ML11257A056

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Attachment 20, WNA-DS-01811-WBT-NP, Rev. 0, Wincise Signal Processing System Design Requirements, and Attachment 21, Application for Withhold Proprietary Information from Public Disclosure
ML11257A056
Person / Time
Site: Watts Bar Tennessee Valley Authority icon.png
Issue date: 07/31/2011
From: Shakun M
Westinghouse
To:
Office of Nuclear Reactor Regulation
References
CAW-11-3217 WNA-DS-01811-WBT-NP, Rev. 0
Download: ML11257A056 (44)
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Attachment 20 Westinghouse Electric Company WNA-DS-01811 -WBT-NP, Revision 0, "WINCISE Signal Processing System Design Requirements" (Non-Proprietary)

O Westinghouse Westinghouse Non-Proprietary Class 3 Automation Services Watts Bar 2 NSSS Completion Program I&C Projects WINCISE Signal Processing System Design Requirements WNA-DS-01811-WBT-NP Rev. 0 July 2011 APPROVALS Function Name and Signature Author Matthew A. Shakun*

Engineer, Nuclear Automation Licensing Reviewer Kenneth I. Sundstrom*

Principal Engineer, Incore & Monitoring Systems Approver Shawn P. Kelly*

Product Manager, Incore & Monitoring Systems

  • Electronically approved records are authenticated in the electronic document management system.

© 2011 Westinghouse Electric Company LLC All Rights Reserved

Automation Services WINCISE Signal Processinp_ System Design Requirements LIST OF CONTRIBUTORS Revision Name and Title A Matthew T. Wereb Senior Engineer, Common Q Hardware Applications I A, B Austin J. Katzin Engineer, Nuclear & Process Instrumentation A, 0 Jenna L. Tyger Editorial Specialist, Technical Communications

© 2011 Westinghouse Electric Company LLC All Rights Reserved

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements REVISION HISTORY RECORD OF CHANGES Revision Author Description Completed A Jeri E. Chadwick Preliminary Issue 07/09 B Jeri E. Chadwick Updated references and requirements 05/10 0 Jeri E. Chadwick Original Issue 06/10 0-P Matthew A. Shakun Based on Rev. 0 See EDMS DOCUMENT TRACEABILITY & COMPLIANCE Created to Support the Following Document(s) Document Number Revision WINCISE Functional Specification for Watts Bar Unit 2 420A90 Latest Revision OPEN ITEMS Item Description Status WNA-DS-01811-WBT-NP Rev. 0 ii Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements TABLE OF CONTENTS Section Title Page LIST OF CON TRIBU TO R S ....................................................................................... i REV ISION H ISTO RY .......................................................................................... ii TA B LE OF CON TEN TS ............................................................................................. iii LIST O F TAB LES ................................................................................................. .v LIST O F FIG UR ES ............................................................................................... v A CRON YM S AND TRA D EM ARK S .................................................................... vi G LO SSA RY O F TERM S ............................................................................................ vii REFEREN CES ............................................................................................................ viii REQ U IR EM EN TS .................................................................................................. x SECTION I IN TRO DU CTION ....................................................................................................... 1-1 1.1 O VERV IEW ................................................................................................................ 1-1 1.2 SCO PE ......................................................................................................................... 1-1 1.3 O BJECTIV E ................................................................................................................ 1-2 1.4 FO RM A T OF TH E D OCU M EN T .............................................................................. 1-2 SECTION 2 G EN ERA L SY STEM D ESCRIPTION ....................................................................... 2-1 2.1 D ESIGN D ESCRIPTION ............................................................................................ 2-1 2.2 M A JO R SY STEM CA PA BILITIES ........................................................................... 2-1 2.2.1 Cabinet H ardw are D esign Function ............................................................................. 2-1 2.2.2 Signal Processing Electronics D esign Function ........................................................... 2-2 2.2.2.1 Com m unications N etw ork D esign Function ................................................................ 2-2 2.2.2.2 A mplifier Card D esign Function ................................................................................. 2-2 2.2.2.3 Card Em bedded Firm ware D esign Function ................................................................ 2-3 2.3 SY STEM M OD ES AN D STA TES ............................................................................. 2-3 2.4 M AJO R SY STEM STA TU S .................................................................................. 2-3 2.4.1 Initialization ................................................................................................................. 2-3 2.4.2 A lgorithm Implem entation ........................................................................................... 2-4 2.4.2.1 A nalog Input Processing .............................................................................................. 2-4 2.5 D IA GN O STIC FUN CTION S...................................................................................... 2-4 2.5.1 Com m unications Interface D iagnostics ....................................................................... 2-5 2.5.2 I/O D iagnostics ............................................................................................................ 2-5 2.5.3 D ata Transfer ............................................................................................................... 2-5 SECTION 3 SYSTEM CAPABILITIES, CONDITIONS, AND CONSTRAINTS ........................ 3-1 3.1 PH YSICA L .................................................................................................................. 3-1 3.1.1 Construction ................................................................................................................. 3-1 3.1.1.1 Cabinet Internal Equipm ent Operating Environm ent .................................................. 3-1 3.1.1.2 Cabinet External Operating Environm ent .................................................................... 3-2 WNA-DS-01811-WBT-NP Rev. 0 iii Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements 3.1.2 Single Failure Requirem ents ........................................................................................ 3-2 3.1.3 Separation Requirem ents ............................................................................................. 3-2 3.1.4 Isolation Requirem ents ................................................................................................ 3-2 3.1.5 W IN CISE Cabinet Cable Routing ............................................................................... 3-3 3.1.6 System Security ........................................................................................................... 3-3 3.1.7 Electrom agnetic Compatibility and Seism ic Q ualification .......................................... 3-3 3.1.8 Cabinet M ounting ........................................................................................................ 3-4 3.1.9 Cabinet Service and A ccess ......................................................................................... 3-4 3.2 SYSTEM PERFORMANCE CHARACTERISTICS .................................................. 3-4 3.2.1 A ccuracy Requirem ents ............................................................................................... 3-4 3.2.2 System Response Tim es .............................................................................................. 3-5 3.3 SY STEM OPERA TIO N S ............................................................................................ 3-5 3.3.1 Test and M aintenance Function ................................................................................... 3-5 3.3.2 System Testing Requirem ents ...................................................................................... 3-5 3.3.3 System Testing, Calibration, M aintenance .................................................................. 3-6 3.3.4 System A vailability ...................................................................................................... 3-7 3.3.4.1 Operability Requirem ents ............................................................................................ 3-7 SECTIO N 4 SY STEM IN TERFA CES ............................................................................................ 4-1 4.1 PO W ER IN TERFA CE REQ U IREM EN TS ................................................................. 4-1 4.1.1 Pow er Source Requirem ents ....................................................................................... 4-2 4.1.2 Pow er Load Requirem ents ........................................................................................... 4-3 4.1.3 Chassis Pow er Requirem ents ....................................................................................... 4-3 4.2 IN PU T SIGN A LS ........................................................................................................ 4-3 4.2.1 A nalog Input Signals ................................................................................................... 4-3 4.3 O U TPU T SIGN AL S ................................................................................................... 4-4 4.4 IN TERN AL PAN EL W IRIN G .................................................................................... 4-4 4.4.1 Pow er W iring ............................................................................................................... 4-5 4.4.2 G rounding W iring ........................................................................................................ 4-5 SECTION 5 PACKING AND TRANSPORTATION REQUIREMENTS ...................................... 5-1 5.1 PACKING, SHIPPING, AND RECEIVING REQUIREMENTS ............................... 5-1 Rev. 00 iv Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP iv Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Si2nal Processin2 Svstem Desi2n Requirements Automation Services WINCISE Si~uaI Processin2 System Design Requirements TABLE OF CONTENTS (cont.)

