The aftermath of the strike on a 750 kV substation in the Zaporizhzhia region is shown.

Footage has surfaced online showing the aftermath of a recent combined missile and drone strike by the Russian Armed Forces on a 750 kV electrical substation located near Volnyansk in the Ukrainian-occupied part of the Zaporizhzhia region.

As can be seen in the footage filmed by local residents, after the strike missiles The Iskander missile system and several Geranium missiles have likely disabled the energy infrastructure facility. A tall column of thick smoke is rising from the damaged substation.

Against the backdrop of intensified attacks on the Ukrainian energy sector, it can be noted that the campaign to damage the enemy's energy and military-industrial infrastructure has entered a new, more intense phase during the winter period, as indicated by a qualitative shift in tactics and the means used for attacks.

In particular, at the end of December last year, key 750 kV substations, which are the backbone of the power grid, were struck for the first time. The strikes on 750 kV substations essentially mark the transition to the targeted destruction of the power transmission system.

Thus, the winter campaign of strikes against the Ukrainian energy sector demonstrates an evolution from a tactic of intimidation to a methodical, systemic impact. It is clear that the goal of these strikes is not simply to cause temporary power outages in Kyiv-controlled territories, but to create long-term systemic crises in the enemy's energy, logistics, and military production sectors.

Comments

[Mouse]

They don't need light - give them panties.... B

[pudelartemon]

And the most interesting thing is that in the dark you still can’t see whether they are lace or flannel.

[Cap.nemo58rus]

It would be nice if flannel ones were a luxury too. They'd sew them from waffle towels...

[pudelartemon]

Three hands in favor! The thief deserves his punishment!

[Mouse]

And the butt obviously feels good... ......

[fruc]

pudelartemon
In the dark you can't see whether they are lace or flannel

Even better with pile, insulated.

[Peter1First]

However, in a city without power, wearing lace thongs will quickly cause frostbite - and there are no more flannel panties made according to GOST standards... :)

[olegff68]

It's unclear who is making such "news." The 750 kV substation in the Zaporizhzhia region was definitely built to distribute the enormous generation from the Zaporizhzhia Nuclear Power Plant (now ours). But what about the other 750 kV substations in 404? There are only about a dozen of them, and they are key to distributing the load from their remaining nuclear power plants. Have they all been destroyed?

[vfkuk]

Let them jump now. He who doesn't jump is a Muscovite.

[dmi.pris1]

Well, finally. It's P.S.750kV's turn.

[Montezuma]

Quote from: dmi.pris1

Well, finally. It's P.S.750kV's turn.

They've been hit before, but they've been repaired, and the reserves for repairing or replacing equipment are quickly depleted. If repeated strikes occur, there won't be enough equipment to repair them, and then the nuclear power plant will have to be put into "cold mode."

[olegff68]

I'm afraid you don't understand what you're talking about—750 kV substations are individual facilities built for specific generation and specific consumers. When the main transformers fail, there are no "recovery reserves"—they have to be rebuilt from scratch.
They'll confirm this for you in Belgorod. It's more likely that the equipment there was damaged and there are no "reserves" for repairs.

[Montezuma]

Quote: olegff68

I'm afraid you don't understand what you're talking about - PS 750 sq. m. are one-off objects.

Perhaps I don’t understand the specifics; I was more involved with communication systems.

Quote: olegff68

When the main transformers are disabled, there are no "recovery reserves" in principle - they must be built anew.

What if the main transformers weren't severely damaged, but other equipment, of which there's likely a fair amount, was damaged? After all, there had been outages at the 750 kV substations before, but their operation was restored after some time.

[123_123]

The transformers need to be destroyed. They're huge, heavy, and expensive. They're difficult to replace because they're hard to find, and the replacement and transportation process itself is logistically labor-intensive and time-consuming, especially if you're trying to catch them during transport—it's impossible not to notice the movement of such an object.

[Starover_Z]

Quote from: dmi.pris1

Well, finally. It's P.S.750kV's turn.

When they started hitting substations and searching for transformers, they reported that European ones weren't quite suitable. But back then, they were destroying lower-voltage transformers. I wonder what they'll be singing about now?

[Harry.km]

Quote: Starover_Z

European ones are not quite suitable

The European ones fit like a glove. The American ones don't, they have a 60Hz frequency.
.

