ML20101F718

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Forwards Response to Instrumentation & Control Sys Branch Request for Addl Info Re Draft SER Section 7.2.2.4 on Setpoint Methodology.Westinghouse Input to Setpoint Determinations Withheld (Ref 10CFR2.790)
ML20101F718
Person / Time
Site: Beaver Valley
Issue date: 12/21/1984
From: Woolever E
DUQUESNE LIGHT CO.
To: Knighton G
Office of Nuclear Reactor Regulation
Shared Package
ML19274C553 List:
References
2NRC-4-211, NUDOCS 8412270281
Download: ML20101F718 (34)


Text

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4 ) 78 5 41 Nuclear construction Division hinow Robinson Plaza Building 2. Suite 210 Pittsburgh, PA 15205 December 21, 1984 United States Nuclear Regulatory Commission Washington, DC 20555 ATTENTION: Mr. George W. Knighton, Chief Licensing Branch 3 Of fice of Nuclear Reactor Regulation

SUBJECT:

Beaver Valley Power Station - Unit No. 2 Docket No. 50-412 Confirmatory Issue / Question Response Gentlemen:

Attsched is the Duquesne Light Company's res ponse to the Instrumenta-t ion and Control Systems Branch request fo r additional information. The request specifically addressed setpoint methodology and was included in Draf t SER Section 7.2.2.4. This response closes the reque s t in ac cordance with Regulatory Guide 1.105, Section C.6.

Please note that part of the attached response, Enclosure 3, represents the Westinghouse input to setpoint determinations. Enclosure 3 contains proprietary information of Westinghouse Electric Corporation. In conformance with the requirements of 10CFR Section 2.790, as anended, of the Commission's regulations, we are enclosing with this submit t al an applicat ion for with-holding from public disclosure by the Commission.

Correspondence with respect to the affidavit or application fo r wi th-holding should reference CAW-84-97 and should be addressed to R. A. Wiesemann, Manager, Regulatory and Legislative Affairs, Westinghouse Electric Corpora-tion, P.O. Box 355, Pittsburgh, PA 15230.

In accordance with procedures regarding the handling of proprietary information, the following are enclosed:

1. Two (2) copies of the Westinghouse input (Enclosure 3) to the setpoint determinations for Beaver Valley Power Station - Unit 2 (Proprietary Class 2).
2. Two (2) copies of the Westinghouse input (Enclosure 3) to the setpoint determinations for Beaver Valley Power Station - Unit 2 (Non-Proprietary).
3. One (1) copy of Application for Withholding, CAW-84-97 (Non-Proprietary) (Enclosure 5).
4. One (1) copy of Affidavit (Non-Proprietary) (Enclosure 6).
  • W Us a

U;ited Stctco Nuciccr Regulctsry Conunicsion

' Mr. Gerrg3 W. Knight 2, Chisf Page'2 The above referenced -documents are only applicable to the Westinghouse input all of which is contained in Enclosure 3. Should you have any questions regarding this submittal, please contact Mr. R. Fedin at (412) 787-5141.

DUQUESNE LIGHT COMPANY By E. W . Woolever Vice President RWF/wjs At t achment s cc: Mr. B. K. Singh, Project Manager (w/a)

Mr. G. Walton, NRC Resident Inspector (w/a)

COMMONWEALTH OF PENNSYLVANIA )

) SS:

COUNTY OF ALLEGHENY )

.On this m7 /od day of ,

/9f/ , before me, a Notary Public in and for said Commonwealth and County, personally appeared E. J. Woolever, who being duly sworn, deposed and said that (1) he is Vice President of Duquesne Light, (2) he is duly authorized to execute and file the foregoing Submittal on behalf of said Company, and (3) the statements set forth in the Submittal are true and correct to the best of his knowledge.

