Hydro Electic Power Plant Explosion
Russian “Sayano-Shushenskoe” (yep it’s hard to read name) hydro electric power plant is the biggest hydro power plant in Russia, and the biggest (in terms of production) electric generating unit in Russia. It’s power output exceeds 6400 Megawatts and is in the Guinness records book.
Now, today messages started arriving about a huge explosion on the site. Later, those were confirmed by some official media though according to the witnesses they underestimate the damage. Here we have the fresh shots from the territory surrounded by emergency services. They tell that eleven people died and fifty-six are missing.
The signs of panic appeared among locals from the surrounding villages and towns. They fear that in case of further damage the dam could let the water freely go thus meaning that thousand of houses would be flooded.
Locals went to the nearest hills trying while waiting for further news, waiting for some doom on the hilltops with a pleasant view overlooking their houses.
And the video:
And that’s how it looked like before:
And a link to Google Maps to see how big the station really is
some images via nakaba
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That is just sad.
If false Kirov pops up here, spreading his Russophobe ideas… well, you know how to react. He is sad person. Please bear with him.
Seriously, stop faking me you worthless idiot.
And yes, this was a disaster. However, they are still finding people in the rubble, and will continue to search.
There he is already !!!!!! Like a nocturnal animal !! You are disaster too, o my false brother. Living proof of how bad food and poor prospekts can destroy the brain functionality
Сайно-Шушенская …
Где - эта электростанция?
Ужасно!
One explosion at a time, then eventually you drunk worthless fuckers across the sea will be thinned out enough!
Keep cutting cost and killing people, us Americans are still laughing about how proud you are of all your unsafe practices, worthless shit and how that shit is killing you all but yet have that gal to talk shit about America.
Oh yah by the way FUCK YOU!
oh yeah by the way do you remember dow chemical in india. wasn’t that an american thing.by the way FUCK YOU TO BITCH.
what the fuck happened there? what caused the explosion? this is just odd
Did they knew what actually caused the explosion yet?
Another drunk Russian turbine operator fell asleep at work or sold the controller electronics for a few bottles of vodka. Typical; that’s why the all the dirty Slavs flock to decent countries like Estonia.
pld, you stupid idiot… This is a tragedy and perhaps you could stop being a troll for one minute instead of making vodka jokes.
Yes, Vodka jokes are funny…on a lighthearted story…not on something like this.
just for this punk ass comment I will make sure to beet the shit out estonians at every opportunity… fuck you
How does water explode?
Doug.
Look at the spread of debris. Look at other damage. This isn’t just an accident. I thought it was obvious it’s not an accident but it seems there are still people with chicken shit brain out there.
Looks like one of the generators flew apart. That’s a lot of spinning metal.
Why would hydroelectric power plant explode? Was it the Chechens?
James Bond did it!
9th!
WOW I GUESS PIMP WAS RIGHT RUSSIANS ARE DRUNKS AND I WOULD LOVE TO TAG THAT DAM NICE LITTLE CANVAS
i don’t understand what is happening to Russia. i heard a lot of bad news about this country like aircrashes, bomb attacks, killigs, explosion, and a lot of others. it seems like the bad things are coming back to this country like it used to face in 90s.
May i ask the god to help this country to be safe and out of troublesome!
Some people must have already been praying, because it’s still holding back the water.
The problems are caused by Russian mentality. We do things our way !!! Short term !! Ineffective !!! We do everything except fighting corruption !!
IMO, the only big thing that can explode in a hydroelectric power plant is a power transformer. They contain some tons of insulating mineral oil, if gets overheated can create a huge fireball. But I don’t see any signs of fire in these photos,these oils create horrible clouds of black smoke, so i don’t think it’s that.
In hydroelectric plants, generators run at slow speed, maybe 500 or 1000rpm so even if they get off-axis, they won’t create such disaster. Even in such case, they are very bulky constructions to “explode”. On the other hand, in thermo-electric stations, they go up to 3000rpm (3600rpm in USA).
I have a clue that it may be hydrogen explosion. All power stations keep a big array of batteries so in case of total power failure they can restart (pretty much as a car needs a battery and a starter to turn on). During charging, these batteries produce a lot of hydrogen and if there is not enough ventilation, a careless guy with a cigarette or just a spark can make a really powerful boom!
Hydrogen is also used as cooling means for generators because it is as effective cooler as water but doesn’t conduct electricity and doesn’t oxidize metals. But it’s very explosive. In student times, we had a introductory visit to a power plant, they were always telling us that smoking near generators is strictly prohibited because of hydrogen explosion risk.