[kromer]

[quote=Harry.km][quote=Starover_Z]American ones don't fit, they have a 60 Hz frequency
. [/ Quote]

They will install an additional frequency converter and the problem will disappear.

[Asper_Daffy]

Quote from kromer

An additional frequency converter will be installed.

This is very difficult and not cheap.

[kromer]

Quote: Asper_Daffy

This is very difficult and not cheap.

And no one is saying it's easy or cheap. But European countries or the US will pay for the banquet.

[Asper_Daffy]

But not everything can be solved with money. Things have to be done. And that's not easy at all.

[olegff68]

European ones are suitable for 330 kW and below. And even then, it's not that simple. Anything above that doesn't meet European standards and is custom-made for a specific task.

[Kmet]

Judging by the video, it's the power transformers that are smoking. The problem is that the voltage is quite specific (750 kV), not comparable to more common transformers (e.g., 110 kV, 220 kV), and quickly replacing such a beast with something suitable is quite difficult. Even looking at a 110 kV transformer requires a precise specification of the technical characteristics, taking into account the current requirements of consumer networks (winding connection type, power, idle losses, OLTC (another significant and expensive issue), and safety automation... everything has to be taken into account, just to avoid hastily installing something). 110 and 220 kV transformers aren't stocked in warehouses—they're all custom-made items, manufactured individually each time, and lead times are not two months, but six months at best. And this is 750 kV. This is very specific equipment. The only way to do this is to remove them from an existing facility with similar characteristics, but who would hand them over or agree to that? They still have to be physically transported and installed in the same place as the old ones, refilled with oil, degassed, and installing an on-load tap changer (which is always shipped separately)—that's also a challenge. Considering the fact that the access roads to the substation itself must be intact, too. Such things are generally not done quickly. It's not like replacing an instrument transformer (and even that is a hassle).
So, they're unlikely to "sing"... more likely, they'll howl. Apparently, power from the Zaporizhzhia State District Power Plant was distributed there to the 750 kV Central Substation. This is significant and long-term damage. Now they'll try to arrange for power transfers along the power grids. The power engineers there have a tough job.

[navigator777]

And if we assume that they were ordered in large quantities back in 2022 for such cases, because they started hitting them back then and you'd have to be a fool not to take precautions.

[Kmet]

You can assume anything, the only thing that needs to be taken into account in these assumptions is that such a single transformer is as tall as a 3-story building, and has a good weight... And where to store this happiness? And how much should a strategic reserve be? And each transformer is not a toothbrush, it has individual characteristics for its intended use at a specific substation, and one will be an autotransformer, another - with a split winding... all of different power (rest assured: 750 kV is only the voltage, and the power in MVA will be different for everyone), all for different secondary voltage (after all, 750 kV is only on the ultra-high side, and the output can be 330 kV, 220 kV, 110 kV, 550 kV...). And even this is not the main thing. How many transformers (quantity), of what power and for which substations should you determine for the reserve and where to store all this happiness?
In other words, it's impossible to create such a reserve. This doesn't even take into account the cost of the so-called "reserve." A simple example: one 750 kV substation can contain from 2 to 4 (5) transformers, all of varying power and design. How many such transformers should be kept in reserve?
It's not like buying 100 10/0,4 kV units and putting them in a hangar.

[Varyazhko]

How many of them are there for 404, and do you know the cost of one?

[Kmet]

I don't know how many there are, and I can only guess at the cost of one. It all depends on the specific questionnaire and the technical specifications provided. Assuming the cost of one 110 kV transformer with average specifications is approximately... 8 to 12 million Russian rubles, depending on the configuration. A 750 kV transformer is out of the question.

[navigator777]

They could have made as many as needed; there aren't that many of them in Ukraine. Well, you know roughly how many there are. I don't think there are 20 of them, and they're all completely different. They're probably standardized. And even if all 20 were different, they could have ordered an exact copy of each. The price wouldn't have increased, after all, three years had passed since the first strikes. It would have been foolish to sit back and wait for Russia to knock them all out, and they weren't even bothering because they didn't know which ones to start with. What would you have done if you were the president? Would you have started arguing about a split winding or an autotransformer? You'd have given the order to ORDER everything for replacement, paid for by the US, and that's it.

