Automatics shut off 6 unit Zaporozhye NPP

Ukraine is among the leaders in the number of unplanned outages of NPP units among all states with nuclear power. It became known that this time the automatics that had been tripped turned off one of the power units of the Zaporizhzhya NPP. Station Press Service сообщает:

18 April 2017 of the year in 19 hours 52 minutes power unit №6 Zaporizhzhya NPP automation action is disconnected from the network. The reasons for the operation of automation are being investigated.

It is reported that at the moment at the Zaporozhye nuclear power plant are working 4 power unit with a total capacity of about 3,42 GW.

According to the press service of ZAES, the background radiation at the station is normal:

The radiation background in the area of ​​the Zaporozhye NPP location and in the sanitary protection zone (the area around the NPP with a radius of 2,5 km) is 8-12 microroentgen per hour, which corresponds to the natural radiation background.

It is noteworthy that a few days before the incident, the ZNPP inspectorate was visited by a commission led by the chairman of the World Association of Nuclear Power Operators, Jacques Regaldo. The president of the Ukrainian Energoatom, Yury Nedashkovsky, also came to the station. The official reason for the inspection is stated as follows: familiarization with the infrastructure and the emergency preparedness and response system at ZNPP and the procedures for interaction with the State Nuclear Regulatory Inspectorate and state authorities in the event of crisis situations.

Comments

[The black]

Good governance ukrovermahta not end ... and will, unfortunately, sad everyone ...

[Andrey Yuryevich]

Troubles of Zaporizhzhya NPP To determine the reliability of a complex technical system, specialists, as a rule, use such a thing as MTBF. This parameter is understandable and means the time interval between the occurrence of emergency situations. The following is a list of emergencies at Ukrainian nuclear power plants since the fall of the year before last. For example, it is best to take the most powerful station, Zaporizhzhya, although the situation is not better on others. 29.11.14 - The 3rd power unit for the fourth time in 2014 was turned off in emergency mode due to a short circuit. 28.12.14/6/18.07.15 - Block No. 11.04.16 is out of order, the generator is damaged. 6/02.05.16/4 - the first block is turned off, emergency protection of the electric drive of the pump, cooling the active circuit, has worked. 18.05.16/4/2016 - The 6th power unit is turned off, there was a depressurization of the gas system of the turbogenerator. 24/6179/XNUMX - The XNUMXth power unit is turned off, the reason is the same. XNUMX/XNUMX/XNUMX - again the XNUMXth block, this time the arrester of one of the phases of the transformer failed. - Read more on FB.ru: http://fb.ru/news/environment/XNUMX/XNUMX/XNUMX/XNUMX

[evil partisan]

Quote: Andrey Yurievich

MTBF

Andryukha. This parameter (MTBF) is applicable to technical devices that operate in the normal mode while in the so-called “reliability plateau”. Those. if the technical device is in the middle of its "life path" and it is still a long way to resource development. In this case, we have a different situation. Namely: the resource of NPP units is constantly being extended and they are in the last third of the reliability schedule. So: the term "MTBF" is not applicable here. This is where the failure situation is not predictable in terms of quantity and time. I studied the theory of reliability for a very long time, but something like that ...
Hi, amateur from fishing retirement age with a metallurgical bias in nuclear energy!

[Topotun]

I would also add games with maneuvering the power of the reactor here ....

[sharp-lad]

And he wrote that the operating time was over, there was only a failure.

[Thirteenth]

Apparently the automation is not Svidomo, but native, Soviet, working and working as expected.
We’ll meet until the victory threshed, until everything went to hell)))

[drunkram]

This news came after the news that 5 out of 6 TPPs are going to drown in Ukraine, I think not for nothing.
They play out with their constant changes in power at nuclear power plants.

[210ox]

Automation has worked .. There are hundreds of such situations around the world. What's the news? Now, if it hadn’t worked, then it’s bad ..

[The black]

Quote: 210ox

Automation has worked .. There are hundreds of such situations around the world. What's the news? Now, if it hadn’t worked, then it’s bad ..

Of course, it’s good that it worked .... but something led to this situation .... and there have been more and more such situations lately. Overloading nuclear fuel is not a joke, and even if the fuel is not native

[Kenneth]

You comment as a specialist in nuclear energy or as a layman who has listened to propaganda.

[210ox]

12 years of work in the electric power industry "Smolenskenergo" ..

