Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.05a
- /
- Pages.81-83
- /
- 2005
An Unavailability Evaluation for a Digital Reactor Protection System
디지털 원자로보호계통 불가용도 평가
- Published : 2005.05.14
Abstract
The Reactor Protection System (RPS) is a very important system in a nuclear power plant because the system shuts down the reactor to maintain the reactor core integrity and the reactor coolant system pressure boundary if the plant conditions approach the specified safety limits. This paper describes the unavailability assessment of a digital reactor protection system using the fault tree analysis technique. The fault tree technique can be expressed in terms of combinations of the basic event failures. In this paper, a prediction method of the hardware failure rate is suggested for a digital reactor protection system. and applied to the reactor protection system being developed in Korea.