Introduction to Russian Nuclear Pressurized Water Reactor

Introduction to Russian Pressurized Water Reactor Technology

This course discuss the water-water energetic reactor (WWER) which represent  one of the most important type of Pressurized Water Reactor and thermal reactor which made In Russia.The nuclear power station uses the uranium (235) as fuel; whereas 1kg give a power equal to the power of 2900 tons of Coal. The thermal power of the reactor equal 3000MW and electrical power equal 1000MW. The efficiency of the reactor equal 32%. There are a lot of kinds of WWER nuclear reactor as (WWER-440, WWER-1000 and WWER-1200). The first loop of WWER-1000 include a reactor vessel, four main coolant pumps, and steam generator. The turbine and electrical generator located at the second loop. The reactivity affects the power of the reactor and the state of reactor depends on it.

WWER-1000 nuclear reactor is a Russian pressurized water reactor has an apparent power equal 1111 MVA. The reliability of reactor’s electrical system  is very high to keep the feeding of different components in it. The internal loads of the reactor represent 8% of the reactor’s total power; and divided into three groups depending on its reliability requirements of electrical supplying. The reactor includes two loops; the first one has four main circulation pumps which represent one of the very important components in the reactor. The main circulation pumps require a high demand on the reliability of power supply; which must not interrupt more than a fraction of seconds. The aim of this paper; study the electrical system of two WWER-1000 nuclear reactor units with maximum load equal 900 MW and minimum load equal 700 MW. The case study aims to make analysis for the Load flow in the reactor with his auxiliary systems. The short circuit and stability analysis had taken in care in this study, and all results had illustrated.