Operating Experience Feedback Operating Experience Feedback P i KP i KProgram in KoreaProgram in Korea

March 10, 2010

Choul-Ho Yun

President of KINS

OEF from International Information

OEF Program in Korea

R t A ti iti f OEF

OEF from International Information

IT Systems for OEF

Recent Activities for OEF

Current Issues and Future Activities

1. OEF Program in Korea

General Process of OEF in Korea• MEST Notice 2009-37• IRS INESCollection

Screening

Information

• IRS, INES• US NRC IN, GL, etc.• JNES PRI, etc.

• By OE Department• By Technical Groups (9 fields)

OPIS• Public• International

Screening

Communication Immediate Actions

Storage

• By Technical Groups (9 fields)

• InvestigationActions

Evaluation / Application

Regulatory Action

• Corrective ActionsApplication Action

Tracking • CATS

• Inspections• Safety Reviews

3

Reference : IAEA Safety Guide No. NS-G-2.11 “A System for the Feedback of Experience from Events in Nuclear Installations”

1. OEF Program in Korea

E t R ti (MEST N ti 2009 37)Event Reporting (MEST Notice 2009-37)Reactor SCRAM (automatic, manual), ESF Actuation, Radioactive material release, External events (fire, earthquake, ..), etc.

• Safety-related equipment failure (TS LCO entry) is also reported by the utility

Corrective Actions imposed by the official letter of MEST/KINSManages the Lessons-learned (corrective actions) efficiently and effectively using the IT based System (CATS : Corrective Actions Tracking System)g y )

Safety Issues & Experiences of Safety Review &Inspection for NPP

Resolving in each regulatory project on safety issues under development of IT based Systematic Feedback Process

4

under development of IT based Systematic Feedback Process• Currently Safety Issues are managed & evaluated by 8 Expert Groups

(Mechanial, Electrical, Radioactive, Reactor ..)

1. OEF Program in Korea

Process of OEF on events

Utility MEST (KINS)

Analysis

Event Reporting 1st Investigation1st Investigation

MEST Notice 2009-37

Utility MEST (KINS)

AnalysisEvent review

2nd Investigation

RecommendationCorrective Action

CA E l tiCA E l ti

Administrative Letter

CA EvaluationCA Evaluation

DisseminationDisseminationFeedback

for NPP RegulationInformationDisclosure

Public

5

IT based Management System (CATS; Corrective Actions Tracking System)

2. OEF from international information

Foreign OEF InputsIAEA IRS (Incident Reporting System), INES (International Nuclear Event Scale)U.S. NRC GL, IN, LER etc. JAPAN PRI (Public Release Information)JAPAN PRI (Public Release Information)Other OEF data

Feedback to KINS RegulationCollection & Storage of information in Database SystemOEs Screened & analyzed by OE Team/ Expert GroupFeedback & Follow-up of Corrective Actions

6

2. OEF from international information

MEST ForeignEvent

CollectionCollection

KINS OE Team (OSAD)

Utility MEST (KINS) IAEA,

USNRC, JAPAN etc

ScreeningScreening DIOS DB

Evaluation(Expert Group)

Evaluation(Expert Group)

( )

Recommendation of Regulatory

Action

RecommendationRecommendationCorrective Action

Safety Issue?Safety Issue?

Regulatory ProcedurePeriodic Inspection

Ad i i t ti L tt

DIOS DB (Trend Analysis)

CA EvaluationCA Evaluation

InformationDisclosure

Safety ReviewAdministrative Letter Feedback

DIOS (Dissemination of Information & Operational Experience)

7

DisseminationDisseminationDisclosure

PublicDIOS (Dissemination of Information & Operational Experience)- Database of Integrated Operational Experience & Safety Issue

3. IT Systems for OEF

Developing for the efficient utilization of valuable OEs to the regulation

OEF Database (DIOS, Dissemination of Incidents and OE System)

Domestic DB (Reported Events, Regulation activities including safety reviewand inspection) & Foreign DB (Events and Safety Issues)

8

3. IT Systems for OEF

HuRAM+ (Human related event Root Cause Analysis Method) & DB

System for analysis of the events

Nuclear Plant Analyzer (e-FAST, electronic-Functional Analysis andSimulation Tool)3D Virtual NPP Digital Information System (IT based 3D Virtual Plant System)

