ML16343A982
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IINNDDIIAANNAA AANNDD MMIICCHHIIGGAANN PPOOWWEERRDD.. CC.. CCOOOOKK NNUUCCLLEEAARR PPLLAANNTTUUPPDDAATTEEDD FFIINNAALL SSAAFFEETTYY AANNAALLYYSSIISSRREEPPOORRTTRevision:17Table:14.1.10B-3 Page:1 of 1UNIT 2TIME SEQUENCE OF EVENTS(FULL V-5 CORE)AccidentEventTime(sec)Feedwater System Malfunctions:Excessive feedwater flow at fullpower to all four steam generators
(Manual Rod Control)All four main feedwater control valves fail fully
open0.0Hi-hi steam generator water level signalgenerated 31.5Turbine trip occurs due to hi-hi steam generatorwater level 34.0Minimum DNBR occurs34.5Reactor trip occurs due to turbine trip36.0Feedwater isolation achieved 42.5