Main principles of modern control and protection system equipment (CPSE) development for nuclear research reactors

The problem of developing unified control and protection system (CPS) hardware on the basis of modern elements is actual in the USSR. The main requirement for CPS is connected with a provision of reactor operation safety, besides, it is necessary to reduce duration of idle time. The further increase of I and C automation level should be considered as one of the most important way for solving the safety problems. In this connection the main principals of the control and protection system design based on microprocessors are considered. The proposed CPS is divided into three subsystems: protection subsystem, control subsystems and monitoring subsystem. The control and monitoring subsystems receive information from the protection subsystem through galvanically insulated communication line. The transfer of information between subsystems is performed in dynamic mode. (author). 1 fig