9

3. IT Systems for OEF

Functions & Merits

3D Virtual NPP Digital Information SystemPrimary System with ESF

Feedwater System

Inside ContainmentBldg

10

3. IT Systems for OEF R TRACER (Tracking System for the Implementation of Nuclear Regulation)To coordinate, manage and confirm national nuclear regulationWeb-based IT OEF System

R-TRACER (Tracking System for the Implementation of Nuclear Regulation)

DIOS: Dissemination of Incidents and OE System (Integrated DB)CATS: Corrective Actions Tracking System for Reported EventsSIMS: Safety Issue Management System for Feedback of Foreign Operational Experience & Safety IssuesExperience & Safety IssuesOPIS: Operational Performance Information System for Dissemination of Operational Experience including the reported events SAFER: NPP Regulation System on Business Process Management g y g

R-TRACER

CATS DIOS SIMS OPISEvent FollowupTracking on Corrective Actions

StorageCategorizationAnalysis on characteristics of OE information

Safety Issue Identification / Screening/ Assessment/Implementation

Open to the publicProvide to the experts

11

SAFERSafety Review ManagementSafety Inspection Management

3. IT Systems for OEF

R-TRACER(Web based)

12

4. Recent Activities for OEF

Annual National Workshop on OEF

Workshop on OEF has been held for 7 yearsP ti i ti f MEST KINS li i d t i d thParticipation of MEST, KINS, licensee, industries and othersMajor discussions about

Optimization of the immediate response for NPP EventsConsistent and Reasonable Evaluation for the eventsConsistent and Reasonable Evaluation for the eventsmore exchange of information

13

4. Recent Activities for OEF

International activities for OEF information exchangeRCOP-1

to improve nuclear safety by feedback operating experiences of NPP in Northeastto improve nuclear safety by feedback operating experiences of NPP in Northeast Asia

IAEA ANSNl d h l f i f i i i d k l d dto analyze and share nuclear safety information existing and new knowledge and

practical experience among the countiesto construct a complete Asian network for sharing safety information

2nd TRM (Top Regulators Meeting) (’09.8.27 ~ 28, Seoul)Northeast Asian OEF Clearinghouse InitiativeOperation of an Early Notice System among China, Japan and KoreaExchange of Experts and Regulatory Information on Event and EmergencyExchange of Experts and Regulatory Information on Event and Emergency Preparedness Response

IAEA (IRS, INES), OECD/NEA WGOE

14

4. Recent Activities for OEF

Examples of Recent Assessment in Korea

Loss of offsite power and SDG startup due to opening of p p p gswitchyard breaker (Wolsong 2, Sept 3, 2009)

Reactor trip by turbine trip due to spurious actuation of turbine protection system (Kori 2, Dec 19, 2008)

Reactor trip due to RCP trip caused by lightningand subsequent SI due to inverter instability (Kori 1, Aug 8,2008)

R t t i d t S/G l l l ith t fl /f d flReactor trip due to S/G low level with steam flow/feed flowmismatch caused by loss of steam pressure signal (Ulchin1, July 3, 2008)

Indication of boric acid at S/G bowl drain nozzle (May 27 2008)Indication of boric acid at S/G bowl drain nozzle (May 27, 2008)Safety injection due to inadvertent opening of the pressurizer

PORV during hot standby operation (Kori 3, May 25,

15

PORV during hot standby operation (Kori 3, May 25, 2008)

5. Current Issues and Future Activities

Current IssuesEstablishment of robust and solid National Operating Experience Feedback Program (N-OEF)Program (N OEF)

How all of the regulatory activities could be integrated into the OE programHow lessons-learned and insights from OE could be effectively &

ffi i tl tili d d i t d t hi l t lefficiently utilized and communicated to achieve regulatory goals

Establishment of an centralized system managing OEs and development of web based N OEF supporting systemweb-based N-OEF supporting system

To ensure efficient and effective collection, storage, screening, communication, evaluation, and applicationTo avoid missing the important information on decision makingg p g

16

5. Current Issues and Future Activities

Future Activities

Establishments of steering & working groupDevelopment of the framework for the N OEF programDevelopment of the framework for the N-OEF program

clearly defined roles, responsibilities, work flow for the process of dealing operating experience information

Development of the techniques such as screening criteria and trend p q ganalysis methods, etc.Development of the infrastructure for communication Development of the program for effectively utilizing the international operating experience informationoperating experience information

Development of web-based N-OEF supporting systemFor the optimization of the OE information retrieval function amongFor the optimization of the OE information retrieval function among various data bases such as the results of events, inspections, and safety reviewsFor the efficient/ effective communication with stakeholders

17

18