OSCILLATION POWER RANGE MONITOR AND METHOD OF CHECKING SOUNDNESS THEREOF

摘要

An oscillation power range monitor has: an input signal processing section that calculates a normalized cell value from LPRM signals input from local power range monitors; a soundness checking basic signal generating section that generates a simulated cell value that is variable on a time series basis; and a trip determining section that receives the normalized cell value and the simulated cell value respectively from the input signal processing section and the soundness checking basic signal generating section as input, compares the normalized cell value and the simulated cell value with a determination threshold value and outputs a scram trip signal when either of them exceeds the determination threshold value.