LIST OF TABLES Table Title Page None.

LIST OF FIGURES Figure Title Page None.

V Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev. 0 WNA-DS-01811-WBT-NP Rev. 0 V Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements ACRONYMS AND TRADEMARKS Acronyms used in the document are defined in WNA-PS-00016-GEN, "Standard Acronyms and Definitions" (Reference 1), or included below to ensure unambiguous understanding of their use within this document.

Acronym Definition 3-D Three Dimensional AC Alternating Current BDP BEACONTM Data Processing BEACON Best Estimate Analysis Core Operations - Nuclear CMRR Common Mode Rejection Ratio DC Direct Current IITA In-core Instrument Thimble Assembly RMS Root Mean Square SPD Self-Powered Detector SPE Signal Processing Electronics SPS Signal Processing System WINCISETM Westinghouse Incore Information and Surveillance Engineering BEACONTM and WINCISETM are trademarks of Westinghouse Electric Company LLC.

Modbus is a registered trademark of Schneider Automation Inc.

Ovation is a registered trademark of Emerson Process Management.

All other product and corporate names used in this document may be trademarks or registered trademarks of other companies, and are used only for explanation and to the owners' benefit, without intent to infringe.

WNA-DS-01811-WBT-NP Rev. 0 Ai Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements GLOSSARY OF TERMS Standard terms used in the document are defined in WNA-PS-00016-GEN, "Standard Acronyms and Definitions" (Reference 1), or included below to ensure unambiguous understanding of their use within this document.

Term Definition Application Server Hardware that provides signal transmission between the signal processing electronics, core power distribution calculation software, and the Ovationo highway (or equivalent).

Firmware Computer instructions and data that are supplied as an embedded part of a computer-based module or system that cannot be modified by the end user of the module or system.

Host Software Application Program running on an Application Server that handles communicating over Ethernet to and from the Signal .Processing Electronics (SPE) and performs signal processing.

In-core Instrument Housing for Self-Powered Detector elements and Core Exit Thimble Assembly Thermocouples. IITAs are positioned in fixed locations within the reactor core in a manner that allows for determination of the core power distribution.

Leakage Resistance Self-Powered Detector signal degradation caused by an increase in detector insulation impurities associated with detector aging.

Self-Powered Detector Insulated emitters and associated wiring that is enclosed by a protective sheath within an IITA.

Rev. 00 vii Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP WNA-DS-01811-WBT-NP Rev. vii Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements REFERENCES Following is a list of references used throughout this document.

1. WNA-PS-00016-GEN, Rev. 4, "Standard Acronyms and Definitions," Westinghouse Electric Company LLC.
2. WNA-DS-02196-WBT, Rev. 0, "BEACON Data Processing Application Program Software Requirements Specification," Westinghouse Electric Company LLC.
3. 420A90, Rev. 1, "WINCISE Functional Specification for Watts Bar Unit 2," Westinghouse Electric Company LLC.
4. Modbus Messaging on TCP/IP Implementation Guide V1.0b, MODBUS-IDA.ORG, October 24, 2006, http://www.modbus-ida.org/specs.php.
5. Modbus Application Protocol Specification Vl. lb, MODBUS-IDA-ORG, December 28, 2006, http://www.modbus-ida.org/specs.php.
6. Modbus Over Serial Line Specification and Implementation Guide V1.02, MODBUS-IDA.ORG, December 20, 2006, http://www.modbus-ida.org/specs.php.
7. IEEE Standard 384-1981, "IEEE Standard Criteria for Independence of Class 1E Equipment and Circuits," Institute of Electrical and Electronics Engineers, Inc., 1981.
8. LTR-EQ-08-90, Rev. 0, "Standard 7721 Seismic Cabinet Deflection-Spacing/Clearance Between Cabinets," Westinghouse Electric Company LLC.
9. Regulatory Guide 1.180, Rev. 1, "Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems," U.S. Nuclear Regulatory Commission, 2003.
10. Regulatory Guide 1.29, Rev. 4, "Seismic Design Classification," U.S. Nuclear Regulatory Commission, 2007.
11. ASME NQA-1 1994, "Quality Assurance Program Requirements for Nuclear Facilities," American Society of Mechanical Engineers, 1994.
12. WNA-DS-02208-WBT, Rev. 0, "IIS SPS Datalink Client Software Interface Specification,"

Westinghouse Electric Company LLC.

13. WNA-DS-02194-WBT, Rev. 0, "BEACONTM Datalink Interface Specification," Westinghouse Electric Company LLC.
14. WNA-DS-02193-WBT, Rev. 0, "ICS Datalink Interface Specification," Westinghouse Electric Company LLC.

WNA-DS-01811-WBT-NP Rev. 0 viii Westinghouse Non-Proprietary Class 3

Automation Services WINCTSE Signal Processing System Design Requirements REFERENCES (cont.)

15. WNA-CN-00157-WBT, Rev. 0, "WB2 IIS SPS Isolation Requirements Calc Note," Westinghouse Electric Company LLC.

ix Westinghouse Non-Proprietary Class 3 Rev. 0 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP 0 ix Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements REQUIREMENTS Design and/or other requirements have been identified in this document. Following is a list of the requirement numbers and the document page on which the requirement is identified.