[Kmet]

The president shouldn't be thinking about transformers, but rather about creating conditions to prevent society from going berserk, to prevent hatred from multiplying, to create the conditions for preventing conflicts rather than the graveyard of the population, to prevent radicals and fascists from coming to power. The country is like the president... at a first glance.
And you still won't be able to buy transformers from a spare parts store. So what? You'll need to keep a spare parts store and a nuclear power plant ready somewhere, just in case something happens... A moon rock falls, or a shell hits...

[navigator777]

Why can't it be done in the spare parts department? You can order a replacement for the burned-out one, but why not in the spare parts department? What's stopping us from doing this? Our Russian bias, the idea that everyone there is corrupt and idiotish?

[Neo-9947]

It's always nice to read a comment from an expert on the topic of an article.


P.S./ And not just "hurray" and "our guys are great"

[sir Garry]

I agree on 100%, colleague!

[Kmet]

Thanks, and the same goes for you! I was simply answering the question that you can't plan for everything in life "just in case."

[ideo098]

While transformers for low power and voltage are still being found and repaired, the network is not "down", there is a good safety margin.
But at 750 kV, that's a bigger problem. It's unlikely that there are dozens of such transformers lying around somewhere, and they can't be manufactured quickly. We need to continue decommunization in this area and de-electrification.

[wladimirjankov]

[quoteWell, finally. It's P.S.750kV's turn][/quote]
But the queue was simply too long. As long as four years. It's still completely unclear why the 750 kV and 330 kV substations and overhead lines weren't prioritized back in 2022. These are key components of Ukraine's power supply system. Without them, the system would have simply collapsed. Energy experts know this and have long been talking about it. The reasons that prompted our military to hold back are incomprehensible. Was it some tacit agreement, politics, betrayal by high-ranking officials, or some fanciful humanitarian considerations that prevented this? It's unclear. But it's clear that the nuclear power plant, the 750 kV and 330 kV substations and overhead lines, which form the core of the enemy's power supply system, its backbone, have been functioning smoothly for all four years, providing generation, transmission, and electricity flows to all industrial regions of Ukraine, meeting the needs of its consumers, including defense industry enterprises. The attacks were primarily localized, targeting the lower 110, 10, and 6 kV substations, thermal power plants, and traction substations. This allowed the enemy to quickly repair the damage and activate bypass and backup power lines. Therefore, power was maintained in enemy cities, along with the military-industrial complex, all communications, transportation, the metro, railways, logistics, and communications.

[pudelartemon]

I recalled an old joke.
- Better late than never,
said the man burying his mother-in-law

[Zamkadysh]

Footage has surfaced online showing the aftermath of a recent combined missile and drone strike by the Russian Armed Forces on a 750 kV electrical substation located near Volnyansk in the Ukrainian-occupied part of the Zaporizhzhia region.

Excellent news! Work on PS-750 is one thing. The direction is encouraging. We're starting to create conditions for civilians to leave. It will be easier for us to liberate this strategically important settlement later.

[Mikhail Nasharashev]

750 kV... that's something new, they decided to disconnect the nuclear power plant from the power grid.

[Andobor]

Quote: Mikhail Nasharashev

750 kV... that's something new, they decided to disconnect the nuclear power plant from the power grid.

This NPP substation no longer has:
Zaporizhzhia-750 substation. Currently, it is the terminal for the 750 kV network; only the overhead line to the 750 kV Dniprovska substation is operational. Two other 750 kV overhead lines (to the 750/500/330 kV Donbasska substation and to Zaporizhzhia Nuclear Power Plant) are disconnected. It is a key transmission line for the Zaporizhzhia-Dnipropetrovsk region, with six 330 kV overhead lines: Dnipropetrovsk, Zaporizhzhia-330, two to the Dnipro-Donbass substation, and two to the Kurakhovskaya Thermal Power Plant.

[dnestr74]

Why not start with them? Can anyone tell me?

[Piramidon]

Quote: dnestr74

Why didn't you start with them?

As usual in such comments, I should also add: “I wrote here a long time ago, but the General Staff didn’t listen to me.”

[dnestr74]

No, I'm just curious.

[pvs]

Surovikin spoke about this before he was removed from office. And if they had started then... They would have finished by now...

[Piramidon]

Quote: pvs

Surovikin already talked about this. And if they had started then... They would have finished by now.

What? Under Surovikin, UAVs were produced in small batches, while the UMPKs for FABs were still only being developed.

