ML071620334

GE Ne 0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Revision 0, Instrument Limits Calculation, PPL Susquehanna, LLC Susquehanna Steam Electric Station Units 1 and 2, Main Steam Line High Flow MSIV Isolation

ML071620334
Person / Time
Site:	Susquehanna
Issue date:	01/24/2006
From:	Poulos A General Electric Co
To:	Office of Nuclear Reactor Regulation
References
PLA-6204, TAC MD3309, TAC MD3310 0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Ca
Download: ML071620334 (14)

Text

Attachment 4 to PLA-6204 GE Calculation: Instrument Limits Calculation PPL Susquehanna, LLC Susquehanna Steam Electric Station Units 1 & 2 -

Main Steam Line High Flow MSIV Isolation

GE NE 0000-0038-8052 Susq-EPU-T506-MSLHiFIo-Calc-2006 Revision Number: 0 DRF Folder: 0000-0049-8614 Rev. 0 DRF 0000-0038-8052 January 2006 Instrument Limits Calculation PPL Susquehanna, LLC Susquehanna Steam Electric Station Units 1 & 2 Main Steam Line High Flow MSIV Isolation Preparer:

January 24, 2006 Date Andrew Poulos Verifier:

Robert Copp January 24, 2006 Date A nnrn1,l.

F-l JVF 6i Eli I..U Larry Tucker Date

0000-0038-8052 Susq-EPU-T506-MSLHiFIo-Calc-2006, Rev. 0 IMPORTANT NOTICE REGARDING CONTENTS OF THIS REPORT Please Read Carefully The only undertakings of the General Electric company (GE) respecting information in this document are contained in the contract between PPL Susquehanna, LLC (PPL) and GE, Extended Power Uprate Phase 3 for Susquehanna SES units 1 and 2 contract 305807-C of March 31, 2005, as amended to the date of transmittal of this document, and nothing contained in this document shall be construed as changing the contract. The use of this information by anyone other than PPL, or for any purpose other than that for which it is intended is not authorized; and with respect to any unauthorized use, GE makes no representation or warranty, express or implied, and assumes no liability as to the completeness, accuracy or usefulness of the information contained in this document, or that its use may not infringe privately owned rights.

Page 2 of 12

0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0 Contents:

This document is a supplement analysis data sheet to Reference 1. Included in this document in sequential order are:

• the setpoint function for the system,

• the setpoint function analyses inputs and the source reference of the inputs,

• the device in the setpoint function instrument loop,

• the component analysis inputs and input sources,

• the calculated results,

• input comments and result recommendations,

• references.

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0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0

1. Function: Main Steam Line High Flow MSIV Isolation Setpoint Characteristics:

Definition Reference(s)

Event Protection:

Limiting event for the setpoint Ref. 3.1 Sec. 6.0, Detect and mitigate the consequences of a main Ref. 3.2 Sec. 6.0, steam line break by sending a signal to the PCIS for Ref. 3.3 - Ref. 3.8 a Group 1 isolation (MSIVs).

Function After Earthquake Z

Required El Not Required Ref. 5.1 Setpoint Direction ED Increasing El Decreasing Ref. 3.1, Ref.

3.2, Ref. 5.1, Ref. 3.3 - Ref. 3.8 Single or Multiple Channel EL Single 0

Multiple Ref. 3.1, Ref.

3.2, Ref. 5.1, Ref. 3.3 - Ref. 3.8 LER Calculation Basis if Standard (Conservative) LER Calculation Z, or Ref. 1, Ref. 2, Multiple Channel Configuration Specific LER Calculation El Ref. 5.1 Trip Logic for Configuration n/a Specific LER Calculation Current Function Value/Equation Reference(s)

Limits:

Present Calculation Extended Power Uprate (EPU)

Condition Analytical Limit 125.26 PSID 185.78 PSID Ref. 3.1 Sec.

Ref. 7.1 138% flow 140% flow 7.0 & Attach-ment 1 Sec.

4.8, Ref. 3.2 Sec. 7.0, Ref. 5.1, Ref.

7.1, Ref. 3.3

- Ref. 3.8 Tech Spec Allowable 121PSID Ref. 3.1 Sec. 7.0, Ref. 3.2 Value Sec. 7.0, Ref. 5.1, Ref. 3.3-Ref. 3.8 Setpoint 113PSID Ref. 3.1 Sec. 7.0, Ref. 3.2 Sec. 7.0, Ref. 5.1, Ref. 3.3 -

Ref. 3.8 Operational Limit 99.8 PSID 143.55 PSID Ref. 3.1 Ref. 8.1 127% flow (power uprate)

Sec. 4.5, Ref. 3.2 125%% flow (Turbine Retrofit Project) 127% flow Sec. 4.5, Ref. 2 Ref. 5.1, Ref.

