ML18053A682

Rev 0 to Engineering Analysis Worksheet EA-RJC-88-01, Calculation of Loop Accuracies for Rosemount Transmitters During Small Break Loca

ML18053A682
Person / Time
Site:	Palisades
Issue date:	11/22/1988
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18053A680	List: ML18053A679 ML18053A681 ML18053A682 ML18053A683 ML18053A684
References
EA-RJC-88-01, EA-RJC-88-1, NUDOCS 8812060089
Download: ML18053A682 (8)

Text

OC1188-0207-NL02

E:12(>1 050002!5!'5 PDC ENCLOSURE 2 Consumers Power Company Palisades Plant Docket 50-255 December 1, 1988 CALCULATION OF LOOP ACCURACIES FOR ROSEMOUNT TRANSMITTERS DURING A SMALL BREAK LOCA 7 Pages

(@,

consumers Power l'llWEIU"5 M.ICHlfiAtn PftlllilUSS Title Ca]cu]atjon of small break LOCA.

Rev Descr1pt1on 0

Original Issue See the attached

~

Form 3619 9-87 PALISADES NUCLEAR PLANT ENGINEERING ANALYSIS WORKSHEET EA - RJC-83-01 Sheet of ~'--~-

] oop accm:acj es for: Bosemi:rnn t: t:r:ansmitters d11rfog a INITIATION AND REVIEW 1n1t1ated ln1t1ator Review Method Check {J)

Technically Reviewed Reviewer Appd Alt Det Qua I Appd By Date By Cale Rvw Test By Date By A I 4._ l.1iJ /,/ ZI J/J. rd..:;;'

./

JIA..,.,.~

,,-( l~fltl ~

\\

sheets 2-7 for Analysis.

~

consumers Power company b"ective NUCLEAR OPERATIONS DEPARTMENT Analysis Continuatfon Sheet EA - RJC-88-01 Sheet 2

of 7

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• To calculate loop accuracies for a number of different indicating loops.

The loops for which calculations are to be performed are:

1.

PT-0105A & B

2.

PT-0104A & B

3.

PT-0751A-D and PT-0752A-D

4.

PT-1805A and PT-1812A

5.

LT-0103

6.

PT-1814 and PT-1815 The accuracies will be calculated for a small brea_k Loss of Coolant Accident (LOCA) only.

Analysis Input

1.

EA-KAT-87-01 (Vendor Drawing E-48 Sh 6DT} for methods. receivers. readability accuracies. spans and ranges

2.

EA-RLS-87-01 (Vendor Drawing E-48 Sh 6ED) for new spans and ranges

3.

Rosemount data sheet specifications for computing instrument error resulting from harsh environments 4.* FC-567 core cooling instrumentation for new control-span on PT-0105A & B

5. Technical Specification Surveillance Procedure RI-69 *subcooling Margin Monitor* for accuracy on SMM-0114 and _SMM-0124.

Assumptions

1. The use of Rosemount error specifications is conservative sfoce Rosemount LOCA testing environment is significantly more harsh than the Palisades small break LOCA environment.

2. Radiation effects on the transmitter loop during a small break LOCA are insignificant and neglected.

During a small break LOCA no fuel failure is postulated. thus no large radiation fields will be present.

References 1 *. EA-KAT-87-01 (Vendor Drawing E-48 Sh 6DT}

2.

EA-RLS-87-01 (Vendor Drawing E-48 Sh 6ED)

3. 950 M206B Sh 4 Instruction Manual (includes specifications on accuracy) for Rosemount 1153D

4.

950 M206B Sh 16 Instruction Manual (includes specifications on accuracy) for Rosemount 1154

5. 950 M206AC Sh 6 - EEQ file for PT-1814 and PT-1815 Analysis This analysis will be broken up into sections as divided in the objective. For similar loops one calcula-tion will be performed which applies to all the loops. Table 1 summarizes the accuracies in engineering units.

Total 19op error is comprised of errors associated with: a) transmitter as a result of harsh environment.

b) the indicator as a result of normal environment and c) the indicator readability.

~r*iqq_1661A-TC01.

