Stations and projects. New power unit of Novovoronezh NPP put into commercial operation

News

17 April 2019
Novovoronezh NPP became the winner of the competition for the best socially oriented company
Novovoronezh NPP (NVNPP) became the best in the nomination "Promoting the development of charitable activities citizens and organizations” of the annual competition held by the Ministry of Energy of the Russian Federation.

15 April 2019
Novovoronezh NPP-2: power unit No. 1 shut down for scheduled preventive maintenance
On April 15, 2019, at 04:30, power unit No. 1 of Novovoronezh NPP-2 (unit No. 6 of NVNPP) was shut down for scheduled preventive maintenance (PPR). According to the schedule, the PPR will last 60 days, until June 13, 2019.

NOVOVORONEZH NPP

Location: near Novovoronezh (Voronezh region)
Reactor type: VVER-440, VVER-1000, VVER-1200
Number of power units: 3

Novovoronezh NPP is one of the oldest nuclear power enterprises in the Russian Federation and largest manufacturer electrical energy Voronezh region. It provides about 85% of the needs of the Voronezh region in electrical energy, up to 90% of the needs of the city of Novovoronezh in heat. Novovoronezh NPP supplies energy to more than 20 large enterprises and 2.3 million inhabitants of the Central Black Earth region.

With the launch on September 30, 1964 of NV NPP power unit No. 1, the countdown began in the history of the formation of industrial nuclear power not only in Russia, but also in a number of countries in Eastern and Central Europe. This is the first nuclear power plant in Russia with water-cooled power reactors (VVER). In total, 6 power units with VVER-type reactors were built and put into operation at the Novovoronezh site. Each of the currently operating power units is the lead - the prototype of serial pressurized water reactors: VVER-440 and VVER-1000.

The station was built in three stages: the first - power units No. 1 (VVER-210 - in 1964), No. 2 (VVER-365 - in 1969), the second - power units No. 3 and No. 4 (VVER-440 - in 1971 and 1972), the third - power unit No. 5 (VVER-1000 - in 1980). In 1984, after 20 years of operation, power unit No. 1 was decommissioned, and in 1990, power unit No. 2, and in 2016, power unit No. 3. There are currently three power units in operation. Since 1995, Novovoronezh NPP has been carrying out a stage-by-stage modernization of power units to bring them in line with modern safety standards. For the first time in Europe, power units No. 3 and No. 4 underwent a unique set of works to extend their service life by 15 years (until 2016 and 2017, respectively), and obtained the appropriate licenses from Rostekhnadzor.

Life extension of VVER-1000 type reactors has become a new task for Novovoronezh NPP employees. In 2003 - 2007, a set of works was carried out to assess the technical feasibility, safety and economic feasibility of extending the life of the power unit. As a result, it was found that the non-replaceable equipment of the unit has residual resource and can be used. In 2010, we started implementing investment project"Extension of the operating life of power unit No. 5". On September 18, 2011, after a large-scale modernization, testing of newly installed systems and equipment, the first million-plus unit in Russia with a VVER reactor was put into operation again. An unprecedented amount of major work was carried out, as a result, power unit No. 5 of the Novovoronezh NPP fully complies with modern Russian standards safety and IAEA recommendations and belongs to the third, most modern generation, and the additional period of its operation has increased by 25-30 years.

Since 2007, the construction of two power units - No. 6 and No. 7 of the new one, with a VVER-1200 reactor plant, has been underway at the NV NPP site.

On February 27, 2017, power unit No. 1 of Novovoronezh NPP-2 (unit No. 6 of NV NPP) was put into commercial operation.

The distance from the nuclear power plant to the city of Novovoronezh is 3.5 km; to the regional center (Voronezh) - 45 km.

OPERATING POWER UNITS OF NOVOVORONEZH NPP

The new, first power unit of Novovoronezh NPP-2 is the most powerful unit in nuclear power The Russian Federation is included in the Russian energy system and began to issue the first kilowatt-hours of electricity into it.

