The second power unit of TAES commissioned for commercial operation

On August 16, 2007 at 00:15 by Beijing time the Jiangsu Nuclear Power Corporation (JNPC) commissioned Unit 2 of TNPP for commercial operation having completed respective tests of its operation under rated mode, stipulated by the power startup schedule.

Signing of the protocol of Preliminary Acceptance of Unit 2 between ASE and JNPC is expected in the middle of September.

As of today, the first Unit of TNPP has been in commercial operation since June 2007, operating with stability at 100 % capacity. It has generated about five billion kW-h since its startup. Unit 2 of TNPP has generated more than 700 mln kW-h by the moment of its commercial operation startup.

Commissioning of Unit 2 of TNPP for commercial operation has once again confirmed that power engineering in Russia possesses at present enough potential for the realization of large-scale projects in the field of nuclear power engineering.

Successful completion of the erection of the first stage of TNPP is to enable the Russian nuclear power engineers to recon on further orders on the erection of NPP power units on the Chinese territory.

Intergovernmental Agreement on Cooperation on the Erection of a Nuclear Power Plant in the PRC and rendering to China a governmental credit by the RF was signed on December 18, 1992. On December 29, 1997 the General Contract for the erection of the Lianyungang NPP (renamed Tianwan later on) was signed, pursuant to which ASE is constructing two power units with WWER-1000 reactors of total capacity of 2000 MW. Construction works at the site began in 1998.

The following organizations participated in the erection of Unit 2 of TNPP: the St.-Petersburg Institute "Atomenergoproject", the TNPP General Designer, EDU "Gidropress", the reactor plant developer, the RSC "Kurchatovsky Institute", carrying out scientific guidance of the project, and also "Izhorsky Zavody", plants of the "Power machines" concern, and other enterprises manufacturing NPP equipment. In total 150 more Russian enterprises participated in the project.

The power unit is equipped with a reactor plant with a WWER-1000|428 reactor and a turbine of the -1000-60/3000 type with a -100002Y3 generator.

The advanced reactor plant of the WWER-1000/428 type with improved neutron-physical parameters and increased efficiency of emergency protection has a four-channel structure of safety systems and a number of devices and systems enabling to consider the TNPP project unique.

The reactor building has a double containment: internal containment eliminates any chances of radiation penetration into the environment, and the external one is designed for the protection of the reactor from the negative impact of the environment.

There is a "catcher" installed under the reactor pressure vessel for catching and cooling molten core. It is designed for the molten core to fill the catcher in case of an accident and not destroy the base and foundation under the reactor pressure vessel and the reactor building. The "catcher" has original engineering solutions, having no analogs in the world NPP erection practice. China became the first country in the world possessing such a facility. The "catcher" design, developed by the Russian engineers, has successfully undergone expert evaluation by the Russian and Chinese supervising bodies and got the IAEA approval.

JSC "Atomstroyexport" (JSC ASE) is a leading Russian company realizing intergovernmental agreements on the erection of nuclear power engineering facilities abroad. It is currently the only company in the world erecting in parallel six power units of nuclear power plants in China, India, Iran and Bulgaria.

SOURCE: JSC Atomstroyexport

DATE: August 18, 2007

Topics: NPP, China, Atomstroyexport, Asia, Russia

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