R2222_01 ............... 2-2 R322 01 .................. 3-5 R2222_02 ............... 2-2 R322 02 .................. 3-5 R2222_03 ............... 2-2 R331 01 .................. 3-5 R2223_01 ............... 2-3 R331 02 .................. 3-5 R2223_02 ............... 2-3 R331 03 .................. 3-5 R2223_03 ............... 2-3 R332 01 .................. 3-5 R241_01 ................. 2-3 R333 01 .................. 3-6 R241_02 ................. 2-3 R333 02 .................. 3-6 R241_03 ................. 2-4 R333 03 .................. 3-6 R242_01 ................. 2-4 R333 04 .................. 3-6 R242_02 ................. 2-4 R333 05 .................. 3-6 R252_01 ................. 2-5 R333 06 .................. 3-6 R252_02 ................. 2-5 R333 07 .................. 3-6 R252_03 ................. 2-5 R333 08 .................. 3-6 R252_04 ................. 2-5 R3341 01 ................ 3-7 R252_05 ................. 2-5 R004 01 .................. 4-1 R253_01 ................. 2-5 R004 02 .................. 4-1 R253_02 ................. 2-6 R004 03 .................. 4-1 R253_03 ................. 2-6 R004 04 .................. 4-1 R3111_01 ............... 3-1 R041 01 .................. 4-1 R3111_02 ............... 3-1 R041 02 .................. 4-1 R3111_03 ............... 3-1 R041 03 .................. 4-1 R3111_04 ............... 3-1 R041 04 .................. 4-2 R3112_01 ............... 3-2 R041 05 .................. 4-2 R312_01 ................. 3-2 R041 06 .................. 4-2 R314_01 ................. 3-2 R041 07 .................. 4-2 R314_02 ................. 3-2 R041 08 .................. 4-2 R314_03 ................. 3-3 R411 01 .................. 4-2 R315_01 ................. 3-3 R412 01 .................. 4-3 R315_02 ................. 3-3 R413 01 .................. 4-3 R315_03 ................. 3-3 R421 01 .................. 4-3 R316_01 ................. 3-3 R421 02 .................. 4-3 R317_01 ................. 3-3 R421 03 .................. 4-3 R317_02 ................. 3-3 R421 04 .................. 4-3 R317_03 ................. 3-4 R430 01 .................. 4-4 R317_04 ................. 3-4 R430 02 .................. 4-4 R317_05 ................. 3-4 R430 03 .................. 4-4 R318_01 ................. 3-4 R430 04 .................. 4-4 R319_01 ................. 3-4 R430 05 .................. 4-4 R321_01 ................. 3-4 R430 06 .................. 4-4 R321_02 ................. 3-5 R440_01 .................. 4-4 0 x Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP Rev. 0 X Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements R440_02 ................. 4-5 R441_01 ................. 4-5 R442_01 ................. 4-5 R442_02 ................. 4-5 R442_03 ................. 4-5 R510_01 ................. 5-1 (Last Page of Front Matter)

WNA-DS-01811-WBT-NP Rev. 0 Ai Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements SECTION 1 INTRODUCTION 1.1 OVERVIEW This document is based on WNA-DS-0 1811 -WBT, Rev. 0, "WINCISE Signal Processing System Design Requirements." Only minor editorial and formatting changes were made. It was created to submit to the Nuclear Regulatory Commission for the Watts Bar Nuclear Unit 2 NSSS Completion Project.

The Westinghouse In-core Information Surveillance & Engineering (WINCISE) System uses signals from in-core Self-Powered Detectors (SPDs) distributed within the reactor core to obtain raw current signals.

The current signals from the detectors, which represent the neutron flux activity at the detectors, are used with other reactor condition data to generate a three dimensional (3-D) indication of core power distribution on a continuous basis. WINCISE is an in-core flux monitoring application that utilizes the Signal Processing System (SPS).

The WINCISE System is an aftermarket application which replaces the plant's movable Fission Chamber detectors with new vanadium fixed in-core detectors to provide on-line 3-D core power information. The number of In-core Instrument Thimble Assemblies (IITAs) can vary by plant, depending on the plant reactor core height design. Typically, this variation is between 36-58 radially distributed IITAs. Each IITA contains [ ]a,, self-powered vanadium neutron detectors, sequentially increasing in length and axially distributed. The IITAs may or may not contain one Type-K core exit thermocouple which is not used by the WINCISE System. Each IITA contains [ ]a,c wires ([ ]'"c detector signals, one common sheath or collector signal), which are routed to one of two WINCISE SPS cabinets, both located inside of containment.

The IITA cables are divided into two independent subsystems or groups (Groups I and 2) to provide redundancy in core power measurements. The signals from the detectors in each IITA are routed to one of the two WINCISE SPS cabinets. The signals are divided between the two cabinets such that all detector signals associated with Group 1 are terminated in one WINCISE SPS cabinet and all the Group 2 signals are terminated in the other. Each cabinet contains the Signal Processing Electronics (SPE) needed to process the analog signals from the SPDs and transmit the digitized data to the external host software.

The SPE contains embedded firmware to convert the low-current analog signals from the detectors to multiplexed digitized data before transmitting it to the external host software. The host software resides in the Application Server computer. The host software provides additional calculations and also converts and transmits the data in a format usable by the core power monitoring software (BEACONTM). The host software also provides data quality status to BEACON.

1.2 SCOPE The system described in this document covers only the WINCISE SPS which takes the low-current signals from the incore SPDs and processes them before passing them to the external host software. The host software performs additional calculations and coverts the data to a format usable by the core power monitoring software (BEACON). Additional requirements on the external host software that processes the WINCISE SPS data for BEACON are contained in WNA-DS-02196-WBT, "BEACON Data WNA-DS-01811-WBT-NP Rev. 0 1-1 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Processing Application Program Software Requirements Specification" (Reference 2). The scope of this document does not cover the IITA, in-core SPDs, detector cabling, BEACON software, or the host software. However, this document does cover the WINCISE SPS design for its in-containment application.

The SPS is part of the WINCISE System. WINCISE has several components; some are safety-related and some are not. 420A90, "WINCISE Functional Specification for Watts Bar Unit 2" (Reference 3) defines and controls these classifications and interfaces for all the individual parts of the WINCISE (including the SPS). This specification was created to support Reference 3 and, therefore, consistently classifies the SPS as non-safety-related. Furthermore, the SPS is not expected to function through a design basis event.

Since the SPS is a non-safety-related system within the safety-related WINCISE, the guidance of IEEE Standard 384-1981, "IEEE Standard Criteria for Independence of Class 1E Equipment and Circuits" (Reference 7) will be followed to prevent the SPS from compromising the integrity of the overall WINCISE System.