Notary Public

~

ANITA EI)!ME REITER, NOTARY PUBLIC ROBINSON TOWNSHIP, ALLEGHENY COUNTY MY COMMISSION EXPIRES OCTOBER 20,1986

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Enclosure 6

,  ?- -

- AW-76-60 l AFTIDAVIT CDMM0fraEALTH OF PGN5'd.VANIA:

. ss

.. .. COUNTY OF ALLEGHENY: ,

, .e .

Before me, the, undersigned authority, personally appeared Robert. A. Wissemann, who, being by -me duly sworn according to law, de-poses and says that he is authorized to execute 'this Affidavit on behalf of Westinghouse Electric Corporation ("'Jestinghouse") and that the aver-monts of fact set forth in this Affidavit are true and correct to the

'best of his knowledge, inferination, and belief:' - - .

~

- - Rooert A. Wiesemann, Manager

~.

~

ticensing Programs l

Sworn to and subscribed before,methisI day of $ 4/rd.4d 1976.

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-/ Notary Puclic ..

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p.., , - - , . - _ , . . , , - - - , , - - - - , . . , . , , , , , _ ,,,m._,,..,,,.,,-,-,,,,,__,,_n_

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Enclosure 6 AW-75-60 (1) I am Manager. licensing Programs, in' the Pressurized Water Reactor  !

Systems Division, of Westinghouse Electric Corporation an# as such,  !

I have been specifically delegated the function of reviewing the j proprietary information sought to be withheld frca public dis- l closure in connection with nuclear power plant licensing or rule-

' making proceedings, and as authorfied ~

to apply for its withholding on behalf of the Westinghouse Water Reactor Divisions.

(2) I am making this Affidavit in conformance with the provisions of 10 CFR Section 2.790.of the Cassiission's regulatiens and in con-junction with the Westinghouse application for withholding ac-companying this Affidavit.

(3) I have personal knowledge of the criteria and procedures utilized by Westinghouse Nuclear Energy-Systems in designating infonnation .

.as a trade secret, privileged,or u confidential contnercial or ~ *

. ' financial 1'nformation. - -

(4) ' Pursuant to the provisions ~

of paragraph (b)(4) of Section 2.790

. of the Commission's regulations, the following is furnished for consideration by the Comerission in determining 'dether the in- ,

formation sought to be withheld from public disclosure should be withheld. -

.. (i) The information sought to be withheld'frem p4blic disclosure

. .. . is owned and has been held in confidence by Westinghouse.

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Enclosure 6 AW-76-60 (ii) The infon::ation is' of a type custon:arily held in confide,nce by Westinghouse and not customarily disclosed to the public'.

Westinghousa has 2' rational basis for determining the types of ,

information customarily held in confidence by it and, in that

. connection, utilizes a. system to detennine when and whether to hold certain types of infonnation in confidence. The ap-plication of that system and the substance of that system constitutes Westinghousa policy and provides the rational basis required.

l Under that system, infonnation 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 com-petitive advantage, as follows: , , , ,

(a) The infonnation reveals the' distinguishing aspects af a *

- process (or component, structure, tool, method, etc.) *

, where prevention of its 'use by any of Westinghouse's j competitors without license from Westinghouse constitutes a competitive economic advantage over other companies.

(b) It consists of supporting data, including test data, l '

relative to a process -(or component, structure, tool, method, etc.), the application of which data secures a' 1

competitive economic advantage, e.g. , by optimization or  ;

improved marketability.

.4 *

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l .

l l

l l

l I

  • Enclosure 6 AW-76-60 (c) Its use by a competitor would reduce his expenditure of resources or improve his competitive position in the design, manufheture, shipment, installation, assurance .

, .. of quality, or licensing a similar product.

(d) It reveals cost or pricg'1nfonnation, production cap-acities, budget levels, or comercia1 :;trategies of Westinghouse, its customers or suppliers.

(e) It reveals aspects of past, present, or f"utura We..t-inghouse,or customer funded development plans and pro-grams of potential comercial valua to Westinghouse.

t (f) It contains patentable ideas, for which patent pro .

)

~

taction may be desirIble. ,

- (g) It is not the propierty of Westinghouse, but must be treated'as proprietary by Westinghouse according to -

agreements with the owner. .

