Investigation of Validating Over PowerΔT Protection

Overpower ΔT protection channel is respectively designed to protect the core against fuel fusion（limiting linear power density）.This paper studies the main steam line break event at full power to validate the overpower ΔT protection for M310 nuclear power plant.The influences of initial conditions,break spectrum,reactivity feedback coefficient and control rod regulation are investigated.A set of analysis method to validate the overpower ΔT protection is formulated based on the discussion.