[ideo098]

Depletion of repair supplies in the Outskirts and in Geyropa.

[Kmet]

It's very difficult to answer this question with any certainty. If they'd started killing 750 kV all at once, entire regions would have been blacked out. Zaporizhzhya NPP is also at risk as the closest one (after all, no one has cancelled their own needs). It would have been a complete disaster for the entire energy sector. The mines would have stopped, the civilian population wouldn't have said a word. The cities would have faced epidemiological risks, bakeries would have stopped. A humanitarian catastrophe is obvious. Western media would have been screaming with glee about the beasts in Russia. The UN would have been convened, and all sorts of other disasters would have happened. But as it is, it's probably just escalating.

[WIS]

Quote: Kmet

It's very difficult to answer this question with any certainty. If they had started cutting off 750 kV power all at once, entire regions would have experienced rolling blackouts. Zaporizhzhya NPP is also at risk as the closest one (after all, no one has cancelled its own needs). It would have been a checkmate for the entire energy sector; the mines would have come to a standstill. The civilian population wouldn't say thank you.The cities would have created the preconditions for an epidemiological nature, bakeries would have stopped... a humanitarian catastrophe is evident... If only the Western media would have joyfully cried out about the beasts in the Russian Federation... They would have convened the UN and all sorts of other disasters... But as it is, it will probably continue to escalate...

You are doing the right thing and expressing your thoughts, which I don’t think is a sin. com reread... and everyone together rethinks everything.
It is only noticeable that on this rags People are like "wood chips in a forest" (c) then and now.
PS: Is peace with victory and the death of "a million souls", as in the past, done correctly?

[dnestr74]

The price is just a bit high on our part for this generosity.

[Jose]

Forget about the UN, this rag means nothing anymore.

[Mikhail Nasharashev]

It's hard to say
My opinion is that at first they didn't want to smash everything to pieces, they just wanted to change the regime. Then it became clear that wouldn't work and they'd have to tear everything down, otherwise they wouldn't give in. Plus, at the initial stage, they didn't have enough weapons.

[K_4]

Maybe they'll start hunting for Zelensky and attack Kyiv and Bankovskaya during the next European delegation... dreams...

[navigator777]

Quote: ideo098

While transformers for low power and voltage are still being found and repaired, the network is not "down", there is a good safety margin.
But at 750 kV, that's a bigger problem. It's unlikely that there are dozens of such transformers lying around somewhere, and they can't be manufactured quickly. We need to continue decommunization in this area and de-electrification.

And if the 750 transistors are already manufactured and are lying around, they could have been pre-ordered in 2022 after our first strikes. Why do you think the KhHLs are complete idiots and didn't think about this? Three years have passed, enough could have been manufactured.

[dementor873]

Where will they get so many and so quickly?

[Plate]

They say that in China they can whip up anything in a couple of weeks.

[Simargl]

750 kV substations are intersystem and almost completely supply electricity do not affect.
They strongly affect interruption resistance network.
This means that if problems arise in one part of the system, it will no longer be possible to redistribute energy from other areas. Furthermore, local power plants will have to be more actively involved in regulation (changing their capacity).
There are about ten of them on the territory of the Ukrainian Reich.
Transformers are important, of course, but switches are even more important.

[dementor873]

They affect the operation of the nuclear power plant. Generated power is more conveniently transmitted over long distances via 750 kV lines with minimal losses. The Zaporizhzhya NPP has six power units, each connected to an outdoor switchgear via a 750 kV busbar bridge. Four 750 kV overhead lines extend from the 750 kV switchgear. Furthermore, power units four and five are equipped with 750/330 kV autotransformers, not 750 kV transformers. This means that only two units are capable of operating on 330 kV lines. If the 750 kV lines are shut down, generation will drop significantly.

[Simargl]

So, nuclear power plants cannot operate without a large grid; thermal power plants, thermal power plants, and hydroelectric power plants are included in the regulation...
The generator voltage is 24 kV, and the transformers there are most likely single-phase.
In any case, it is necessary to drill through the 300-750 kV substation carefully so as not to damage the nuclear power plant.

[dementor873]

A day passes between bombings, just the right time to gradually put the reactors to sleep.

[Simargl]

That's not how it's done. They'll persecute them to the bitter end.