The inclusion in the network of the world's first nuclear power unit built according to "post-Fukushima" safety technologies is one of the most important events for the Russian nuclear industry for last years, the press service of Rosenergoatom Concern JSC says.

This power unit, the physical start-up of which took place in May this year, was built according to Russian project"AES-2006" with a VVER-1200 reactor plant with an installed electrical capacity of 1200 megawatts. It belongs to nuclear power units of the "3+" generation with improved technical and economic indicators, corresponding to the most modern requirements reliability and safety. The unit is provided with additional passive safety systems that do not require the intervention of the nuclear power plant personnel in the event of an accident. emergency, and do not allow its development.

"On August 5, 2016, the innovative 3+ generation power unit of the Novovoronezh NPP was connected to the grid and delivered the first 240 MW to the country's energy system. At 03:35 Moscow time, one of the most important and responsible operations at the power start-up stage - the first test connection of the generator to the network was successfully carried out," the message says.

This was preceded by a turbine push (reaching the planned idle speed of the turbine generator rotors), testing its operation at idle. Specialists carried out a large complex of checks and tests on various stages power development, as well as testing and revision of various equipment - all the activities necessary to confirm the reliability and safety of the power unit during its further operation.

“This event is our great victory, which crowns a huge amount of work related to the installation, adjustment of equipment, and complex preparatory operations. We can state the fact that all works are performed reliably and safely. The personnel who manage the unit clearly understand the process, the equipment works reliably and safely,” said, commenting on the event, CEO Rosenergoatom Concern, Andrey Petrov.

In turn, the President of NIAEP JSC Valery Limarenko noted: “Rosatom State Corporation is the world's largest supplier of nuclear power plants in the world market. And today we have consolidated our positions. This opens up new opportunities for increasing our presence in the global market.”

Generation 3+ power units are currently being built in the USA and France. However, it was the Russian power unit No. 1 of NVNPP2 that became the world's first nuclear power unit of a new generation, which entered the power start-up stage.

The commissioning of the new power unit will increase the total capacity of the Novovoronezh nuclear power plant by 1.5 times, and will give a powerful impetus to the development of the economy of the Voronezh region. It is expected that after putting the power unit into commercial operation in the first year, additional tax revenues on property may amount to about 2 billion rubles.

It is noted that power unit No. 6 of the Novovoronezh nuclear power plant will be tentatively accepted for commercial operation at the end of 2016 after mastering 100% of the capacity and carrying out acceptance tests.

Novovoronezh NPP-2 (NVNPP-2)- a nuclear power plant under construction, located near the city of Novovoronezh, Voronezh region, and the Don River, with two power units VVER-1200/392M 1200 MW. It is planned to replace the gradually closing capacities of the Novovoronezh NPP with a new nuclear power plant. Nuclear Power Plant is being constructed according to the AES-2006 project developed by JSC Atomenergoproekt.

Power unit No. 1 of Novovoronezh NPP-2 (No. 6 of Novovoronezh NPP) is at the power start-up stage.

According to federal media reports and the official version, on November 11, the sixth unit was simply disconnected from the network at the nuclear power plant in Novovoronezh due to the failure of the electric generator. However, in the local media and social networks they write about a loud bang and a “torn turbine shop”.

The sixth block of the Novovoronezh NPP of the "3+" generation is the most powerful in Russia and the first in the world NPP block built according to "post-Fukushima" safety technologies. The station is located on the banks of the Don River, 42 kilometers from Voronezh. Unit 6 was brought to the 100% operational level on October 26 of this year.

The incident, which occurred on the night of November 10-11, was simply called "a unit shutdown due to a generator failure" in the federal media.

During the tests of power unit No. 6 of the NVNPP, an electric generator failed, which led to the power unit being disconnected from the network. At the moment, work is underway to find and eliminate defects, after which the test program will be continued, RIA Novosti quotes a message from representatives of the station.