1.3 OBJECTIVE The purpose of this document is to define the minimal hardware and system requirements for the WINCISE SPS to support 420A90, "WINCISE Functional Specification for Watts Bar Unit 2" (Reference 3). This specification, in combination with WNA-DS-02196-WBT, "BEACON Data Processing Application Program Software Requirements Specification" (Reference 2),

WNA-DS-02208-WBT, "IIS SPS Datalink Client Software Interface Specification" (Reference 12),

WNA-DS-02194-WBT, "BEACON TM Datalink Interface Specification" (Reference 13), and WNA-DS-02193-WBT, "ICS Datalink Interface Specification" (Reference 14), contains the full scope of the WINCISE SPS design, and forms the basis for subsequent stages of the WINCISE SPS design. These BEACON Data Processing (BDP) application and interface specifications are created as part of the Application Software development activities. The BDP application is generally referred to as the "host software" within this document.

1.4 FORMAT OF THE DOCUMENT Specific requirements are numbered and formatted as follows. Numbers are not necessarily in order; rather, a given requirement will always retain its original number. New requirements may be added in between existing ones, and the new numbers will not be in sequence. All requirements within a document have unique numbers, but the numbers are not unique among different documents. The requirement numbers are indexed so that they can be located easily within the document. Requirements are numbered in the form "Rnnnxx" where "R" designates the item as a requirement, and "nnnxx" is a unique number. The unique number consists of a minimum of five placeholders (e.g., R001_01).

Rnnn xx

[Requirement statements are contained within bracketed [...] areas to clearly distinguish them from other text.]

1-2 Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP Rev. 0 0 1-2 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Guidance: This (optional) text clarifies or explains options for addressing the requirement. This includes guidance for fulfillment of the requirement and any clarifications needed for practical application.

Guidance may cite documents, instructions, methodologies, or procedures to be applied.

Rationale: "Rationale" text, where used, explains the cause or necessity of the requirement to ensure that external influences or expectations for design have a commonly understood basis or purpose.

(Last Page of Section 1)

WNA-DS-01811-WBT-NP Rev. 0 1-3 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements SECTION 2 GENERAL SYSTEM DESCRIPTION 2.1 DESIGN DESCRIPTION The WINCISE SPS contains the following major systems:

" Cabinet Hardware

" SPE

" External Host Software The subsystems contained in the WINCISE SPS cabinet hardware system include:

" Cabinet Power Supplies

" Field Wiring Interface The subsystems contained in the WINCISE SPE system are chassis that include:

  • Communication Network
  • Amplifier Cards

" Card Embedded Software (or Firmware)

" Backplane Card 2.2 MAJOR SYSTEM CAPABILITIES The following sections provide a description of the major function of each of these systems and subsystems.

2.2.1 Cabinet Hardware Design Function The cabinet is designed for non-safety functions and provides data which is used to verify that the plant is operating within technical specification limits.

The cabinet hardware includes the following components:

  • Redundant power supplies for cabinet devices
  • Field wiring termination interface
  • Fiber interface
  • Fans
  • High temperature cutout
  • Analog temperature sensor

" Door switches

" A single cabinet power feed with line filtering and circuit breaker protection

" Signal cabling

" Power cabling WNA-DS-01811-WBT-NP Rev. 0 2-1 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements 2.2.2 Signal Processing Electronics Design Function 2.2.2.1 Communications Network Design Function The communications network is designed to pass data and diagnostic requests between amplifier cards and the external host software. The communications network is made up of the following components:

a,c 2.2.2.2 Amplifier Card Design Function The amplifier card is designed to process in-core Self-Powered Detector signals. The low-level currents enter the cabinet through a field wiring interface, and then pass onto the backplane cards which transmit them onto each amplifier card.

R2222_01

[The amplifier card shall convert low-level current signals to multiplexed digitized signals.]

Guidance: Low-level current signals are proportional to the neutron or gamma flux at the detectors.

S22202 c Rationale: The host software uses diagnostics and calibrated values from the amplifier cards to perform accuracy checks.

R2222_03

[Each amplifier card shall include the components necessary to support on-demand cable leakage calculations.]

Guidance: The host software will perform a leakage resistance calculation for each self powered detector.

Rationale: Leakage resistance requirements are specified in 420A90, "WINCISE Functional Specification for Watts Bar Unit 2," (Reference 2).

WNA-DS-01811-WBT-NP Rev. 0 2-2 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements 2.2.2.3 Card Embedded Firmware Design Function The SPE will have embedded firmware that will reside in the following components:

" Amplifier Card

" Datalink Interface Card R2223_01

[The embedded firmware on the datalink interface cards shall poll each channel on every amplifier card to provide digitized and multiplexed current readings [ a to the external host software.]

R2223_02

[The embedded firmware on the datalink interface card shall transmit cabinet status and environmental indications back to the external host software.]

c]a, R2223_03

[The embedded firmware on the datalink interface cards shall provide module communication status information to the external host software.]

Rationale: The host software uses module status to assign data quality values.

2.3 SYSTEM MODES AND STATES The WINCISE SPS will be capable of operation during normal environmental and plant operating modes.

The testing, calibration, and maintenance requirements of the WINCISE SPS are described in subsections 3.3.2 and 3.3.3.

2.4 MAJOR SYSTEM STATUS 2.4.1 Initialization R241_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be capable of initializing during any allowable operating conditions.]

R241_02

[Initialization shall be completed within [ ]ac of initial Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics startup, or of a restart.]

Guidance: Manual intervention is allowed for restarting the WINCISE SPS. Non-volatile memory is used to support automatic power-up initialization and system restart.

2-3 Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev. Rev. 0 0 2-3 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements R241_03

[The Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics system shall automatically boot up on initial startup or on a manually initiated restart.]

Guidance: Initial startup is defined as introducing power to the WINCISE cabinets. Manually initiated restart is defined as the manual cycling of power to the WINCISE cabinets.

2.4.2 Algorithm Implementation The algorithms to implement the functions for the WINCISE SPS are discussed in the following subsections.

2.4.2.1 Analog Input Processing R242_01

[Input processing on the amplifier cards shall have the capability to provide all variables associated with analog to digital converter failures and/or amplifier card malfunctions to the host software.]

Rationale: The analog input processing on the amplifier cards will provide information for the Host Software to assign data quality values ("bad" data checking).

R242_02

[Input processing on the amplifier cards shall provide information to the Host Software about card zero and reference voltage self-checks to ensure that the card is calibrated and operating within the accuracy range required in subsection 3.2.1.]

Rationale: The analog input processing on the amplifier cards will provide information for the Host Software to assign data quality values and perform accuracy checks.

2.5 DIAGNOSTIC FUNCTIONS The WINCISE SPS equipment will perform a variety of diagnostics and supervisory functions to continuously monitor the correct operation of the system as a whole. Each of the input/output (U/O) modules will have a diagnostic function. The host software monitors the system as a whole by collecting all the diagnostic information and checking the consistency of the hardware configuration, application software, and datalink interfaces.

