11th International Conference May 15-17, 2012 Tatranské Matliare ENERGY – ECOLOGY – ECONOMY 2012 High Tatras, Slovak Republic REQUIREMENTS UNDER DECREE 430 UJD FOR UNIT OUTLET AND STANBY POWER SUPPLY Vančo, K.
[email protected] Abstract At present, the nuclear power plants are only sufficient resources, which can cover a huge demand for electricity. Concentration so huge power in one place require adequate security from the perspective lead power outlet and standby power supply of reactor unit. Keywords Power outlet, standby power supply, reactor unit, UJD 1 INTRODUCTION The reactor is protected from faults with passive protection to ensure safety in the immediate shutdown of the reactor and the reactor power control for cooling down of the reactor. Active Protection is provided by electric equipment that is necessary to provide with sufficient power resources, with the possibility of operational use and reliable power supply. Equally important is the grid node, to which the outlet of power plant is led. The requiring reliable power supply N-2 is demand for this node. A node in the network is configured so that the performance of the Unit outlet was secured even in case of two lines disconnections which were connected at a node with other outlet power lines. This node must also meet the stability of the network in order in case of fault conditions did not disconnect Power plant from the network by frequency or voltage drop. 2 SECURE UJD Decree 430/2011 Coll on project specific requirements in section J. The electrical power supply required for unit outlet the network in order the house load power supply to secure as follows: (1) The project must be available for systems important to nuclear safety following sources: a) working supply from the main power generator, b) two different network sources from a different high voltage switchgears, c) emergency power source located in the autonomous territory of the nuclear facility.