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consumers Power company

~Analysis (continued)

NUCLEAR OPERATIONS DEPARTMENT Analysis Continuation Sheet The following will define these three components:

ExMTR = Transmitter as a result of environment ERCVR = Normal indicator error ER

= Indicator readability error EA - RJC-88-01 Sheet 3

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The transmitter harsh environment error is quite large relative to the transmitter's normal environment error. The harsh erro.r masks the normal environment error, therefore the normal environment error will be neglected.

The transmitter harsh environment error is composed of two components, error associated with radiation and*

error associated with temperature/steam.

As.stated in Assumption 2, the radiation present in a small break LOCA is minimal and the radiation error is negligible and* will not be used for these calculations.

Rosemount has*performed qualification of transmitters to IEEE-323-1974 as stated in References 3 and 4.

Reference 3 is for Model 1153 transmitters and Reference 4 is for.Model 1154 transmitters. Reference 3 will also be used for Model 1152 transmitters. Based on References* 3 and 4, the following formulas will be used to calculate ExMTR*

1152/1153 - ExMTR = +/- (4.5S URL + 3.5S SPAN) 1154

- ExMTR = +/- (2.5S URL + 0.5S SPAN)

These formulas will be used for all cases with' the exception of PT-1805A, PT-1812A, PT-1814 and PT~1815.

These transmitters are located outside the containment. They are not affected by small break LOCA and accuracy will be the transmitters normal error. The norinal error for PT-1812A and PT-1805A is +/- 0.25S CS per References 3 and 4 for the respective model.

For PT-1814 and PT-1815 the normal error is 0.5S CS per Reference 5.

The loop error* will be calculated using the root-sum square (RSS) method for combination of ExMTR and ERCVR*

Then the readability error will be added and the result will be loop error, EL*

Conclusion Table 1 summarizes the findings of calculations performed for the transmitter loops. These errors are con-sidered extremely conservative for the small break LOCA condition.

MI1188-1661A-TC01

(§) cansumen Power NUCLEAR OPERATIONS DEPARTMENT EA - RJC-88-01 company Analysis Continuation Sheet Sheet 7

TABLE 1 TOTAL ERROR TRANSMITIER RECEIVER SPANS SB LOCA IO NO LOC IO NO ERCVR EREAO URL cs (CS UNITS)

CALC NO 1 PT-0104A CONT PI-0104

.5% cs ol 3000 PSIG 600 PSIA

+/- 78 PSI 1

2 PT-0104B CONT PTR-0125 1% cs 5 PSI 3000 PSIG 600 PSIA

+/- 84 PSI 2

3 PT-0105A CONT PI-0105A 1% cs 25 PSI 3000 PSIG. 3000 PSIG

+/- 120 PSI 3

PI-0105C 1% cs.

25 PSI 3000 PSIG 3000 PSIG

+/- 120 PSI 3

PI-0104 0.5% cs ol 3000 PSIG 3000 PSIG

+/- 91 PSI 4

SMM-0114 8.5 PSI4. ol 3000 PSIG 3000 PSIG

+/- 91 PSI 11 4 PT-0105B CONT PI-0105B 1% cs 25 PSI 3000 PSIG 3000 PSIG

+/- 120 PSI 5

PI-01050 1% cs 25 PSI 3000 PSIG 3000 PSIG

+/- 120 PSI 5

SMM-0124 8.5 PSI4 ol 3000 PSIG 3000 PSIG

+/- 91 PSI 11 5 PT-0751A3. CONT PIC-0151A 1% cs 10 PSI 1000 PSIG 1000 PSIG

+/- 90 PSI 6

6 PT-1805A 590 HALL LPIR-0382 0.5C cs 1 PSI 300 PSIA 200 PSIA

+/- 3 PSI 7

7 PT-1812A ccw LPIR-0383 0.5% cs 1 PSI 300 PSIA 200 PSIA

+/- 3 PSI 8

8 LT-0103 CONT Ll-0103A 1% cs 1%

288%

100%

+/- 18%

9 Ll-0103B 1% cs.

1%

288%

100%

+/- 18%.

9 9 PT-18142 CCW RM 123 PIA-1814 0.5% cs 0.05 PSI 5 PSIG 5 PSIG

+/-.09 PSIG 10 PT-18152 CCW RM 118 PIA-1815 0.5% cs 0.05 PSI 5 PSIG 5 PSIG

+/-.09 PSIG 10 Notes:

1. Digital meter has ze.ro readability error.

2. This transmitter is a Fisher-Porter. not Rosemount.

Use of Rosemount based errors is expected to bound those for F&P. since errors are very conservatively calculated and applied to Palisades *.

