Analysis of Accidents and Incidents What Happened at Nuclear Power Plants in Russia from 1992 to 2019

Abstract

The article discusses emergencies that occurred at nuclear power plants in the Russian Federation for the period from 1992 to 2019. In the work, a systematic and statistical analysis was carried out, the number of emergency events was counted, the nuclear power plants at which accidents and incidents occurred, the year of occurrence of the emergency event was indicated, the main objects, the causes of emergencies were identified, the types of reactors at which accidents often occurred were identified, conclusions are drawn.

Emergency events that occurred at RBMK nuclear reactors

“…The second accident occurred on November 30, 1975 at the same NPP, due to a technical malfunction, the technological channel at the first RBMK power unit collapsed, which led to an emergency shutdown and the release of radioactive isotopes into the atmosphere. The third accident was noticed on September 9, 1982 at the Chernobyl nuclear power plant, which was associated with the depressurization of the technological channel of the RBMK reactor, which led to its emergency shutdown with the release of radioactive substances of the radiation dose up to 0.05 sievert (Sv), which further required special work to clean up the territory to its initial state [1,4,5]. The fourth accident occurred on February 27, 1983, also at the Chernobyl nuclear power plant, due to a technical malfunction, a guillotine rupture of the RBMK-1000 technological channel occurred.…”

“…The doses received by residents evacuated from heavily polluted areas reached 33 mSv. The doses accumulated over the years after the accident are estimated from 10 to 50 mSv [4][5]. The seventh accident was registered on March 28, 1988 at the Ignalina NPP, due to the fault of the personnel, damage occurred to the drainage pipeline and the pipeline system for the exhaust steam of the turbine at the first RBMK-1500 power unit.…”

“…The third incident was noticed on February 12, 2008 at the Leningrad NPP, due to the ingress of water into the stator winding of the electric motor, a short circuit occurred, which led to the activation of emergency protection at the fourth RBMK power unit, the consequences of what happened led to an emergency decrease in reactor power [2]. The fourth incident occurred on February 18, 2018 at the Kursk NPP, for unknown reasons, a transformer for the station's own needs caught fire, which led to the shutdown of the fourth RBMK power unit [4][5][6][7][8][9][10].…”

“…The work carried out a systematic and statistical analysis of emergency situations: accidents, incidents that occurred at RBMK reactors. Emergency materials were taken from sources [1,[4][5][6][7][8][9][10]. When analyzing statistical data, the following programs were used: Microsoft Excel, Microsoft Word.…”