[dementor873]

If they could have dropped roughly 1 GW on the line on January 1st, and then 50 MW less every day, the automation would have handled it automatically. Unless Zelensky personally unscrews the fuses, you still need to know what and where to unscrew them. At Chernobyl, the specialists screwed them up. The people at nuclear power plants are mostly smart and don't think in terms of "whoever doesn't jump around is a Muscovite."

[Simargl]

The point is not just to reset it - it can be done instantly: the steam will go out the "whistle", and it will be safe, so that later the nuclear power plant will not be run, but simply turned off.

[dementor873]

Judging by the way the energy is being removed, specialists from Atomenergo have been brought in to handle this matter.

[Simargl]

specialists from Atomenergo were brought in to this case

A good enough relay operator.

[Jager]

I seriously doubt the units at Zaporizhzhya NPP have been operating since 2022. In theory, everything there should be in cold shutdown mode. Surely, specialists wouldn't keep nuclear reactors within reach of enemy nuclear weapons. Cooling is required for the spent nuclear fuel pool. And even then, in theory, everything there should have cooled down by now within four years for transport and removal of all the highly radioactive equipment to a safe location.

[Olegi1]

We should have started with 750 sq. m on the first day, otherwise everything would have been finished long ago...

[Simargl]

For what?
They were hit, if not from the first day, then from the very beginning.
I don’t understand: if you claim something, you must have information, but such a statement implies that you didn’t even look into it.
At the beginning of the SVO, they hit 330-750 kV to reduce stability. Then they hit the power generation. Now they're finishing off what's left.

[Olegi1]

My opinion about the rather strange "savings" of 750 kV substations is based solely on hundreds of indignant comments from members of this forum throughout the entire period of the SVO. I did not consult any other sources.
Question for you: if there are only a few such substations, why are they still “alive”?

[Simargl]

Question for you: if there are only a few such substations, why are they still “alive”?

If there is no need, why disable them?
They don't generate anything—they're just interconnections. They increase network resilience, but in some cases, this actually makes things worse for the entire system.
And... not all of them are "alive" anymore.
Drawing information from headlines and comments from the uninformed is the very bottom!

[Prometey]

Quote: Olegi1

We should have started with 750 sq. m on the first day, otherwise everything would have been finished long ago...

It would all be over before it even began if they started hitting the Central Control Center and beheading the Ukrainian Reichs.

[navigator777]

Quote: dementor873

Where will they get so many and so quickly?

Who said it was fast? The first strikes began in 2022. They could have ordered them this year. Is three years fast???

[dementor873]

They only applied it once, back under Surovikin, and then there was silence. If things had been different, the picture of today's Kyiv would have appeared three years ago.

[navigator777]

Quote: dementor873

They only applied it once, back under Surovikin, and then there was silence. If things had been different, the picture of today's Kyiv would have appeared three years ago.

Well, more than once, judging by the rumors, but if you anger Russia, then it’s clear to a donkey that Russia will come for other 750 trans.

[dementor873]

The situation with Belgorod shows that they wanted to take it out, and they did. I don't think our energy companies are any worse and can't advise the Ministry of Defense on where to hit to make it hurt the most. Not to mention the delivery systems.

[navigator777]

The point is that the situation with Belgorod showed that everything will be taken out to the border region for us too, so the authorities are pissing themselves.

[Prometey]

It was the fifth year of the war. In about three years, it would finally dawn on them that they could both attack the Central Committee and decapitate the leadership.

[snow mountain]

Quote: K_4

Maybe they'll start hunting for Zelei too.

The hunt for him should have started back in 2022.

[sir Garry]

Quote: Piramidon

What?

Well, there were already Iskanders back then. However, we'll never know much about that period. Unless Surovikin starts writing his memoirs...

[Sergei Viktorovich Korolev]

With a saucepan on your head and in your underwear, they won't even notice.

[uncle Vlad]

How many guys died before it got through to them.

[Vovavvs]

War is sobering! You can feel Chubais's absence... So the "bloody" generals were kicked out of the army... And so they'll get to the owners of the Dnieper bridges.

[Vladimir Nizhegorodsky]

There will be no 330 kW substations, there are a lot of them, but the issue is solvable.
750 kW, no more than 20 pieces in total.
So it's good to thin out the Nazis only after the lights are turned off.
They themselves will run off to Europe and Canada to escape.
To crush the result is the fascist system.
Our cause is just
The enemy will be defeated,
Victory will be ours!