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

3 .

1 (a) The use of such infonnation by Westinghcuse gives

-- Westinghouse a competitive advantage over its ccm- ,

petitors. It is, therefore, withheld from disclosure e .

- to protact the Westinghousa competitive position.

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, _ - , . - . ~ . . -.,--,, - - ,-- _,.,w -c.-mw-v--------_.w,m.--_,,,,-.-.,w_.---- -

. ~',* Enclosure 6  ;

-i- AW-76-60 l

, (b) It is ,information which is marr.et'able in many ways.

The extent to Wica such infomation is available to

. competitors diminishes the Westinghouse ability to ,

sell products and servicss involving the use of the infonsation.

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

(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 infor-

- . mation, any one component may,be the key to the entire ,

puzzle, thereby depriving Westinghouse of a competitive advantage. -

i 4

'

  • I(e) Unrestricted disclosure would jeopardize the p,osition of prominence of Westinghous5 in the world market, and thereby give a market advantage to the competition
in those countries.

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

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. - . . . - - - - - - . . . - . - - _ _ _ _ _ , , . ~ _ . - , , _--,,,n,.__-

i Enclosure 6

.b' AW-75-60 (iii) The information is being transmitted to the Cocaission in confidence and, under the provisions of 10 C.*R Section 2.790, it is to be received i.n confidence by the Comission. -

(fy) - The 'nformation is not avafiable in public sources to the

.- best"of our knowledge and be-1Jef.

(v) The proprietary information sought to be withheld in this sub-mittal is that which is appropriately marked in the attach- ,

ment to Westinghouse letter number NS-CE-1298, Eicheidinger to Sto1~z, dated December 1,1g76, concerning information relating

. to NRC review of WCAP-8567-P and WCAP-8558 entitled, " Improved ,

. Thermal Design Procedure," defining the sensitivity of DNS ratio p various core parameter:. The letter and attachment are being submitted in response to the NRC request at the October 29,1g76 NRC/Wastinghcuse meeting.

This information eitables Westinghouse to: .

i (a) Justify the Westinghouse design.

(b) Assist its customers to obtain licenses. _

~

(c) Meet warranties.

. (d) Provide greater operational flexibility to customers l

assuring them of safe and reliable operation. f l

(e) Justify increased power capability or operating margin l

for plants while assuring safe and reliable operation. l i .

l 1

a .

. Enclosure 6 i- s .

AW-75-50 (f.) Optimi:e reactor design and performance while maintaining a high level of fuel integrity.

Further, the infomation gained from the improved themal design procedure is of significant comercial value as follows:

.M (a) Westinghouse uses. the infonnation to perform and justify analyses which are sold to customers. -

. (b) Westinghouse sells analysis servicas based upon the experience gained and the methods developed. .

Public disclosure of this information concerning design prol

. cedures is likely to caug_e substantial harm to the competitive position of Westinghouse because competitors could utiiize'

'] ,

this information to assess and justify their own designs-without comunensurate eEpense.

The parametric analyses 2erformed and their evaluation represent a considerable amount of highly qualified development effort.

This work was contingent upon a design method development pro-O gram which has been underway during the past two years. ,

) Altogether, a substantial amount of money and effort has been expended by Westinghouse.which could only be duplicated by a -

-- competitor if he were to invest similar sums of money and pro-vided he had the appropriate talent available. .

- . s .

Further the deponent sayeth not. ,

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,, Enclosure 3 j POWER RANGE, NEUTit0N FLUX-NIGN SETPOINT ,

- ,,+a , c

PEA = M-SCA =

i SPE =

l STE =

SD =

EA =

i

RCA =

! RCSA =

RTE =

I RD =

4 j INSTRUNENT SPAN = 120.00 ERTP SAFETY ANALYSIS LINIT = 118.00 XRTP l

4 l

l l

l 1 0F 23 l

l I '

i . _ . --. - - .