Alarms on every car in the area were blaring for at least a quarter of an hour. At the 6th block in the turbine shop, a generator burned out, which cannot be restored. The transformer also exploded, the electrician burned out. Dismantling will now require a huge amount of money, all commissions are working at the station, the situation is emergency, - an unnamed eyewitness told the Notebook Voronezh publication.

The sound of the explosion, which was heard by local residents, was explained by representatives of the nuclear power plant by the fact that “when the electric generator and turbine are turned off, the systems are activated, the main function of which is to prevent the steam pressure in front of the turbine from increasing beyond the allowable limit. The reason for the loud sound was the sudden opening of the valves, with the help of which the pressure is reduced.

The source of "Notebook" said that "the turbine hall is dilapidated", and huge funds will be required to restore it.

Experts are surprised that "the most powerful block in Russia" has worked for only two weeks since its launch.

If this is true and the most reliable power unit, according to Rosatom, was able to operate at full load for only two weeks, this may greatly puzzle foreign customers of similar power units in Belarus, Finland and Turkey. In general, we are all lucky so far that the first accident at the power unit with the VVER-1200 reactor of the experimental model "AES-2006" occurred in the electrical, and not in the reactor part, and did not seem to lead to the release of radioactive substances into environment, - said nuclear physicist Andrey Ozharovsky to the publication "Activatika".

The publication emphasizes that the federal media began to write about the incident at the nuclear power plant only a week later, "while residents and local websites discussed the incident with great concern."

https://www.instagram.com/p/BM6JStHg-KM/?taken-at=893770074

Some have compared the "silence" and the situation itself with the Chernobyl accident.

In addition to costly repairs, serious consequences accidents are not to be expected. The accident also did not lead to the release of radiation. When and how the sixth block will be restored is unknown.

Medialeaks previously wrote about how the residents of the village of Sosnovy Bor after the shutdown of one of the power units at the Leningrad NPP. There, a pipe broke through, through which steam circulates, which moves the turbines.

Thus, at the new power unit No. 6 of the NV NPP, the second sub-stage of power development in the course of pilot operation (PPE) has begun. OPE is the final stage before putting the unit into commercial operation.

Recall that the first inclusion of the 6th power unit in the network (energy start-up) took place on August 5, 2016. Rostekhnadzor's permission to put the 6th unit into pilot operation was received by NV NPP on September 9 this year. After that, testing of the operation of the unit equipment in various modes at 50% power began. From this moment on, within 145 days, the development of its capacity will continue up to the nominal (design) level of 100%.

Now the equipment of power unit No. 6 is being tested at a power level of 75%. After reaching each power threshold, the unit is subject to scheduled tests with load shedding. The work is proceeding as usual, there are no deviations from the plan.

In general, pilot operation is part of the complex of works for putting the NPP unit into operation and is divided into the following sub-stages:

· continuation of the development of the power level of 50% (sub-stage 1);

· mastering the power level of 75% (sub-stage 2);

development of nominal power (sub-stage 3, includes testing stages at power levels of 90 and 100%);

· commissioning tests of the power unit and its acceptance for commercial operation (sub-stage 4).

The OPE stage will end after successful tests at all mastered power levels, including the nominal one, and after completion of all commissioning tests of the power unit. And unit No. 6 will be put into commercial operation in December 2016. According to experts, this will increase the total capacity of NV NPP by 1.5 times, which will contribute to the development of the economy of the Voronezh region.

Generation 3+ power units are also being built in the USA and France. However, it was the Russian block No. 6 of the NV NPP that became the world's first nuclear power unit of a new generation, which entered the stage of pilot operation.