3.3 - Ref. 3.8

(

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0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0

1. Function: Main Steam Line High Flow MSIV Isolation (cont'd) r I

P Plant Data:

Value Present Calculation Value EPU Condition Calculation Sigma if not 2 Reference(s)

Primary Element

" Accuracy (APEA)

+ 0.75%

+ 0.75% of point Ref. 3.1 Ref. 2 (POP),

Comment 9 Sec. 4.6, Ref.

3.2 Attach-ment 1 Sec.

4.6, Ref. 3.3-

= +/- 1.7 PSID

= + 4.2 PSID Ref. 3.8

" Drift (DPEA) n/a n/a Ref. 1, Com-ment 9 Process Measurement

+ 2.8 PSID 0 PSID (bias)

Ref. 3.1 Ref. 2 (bias),

Accuracy (PMA)

Comment 10 Sec. 4.3, Ref.

3.2 Attach-ment 1 Sec.

4.3, Ref. 3.3 -

Ref. 3.8 Components (or Devices) in Setpoint Function Instrument Loop:

" Venturi flow nozzle

" Differential pressure indicating switch Page 5 of 12

0000-0038-8052 Susq-EPU-T506-MSLHiFIo-Calc-2006, Rev. 0

2. Components:

2.1 Differential pressure indicating switch Component Information:

Value/Equation Reference(s)

Plant Instrument ID No.

B21-NO06A-D, B21-N007A-D, B21-N008A-D, B21-Ref. 5.1 N009A-D Instrument vendor ITT Barton(via GE)

Ref. 5.1 Model ID No. (including Range 288A Ref. 5.1 Code)

Plant Location(s)

Reactor Building Elevation 719, Room 1-401 Ref. 5.1 Process Element Venturi Flow Element Ref. 5.1, Ref. 3.1 Sec.

4.6, Ref. 3.2 Sec.

4.6, Ref. 3.3 - Ref.

3.8 Inputs

Vendor Specifications Value / Equation Sigma if not 2 Reference(s)

Top of Scale 200 PSID Ref. 5.1 Bottom of Scale 0 PSID i,

Ref. 5.1 Upper Range Limit 200 PSID

_________Ref. 5.1 Accuracy Accuracy: +/- 1.5% of FS Ref. 5.1

= + 3 PSID Repeatability: +/- 0.2% of FS Ref. 6.1

= + 0.4 PSID Total = +/- 3.026549 PSID Temperature Effect n/a Comment 6 Seismic Effect

+/- 1.37% URL 1

Ref. 6.2, Comment 7

Radiation Effect Negligible Comment 8 Humidity Effect Included in accuracy Comment 4 Power Supply Effect n/a Comment 4 RFI/EMI Effect n/a Comment 4 Insulation Resistance Effect n/a Comment 4 Over-pressure Effect n/a Comment 5, Comment 6 Static Pressure Effect n/a Comment 5, Comment 6 Plant Data:

Value Calib Temperature Range 60 - 100 degF Normal Temperature Range 60 - 100 degF Trip Temperature range 60 - 100 degF Page 6 of 12

0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0 2.1 Differential pressure indicating switch (cont'd)

Plant Data:

Value Plant seismic value 6.5g ZPA (worst case)

Plant Radiation value 0.1 Rad/hour 3.51 x 10' RAID TI D Plant Humidity value Not provided Power Supply Variation value n/a RFI/EMI value n/a Over-pressure value 1350 psig Static Pressure value 1350 psig Drift:

Value Current Calib. Interval 24 Mo.

Vlncludes extra 25%

Desired Calib. Interval 24 Mo. Ellncludes extra 25%

Drift Source LVendor NCalculated Reference~s)

Ref. 5.1, TS 3.3.6.1.4 Ref. 5.1, TS 3.3.6.1.4 Ref. 6.1 Ref. 1, Ref. 2 Drift Value VDM= VA for M = 6 months

+ 1.5% of FS VD = +/- 3.354102% FS

+ 6.708204 PSID Calibration:

Value / equation Sigma if not 3 Reference(s)

As Left Tolerance

+/- 3 PSID Ref. 5.1 As Found Tolerance

+/- 6 PSID Ref. 5.1 Input Calibration Tool:

Differential Pressure test gauge Ref. 5.1, Comment (specifics not provided) 3 Accuracy

+ (1.1)*1% FS = +2.2 PSID Comment 3 Resolution / Readability Included in accuracy Comment 3 Minor Division Not specified Comment 3 Upper Range 200 PSID Comment 3 Temperature Effect Included in accuracy Comment 3 Input Calibration Standard:

Not provided Ref. 5.1 Accuracy

= Input Calibration Tool accuracy Comment 3 Resolution / Readability Minor Division Upper Range Temperature Effect Page 7 of 12

0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0 2.1 Differential pressure indicating switch (cont'd)

Value / equation Sigma if not 3 Reference(s)