Enclosure 3 POWER RANGER NEUTRbN PLUX-LOW SETPOINT -

.+a,c PMA =

PEA =

SCA =

SPE =

STE =

SD =

EA =

RCA = '

RCSA =

RTE =

RD =

L INSTRUMENT SPAN'= 120.00 XRTP SAFETY ANALYSIS LIMIT = 35.00 XRTP 2 0F 23 9

NON-PROPRtETARY

Enclosure'3.

POWER RANGE, NEUTRON FLUK-HIGH POSITIVE RATE

+a,c PMA = ,

PEA =

I SCA =

l SPE =

STE =

50 =

I EA =

\ RCA = '

RCSA =

RTE =

=

i RD INSTRUMENT SPAN = 120.00 ERTP 1

SAFETY ANALYSIS LIMIT = NOT USED KRTP l

I 3 0F 23 e

l l

-Enclosure 3 POWER RANGE, NEUTRON PLUX-MIGH NEGATIVE RATE

+a,c PNA = ,

PEA =

SCA =

SPE =

STE =

SD =

EA =

RCA =

RCSA =

RTE =

RD =

INSTRUNENT SPAN = 120.00 XRTP SAFETY ANALYSIS LIMIT = 6.90 XRTP 4 0F 23 MO M ROPE

, Enclosure 3 INTERMEDIATE RANGE NEUTRON FLUX

,+a,c

PEA =

SCA =

l SPE =

STE =

SD =

EA =

RCA =

RCSA =

RTE =

RD =

1 l INSTRUMENT SFAN = 120.00 XRTP j S AFETY AN ALYSIS LIMIT = NOT USED XRTP i

t 5 0F 23 t

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e .

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.. Enclosure 3 SOURCE RANGE, NEUTRON PLUX ~

. +a,c PMA =

PEA =

SCA =

I SPE =

STE =

SD =

EA =

RCA =

l RCSA =

1 i

1 RTE =

' RD =

INSTRUMENT SPAN = 1000000.00 CPS l SAFETY ANALYSIS LIMIT = NOT USED CPS 4

6 0F 23 NON-PROPRN

. ,- Enclosure 3 OVERTEMPERATURE DELTA.T .

DELTA T Tavg PRESS DELTA I .

PEA =

SCA =

l j SPE =

l STE =

,[ SD =

! EA =

RCA =

I RCSA =

RTE =

j RO =

INSTRUMENT SPAN = 101.10 DEG.

l SAFETY ANALYSIS LINIT = AS NOTED IN FIGURE 15.0-1 0F FSAR

,[ +a,c i

3 4

1

7 0F 23 i

NON-?ROPRIETARY

Enclosure'3 i

'0VERPOWER DELTA T DELTA T Tavg

PNA =

PEA =

1 SCA =

SPE =
.STE =

50 =

j' EA = '

R t. A =

! RCSA =

RTE =

RO =

INSTRUMENT SPAN = 101.10 DEG.

l ..

SAFETY ANALYSIS LIMIT = AS NOTED IN FIGURE 15.0-1 0F FSAR l

8 0F 23 4

{\f-

Enclosure 3 PRESSURIZER PRES $URE LOW '

_+a,c

, PMA = .

PEA =

SCA =

j SPE =

i STE =

SD =

{

! =

EA

{ RCA = '

! RCSA =

I' RTE =

RD =

4 INSTRUMENT SPAN = 800.00 PSIG SAFE,TY ANALYSIS LIMIT = 1920.00 PSIG

, +a c 9 0F 23 NON-?ROPRSRY

.,- Enclosure 3

I 4

l PRESSURIZER PRES 5URE HIGH ,

- _ +a,c PMA =
PEA =

1 .

SCA =

l SPE =

STE =

l 50 =

EA =

RCA =

i RCSA =

} RTE =

i i RD =

i -

I INSTRUMENT $ PAN = 800.00 PSIG SAFETT ANALYSIS LIMIT = 2445.00 PSIG i

  • [ ..]