Novovoronezh NPP is a branch of Rosenergoatom Concern JSC. The station is located on the river bank. Don 42 km south of Voronezh. This is the first nuclear power plant in Russia with VVER-type reactors (pressurized pressurized pressurized water reactors). Each of the station's five reactors is the main one - a prototype of serial power reactors. The first power unit was launched in 1964, the second in 1969, the third in 1971, the fourth in 1972, and the fifth in 1980.

There are currently three power units in operation (power units Nos. 1 and 2 were shut down in 1984 and 1990, respectively).

Since 2007, the construction of innovative power units Nos. 6 and 7 under the AES-2006 project with a capacity of 1200 MW each has been underway at the Novovoronezh NPP site.

Construction and installation work is underway at power unit No. 7.

Power unit No. 6 will be tentatively put into commercial operation at the end of 2016 after 100% of the capacity has been mastered and acceptance tests have been carried out.

Operational information on the radiation situation near Russian NPPs and other facilities of the nuclear industry is available on the website .

Information and Public Relations Department of Novovoronezh NPP

Nuclear power plants continue to keep the inhabitants of the territories adjacent to them in fear.

It's bad, of course, that the brand new generator burned out after only 15 days, but it's good that only he burned out. And there was no explosion. If, of course, this is so. Why if? Because there is not much confidence in those who report an incident at a nuclear power plant after they have been in the dark with information for a whole working week. If everything is not so dangerous, then why hide it?

The text of this news on the website of the Novovoronezh NPP includes a photo of the turbine hall - whole and unharmed. Apparently, as a disgrace to those eyewitnesses who panicked and told the local newspaper about the explosion, which "turned the turbine shop around." Date below the photo: November 16, 2016. Surely skeptics thought: maybe this photo was taken before the incident?

The "explosive" incident happened on the night of November 10-11, but a message about it appeared on the NPP website only on the 16th in the afternoon. At the same time, two days earlier, something else was reported - “power unit No. 4 of the Novovoronezh NPP was stopped for scheduled preventive repair work... "So, as if there had not been an accident even before the fourth block was stopped (they insist on this word -" accident " independent experts) on the sixth, which led to its shutdown. Through this event, which is special news for citizens, they simply “stepped over” here. There is no doubt that if it were not for the persistence of the journalists of the local newspaper, then no one would have known about this incident at the nuclear power plant.

But the main thing in this story is that the incident happened at the sixth power unit of the Novovoronezh NPP, a pioneer in a series of new units with VVER-1200 reactors, whose power is 20% higher than the old Soviet VVER-1000. (Physics and technical features which, by the way, were discussed by the Politburo of the Central Committee of the CPSU at a secret meeting a few months after the accident at the Chernobyl nuclear power plant and which it was proposed then - apparently out of fright - to stop everything altogether.) Now it is precisely these innovations that are most proud of at Rosatom and have high hopes for them . “This is the first 3+ generation unit in the world and it is a reference one, that is, similar projects will be used to build nuclear power plants in a number of other countries with which Russia has contracts,” Rosatom CEO Alexei Likhachev told reporters on October 27 this year. . “The innovative block reaching 100% capacity is a great success for Russian nuclear technologies.”

It should be said that the commissioning of this block was supposed to take place in 2012, that is, four years ago. The “nuclear” long-term construction began to produce electricity in August of this year, and by October 26 it was brought to one hundred percent capacity - in the pilot operation mode. But this miracle of modern Russian nuclear technology lasted two weeks in this mode. It is clear that the unit is going through the stage of pilot operation, which in domestic terms means testing mode. But to just two weeks and the first accident?

After all, as they all say scientific and practical conferences Russian specialists, the sixth power unit of the Novovoronezh NPP is the first in the world built according to the so-called "post-Fukushima" safety technologies. It belongs to nuclear units of the 3+ generation with improved technical and economic indicators, corresponding, according to the nuclear scientists, to the most modern requirements of reliability and safety. It is important that the unit is provided with additional passive safety systems, they advertise their brainchild, which do not require the intervention of the station personnel in the event of an emergency and do not allow its development. That is, neither Chernobyl nor Fukushima are terrible for such a nuclear power unit.

