Reliability Analysis of LOCA Monitoring System in Nuclear Power Plants and Construction of Its Backup System
The LOCA monitoring system is an important system for operators to monitor the state of the reactor core.In the operational technical specifications,it is required that when the LOCA deals with some faults,the unit should reduce its power to below 15％Pn within 6 hours.Therefore,the reliability of the LOCA monitoring system affects safe and sta-ble operation of the unit.This paper analyzes structure and advantage of LOCA monitoring systems currently used in vari-ous power plants,outlines the improvement of system reliability through retrofit for redundancy,and analyzes two feasi-ble retrofit schemes.
LOCA monitoring systemLSSretrofit of PLC for redundancyDCS
万方数据
维普