Everything is big in Russia, even disasters 80
Anyway, the news were that (one of) the turbine houses(s) was flooded, so it must’ve been something related to them.
They were servicing one of the oil filled transformers when it blew up in the turbine hall causing the roof of the hall to collapse and flood(BBC).
Apparently it will take years to fix. Not surprisingly, they keep the stuff that might blow up away from the dam wall.
There is no chance of it collapsing according to the Russian “Minister for Emergency Situations”.
As I wrote before i had some doubts if it was transformer explosion. If you watch carefully, transformers are in fact between main hall and dam wall. Generators are under the level of main hall. If transformer exploded, main hall might be destroyed but generators would remain intact. And nowhere signs of transformer fire. But it looks to me that blast wave came from inside the hall, one turbine looks completely destroyed, in 3rd photo, brown metal part among debris is definitely a part of generator stator.
Russia must have a real power shortage problem if this plant is shut down, 6.4GW is enormous power! After Chernobyl accident happened in 1986, the Soviets kept 4 remaining reactors running despite radiation and health dangers because Chernobyl was producing 4GW and there was no other way to cover that demand from other plants. So what are they going to do now?
“Only” 3 out of ten turbines were shut/affected by this - the others are in different rooms/houses.
wow the video was excellent
Wow we heard about the in the USA, but the damage looks much worse than what we first heard.
Look neat though
That’s no ordinary accidental explosion. It was likely caused by the Religion of Pieces…
I would love to pressure-wash the side of that.
Its sad. Keep faith and many warm greetings from warsaw.
COOL!!!!!!!!!!!
Another STALKER game in the Making!!!!!!!!
Now the Ukrainian Game Companies can profit of yet another
catastrophe…
(they given tours yet?)
It was so-called “water impact” - abrupt increase of the water pressure up to 50 bars. hydrodynamic shock wave
This was a catostrophic overspeed of the water turbine. They or someone authorized a overspeed test of the water turbine, and they circumvented the safety features of the turbine to attain an over speed. The problem is the safety was exceeded and the turbine got more than it could handle and you can see for yourself. Tons of turbine wheen penetrating the shell followed by million of gallons of uncontrolled water following the hole left by the existed water turbine.
Goes to show what can happen when you don’t plan better on testing of equipment, and shave responsibility off of the operators. Management probably forced the operators to circumvent the control switches and other features to protect the equipment and you can see the end result.
Exactly like Chernobyl disaster, it was the same situation, they were doing experiment stressing their machines beyond their limits, they were just messing around without having exact knowledge of what they were doing and they were circumventing safety devices thinking that some idiot engineers put them because they had nothing better to do in their life. And in both cases, result was the same.
When Russians (and the whole world) are going to study their lesson, that power plants are not toys to play with?
This accident is very sad, those poor people and there families. May the Good Lord have mercy on all those involved.
Do you know for sure that it was an over speed test? Do you suppose they were checking the bearings for wear or maybe to see if the rotor was still in proper balance? Is it possible they wanted to find out if they could push the limits of the generator to a higher output. I cant see how you could do such a test without accepting the fact the rotor could or would
fly apart. Either way what would be the point in such a test.?
It would be interesting to read a comment from an engineer, if you are not one yourself.
It’s completely useless to over-speed generators as they always run at constant and precisely controlled speed in order to be synchronized with electricity network. When generators are connected with network, they keep synchronized but if for some reason they get disconnected, they will start revving up and it’s a matter of safety devices to turn off turbine power (water flow in our case) and keep speed under control. It’s similar to shifting to neutral gear in car while driving in full throttle, engine will rev up in just 1 second, if you are not quick enough to release gas pedal!
So if over-speed was the cause, i may guess that they were testing disconnection under full load or it happened accidentally and safety devices didn’t act as they should. I’ve also read another possible cause about water over-pressure which i don’t know what is and how it happened. Whatever the cause, doesn’t change the fact that lives were lost…
P.S.1: I’m electrical engineer
P.S.2: Sorry for these long technical analysis, it’s over, I promise! You may continue trolling about drunk russians!
Love your posts!!
When one makes bad things to others endlesly, sometimes he can encounter the same thing from others
Actually Megatron escaped from there after Starscream blew it up:))))
no wonder you yanks are targets for terrorists
911 was the happiest day of my life
I am very sorry for the family’s off the people who where killed and ingured.
Based oon published comments and the photos, my guess:
1. working on transformer or electrical gear. some mistake caused the transformer or controls to trip offline and possibly causing a short or very high currents( thus the explosion).