The supervisory functions are subdivided into the following groups:

" Problem detection

" Signaling the nature of the problem

" Automatic response to problems 2-4 Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP Rev. 0 0 2-4 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements 2.5.1 Communications Interface Diagnostics The WINCISE SPS will be continuously monitored by the Host Software. Any communication failures will be detected by the Host Software and the appropriate error processing will be performed to continue and attempt to establish communications. This scope is captured through requirements in Reference 2.

2.5.2 1/0 Diagnostics R252_01

[The embedded firmware shall automatically check that all modules are operating correctly.]

Rationale: The host software uses module status to assign data quality values.

R252_02

[In the event of a defective or missing module (e.g., during replacement), the module and associated signals shall be flagged to the external host software.]

Rationale: The host software uses module status to assign data quality values.

R252_03

[The Signal Processing Electronics shall run a self-testing diagnostics routine following power-up and periodically during operation.]

Rationale: The host software uses module status to assign data quality values.

R252_04

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall physically prevent a module from being plugged into the incorrect position on the backplane card.]

R252_05

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System firmware shall check that a module plugged into a slot on the backplane card is operable.]

Guidance: Modules that are operable will pass power-up initialization tests.

Rationale: The host software uses module status to assign data quality values.

2.5.3 Data Transfer R253_01

[Data transmission between the embedded firmware and the external host software shall be an on-demand client-server communication protocol.]

WNA-DS-01811-WBT-NP Rev. 0 2-5 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements R253_02

[The Signal Processing Electronics shall use Modbus over TCP/IP protocol.]

Guidance: Modbus Messaging on TCP/IP Implementation Guide (References 4, 5, and 6).

R253_03

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall identify bad communication nodes and mark these modules as bad.]

Rationale: The host software uses module status to assign data quality values.

(Last Page of Section 2)

WNA-DS-01811-WBT-NP Rev. 0 2-6 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements SECTION 3 SYSTEM CAPABILITIES, CONDITIONS, AND CONSTRAINTS 3.1 PHYSICAL 3.1.1 Construction The WINCISE SPS electronics will be installed in WINCISE SPS cabinets within containment and must maintain the operating environment inside the cabinet defined in this section.

3.1.1.1 Cabinet Internal Equipment Operating Environment The cabinet internal equipment shall be designed to operate within the following conditions:

R3111_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System requires that the cabinet environment shall be sufficient to maintain the cabinet internal temperature between I ]a.C during normal plant operation.]

R3111_02

[Upon reaching a cabinet internal temperature of [ ]a,c, the cabinet internal equipment shall shut down to prevent equipment damage.]

Rationale: The first component likely to reach a high temperature threshold is the Power Supply, which is rated to [ . By giving this range, the cabinet equipment will continue to function at least up to [ ]a,* but will shut off before damage occurs.

R3111_03

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System requires that the cabinet environment shall be sufficient to maintain a cabinet internal relative humidity range between [ ]apc]

R3111_04

[Following a cabinet power down due to high temperature, the cabinet internal equipment shall require manual cycling of alternating current (AC) power to restart once the internal temperature has dropped to I ]a," below the shutoff temperature.]

Guidance: Cycling of power can be at the cabinet breaker, or upstream of the cabinet. Upon cycling of power, the cabinet is capable of startup and initialization without further action.

Rationale: A [ ]a~c differential will prevent cycling due to heat rise of the electronics.

WNA-DS-01811-WBT-NP Rev. 0 3-1 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Proeessin2 System Desi2n Requirements 3.1.1.2 Cabinet External Operating Environment R3112_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System cabinet shall be designed to operate within a maximum allowable integrated dose for the Signal Processing Electronics within the cabinet of [ ]a,c.]

Rationale: The radiation environment of the SPS cabinets will be controlled to ensure that the electronics do not receive more than a total integrated dose (TID) of [ ]a,c.

3.1.2 Single Failure Requirements R312_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing Electronics shall be divided evenly between two isolated cabinets.]

Rationale: The IITA cables are divided into two independent subsystems or groups (Groups 1 and 2) to provide redundancy in core power measurements. The signals are divided between the two cabinets such that all detector signals associated with Group 1 are terminated in one WINCISE SPS cabinet and all the Group 2 signals are terminated in the other. This is to prevent any single point of failure creating more than 50% failure of the WINCISE System.

3.1.3 Separation Requirements The WINCISE SPS is designed for two completely separate cabinets that can be placed together in one area or in separate rooms as required.

3.1.4 Isolation Requirements R314_01 a,c K ]

Guidance: Isolation on the amplifier cards electrically isolates the analog front end from the digital back end.

R314_02

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall isolate its output signals.]

ac E

WNA-DS-01811-WBT-NP Rev. 0 3-2 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements R314_03

[The Signal Processing System equipment shall not degrade the operation of the Class lE circuits or equipment.]

Rationale: IEEE Standard 384-1981 (Reference 7), subsection 5.5.3.

3.1.5 WINCISE Cabinet Cable Routing R315_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System cabinet termination area shall be designed for top field cable entry.]

R315 02 Rationale: This is to help minimize electrical noise on the analog input signals.

R315_03 ac 1 ]

3.1.6 System Security R316_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System firmware shall be protected against unauthorized alterations through control of access to the firmware media.]

Guidance: Custom equipment is required to access firmware media.

3.1.7 Electromagnetic Compatibility and Seismic Qualification The WINCISE SPS is not a safety system so it does not need to operate during a design basis seismic event.

R317_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System cabinets shall be qualified for design basis seismic events structural integrity only.]

R317_02

[To consider the fatigue effects produced by a seismic event, the Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics cabinets shall be able to withstand

[ ]apc Safe Shutdown Earthquake (Operating Basis Earthquake) events first to determine the fatigue effects, followed by a Safe Shutdown Earthquake event at the equipment mounting points, without becoming a missile hazard.]

WNA-DS-01811-WBT-NP Rev. 0 3-3 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements R317_03

[During a seismic event, the Signal Processing System's cabinet exteriors shall not deflect more than [ ]apc relative to their mounting points.]

Rationale: LTR-EQ-08-90, "Standard 7721 Seismic Cabinet Deflection-Spacing/Clearance Between Cabinets" (Reference 8).

R317_04

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be qualified for electromagnetic compatibility per Regulatory Guide 1.180, "Guidelines for Evaluating Electromagnetic and Radio-Frequency Interference in Safety-Related Instrumentation and Control Systems" (Reference 9).]

R317_05

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be seismically qualified per Regulatory Guide 1.29, "Seismic Design Classification" (Reference 10).]

