Abstract
The contribution describes the new instrumentation and control (I&C) system of the VR-1 training reactor at Czech Technical University in Prague. The reactor was put into operation in the 1990. The original reactor I&C seemed to be obsolete and their replacement was being carried out. The new reactor I&C consists of human-machine interface, control system and protection system. The human-machine interface was designed with respect to functional, ergonomic and aesthetic requirements. Czech and English interface versions are available. The control system is based on a high quality industrial PC mounted in a 19'' crate. The operating system of the PC is the Microsoft Windows XP with the real time support RTX of the VentureCom Company. The protection system consists of the operational power measuring (OPM) and the independent power protection (IPP) systems The OPM is a full power range system. The IPP system works in the two highest power range decades. The computers of both systems calculate the reactor power and power rate, compare them with the safety limits, and if they are exceeded, the safety action is initiated. The OPM and IPP systems are diverse; different types and location of chambers, completely different hardware, software algorithms, development tools and teems for software manufacturing.
