METHOD AND SYSTEM FOR ESTIMATING CORE STATUS BY USING GROUP-WISE ROP DETECTOR SIGNAL AND REACTIVITY OBTAINED BY ON-LINE REACTIVITY COMPUTER AT CANDU-6 REACTOR

摘要

PURPOSE: A core state evaluation method and a system thereof are provided to estimate a reactor state and an operation enable state by using a reaction level calculator which uses a platinum measurement of a local overheat protecting/stopping system. CONSTITUTION: Local overheat protecting/measuring units(300) are bound and grouped. A core state representing number is determined based on group average signal variation ratio. A core is determined as a normal or abnormal operation by using core reaction from a reaction level calculator.