3.1.8 Cabinet Mounting R318_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing Electronics cabinet mounting base shall allow for either bolt mounting or welding of the cabinet to the embedment.]

Guidance: Cabinet design allows for either mounting option, however, bolt mounting is preferred.

3.1.9 Cabinet Service and Access R319_01

[Access to Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics components and wiring shall be through front and rear cabinet doors.]

3.2 SYSTEM PERFORMANCE CHARACTERISTICS The WINCISE SPE accuracy and response time requirements are addressed in this section. Firmware compensation for system zero offset and stability, are acceptable procedures for maintaining the stated accuracies.

3.2.1 Accuracy Requirements R321_01

[The maximum measurement uncertainty of the Westinghouse In-core Information Surveillance &

Engineering System Signal Processing Electronics at nominal environmental conditions of Guidance: The stated Signal Processing Electronics measurement uncertainty shall account for errors from signal conversion, data acquisition, and data transmission to the host software.

WNA-DS-01811-WBT-NP Rev. 0 3-4 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements R321_02

[The system shall be capable of withstanding the temperatures, humidity, radiation levels, seismic conditions, and electromagnetic interference conditions expected to be present in the near vicinity of the hardware under all allowable non-post-accident in-containment conditions, without degradation, with a mean time between failures of no less than [ ]aC.]

3.2.2 System Response Times R322_01 ac R322_02 a,c Guidance: The SPS data latency (response time) is defined as the time required for the card edge input to be recognized, processed, and transmitted to the Ovation highway.

3.3 SYSTEM OPERATIONS 3.3.1 Test and Maintenance Function R331_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be designed to permit periodic testing of the Signal Processing Electronics.]

R331_02 a,c I-R331 03

]

a,c Guidance: Diagnostics cannot be acquired without a hand-held test box and a personal computer with I

custom software.

3.3.2 System Testing Requirements R332_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be tested to ensure that it meets host software requirements.]

Rationale: Host software requirements are specified in WNA-DS-02196-WBT, "BEACON Data Processing Application Program Software Requirements Specification" (Reference 2).

WNA-DS-01811-WBT-NP Rev. 0 3-5 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements 3.3.3 System Testing, Calibration, Maintenance R333_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System design shall permit periodic checking, testing, calibration, and calibration verification.]

Guidance: Each SPE card is tested and calibrated at time of production.

R333 02 .ac K

Guidance: The intent of this requirement is to state that the SPE cards can be monitored, or removed/inserted while the cabinet is powered.

R333_03

[Automatic on-line surveillance tests shall continuously check for specified hardware and firmware malfunctions in the Westinghouse In-core Information Surveillance & Engineering System amplifier and datalink interface modules.]

R333_04

[Automatic on-line surveillance test results shall be available to the host software.]

R333_05 a c

R333_06 a R333_07 I

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System amplifier cards shall incorporate normal and common mode rejection of [ ]aC]

R333_08 _a 3-6 Westinghouse Non-Proprietary Class 3 WNA-DS-01811-WBT-NP Rev.

WNA-DS-01811-WBT-NP Rev. 0 0 3-6 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements 3.3.4 System Availability 3.3.4.1 Operability Requirements R3341_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be capable of operating during plant power operations.]

(Last Page of Section 3)

WNA-DS-01811-WBT-NP Rev. 0 3-7 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements SECTION 4 SYSTEM INTERFACES R004_01

[Each Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics cabinet shall interface with incore Self-Powered Detectors.]

R004_02

[Each Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics cabinet shall interface with the vital bus power supply system.]

Rationale: Vital bus power supply supports the IEEE 384 analysis per WNA-CN-00157-WBT, "WB2 IIS SPS Isolation Requirements Calc Note" (Reference 15).

R004_03

[Each Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics cabinet shall interface with the Application Servers that house host software.]

Rationale: Each WINCISE SPS cabinet will provide detector data and cabinet equipment status information to the host software.

R004_04

[The embedded firmware in the Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics shall provide hardware system status data to the Application Servers that house host software.]

4.1 POWER INTERFACE REQUIREMENTS R041_01

[Westinghouse In-core Information Surveillance & Engineering Signal Processing System cabinet hardware shall be designed to accept power sources of either 120 Volts of alternating current (VAC)

+/-10 percent at 60 Hz or 230 VAC +/-10 percent at 50 Hz.]

R041_02

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be protected from noise on its power inputs.]

Guidance: Use of the Standard Safety Input Line Filter Assembly within the WINCISE SPS will meet these system requirements.

R041_03

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be protected from surges on its power inputs.]

Guidance: Use of the Standard Safety Input Line Filter Assembly within the WINCISE SPS will meet these system requirements.

WNA-DS-01811-WBT-NP Rev. 0 4-1 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements R041_04

[After a surge the Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall perform its functions and meet its performance limits without repair or calibration.]

R041_05

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be protected from over-voltage on its power inputs.]

Guidance: Use of the Standard Safety Input Line Filter Assembly within the WINCISE SPS will meet these system requirements.

R041_06

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall be protected from over-current on its power inputs.]

Guidance: Use of the Standard Safety Input Line Filter Assembly within the WINCISE SPS will meet these system requirements.

R041 07 ac R041_08 ac

.F 4.1.1 Power Source Requirements R411_01

[Each power supply in the Westinghouse In-core Information Surveillance & Engineering Signal Processing System cabinet shall be powered from a vital bus power source as follows:

a,c K I ]

WNA-DS-01811-WBT-NP Rev. 0 4-2 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Rationale: Vital bus power supply supports the IEEE 384 analysis per WNA-CN-00157-WBT, "WB2 IIS SPS Isolation Requirements Calc Note" (Reference 15).

4.1.2 Power Load Requirements R412_01

[Power supply and associated cooling systems shall be designed to operate at no more than ac of capacity at nominal environmental temperature conditions.]

4.1.3 Chassis Power Requirements R413_01

[Power requirements for each Westinghouse In-core Information Surveillance & Engineering System Signal Processing Electronics chassis shall be:

ac K j]

Rationale: This states what each chassis will consume. The remaining cabinet power is used for miscellaneous cabinet hardware such as switches, sensors, fans, etc.

4.2 INPUT SIGNALS 4.2.1 Analog Input Signals R421_01 ac I.

Rationale: This configuration maintains detector signal separation.

R421_02 ac K

R421 03 1I K

Rationale: The host software will trigger an alarm when the cabinet intemal temperature reaches

]a,c, indicating that signal quality may be degraded.

[

R421_04

[The Westinghouse In-core Information Surveillance & Engineering System amplifier modules shall be designed such that test signals may be easily introduced to the system without disturbing the field wiring.]