2. this causes the turbine to overspeed, since the load is removed.
3. something failed or was “not in Service” in the turbine controls. these controls should have automatically and slowly shut off the water flow.
4. the water flow was stopped suddenly causing a water hammer surge.
5. this caused the piping or turbine body failure, releasing the full force of the reservoir pressure. creating the damage to the generator and structure
6. this flooded the building, blowing out the walls, roof, etc.
there was a large oil release traveling down river, based on the reports. This would be bearing oil and possibly transformer oil.
Flow of water most likely was stopped by closing the gate on the upstream face of the dam.
Thank you English-Russia for everything !
I do suspect also something connected with hydrogen.
BUT look at that mess ! Look on Wikipedia for the history of other failures in that plant. Put it together with all the details about the Chernobyl catastrophe (anyone knows anything about the Kyshtym disaster ?) and you will have only one conclusion: STALIN is alive ! Old russian habits regarding WHO must lead (in full resposability) are still working. The giant with clay feet ! Nothing new.
I agree with djack’s theory, overall. With one minor variation:
1. Work on electrical systems while generator was at full load, with small accident causing sudden disconnect of load on generator. MAYBE the transformer ‘blew up’, but for all we know the story about an explosion was just due to people seeing the devastation afterwards. Did anyone in the turbine hall survive?
2. Turbine very rapidly went overspeed.
3. Some cascade of events resulted in both the generator shattering, and the penstock regulation valve to shut suddenly, rather than in a controlled way to limit the overspeed. Maybe the generator disintegrated first, and destroyed the valve control gear? Or maybe the electrical fault/transformer explosion did it.
4. Water hammer overpressure smashed the penstock and or the regulator valve.
5. Released high-flow water with full dam-height head of pressure did the rest of the destruction. How many hundred feet high is the water behind that dam?
An alternative is that after the electrical failure, the valve did not operate at all, the suddenly unloaded generator revved up until it disintegrated and ripped the turbine rotor out with it. Thus releasing uncontrolled water flow into the turbine hall. The pictures showing the generator rotor sitting skew, with part of the turbine core visible suggest this. If the penstock regulator valve was still intact but open after the accident, that would indicate this sequence. But the valve is usually only a short distance from the turbine - maybe it was all destroyed anyway. It’s not visible in these pics. It would be below the floor we see, and closer to the dam wall.
I wonder how long it took them to get the intake gates closed? They are luck they _could_ close them. Sometimes these rarely used backup safety things get neglected.
I’m an electronics engineer, not a power engineer btw.
so sad
I’d like to make this story just a bit more clear.
“… after the forceful shock (of undetermined cause) the 2th (of 10) hydro-aggregate(turbine) was destructed as well as, partly, the machinery hall. 7th and 9th hydro-aggregates are also seriously damaged. The machinery hall was fully sunken.
75 people died in this catastrophe, 14 saved.”
“The causes of the accident on the Sayano-Shyshenskaya hidroelectrical plant were defects
of projecting and violations in exploitation as well as protection systems failure - said
the headman of RosThekhNadzor (Russian technical supervision).”
This is official part. Unofficial will come later.. maybe..
The main versions of the cause of the 2nd turbine destruction were:
- hydro shock on a stopped turbine (now denied)
- working turbine destruction as a result of unacceptable vibration started (or other causes).
Also here’s an interesting link to the RusHydro company site news.
march 23, 2009.
“Hydro-turbine №2 of the Sayano-Shyshenskaya hidroelectrical plant is operating again.
After the repair, which lasted 2 months, the №2 turbine engaged in exploitation.
The specifics of this repair was that, except the replacement of the thechnology automatics devices,
also the column of electrohidraulic rotation speed regulator was replaced for the 1st time on…
12 march, according the special complex program, there started the test of the new control system …
which finished successfully…”
P.S. this news message is old, note the date.
P.S. this news message is old, note the date. So that repair was prior to disaster.
TerraHertz:
Here are the plant’s specs
http://en.wikipedia.org/wiki/Sayano–Shushenskaya_hydroelectric_power_station
here’s the video of the 1st minutes after the turbine destruction. The only explosions there are flashes at other turbine
and then strong clap some time after that.
http://mreporter.ru/ReporterMessages!viewReport.do?reportid=24870
Just a little clarification.
There wasn’t any overspeed tests of course, this would be just a suicide. But the blown up turbine was “problematic”
which was well known by engineers and other people working there as well as the higher management. It was engaged as a result of urgent need of power regulation(this story is unclear though). Engineers ever knew all and did all they had to, but did business oligarchs care?
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