Time response measurement of temperature and pressure sensors of Angra-I Nuclear Power Plant using noise analysis technique

The operation conditions and the limits, which the facility is subject to during a transient, are determined in the design period whether it is a nuclear facility or not. To monitor the dynamic variables and keep them under control in order to guarantee that they do not exceed the security limits, sensors are installed throughout the process. To guarantee that these sensors respond properly, the response time determination of temperature and pressure sensors from the Reactor Protection System (RPS) is necessary and is a requirement that must be satisfied. Furthermore it is an indicative of its degradation and its remaining working period. In this work we present the results of the time response of the RPS's sensors using an indirect method called Noise Analysis Technique and compare these results with those from the indirect method. (author)