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Ukraine drones hit Zaporizhzhia nuclear plant

IAEA Director General Rafael Grossi has warned both sides to refrain from actions that “jeopardise nuclear safety”, according to Al Jazeera…reports Asian Lite News

The dome above a shutdown reactor at the Russian-controlled Zaporizhzhia nuclear station was struck by Ukraine on Sunday, the plant’s Russian-installed administration said, according to Al Jazeera.
It was not immediately clear what weapon was used in the strike on Sunday. The Russian state-owned nuclear agency Rosatom, however, said that it was a drone attack at the nuclear plant, which was taken over by Russian forces shortly after their full-scale invasion of Ukraine in 2022.

According to plant officials, radiation levels were normal and there was no significant damage following the attack. However, Rosatom later reported that three individuals had been hurt, particularly as a result of a drone hit close to the canteen on the site. The International Atomic Energy Agency (IAEA), which has its experts on the site, informed that the Russian-run plant had come under a drone attack.

IAEA Director General Rafael Grossi has warned both sides to refrain from actions that “jeopardise nuclear safety”, according to Al Jazeera.
The largest nuclear power station in Europe, Zaporizhzhia nuclear station comprises six uranium-235 water-cooled and water-moderated VVER-1000 V-320 reactors designed by the Soviet Union. The facility also houses spent nuclear fuel.According to the plant’s administration, reactors number one, two, five, and six are in cold shutdown, reactor number three is shut down for maintenance, and reactor number four is in what is known as “hot shutdown,” reported Al Jazeera.

The facility is still near the front lines, and Russia and Ukraine have both frequently charged one another with assaulting it and so raising the possibility of a nuclear accident. (ANI)

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Critical Systems Test For Kudankulam Nuclear Plant Underwent in Russia

At the same time, testing of automated leakage detection subsystems for Units 3 and 4 was completed, the Russian company said…reports Asian Lite News

Critical systems of the upcoming third and fourth 1,000 MW nuclear power plants at Kudankulam were tested by Russia’s integrated atomic power player Rosatom State Corporation in Russia with representatives of Nuclear Power Corporation of India Ltd (NPCIL).

According to Rosatom, the In-Core Instrumentation System (ICIS) and System for Integrated Analysis (SIA) for the Unit 3 at Kudankulam were tested by Rusatom Automated Control Systems JSC (RASU JSC, a company of Rosatom) together with representatives of NPCIL.

At the same time, testing of automated leakage detection subsystems for Units 3 and 4 was completed, the Russian company said.

Acceptance tests and comprehensive integration tests were carried out at the site of the manufacturer, Specialized Scientific Research Institute for Instrumentation Engineering (SNIIP JSC, a company under the management of RASU JSC).

The ICIS is an important part of the Instrumentation and Control System, and the main element ensuring the monitoring of nuclear fuel and reactor safety parameters. The system monitors power density fields, temperature fields, and keeps track of process parameters in different operating modes of the reactor, including abnormal situations.

According to Rosatom, ICIS and SIA were the first subsystems to receive a confirmation of readiness. Equipment within these systems ensures acquisition, analysis and transmission of information on the reactor state to the Main Control Room (MCR).

After that, leakage monitoring systems were tested together with NPCIL representatives.

Following the tests, the equipment will be shipped to India before the end of 2023.

“All these subsystems are part of MCDS — reactor monitoring, control and diagnostic system. They ensure monitoring and control of the reactor plant in different operating modes, and have a project-specific design that takes into account technical features of the future power unit and the customer’s requirements,” said Dmitry Kukushkin, Head of Kudankulam NPP I&C Project Office, RASU JSC.

Similar equipment developed together with NRC Kurchatov Institute was installed at Units 1 and 2 almost 20 years ago, and it has been operating without any issues, Rosatom said.

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