Quote: Kenneth

You comment as a specialist in nuclear energy or as a layman who has listened to propaganda.

[Topotun]

And here is propaganda? The fact that the number of failures at nuclear power plants has increased dramatically is a fact. The fact that experiments are conducted on the "dynamic" control of reactor power is a fact. Although the reactors themselves are not designed for this. The fact that the equipment is worn out is the same fact.

[svp67]

Quote: 210ox

Automation has worked .. There are hundreds of such situations around the world. What's the news? Now, if it hadn’t worked, then it’s bad ..

And bad for three reasons
- This began to happen at Ukrainian nuclear power plants with unenviable regularity. The Ukrainian side submits very vague reports on these incidents to the IAEA
-Because of the decline in operating TPPs, which, thanks to their design, allowed to smoothly reduce and increase the supply of electricity to a single network, if necessary, NPP operators now have to do this. This leads to deterioration and premature failure of many equipment manufactured in Russia and which are not being bought now, but are being repaired on their own. And what will they do there ?????
- At this power plant we replaced our "atomic batteries" with American ones, to which there have already been many complaints.
All this suggests that in the center of Europe appeared "atomic bomb"

[210ox]

You are right in terms of maneuvering power. NPPs do not work in "peak mode". For this, there are thermal power plants. And as for the Amerz fuel assemblies, I think they will succeed in replacing our assemblies. Whatever we say here, Westinghouse is a serious company and tested all over the world. Despite all their troubles.

Quote: svp67

Quote: 210ox

Automation has worked .. There are hundreds of such situations around the world. What's the news? Now, if it hadn’t worked, then it’s bad ..

And bad for three reasons
- This began to happen at Ukrainian nuclear power plants with unenviable regularity. The Ukrainian side submits very vague reports on these incidents to the IAEA
-Because of the decline in operating TPPs, which, thanks to their design, allowed to smoothly reduce and increase the supply of electricity to a single network, if necessary, NPP operators now have to do this. Which leads to wear and premature failure of many equipment. Which was produced on the territory of Russia and which is not being bought now, but being repaired on its own. And what will they do there ?????
- At this power plant we replaced our "atomic batteries" with American ones, to which there have already been many complaints.
All this suggests that in the center of Europe appeared "atomic bomb"

[svp67]

Quote: 210ox

And as for the Amerz fuel assemblies, I think they will succeed in replacing our assembly. Whatever we say here, Westinghouse is a serious and proven company all over the world. Despite all their troubles.

I don’t doubt that the company is serious, but I managed to fully replace our “batteries” - I doubt it. Each country has its own particularities of working with nuclear fuel and they can be very critical with such a replacement. In any case, in Ukraine, most of the problems now are with the stations at which such a replacement has been made.

[Ren]

Quote: svp67

I don’t doubt that the company is serious, but I managed to fully replace our “batteries” - I doubt it.

Toshiba Board of Directors Approves Banking Bankruptcy Subsidiary of Westinghouse Electric The company sent a bankruptcy petition and documents to the US court on March 31.03.2017, 31, Westinghouse Corporation asks to protect it from creditors starting March 2017, XNUMX.
All claims for bankruptcy after the indicated date will not be accepted for consideration for compensation of any types of losses.
Those. in case of any emergency at the NPP due to the fault of the products of this company after 31.03.2017/XNUMX/XNUMX - the problems of the owner of the NPP. Negro problems - the sheriff does not care.

[svp67]

Quote: Ren

Negro problems - the sheriff does not care.

As well as the "natives" ...

[skarl]

I fundamentally disagree with you ... replacing atomic fuel with mattress fuel will not work ... in this matter you are completely incompetent and you will not mislead people ... the reactor itself must also be changed with fuel ... And what you you know the name of the company that conducts ultra-dangerous experiments around the world (including at Ukrainian nuclear power plants) just not in its own territory ... so this does not mean its competence, Russian nuclear experts have stepped far forward ... And only thanks These crazy experiments are constantly occurring emergency shutdown of power units ...

[AID.S]

Quote: skarl

which is conducting dangerous experiments all over the world (including at Ukrainian nuclear power plants) just not in its territory ...

And where will they find a Soviet reactor in the states for experiments? (This is about competencies)

[210ox]

So they found, and not one ... Tell me where?

Quote: AID.S

Quote: skarl

which is conducting dangerous experiments all over the world (including at Ukrainian nuclear power plants) just not in its territory ...