WNA-DS-01811-WBT-NP Rev. 0 4-3 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements Automation Services WINCISE Signal Processing System Design Requirements 4.3 OUTPUT SIGNALS R430_01 ac I_

R430_02 2

[Each master datalink interface card shall provide digitized signals from the Westinghouse In-core Information Surveillance & Engineering System Self-Powered Detectors to the host software.]

ac E

R430_03 I_

R430_04 ac R430_05 I

R430_06 I

4.4 INTERNAL PANEL WIRING This section provides requirements for wiring and cable routing within the WINCISE SPS cabinet.

R44001

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall use fire-retardant cable within the cabinets.]

WNA-DS-01811-WBT-NP Rev. 0 4-4 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design ReQuirements R440_02

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System shall use halogen-free cable within the cabinets.]

4.4.1 Power Wiring R441_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System individual module power supplies shall be protected from external faults.]

4.4.2 Grounding Wiring R442_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System grounding within the cabinet shall have a protection ground.]

F-R442 02 R442 03 ac I ]

(Last Page of Section 4)

WNA-DS-01811-WBT-NP Rev. 0 4-5 Westinghouse Non-Proprietary Class 3

Automation Services WINCISE Signal Processing System Design Requirements SECTION 5 PACKING AND TRANSPORTATION REQUIREMENTS 5.1 PACKING, SHIPPING, AND RECEIVING REQUIREMENTS The WINCISE equipment is sensitive to environmental conditions and requires measures for protection from the effects of temperature extremes, humidity, and physical damage.

R510_01

[The Westinghouse In-core Information Surveillance & Engineering Signal Processing System equipment shall be packed, shipped, and stored as per Level B requirements of ASME NQA-1 1994, "Quality Assurance Program Requirements for Nuclear Facilities" (Reference 11).]

(Last Page of Section 5)

WNA-DS-01811-WBT-NP Rev. 0 5-1 Westinghouse Non-Proprietary Class 3

Attachment 21 Westinghouse Electric Company CAW 3217, Application for Withholding Proprietary Information from Public Disclosure, WNA-DS-01811-WBT-P, Revision 0, "WINCISE Signal Processing System Design Requirements" (Proprietary)

OWestinghouse Nuclear Services Westinghouse Electric 1000 Westinghouse Company Drive Cranberry Township, Pennsylvania 16066 USA U.S. Nuclear Regulatory Commission Direct tel: (412) 374-4643 Document Control Desk Direct fax: (724) 720-0754 11555 Rockville Pike e-mail: greshaja@westinghouse.com Rockville, MD 20852 Proj letter: WBT-D-3330 CAW-1 1-3217 August 4, 2011 APPLICATION FOR WITHHOLDING PROPRIETARY INFORMATION FROM PUBLIC DISCLOSURE

Subject:

WNA-DS-01811-WBT-P, Rev. 0, "WINCISE Signal Processing System Design Requirements" (Proprietary)

The proprietary information for which withholding is being requested in the above-referenced report is further identified in Affidavit CAW- 11-3217 signed by the owner of the proprietary information, Westinghouse Electric Company LLC. The affidavit, which accompanies this letter, sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b)(4) of 10 CFR Section 2.390 of the Commission's regulations.

Accordingly, this letter authorizes the utilization of the accompanying affidavit by Tennessee Valley Authority.

Correspondence with respect to the proprietary aspects of the application for withholding or the Westinghouse affidavit should reference this letter, CAW- 11-3217, and should be addressed to J. A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company LLC, Suite 428, 1000 Westinghouse Drive, Cranberry Township, Pennsylvania 16066.

Very truly yours,

)J.A. Gresham, Manager Regulatory Compliance Enclosures

CAW-1 1-3217 AFFIDAVIT COMMONWEALTH OF PENNSYLVANIA:

ss COUNTY OF BUTLER:

Before me, the undersigned authority, personally appeared J. A. Gresham, who, being by me duly sworn according to law, deposes and says that he is authorized to execute this Affidavit on behalf of Westinghouse Electric Company LLC (Westinghouse), and that the averments of fact set forth in this Affidavit are true and correct to the best of his knowledge, information, and belief:

A. Gresham, Manager Regulatory Compliance Sworn to and subscribed before me this 4th day of August, 2011 Notary Public COMMONWEALTH OF PENNSYLVANIA Notarial Seal Cynthia Olesky, Notary Public Manor Soro, Westmoreland County My Commission Expires July 16, 2014 Member. Pennsvlvania Association of Notaries

2 CAW-11-3217 (1) I am Manager, Regulatory Compliance, in Nuclear Services, Westinghouse Electric Company LLC (Westinghouse), and as such, I have been specifically delegated the function of reviewing the proprietary information sought to be withheld from public disclosure in connection with nuclear power plant licensing and rule making proceedings, and am authorized to apply for its withholding on behalf of Westinghouse.

(2) 1 am making this Affidavit in conformance with the provisions of 10 CFR Section 2.390 of the Commission's regulations and in conjunction with the Westinghouse Application for Withholding Proprietary Information from Public Disclosure accompanying this Affidavit.

(3) I have personal knowledge of the criteria and procedures utilized by Westinghouse in designating information as a trade secret, privileged or as confidential commercial or financial information.

(4) Pursuant to the provisions of paragraph (b)(4) of Section 2.390 of the Commission's regulations, the following is furnished for consideration by the Commission in determining whether the information sought to be withheld from public disclosure should be withheld.

(i) The information sought to be withheld from public disclosure is owned and has been held in confidence by Westinghouse.

(ii) The information is of a type customarily held in confidence by Westinghouse and not customarily disclosed to the public. Westinghouse has a rational basis for determining the types of information customarily held in confidence by it and, in that connection, utilizes a system to determine when and whether to hold certain types of information in confidence. The application of that system and the substance of that system constitutes Westinghouse policy and provides the rational basis required.

Under that system, information is held in confidence if it falls in one or more of several types, the release of which might result in the loss of an existing or potential competitive advantage, as follows:

(a) The information reveals the distinguishing aspects of a process (or component, structure, tool, method, etc.) where prevention of its use by any of

3 CAW-1 1-3217 Westinghouse's competitors without license from Westinghouse constitutes a competitive economic advantage over other companies.

(b) It consists of supporting data, including test data, relative to a process (or component, structure, tool, method, etc.), the application of which data secures a competitive economic advantage, e.g., by optimization or improved marketability.

(c) Its use by a competitor would reduce his expenditure of resources or improve his competitive position in the design, manufacture, shipment, installation, assurance of quality, or licensing a similar product.

