re: Causes of the Gran Apagón (Spain), first oficial report6Bill Sloman
19 Jun 25 ii `* Re: Causes of the Gran Apagón (Spain), first oficial report5Carlos E.R.
19 Jun 25 ii  `* Re: Causes of the Gran Apagón (Spain), first oficial report4Martin Brown
19 Jun 25 ii   +* Re: Causes of the Gran Apagón (Spain), first oficial report2Bill Sloman
19 Jun 25 ii   i`- Re: Causes of the Gran Apagón (Spain), first oficial report1Carlos E.R.
19 Jun 25 ii   `- Re: Causes of the Gran Apagón (Spain), first oficial report1Carlos E.R.
18 Jun 25 i`* Re: Causes of the Gran Apagón (Spain), first oficial report8Carlos E.R.
18 Jun 25 i +* Re: Causes of the Gran Apagón (Spain), first oficial report3Joe Gwinn
18 Jun 25 i i`* Re: Causes of the Gran Apagón (Spain), first oficial report2Carlos E.R.
18 Jun 25 i i `- Re: Causes of the Gran Apagón (Spain), first oficial report1Joe Gwinn
18 Jun 25 i +* Re: Causes of the Gran Apagón (Spain), first oficial report3Martin Brown
18 Jun 25 i i`* Re: Causes of the Gran Apagón (Spain), first oficial report2Carlos E.R.
19 Jun 25 i i `- Re: Causes of the Gran Apagón (Spain), first oficial report1Martin Brown
18 Jun 25 i `- Re: Causes of the Gran Apagón (Spain), first oficial report1Liz Tuddenham
18 Jun 25 +- Re: Causes of the Gran Apagón (Spain), first oficial report1Martin Brown
21 Jun 25 +* Re: Causes of the Gran Apagón (Spain), battery stations are being constructed2Carlos E.R.
21 Jun 25 i`- Re: Causes of the Gran Apagón (Spain), battery stations are being constructed1Martin Brown
25 Jun 25 +* Re: Causes of the Gran Apagón (Spain), new regulation2Carlos E.R.
26 Jun 25 i`- Re: Causes of the Gran Apagón (Spain), new regulation1Bill Sloman
9 Jul21:10 +* Re: Causes of the Gran Apagón (Spain), 65 corrective actions12Carlos E.R.
9 Jul22:07 i`* Re: Causes of the Gran Apagón (Spain), 65 corrective actions11Carlos E.R.
9 Jul23:08 i +* Re: Causes of the Gran Apagón (Spain), 65 corrective actions7Joe Gwinn
10 Jul00:26 i i+* Re: Causes of the Gran Apagón (Spain), 65 corrective actions2Joe Gwinn
10 Jul01:32 i ii`- Re: Causes of the Gran Apagón (Spain), 65 corrective actions1Carlos E.R.
10 Jul12:54 i i`* Re: Causes of the Gran Apagón (Spain), 65 corrective actions4piglet
10 Jul16:29 i i `* Re: Causes of the Gran Apagón (Spain), 65 corrective actions3Joe Gwinn
10 Jul17:13 i i  `* Re: Causes of the Gran Apagón (Spain), 65 corrective actions2piglet
10 Jul21:04 i i   `- Re: Causes of the Gran Apagón (Spain), 65 corrective actions1Joe Gwinn
10 Jul01:27 i `* Re: Causes of the Gran Apagón (Spain), 65 corrective actions3Carlos E.R.
10 Jul12:51 i  `* Re: Causes of the Gran Apagón (Spain), 65 corrective actions2Carlos E.R.
10 Jul19:56 i   `- Re: Causes of the Gran Apagón (Spain), 65 corrective actions1Carlos E.R.
10 Jul01:42 `* Re: Causes of the Gran Apagón (Spain), first oficial report9Don Y
10 Jul11:49  +- Re: Causes of the Gran Apagón (Spain), first oficial report1Carlos E.R.
10 Jul14:55  `* Re: Causes of the Gran Apagón (Spain), first oficial report7Don Y
10 Jul20:00   `* Re: Causes of the Gran Apagón (Spain), first oficial report6Carlos E.R.
10 Jul22:39    `* Re: Causes of the Gran Apagón (Spain), first oficial report5Don Y
10 Jul23:14     `* Re: Causes of the Gran Apagón (Spain), first oficial report4Carlos E.R.
11 Jul00:20      `* Re: Causes of the Gran Apagón (Spain), first oficial report3Don Y
11 Jul01:27       `* Re: Causes of the Gran Apagón (Spain), first oficial report2Carlos E.R.
11 Jul01:35        `- Re: Causes of the Gran Apagón (Spain), first oficial report1Don Y

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