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}

4 10 0F 23 i

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- A 4

I

, Enclosure 3 PRES $URIZER W4TER' LEVEL - HIGN .

1 - +a,c PMA = ,,

PEA =

SC4 =

t

SPE =

i STE =

50 =

EA =

RCA =

RCSA =

RTE =

RD =

~

l 4

INSTRUMENT SPAN = 100.00 ISPAN SAFETY ANALYSIS LIMIT = NOT USED XSPAN i

i l

a-i i

i 11 0F 23 i

i i

'l

%0M_PROPR69' i

.,. Enclosure-3 ,

LOSS OF FLOW

- . _+a ,c PMA =

PEA =

-SCA =

SPE =

l STE-=

i i 50 =

! EA =

l RCA =

RCSA =

5 RTE =

RD =

1 -

) . INSTRUMENT SPAN = -120.00 X FLOW

SAFETY ANALYSIS LIMIT = 87.00 X FLOW I

i i

12 0F 23

.s .

1 i

l NON.PROPR M- \[

,,. . Enclosure 3

. STEAN GENERATOR WATER LEVEL-LOW, LOW .

. _+a,c i PMA =

PEA =

.l SCA =

SPE =

STE =

SD =

1 EA = -

f RCA = <

l RCSA =

i RTE =

b R3 =

j INSTRUNENT SPAN = 100.00  % SPAN

{ SAFETY ANALYSIS LINIT = .00  % SPAN i

1 i

i 13 0F 23 1

)

1 .

l NOM-PROPRlETARY

3 : .3

. Enclosure 3_.

-STEAM FLOW / FEED F(OW MISMATCH ,

STM FLOW STM PRES FO FLOW -

,4,,c.

PEA =

, SCA = .

, SPE =

l STE =

SD =

f EA =

]

j RCA =

l RCSA =

RTE.=

RD =

il t

l INSTRUMENT SPAN = 120.00 t STM FLOW i

SAFETY ANALYSIS LIMIT = NOT USED X STM FLOW i

  • [ ]% ,c i

i l

I j 14 0F 23 i -

I J

,. Enclo:ure:3 CONTAINMENT PRESSURE MIGM-2 ,

- .+a,c PMA = ,

PEA =

SCA =

SPE =

STE =

SO =

EA =

RCA = ,

RCSA =

RTE =

RD =

INSTRUMENT SPAN = 70.00 PSIG SAFETY ANALYSIS LIMIT = 10.00 PSIG 15 0F 23

! N04pROPRO'9'I 1

,- Enclosure 3 CONTAINNENT PRESSURE NIGN-1

. ,+ a.c PNA = ,

PEA =

SCA =

SPE =

STE =

SD =

EA =

RCA =

RCSA =

RTE =

RO =

INSTRUNENT SPAN = 70.00 PSIG SAFETY ANALYSIS LINIT = 1.50 PSIG l

i 16 0F 23 l

-PROPR\EIAN

s

.. Enclosure 3 PRESSURIZER PRE 55URE LOW- SI .

+a,c PMA =

PIA =

SCA =

SPE =

STE =

SD =

E4 =

RCA =

RCSA =

RTE =

RO =

INSTRUMENT SPAN = 800.00 PSIG SAFETY ANALYSIS LINIT = 1745.00 PSIG 17 0F 23

s. .v,

^'

  • " ' ' g g 6 .

,; , . ',' k , d [ I i

l

,. EncloIura 3' STEAN GENERATOR WATER LEVEL - LOW ,

- . +a,c PMA = ,

PEA =

SCA =

SPE =

STE =

50 =

EA =

RCA =

RCSA =

RTE =

RD =

4 INSTRUNENT SPAN = . 100.00 K $ PAN SAFETY ANALYSIS LIMIT = NOT USED X SPAN

  • [ 3+a,c i

l

18 0F 23 -

! pog.7goPR(ETARY

,., Encic;ure 3 CONTAINMENT PRES 5URE - INTERMEDIATE - MIGM-MIGM ,

- . +a,c PMA =

PEA = -

SCA =

SPE =

STE =

SD =

FA =

RCA = ,

RCSA =

RTE =

RD =

~

INSTRUMENT SPAN = 70,00 p$gg 54FETT ANALYSIS LIMIT = 5.00 PSIG 19 0F 23 .