(d) It reveals cost or price information, production capacities, budget levels, or commercial strategies of Westinghouse, its customers or suppliers.

(e) It reveals aspects of past, present, or future Westinghouse or customer funded development plans and programs of potential commercial value to Westinghouse.

(f) It contains patentable ideas, for which patent protection may be desirable.

There are sound policy reasons behind the Westinghouse system which include the following:

(a) The use of such information by Westinghouse gives Westinghouse a competitive advantage over its competitors. It is, therefore, withheld from disclosure to protect the Westinghouse competitive position.

(b) It is information that is marketable in many ways. The extent to which such information is available to competitors diminishes the Westinghouse ability to sell products and services involving the use of the information.

(c) Use by our competitor would put Westinghouse at a competitive disadvantage by reducing his expenditure of resources at our expense.

4 CAW-1 1-3217 (d) Each component of proprietary information pertinent to a particular competitive advantage is potentially as valuable as the total competitive advantage. If competitors acquire components of proprietary information, any one component may be the key to the entire puzzle, thereby depriving Westinghouse of a competitive advantage.

(e) Unrestricted disclosure would jeopardize the position of prominence of Westinghouse in the world market, and thereby give a market advantage to the competition of those countries.

(f) The Westinghouse capacity to invest corporate assets in research and development depends upon the success in obtaining and maintaining a competitive advantage.

(iii) The information is being transmitted to the Commission in confidence and, under the provisions of 10 CFR Section 2.390; it is to be received in confidence by the Commission.

(iv) The information sought to be protected is not available in public sources or available information has not been previously employed in the same original manner or method to the best of our knowledge and belief.

(v) The proprietary information sought to be withheld in this submittal is that which is appropriately marked in WNA-DS-0 1811 -WBT-P, Rev. 0, "WINCISE Signal Processing System Design Requirements" (Proprietary), dated July 2011, for submittal to the Commission, being transmitted by Tennessee Valley Authority letter and Application for Withholding Proprietary Information from Public Disclosure, to the Document Control Desk. The proprietary information as submitted by Westinghouse is that associated with the Incore Instrument System (IIS) and may be used only for that purpose.

This information is part of that which will enable Westinghouse to:

(a) Assist the customer in providing technical licensing information to the NRC that is required for approval of the Watts Bar Nuclear Unit 2 IIS System.

5 CAW-11-3217 Further this information has substantial commercial value as follows:

(a) Westinghouse plans to sell the use of similar information to its customers for the purpose of licensing in-core instrumentation systems.

(b) Its use by a competitor would improve his competitive position in the development and licensing of a similar product.

(c) The information requested to be withheld reveals the distinguishing aspects of a design developed by Westinghouse.

Public disclosure of this proprietary information is likely to cause substantial harm to the competitive position of Westinghouse because it would enhance the ability of competitors to provide similar calculations, analysis and licensing defense services for commercial power reactors without commensurate expenses. Also, public disclosure of the information would enable others to use the information to meet NRC requirements for licensing documentation without purchasing the right to use the information.

The development of the technology described in part by the information is the result of applying the results of many years of experience in an intensive Westinghouse effort and the expenditure of a considerable sum of money.

In order for competitors of Westinghouse to duplicate this information, similar technical programs would have to be performed and a significant manpower effort, having the requisite talent and experience, would have to be expended.

Further the deponent sayeth not.

PROPRIETARY INFORMATION NOTICE Transmitted herewith are proprietary and/or non-proprietary versions of documents furnished to the NRC in connection with requests for generic and/or plant-specific review and approval.

In order to conform to the requirements of 10 CFR 2.390 of the Commission's regulations concerning the protection of proprietary information so submitted to the NRC, the information which is proprietary in the proprietary versions is contained within brackets, and where the proprietary information has been deleted in the non-proprietary versions, only the brackets remain (the information that was contained within the brackets in the proprietary versions having been deleted). The justification for claiming the information so designated as proprietary is indicated in both versions by means of lower case letters (a) through (f) located as a superscript immediately following the brackets enclosing each item of information being identified as proprietary or in the margin opposite such information. These lower case letters refer to the types of information Westinghouse customarily holds in confidence identified in Sections (4)(ii)(a) through (4)(ii)(f) of the affidavit accompanying this transmittal pursuant to 10 CFR 2.390(b)(1).

COPYRIGHT NOTICE The reports transmitted herewith each bear a Westinghouse copyright notice. The NRC is permitted to make the number of copies of the information contained in these reports which are necessary for its internal use in connection with generic and plant-specific reviews and approvals as well as the issuance, denial, amendment, transfer, renewal, modification, suspension, revocation, or violation of a license, permit, order, or regulation subject to the requirements of 10 CFR 2.390 regarding restrictions on public disclosure to the extent such information has been identified as proprietary by Westinghouse, copyright protection notwithstanding. With respect to the non-proprietary versions of these reports, the NRC is permitted to make the number of copies beyond those necessary for its internal use which are necessary in order to have one copy available for public viewing in the appropriate docket files in the public document room in Washington, DC and in local public document rooms as may be required by NRC regulations if the number of copies submitted is insufficient for this purpose. Copies made by the NRC must include the copyright notice in all instances and the proprietary notice if the original was identified as proprietary.

Tennessee Valley Authority Letter for Transmittal to the NRC The following paragraphs should be included in your letter to the NRC:

Enclosed are:

1. -copies of WNA-DS-01811-WBT-P, Rev. 0, "WINCISE Signal Processing System Design Requirements" (Proprietary)
2. - copies of WNA-DS-01811-WBT-NP, Rev. 0, "WINCISE Signal Processing System Design Requirements" (Non-Proprietary)

Also enclosed is the Westinghouse Application for Withholding Proprietary Information from Public Disclosure CAW- 11-3217, accompanying Affidavit, Proprietary Information Notice, and Copyright Notice.

As Item 1 contains information proprietary to Westinghouse Electric Company LLC, it is supported by an affidavit signed by Westinghouse, the owner of the information. The affidavit sets forth the basis on which the information may be withheld from public disclosure by the Commission and addresses with specificity the considerations listed in paragraph (b) (4) of Section 2.390 of the Commission's regulations.

Accordingly, it is respectfully requested that the information which is proprietary to Westinghouse be withheld from public disclosure in accordance with 10 CFR Section 2.390 of the Commission's regulations.

Correspondence with respect to the copyright or proprietary aspects of the items listed above or the supporting Westinghouse affidavit should reference CAW- 11-3217 and should be addressed to J. A. Gresham, Manager, Regulatory Compliance, Westinghouse Electric Company LLC, Suite 428, 1000 Westinghouse Drive, Cranberry Township, Pennsylvania 16066.

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