And where will they find a Soviet reactor in the states for experiments? (This is about competencies)

[AID.S]

Quote: 210ox

Tell me where?

In the states, yes, tell me where our nuclear power plants are.

[AID.S]

Quote: 210ox

Tell me where?

In the states, yes, tell me where our nuclear power plants are.

[ImPerts]

"TVEL Fuel Company of Rosatom and Vattenfall Nuclear Fuel AB (Sweden) signed a contract for the supply of nuclear fuel of TVS KVADRAT construction for Ringhals NPP (a company of the Vattenfall group, Sweden).
The contract provides for the supply of commercial transshipments of nuclear fuel starting from 2021 of the year.
The implementation of this contract will ensure the diversification of nuclear fuel supplies for Vattenfall AB. The use of new fuel will also allow the operator to improve the economy of their nuclear power plants.
The fuel company of Rosatom TVEL, thanks to this contract, enters with the commercial supply of nuclear fuel to the PWR reactor segment. This is the first commercial contract for the export of fuel of TVS KVADRAT, it opens up opportunities for TVEL JSC to expand the geography of supplies and enter other markets with fuel for PWR reactors ... "
http://www.rosatom.ru/journalist/glavnoe/toplivna
ya-kompaniya-rosatoma-tvel-podpisala-kontrakt-na-
postavku-yadernogo-topliva-tvs-kvadrat-dlya /
You can replace it.

[drunkram]

TVS-Kvadrat is a project of TVEL OJSC for the creation of fuel for nuclear reactors of western design. The TVS-Kvadrat design for PWR reactors uses uranium dioxide fuel enriched in U-235 to 5% with the addition of gadolinium. It should replace TVS-W from Westinghouse, that's right

[annodomene]

The fuel is not "atomic" but "nuclear", it is possible to replace it, it will just be necessary to revise such a parameter as physical profiling of the core (az).

[the same doctor]

If you could imagine the physics of heat engineering processes in a fuel element, you would not argue that way. The fact that it is possible to control the reaction without local melting of fuel elements is a miracle in general. The entire control and adjustment system is sharpened for our hexagon. Lay in its place a square without a radical recalculation of management methods? Either take risks, or lose power and do not burn fuel, or they have brilliant scientists there. For some reason, I think that the comrades will just stupidly risk it, leaving the Soviet system of government. I hope there will be no explosion, but some of the fuel rods will melt with primary water pollution. After that, the reactor should be covered with sand and left to dampen by cooling the reactor vessel, but ... Ukrainians will save the reactor and bring the situation to Fukushima. Where, as you know, the station’s leadership was embarrassed to owe the bosses about the loss of reactors, heroically saved their face and thereby turned the local death of a couple of reactors into a Chernobyl-type catastrophe.
.
Europe is time to take care of its security. It is not necessary to fight with Korea, but Ukrainian reactors should be controlled, so that in case of an accident they should be stopped and shut down tightly, filling the core with inert material.

[annodomene]

There are only two ways to control the NECR - regulation of the neutron power of the nuclear weapons and control of the deviation of the average temperature of the coolant. How to put them into practice is a matter of software and hardware. When depressurizing a fuel element, there is only one way - the transfer of nuclear materials into deep subcriticism ("jamming") and spilling with all available methods to remove residual heat. Sand is not the best way to do this.

[antivirus]

it is necessary to train the military police and the MTR to protect "especially dangerous facilities on the outskirts"
"children" must be protected from radiation.

[zivXP]

Lucky that the automation worked.

[annodomene]

Emergency protection (AZ) is needed for that. It remains to determine the root cause of its operation.

[AUL]

Automation worked, so something made it work! And there are two reasons:
1. Problems in controlled systems - this is shitty, which means that something fell off somewhere.
2. Problems in the automation system itself - this is even shitty, it can in this case also ruin a serviceable reactor or a malfunction!
Both options are unpleasant.

[Mar.Tirah]

Quote: 210ox

Automation has worked .. There are hundreds of such situations around the world. What's the news? Now, if it hadn’t worked, then it’s bad ..

I agree. But it will be shitty if they work on American fuel. And judging by their desire, they are going to do it.

[Tolstoevsky]

and it will happen, as the leader of one totalitarian sect used to say, the new "Chernobyl miracle"

[Mountain shooter]

Here is another smut. What can these Maidan people leave behind as a result of barbaric exploitation? Radioactive Wasteland? There is already critical wear and tear ...

