Balgarianovinite.com Radiation conditions at the Kozloduy Nuclear Power Plant site were unchanged and were expected to remain so, the Nuclear Regulatory Agency said here on Friday, after information circulated about a fault in Unit 6’s secondary circuit.
The agency was notified of the case as part of its daily communication with Kozloduy NPP.
The activation of the devices was unrelated to the unit’s safety. There was no change and none was expected in radiation conditions at the Kozloduy NPP site, the agency added.
Unit 6 was reconnected to the power grid at 10:54 on December 16, 2025, after it had been taken offline as a precaution the previous day to replace a faulty protective device. It was then found that a protective diaphragm device on the turbine’s moisture separator reheater needed to be replaced; it is located in the unit’s conventional, non-nuclear part.
The annual overhaul of Kozloduy NPP’s Unit 6 ended on December 1, 2025. During the scheduled maintenance, which began on October 25, 2025, systems and equipment underwent preventive checks and technical servicing, along with all activities set out in the annual maintenance programme. The reactor was refuelled with fresh nuclear fuel for the 31st fuel cycle.
Kozloduy Nuclear Power Plant’s Unit 6 completed its annual maintenance on December 1, 2025, after being taken offline on October 25, 2025, and returned to the grid following an inspection and positive assessment by the Nuclear Regulatory Agency, the plant said. The overhaul included preventive checks and servicing, long-term operation measures, and refuelling for the unit’s 31st fuel campaign; output is increased in stages under technological requirements, while Unit 5 operates to schedule.
In the summer of 2025, Unit 6 was temporarily shut down for planned work linked to a coolant/heat-transfer-fluid leak in the third steam generator; the plant said monitoring remained well below regulatory limits and there was no change in radiation levels on site. Unit 6 was reconnected to the power grid on August 5, 2025, after repairs and testing. K-NPP Radiation Unchanged After Unit 6 Fault Report 2025 THE NEWS FROM BULGARIA – NEWS AGENCY 2009-2025 2025-12-19 16:30:39 Latest news World news Country news Most important news latest news most important latest of the day Justice Petar Nizamov Feathers Petar Nizamov- Feathers Justice bg iustitia.bg iustitia iusticia usticia investigation Burgas Bulgaria news news of the last hour news of the day news of today Bulgaria news The news from Bulgaria blitz news top news most important most commented latest news Boyko Borisov news weather coronavirus news news weather facebook youtube facebook instagram news today news of the last minutes news today today news news bg news leading news hot news bg news site for news all news news bg news of the last hour latest latest news bg news of today news today news today news of the last hour latest news today news bg news news 24 hours news vesti bg novini news world bird bg bivol bg bivol trud bg novini latest news today novinite bg news hello bulgaria political party coat of arms delyan peevski scandalous Bulgarian National Television Free Europe Television scandal exclusive live tv live right now tv tv online tv program bg live now tv news online tv online live court Burgas court Burgas district court Burgas court Burgas district court Burgas district court Burgas appellate court Burgas prosecutor Burgas prosecutor’s office Burgas district prosecutor’s office Burgas district prosecutor’s office Burgas district prosecutor’s office Burgas district prosecutor’s office Burgas district prosecutor’s office Burgas district prosecutor’s office Prosecutor General Ivan Geshev Prosecutor Geshev Tsatsarov Ministry of Internal Affairs Burgas ODMR Burgas ODPR Burgas police Burgas district police Burgas prosecutor Tsatsarov SGS cases Varna court chairman of the SGS court decisions on civil cases decisions on cases Plovdiv court decision of the court decisions cases Varna court criminal cases district district court decisions work in the court SGS chairman of the SGS judges Sofia court post judges Plovdiv court Plovdiv judges Plovdiv Supreme Court Inspectorate Supreme Court Supreme Judicial Council lawyer lawyer criminal cases lawyer civil cases lawyer marriage cases lawyer administrative criminal law criminal process civil law civil process administrative law constitutional law