l N0iMh0M" l

,,- Enclocura 3 TAVG LOW-LOW ,

. _ +a.c PMA = ,

PEA =

SCA =

SPE =

STE =

50 =

EA =

RCA =

RCSA =

RTE =

RD =

=

INSTRl; DENT SPAN = 100.00 DEG.

SAFETY ANALYSIS LIMIT = NOT USED DEG.

20 0F 23 i

1 I

i i

k

.,. Enclosure 3 STEAMLINE PRE 55URE - LOW ,

- . +a,e PMA = ,

PEA =

SCA =

SPE =

STE =

50 =

EA =

.RCA = ,

RCSA =

RTE =

RD =

INSTRUMENT SPAN = 1200.00 PSIG SAFETY ANALYSIS LIMIT = 329.00 PSIG 21 0F 23

Enclosure 3 s

STEAM GENERATOR WATER LEVEL - MIGN,MIGN '

, . +a,c PMA =

PEA =

SCA =

SPE =

STE =

50 =

EA =

RCA =

RC5A =

RTE =

RD =

INSTRUMENT SPAN = 100.00  % SPAN SAFETY ANALYSIS LIMIT = 80.00 X SPAN 2g 0F 23 -

i OB-PRO 1

- - - - . - - - - - ---__.s

., Enclo:ure 3 NEGATIVE STEAN PRESSURE RATE

+a,e

  • PMA =

PEA =

SCA = ,

SPE =

STE =

SD =

EA =

RCA =

RCSA =

RTE =

RD =

INSTRUMENT SPAN = 1200.00 PSI SAFETY ANALYSIS LIMIT = NOT USED PSI 23 0F 23 O

d

[

ENCLOSURE 4 i

Undervoltage - Reactor Coolant Pumps * '

PMA !='- SPE = ~ - - EA =- RTE = 0.5 PEA = - .STE =- RCA = 0.5 RD = 1.0

- SCA ,= 0.5 SD - = 5.0 RCSA = 0.25 f

Instrument. Span = N/A Safety Analysis Limit; = Operable.UV Setpoint

-* Errors are in percent of setpoint value 1

Underfrequency - Reactor Coolant Pumps

RCA = 0.5 RD = 1.0

- SCA = 0.5 SD = 0.034 RCSA = 0.25 t Instrument Span = N/A Safety. Analysis Limit = 57.0 Hz

  • Errors are in percent of setpoint value i

Refueling Water Storage Tank Level - Low PMA =- SPE =- EA = 0.52 RTE = -**

PEA = -*: STE = ** RCA = 0.5 ,

RD = 1.0 SCA = 0.83 SD = 0.79 RCSA = 0.42 i

Instrument Span = 144" Safety Analysis Limit = 772' - 9" 1 4" -

  • Included in SCA value ,
    • Included in EA value Bus Undervoltage and Degraded Voltage

SCA. = 0.5 SD = 5.0 RCSA = 0.25 Instrument' Span = N/A . ,

' . Safety Analysis Limit = Operable UV or degraded Volt Setpoint i

~* Errors are in percent of setpoint value Page 1 of 2 l

Turbine Driven Auxiliary Feedwater Pump Discharge Pressure - Low *

'PMA =- SPE =- EA = 25 RTE = -***

=- =-

PEA = ** STE = *** RCA RD SCA = 6.1 SD = Negligible ~ RCSA = 6.1 Instrument Span = 0 - 250 psig Safety Analysis Limit = Not used

  • Errors in psig
    • Included in SCA value

' *** Included in EA value Containment Pressure SPE = 0.86 psig or 1.2% span Other errors as shown in Enclosure 3 Page 2 of 2 i