Against the backdrop of these advertising spells, I was reminded of another incident with the same new Russian reactor. It happened during the construction of the Belarusian nuclear power plant - in early July of this year. (“Rosbalt” spoke about this in detail.) There, at the construction site, they managed to drop a multi-ton colossus of the body of the nuclear reactor. At the same time, within two weeks of such a nuisance (the building could have split) from Russian nuclear scientists building a nuclear power plant for Minsk - not a gu-gu. Then the Belarusian nuclear physicist with 35 years of experience Yegor Fedyushin commented on the situation to the Lithuanian online publication Delfi: “A reactor (...) is a complex structure, there welded joints, devices inside the case. And I think unambiguously - this corps should be sent back to Volgodonsk. ... The building built there for Belarus is non-reference. (...) There is no work experience at this reactor, especially since it was manufactured in Volgodonsk, at a new production facility. You understand what a new production is. ... I would send this reactor back and request a new, reference one.

The key word here is "reference". That is, this is a reactor built and repeatedly tested in the country of origin. This means that the Russians must build, test, and modify the new reactor, and only then, after making sure of its reliability and safety, offer it to other countries. Takova world practice. It turns out that Rosatom has begun to introduce a new reactor for Belarus, a non-reference one, which has not yet been tested at home.

Moreover, the construction of several nuclear power plants with such reactors is now starting around the world (so far at the stage of excavation). In particular, in Finland ("Hanhikivi-1"). By the way, Rosatom Corporation will pay for its share in the project (34%), including with money from the National Welfare Fund. ABOUT The amount of funds from the National Welfare Fund in this project is the equivalent of 2.4 billion euros (no more than 150 billion rubles). And, by the way, the project for the construction of a nuclear power plant in Pyhäjoki is being postponed again, as the relevant documentation of the Russian nuclear scientists was not provided to the Finnish authorities on time, the Minister told reporters at the end of October economic development this country. (I note that there is still no license for the construction of a nuclear power plant, and the construction itself is scheduled for 2018.)

Another station with four innovative reactors - Akkuyu NPP - is planned to be built in Turkey on the Mediterranean coast in the province of Mersin, the Turks have high hopes for it. The initial work has already begun. And a dozen more blocks for potential partners are being designed. Moreover, there is no new tested (“reference”) and stably operating VVER-1200 anywhere, including Russia, where its testing has just begun. Isn't it strange - from the point of view of both logic and, most importantly, security.

The world's best sixth power unit of the Novovoronezh NPP of the 3+ generation will be put into commercial operation, as the nuclear scientists themselves say, "will be tentatively accepted at the end of 2016 after mastering 100% of the capacity and carrying out acceptance tests." That is, testing of the "world's most reliable reactor" has not yet passed, and units with it are already planned for construction in other countries. Apparently, this is main reason why in Voronezh and in Moscow they so wanted to hush up this incident. After all, such news will not cause enthusiasm among partners. Quite the contrary, it's an unfavorable question.

Persistent journalists from the Bloknot Voronezh newspaper made a request to the director of the nuclear power plant, Vladimir Povarov, about what had happened and received an answer: “During the testing of power unit No. 6 of the NVNPP, an electric generator failed, which led to the power unit being disconnected from the network. At the moment, work is underway to find and eliminate defects ... "And regarding the loud explosion, the following was explained:" When the electric generator and turbine are turned off, systems are activated, the main function of which is to prevent the increase in steam pressure in front of the turbine in excess of the allowable. The reason for the loud sound was the sudden opening of the valves, with the help of which the pressure is reduced. How long it will take to fix the problem (repair or replacement of the electric generator) and when the testing of the new unit will continue, the management of the nuclear power plant has not yet reported. Experts agree that it would be good to keep within six months.