SAPEC : EDFs standardized system for enhanced Safety

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SAPEC EDFs standardized system for enhanced
Safety Performance Periodic Tests on the PWR
fleet

• F. Gachon, C. Thomas, JM Favennec (EDF RD
  Branch, Chatou, France)
• E. Tournu (EDF Nuclear Generation
  St-Denis, France)

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EDFs Nuclear Power Plants

• Installed capacity 67,000 MWe
• 58 operating reactors (on 19 sites)
• 34 900 MWe (3-loopers)
• 20 1300 MWe (4-loopers)
• 4 1450 MWe (4-loopers)
• PWRs (FRA design on Westinghouse license)
• 1 new reactor being built EPR (Flamanville 3)
• Mutualization on series of similar plants a
  powerful motivation for nuclear RD projects
• SAPEC 15 M project and investment
• for enhanced safety performance of operation

AP5
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Managing Safety Performance with key Periodic
Tests need for relevant accuracy and quality
secondary side
Pturbine inlet
Eelec power
Ffeedwater flow
primary side
CLIP (MWe losses detection on sec. system)
Pneutron power calibration BIL100?RPN
Fcoolant flow rate (BIL100 RCP114)
Pon-line thermal power calibration BIL100?BILKIT
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Example thermal power control and calibration
ltmonthly checkcalibrationgt
Secondary heat balance
Primary heat balance
WR SWGV WPP
WR SKc.Qbc (Hbc-Hbf)
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EDFs PWRs thermal power limits
Safety requirement 102 Pn
0,4
KIT check margin
1,6
0,4
KIT uncertainty
0,8
BIL100 uncertainty
Alarm set point 100.4 Pn
0,4
Thermal power instabilities
Operating limit in steady state 100.0 Pn
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Which Safety Performance Periodic Tests (EP)
are performed with SAPEC ?

• The Safety-oriented Periodic Tests are
• BIL100 high accuracy measurement of thermal
  Power output on secondary side (between 87 and
  100 nominal power)
• RPN11/BIL100 check and re-calibration of
  external nuclear power detectors
• BILKIT/BIL100 adjustment and re-calibration of
  BILKIT on BIL100 measurement
• RCP114  primary coolant flow rate measurement
  (by means of primary-secondary heat balance)
• RGL4 adjustment of the position of  grey 
  control rods with electrical power measurement
• RGL102 check of rod falling time

• The Performance-oriented Periodic Tests are
• BIL100 High Accuracy Measurement of Thermal
  Power output on secondary side (between 87 and
  100 nominal power)
• BILXXX measurement of Thermal Power output on
  secondary side (between 30 and 100 nominal
  power)
• CLIP Thermal Performance Efficiency Monitoring
  on the secondary side

IAEA TechMeet Increasing Power Output and
Performance by IC - May 29-31, Prague
7
SAPEC what, how, why
EDFs standardized system for enhanced safety and
performance tests on the PWR fleet
Reliability Safety of operation
better SP Periodic Tests require Quality
measurements and monitoring
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SAPEC main functionalities
The goal is a guaranteed Quality from
sensors through data processing to
long time storage data
IAEA TechMeet Increasing Power Output and
Performance by IC - May 29-31, Prague
9
SAPEC hardware architecture
Test Ressources Management
test sensors
PATERN
CLIP,
Acquisition Devices
Hewlett Packard, SOLARTRON, AOIP, SFERE....
Site Information System
Network
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SAPEC key elements, data acquisition
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SAPECs KME data transmission system a
digital fieldbus and multiplexing connection boxes
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A look at SAPEC in the real-world
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SAPEC EDFs standardized system for
enhanced safety and performance (SP) tests on
the PWR fleet
SAPECs mission is to centralise all Periodic SP
Tests on EDFs fleet of 58 PWRs with

• possibility of centralised (1300 MWe units) or
  decentralised (900 MWe units) architecture for
  measurement systems
• standardized data acquisition and processing
  under QA
• bridges with other test systems
• analysis and data visualisation
• preparation of Test sequences for automatic
  applications
• long time storage, use of data and experience
  feedback

IAEA TechMeet Increasing Power Output and
Performance by IC - May 29-31, Prague
14
IAEA TechMeet Increasing Power Output and
Performance by IC - May 29-31, Prague
15
SAPEC examples of user interface
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PATERN for data acquisition

• Initialisation and set up of measurement chains
• Data-acquisition measurements
• Conversion into physical values
• On-line parameters control
• Data storage (measurements and parameters)
• Post-analysis (calculations, curves, tables of
  results...)

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Ling Ao calibration of HOLLYSYS with SAPEC
Comparison tests in Ling Ao

• parallel connexion of SAPEC HOLLYSYS on the
  BIL100 plant sensors
• validation of measurements
• joint result analysis

HOLLYSYS System SAPEC System (EDF)
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SAPEC helping improve operation and
develop operators experience

• Making better use of SAPEC (a 15 M project and
  investment)
• Today
• SAPEC is the standardized tool on each of EDFs
  58 PWRs
• Allows exchange and sharing of experience
  feedback
• Big benefits with BIL100 (15 MWe/unit) and CLIP
  (5 MWe/unit)
• Tomorrow
• Adjusting organization to accelerate experience
  feedback sharing
• Adding new periodic tests
• Coupling test data with process control data
• Developing better monitoring of main components
  (performance, reliability)
• Sharing of unique database by all plant skills
  control, test, maintenance,
• Developing standard KPIs (Key Performance
  Indicators)