INES Levels
INES N/A
INES 0
INES 1
INES 2
INES 3
INES 4
INES 5
INES 6
INES 7

INES 0: Deviation

No safety significance

(Arrangements for reporting minor events to the public differ from country to country. Also, it is difficult to ensure precise consistency in rating events between INES Level-1 and Below scale/Level-0)

▸ Legenda & explanation
date title location 
1993-08-10REACTOR TRIP DUE TO STEAM GENERATOR HIGH HIGH LEVEL SIGNALSouth KoreaYONGGWANG-2
1993-09-16REACTOR TRIP DUE TO STEAM GENERATOR HIGH HIGH LEVEL SIGNALSouth KoreaYONGGWANG-2
1993-12-15REACTOR TRIP DUE TO GROUNDING OF POWER SUPPLY OF CONTROL RODSSouth KoreaYONGGWANG-2
1995-03-08REACTOR TRIP DUE TO ACTUATION OF GROUND FAULT RELAYSouth KoreaYONGGWANG-2
1996-08-07Manual shutdown for repairing the steam generator tube leakSouth KoreaYONGGWANG-2
1994-12-03TURBINE AND REACTOR TRIP DUE TOMFCV TROUBLESouth KoreaYONGGWANG-1
1995-07-13SAFETY INJECTION DUE TO MAIN STEAM LINE LOW PRESSURESouth KoreaYONGGWANG-1
1996-01-23Reactor trip due to spurious signal generated by mistake of workerSouth KoreaYONGGWANG-1
1995-09-24MANUAL REACTOR TRIP DUE TO FAILURE OF DRAIN VALVE IN AUTOCLAVE CIRCUITSouth KoreaWOLSONG-3
1996-07-12Manual shutdown for repairing the fueling machineSouth KoreaWOLSONG-3
1994-05-23REACTOR TRIP DUE TO FAILURE OF MAIN FEEDWATER CONTROL VALVE (MFCV)South KoreaULCHIN-2
1995-09-13REACTOR TRIP DUE TO FLUCTUATION OF LUBRICANT OIL PRESSURE IN TURBINE PROTECTION SYSTEMSouth KoreaULCHIN-2
1996-09-14Blockage of sea water screen by jellyfishSouth KoreaULCHIN-2
1993-11-23REACTOR TRIP DUE TO TROUBLE OF DISCONNECTOR SWITCH IN SWITCH YARDSouth KoreaULCHIN-1
1995-08-22REACTOR TRIP DUE TO LOSS OF 48V DC CONTROL POWERSouth KoreaULCHIN-1
1996-02-02Reactor trip due to degradation of photoresistic cell in the main feedwater control systemSouth KoreaULCHIN-1
1996-04-25Reacotr trip due to steam generator level high signalSouth KoreaULCHIN-1
1996-08-11Manual shutdown for repairing of main condenser tubeSouth KoreaULCHIN-1
1993-12-10REACTOR TRIP DUE TO FAST CLOSURE OF MAIN FEEDWATER ISOLATION VALVE (MFIV) CAUSED BY MALFUNCTION OF LOGIC CIRCUITSouth KoreaKORI-4
1994-01-11REACTOR TRIP DUE TO FAST CLOSURE OF MAIN STEAM ISOLATION VALVE (MSIV)South KoreaKORI-4
1993-10-18REACTOR TRIP DUE TO FAST CLOSURE OF MAIN FEED ISOLATION VALVES (MFIV)South KoreaKORI-3
1993-11-03REACTOR TRIP DUE TO FAST CLOSURE OF MAIN STEAM ISOLATION VALVE (MSIV)South KoreaKORI-3
1993-12-06REACTOR TRIP DUE TO TURBINE TRIP CAUSED BY STEAM GENERATOR LEVEL "HI-HI" SIGNALSouth KoreaKORI-3
1995-04-03REACTOR TRIP DUE TO MAIN FEEDWATER PUMPS STOPSouth KoreaKORI-3
1993-11-10REACTOR TRIP DUE TO FLUCTUATION OF PRESSURE IN MOISTURE SEPARATOR AND REHEATER (MSR) DRAIN TANKSouth KoreaKORI-2
1993-12-21REACTOR TRIP DUE TO MAIN CONDENSER VACUUM LOW SIGNALSouth KoreaKORI-2
1994-09-25REACTOR TRIP DUE TO TURBINE TRIP CAUSED BY STEAM GENERATOR LEVEL "HI-HI" SIGNALSouth KoreaKORI-2
1995-02-25SAFETY INJECTION DUE TO PRESSURIZER SPRAY VALVE STACKSouth KoreaKORI-2
1995-11-27REACTOR TRIP DUE TO ACTUATION OF MAIN GENERATOR PROTECTION RELAYSouth KoreaKORI-2
1996-06-18Reactor trip due to steam generator level low-low signalSouth KoreaKORI-2