Vienna, May 22, 2013

Nuclear I&C Activities in Hungary

2011-2012

Presented by Tamás Túri

Vienna, May 22, 2013

Contents

• Paks NPP

• Centre for Energy Research

• Technical University of Budapest

• Suggested topics for the IAEA

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Paks Nuclear Power Plant

Status of nuclear energy in Hungary

Unit-1

1982

Unit-2

1984

Unit-3

1986

Unit-4

1987

4 x PWR 500 MWe

Paks Nuclear Power Plant

Paks Nuclear Power Plant

Paks Nuclear Power Plant

Turbine Monitoring

• 4x2=8 turbogenerator

• The original system is soviet design from the 70s

• 2001 December, insurance assessment

• Public procurement, Emerson selected

• Installation

– Unit 1 2011

– Unit 2 2012

– Unit 3 2013

– Unit 4 2014

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Stress test

• European Commission and the European Nuclear Safety

Regulators' Group (ENSREG) agreed on 25 May 2011

on voluntary tests for the EU's 143 nuclear power

reactors

• The Hungarian National Action Plan was completed on

December 18, 2012.

• April 22 – 26, 2013 ENSREG meeting on action plans of

the 17 countries involved.

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I&C related actions in the Natioanl Action Plan:

• In the frame of the reconstruction project of the seismic instrumentation, which is

in preparatory phase, the question of automatic shutdown shall be revised

• Resistance against electromagnetic effects shall be reevaluated

• The adequacy of the emergency related on-site and off-site radiation monitoring

devices for earthquakes and loss of power supply shall be revised.

• Installation of the severe accident instrumentation has been taking place for

Paks NPP and it had been decided before the accident of Fukushima Dai ichi

NPP.

• A software-based severe accident training simulator shall be developed

• The methods to guarantee the conditions for radio communication shall be

assessed in the case of permanent loss of electric power and earthquakes

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Stress test

Sever accident management

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2011 2012 2013 2014 2016 2018

1.Installation of hydrogen burners in the

containment

U1-4

2.Flooding the reactor cavity and cooling the

reactor pressure vessel from outside

U1 U2 U3 U4

3.Prevention of loss of coolant of the spent fuel

storage pool

U1 U2, U4 U3

4.Installation of an autonomous electric power

supply system for designated consumers of SAM

U1-4

5.Installation of a severe accident monitoring

system

U1 U2 U3, U4 U4

6.Setup of a technical support center STSC TSC

Main I&C projects in progress

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• Over all I&C system refurbishment – Feasibility study 2011, Control Room upgrade studies,

• Control rod driving system and the Reactor

power controller – Specification for tendering 2012, waiting for approval

• On-line chemical measuring system – Basic design is ready, license is issued, first installation is planned in 2013.

• Meteorological measuring system – Desing is in progress, installation is planned in 2013

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Hungarian Academy of Sciences

Centre for Energy Research

János Végh

Centre for Energy Research

Control room modernization: Plant Control Centre 1/2

• Replacement of the conventional scheme-wall and

furniture

• Activities completed in 2010:

Preparation of requirements specification document

Conceptual studies for a video-wall with large overview displays

Modernization concept for the whole PCC control room

KFKI AEKI and CGM AB (Borås, Sweden) were selected to perform

conceptual control room and HMI design studies

SCADANET Ltd. performed the video-wall studies

PCC staff was involved in data collection, conceptual design and review

activities

Centre for Energy Research

Control room modernization: Plant Control Centre 2/2

• Activities completed in 2011: Finalization of the new PCC control room design (CGM AB)

Selection of the video-wall concept and technology (Scadanet)

Development of large overview display prototypes (KFKI AEKI)

• Activities completed in 2012: Selection of system integrator and video-wall supplier (EyeVis, Germany)

Preparation of site installation plan

Procurement and installation at FAT site

FAT was completed in November 2012 (Budapest)

Site installation and SAT performed in December 2012 (Paks)

• The new PCC control room with the new video-wall

started successfully its regular operation in January 2013

Centre for Energy Research

View of the old scheme-wall in the Plant Control Centre control room ( Paks NPP)

Centre for Energy Research

View of the new video-wall in the Plant Control Centre control room ( Paks NPP)

Centre for Energy Research

Preparation of Bid Invitation Specification for Paks 5&6

• Lévai Project (MVM Ltd.) – conducting BIS preparation

• Activities completed in 2011 and 2012 (BIS chapters by CER):

I&C functional analysis and task analysis

Requirements for I&C design, I&C functions and architecture

Application of human factor engineering principles in I&C design

Requirements for process control and instrumentation

Requirements for safety I&C (e.g. RPS)

Requirements for safety-related I&C

Requirements and specifications for human-system interface components,

control rooms and other control points

Specifications for full-scope simulator and training programmes

Emergency preparedness infrastructure requirements

Centre for Energy Research

Modernization of Paks NPP process computer (PCS)

• The present PCS is 15 years old obsolete hardware and

operating system (Windows NT) maintenance problems

• Conceptual plan for the modernization

• Main proposals and recommendations:

Application of the “virtual machine” concept to facilitate hardware independence of

the new process computer system

Application of unidirectional “data diodes” and “mirror servers” to separate internal

and external computer networks in a secured way

Provision of the same HSI for the internal and external users

Provision of a plant-level data archive with central data storage

Continuation of the basic PCS architecture: Windows operating system + iFIX Scada

application software + Intel-based servers

Upgrading and renewal activities at

the Training Reactor of

the Budapest University of Technology and

Economics

Bálint Szabó

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• Education and research reactor

• Commissioned in 1971

• Located in the university campus

Training reactor at BME

• Pool-type reactor

• Pmax: 100 kWth

• Fuel: 10 % enriched UO2

Training reactor at BME

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• Reactor control and safety rod drives – completed

• Primary circuit measurement system

(T, p, water level, etc.) – in design phase

I&C Reconstruction activities

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Control and safety rod drives

New rod drives

• Stepper motor

• Proximity sensors

• Spiral cabled magnet

power supply

• High reliability

connectors

Old rod drive

• DC motor

• Micro switches

• Sliding contactor

magnet power supply

• Standard connectors

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Control and safety rod drives

Suggested topics for the IAEA

for 2013-2016

Suggested topics for the IAEA 2013-2016 1/2

• Role of I&C in BDBA and SA situations – I&C designs to cope with BDB and severe accidents

– Improved (“hardened”) instrumentation and process monitoring

– Improved emergency response capabilities, including

• on-site support (with the capability to handle multi-unit accidents)

• off-site support (with simulation, planning + prediction capabilities)

• improved training (with advanced simulation + visualization tools)

• Harmonization of I&C standards and safety regulations – Focusing on safety I&C requirements for new plants

– International co-operation to establish a reference safety I&C architecture for LWR

plants

• Computer security protection measures

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Suggested topics for the IAEA 2013-2016 2/2

• Special considerations for the I&C design of the new plants – Relatively long time between bidding and commissioning and very short life cycle of

the I&C (How to avoid obsolescence already at commissioning?)

– Design for easy refurbishment during the long service life of the plant

– Design for supporting configuration management

– Design tools in general, and integration of the tools of different areas

– The role of the simulators in the design of I&C

• Technical missions to the different stakeholders – Nuclear I&C training for utilities and regulators,

– IERICS to the utilities, evaluating design solutions prior to installation,

– ICSAS missions,

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