[Maki Avellevich]

Quote: Mountain Shooter

What can these Maidan people leave behind as a result of barbaric exploitation? Radioactive Wasteland? There is already critical wear and tear ...

Do you say these things from professional experience and knowledge, or is it your perverse wishes?
if you have knowledge, share; if not, it’s somehow not pleasant.

[Banishing liberoids]

Maki Avellyevich-just look at what these authorities have brought to ukroin as such, and you yourself will understand that these wry-handed hand-guides if they don’t arrange new Chernobyl for only one reason, they will turn from the authorities.

[Tolstoevsky]

already soon in all

[Puss in Boots]

the saddest thing is that in the event of a serious accident, the culprit has already been appointed.

[P36M2]

No, this is not decommunization, this is ordinary crooked. After 100 years, the ruin returns to its normal state.

[Sancho_SP]

The fact that Energoatom very often neglected safety rules when choosing components for NPP repair is a well-known thing.

However, one would first have to understand what exactly caused the shutdowns and how dangerous the causes themselves were.

[avg-mgn]

They will understand (understand), but they will lie about the reasons again, and they will not correct them ..., and then in a circle.

[P36M2]

Quote: Tolstoevsky

and it will happen, as the leader of one totalitarian sect used to say, the new "Chernobyl miracle"

Waltzman chtoli?

[Alexander 3]

If automation would work and the government would be turned off, this is the event.

[novel66]

to disable this government should work automation, machine guns and grenade launchers

[Banishing liberoids]

What is it that they also tried to block the block? Did you slip the wrong section into it?

[abrakadabre]

Did you slip the wrong section into it?

Maybe even a sledgehammer.

[Geisenberg]

How many units are left?

[novel66]

it's like in a joke about the foolish and the bomb "it will explode - I still have garbage"

[san4es]

Now All hope for automation ...

... when there is no control anywhere

[Catherine II]

18 April 2017 years at 19 hours 52 minutes power unit No. 6 of Zaporizhzhya NPP was disconnected from the network by the action of automation. After removing the comments at the Dneprovskaya substation, April 18 2017 of the year at 23 hours 08 minutes Unit No. 6 of Zaporizhzhya NPP is connected to the network.
At the moment, 5 power units are in operation at the Zaporizhzhya NPP. The total capacity of the generators is 4 400 MW. There are no comments on the operation of the main equipment of the existing power units and personnel.
The radiation background in the area of ​​the Zaporozhye NPP location and in the sanitary protection zone (the area around the NPP with a radius of 2,5 km) is 8-12 microroentgen per hour, which corresponds to the natural radiation background.
http://www.npp.zp.ua/news/znpp
April 19 at Ukrainian nuclear power plants in the operation of 12 from 15 power units.

At power unit No. 3 of Zaporizhzhya NPP, 63 is the day of the average scheduled repair.

At power unit No.2 of the Rivne NPP, 16-day of the average scheduled repair.

At power unit No. 3 of the South Ukrainian NPP, the 18 day of the average scheduled repair.

April 18 2017 of the year in 19: 52 power unit No.6 of the Zaporizhzhya NPP was automatically disconnected from the power grid due to the disconnection of VL-750kV ZAES-Dneprovskaya. In 23: 08, the power unit was connected to the power grid after removing comments at the Dneprovskaya substation.
Generation control schedules are as follows: for ZAES - 4 210 MW, RAES - 2 425 MW, SUAE - 1 960 MW, KhNPP - 2 020 MW.
Over the past day, April 18, the stations generated 252,3 million kWh of electricity.
The balance limit as of 6: 00 19 on April 2017 of the year is 1 055 MW. Works with balance constraint: ZAES-5 - 80%.
Due to balance constraints over the past day, Ukrainian nuclear power plants underproduced 18,66 million kWh of electricity.
The radiation, fire and environmental conditions at the NPP industrial sites are within the normal range.
http://www.npp.zp.ua/news/naek
The systematics of the emergence of news about outages and repairs is still surprising - but there is never a news about the inclusion! About work. About the news at nuclear power plants (except for the negative, it’s just that they’re "news")
At this point, an article from the 19 number was to include full content and inclusion. But no. Only shutdown and also incomplete content.

[gloomy fox]

OH games are dangerous are morons.

[The splinter]

It seems that these seriously decided to arrange a new Chernobyl