China National Nuclear Corporation (CNNC) said installation of the reactor internals within the pressure vessel was completed at unit 3 of China's Tianwan NPP in Jiangsu province on 23 August. The 317t reactor vessel for Tianwan 3 was installed within the unit's reactor compartment in May 2015. Units 3 and 4 at Tianwan will be AES-91 VVER-1000 units designed by Russia’s Gidropress and supplied by Russian state nuclear corporation Rosatom.
China National Nuclear Corporation (CNNC) said installation of the reactor internals within the pressure vessel was completed at unit 3 of China's Tianwan NPP in Jiangsu province on 23 August. The 317t reactor vessel for Tianwan 3 was installed within the unit's reactor compartment in May 2015. Units 3 and 4 at Tianwan will be AES-91 VVER-1000 units designed by Russia’s Gidropress and supplied by Russian state nuclear corporation Rosatom.
The main contractor, supplying the nuclear island, is Rosatom subsidiary Atomstroyexport. First concrete for unit 3 was poured in December 2012, and construction of unit 4 began in September 2013. Unit 3 is scheduled to begin operating in February 2018. Two similar reactors (units 1 and 2) began operating at the site in 2007. Tianwan NPP is owned and operated by Jiangsu Nuclear Power Corporation, a joint venture between CNNC (50%), China Power Investment Corporation (30%) and Jiangsu Guoxin Group (20%).
OKB Gidropress earlier in August hosted a delegation from Jiangsu Nuclear Power Corporation to introduce them to production and acceptance testing of the SUZ type of SHEM-3 control rod drives that are to be completed by mid-September for use at Tianwan unit 4. Gidropress has been contracted to produce 135 SHEM-3 control rod drives for Tianwan-4 and to date 103 CPS rod drives have been manufactured and accepted.