January 02, 2018

Rosatom made the first start of the third power unit of the Tianwan Nuclear Power Plant (NPP) under construction in China. The reactor is based on a Russian VVER-1000 design. The first kilowatts of electric power were supplied to the national power grid. Upon permission from the Chinese regulator, the reactor unit of power unit ?3 was turned on at 25% of its capacity, after which the turbine was brought into operation and electrical tests of the field and power delivery systems were carried out. All systems performed in normal operational mode. Construction of the third and fourth power units of the Tianwan NPP are being implemented in record-breaking time and can be considered examples of excellent international cooperation in the energy field, Rosatom said. The next step will involve resting the reactor at a power level of 200 MW. After that, dynamic tests will be carried out at 50%, 75% and 100% of full capacity. Upon successful completion of initial testing at 100% thermal capacity, demonstration testing will proceed at nominal capacity for 100 hours, after which preliminary acceptance procedures will ensue.
Tianwan NPP is a large nuclear power station in Lianyungang prefecture, Jiangsu province. It is considered to be the largest nuclear plant on mainland China. It is located on the coast of the Yellow Sea approximately 30 kilometers east of Lianyungang. The first reactor began full operations in 2006 and the second in 2007. (Source: TAAS, Rosatom – Image: Tianwan NPP under construction)