3. This calculation applies to PT-07518-0 and PT-0752A-O.

4. Accuracy frOlll Technical Specification Surveillance Procedure RI-69 (Reference 5).

MI1188-1661A-TC01

consumers Power company Calculation 1 PT-0104 and PI-0104A ERCVR = +/-.5% CS EREAD = 0 NUCLEAR OPERATIONS DEPARTMENT Analysis Continuation Sheet EL

= +/- [.Jf.025 (3000) +.005 (600)] 2 + [.005 (600)) 2 +OJ EL

= +/- 78 PSI Calculation 2. PT-01048.and PTR-0125 ERCVR = +/- 1% CS EREAD = +/- 5 PSI EL

= +/-. [..j[.025 (3000) +.005 (600)) 2 + [.01 (600)] 2 + 5J EL

= +/- 83.3 PSI, round to +/- 84 PSI Calculation 3 PT-0105A and PI-0105A PT-0105A and PI-0105C ERCVR = +/- 1% CS EREAD = +/- 25 PSI

. EL

= +/- [..j[.025 (3000) +.005 (3000)]z + [.Ol (3000)) 2 + 25J EL

= +/- 119.9 PSI, round to +/- 120 PSI Calculation 4 PT-0105A and PI-0104 ERCVR = +/-.5% CS EREAD = +/- 0 EL

= t [..j[.025 (3000) +.005.(3000))2 + [.005 (600))2 +OJ EL

= t 90.1 PSI, round to +/- 91 PSI EA - RJC-88-01 Sheet 5

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consumers Power company Calculation 5 PT~Ol058 and PI-01058 PT-01058 and PI-01050 ERCVR = +/- 1% CS EREAO = +/- 25 PSI NUCLEAR OPERATIONS DEPARTMENT Analysis Continuation Sheet EL

= +/--[~[.025 (3000) +.005 (3000)) 2 + [.01 (3000)) 2 + 25)

EL

= +/- 119.9 PSI, round to +/- 120 PSI Calculation 6 PT-0751A and PIC-0751A ERCVR = +/- 1% CS EREAD = +/- 10 PSI

.EL

= +/- [~(.045 (1000) +.035 (1000)] 2 + [.01 (1000)) 2 + 10)

EL

+/- 90 PSI Calculation 7 PT-1805A and LPIR-0382 ERCVR = +/-.5% CS EREAD = +/- 1 PSI ExMTR = +/-.25% CS EL

= +/- [~[.0025 (200)) 2 + [.005 (200)]2 + 1)

EL

= +/- 2.1 PSI, round to+/- 3 PSI Calculation 8 PT-1812A and LPIR-0383 ERCVR = +/-.5% CS EREAD = +/- 1 PSI EXMTR =.25% CS Et

= z [~(.0025 (200) I 2 + [.005 (200) p + 1]

.EL

= +/- 2.1 PSi, round to.+/- 3 PSI EA - RJC-88-01 Sheet 6

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consumers Power company Calculation 9 LT-0103A and LI-OlO~A LT-0103A and LI-01038 ERCVR = +/- U: CS EREAD = +/- 1%

NUCLEAR OPERATIONS DEPARTMENT Analysis Continuation Sheet EL

= +/- [J[.045 (288) +.035 (100)] 2 + [.001 (100)] 2 + 1]

EL

= +/- 17. 5%, round to +/- 18%

Calculation 10 PT-1814 and PIA-1814 PT-1815 and PIA-1815 ERCVR = +/-.0.5% CS EREAD = +/- 0.05 PSI ExMTR = +/- 0.5% CS EL

• _= +/- !J[.005 (5)] 2 + [.005 (5)] 2 +.05]

EL

= +/-.085 PSI, round to+/-.09 PSI Calculation 11 PT-0105A and SMM-0114 PT-01058 and*SMM-0124

• ERCVR = +/- 8.5 PSI EREAD = 0.

EL

= +/- !J[.025 (3000) +.005 (3000)] 2 + 8.5 2 EL

= +/- 90.4 PSI, round to +/- 91 PSI MI1188-1661A-TC01

.EA - RJC-88-01 Sheet 7

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