Output Calibration Tool:

n/a Ref. 5.1, Comment 3

Accuracy Resolution / Readability Minor Division Upper Range Temperature Effect Output Calibration Standard:

n/a Ref. 5.1, Comment 3

Accuracy Resolution / Readability Minor Division Upper Range Temperature Effect Application Specific Input:

Value Sigma if not 2 Reference(s)

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0000-0038-8052 Susq-EPU-T506-MSLHiFIo-CaIc-2006, Rev. 0

3. Summary Results:

Calculated Values Setpoint Function Analytic Limit (from Section 1)

Allowable Value (AV)

Nominal Trip Setpoint (NTSP)

Meets LER Avoidance Criteria Meets Spuri-ous Trip Avoid-ance Criteria Main Steam Line 185.78 PSID 179 PSID*

173 PSID*

Yes Yes High Flow MSIV 140% flow Isolation Exclusive of head correction.

Application Specific Setpoint Adjustments Setpoint Function AL to AV AL to NTSP1 (PSlD)

(PSLID Minimum Required 6.637969

• 8.631651

• Margins (PSID) from AL (Ref. 1, Ref. 2)

Exclusive of head correction.

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0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Rev. 0

4. Comments and Recommendations:

1. Unless specifically identified as "bias" errors in this document, all instrument uncertainty errors will be considered to be random in nature, even when the "+/-" symbol is not shown.

2. Some plant specific information has not been provided in the current PPL setpoint calculation(s) or documents and is considered unnecessary because the impact of this information is included within the instrument accuracy values within the current PPL setpoint calculation(s).

3.

Incomplete inputs are available for the calibration errors for all Maintenance and Testing Equipment (M&TE) currently in use at Susquehanna Units 1 & 2. Therefore, the calibration errors are based on using errors that are 10% higher than the errors for assumed new calibration tools that have the same error in units of %FS as the tools currently in use with an instrument Calibration Span of 0-150 PSID. The current calibration tool error is 1.5 PSID, meaning that the error in units of %FS is 1 %FS. The assumed Differential Pressure Gauge calibration tool has an Upper Range Limit of 200 PSID. Moreover, the error of the calibration standard used to calibrate a calibration tool is conservatively assumed to be equal to the error of the calibration tool.

4. Temperature effect, humidity effect, power supply effect, Radio Frequency Interference /

Electromagnetic Interference (RFI/EMI) effect, and insulation resistance effect errors are marked "negligible" or "n/a" and are considered to have negligible or no impact on the manufacturer's accuracy terms when they are not identified separately.

5. Per Ref. 1 and Ref. 2, overpressure effects are only applicable to certain pressure measurement devices (e.g., differential pressure transmitters), and static pressure effects are only applicable to certain differential pressure measurement devices. These effects are marked "n/a" for Barton PDISs.

6. These Barton PDISs use a sealed bellow unit, which is temperature compensated to actuate a switch. Therefore, they are not subject to Over-pressure Effect (OPE), Static Pressure Effect (SPE), Accuracy Temperature Effect (ATE), and Drift Temperature Effect (DTE). The temperature limits are -40 degF to +180 degF (-40 degC to +80 degC). (Ref. 6.1)

7. Seismic Effect (SE) on the inaccuracy of Barton PDISs was calculated from test data (Ref. 6.2) for a Model 288A. The test instrument with an URL of 30 inH20 with an initial setpoint setting of 25.38 inH20 was subjected to seismic testing. The post test setpoint setting of 25.79 inH20 was used to calculate an accuracy in percent of Upper Range Limit (URL) as follows: [(25.38 -

25.79)/30]

• 100 = 1.366667% URL. This is rounded up to 1.37% URL for conservatism. This SE applies to trip conditions only. Because only one instrument was tested, the current approach in GE setpoint calculation methodology treats the SE for this instrument to be a 1 sigma value.

8. 'These Barton PDISs function very early in the event of a steam line break and have no function after the Main Steam Isolation Valves close. Prior to the event, the DPISs are in the normal operating environment radiation field, 0.1 Rad/hour. (Ref. Ref. 5.1)

Moreover, accumulated radiation exposure during the calibration interval would not be significant.

Therefore, the Radiation Effect (RE) is considered to be negligible.

9. The PEA random accuracy error is equal to +/- 4.2 PSID, where the AL conservatively represents the maximum reading point. (Ref. 8.2) The PEA is assumed to be independent of time because it is assumed that the flow primary elements do not degrade with time (Ref. 1).

Therefore, the drift component of the PEA is considered to be negligible.

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0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Rev. 0

4. Comments and Recommendations (cont'd):

10. The Analytical Limit has been conservatively determined without accounting for line losses from the Reactor Pressure Vessel steam dome to the venturi. This conservatism more than compensates for the PMA error due to steam dome pressure changes from the nominal 1050 psia. Therefore, the PMA, which is a bias error (Ref. 2), can be taken to be 0 PSID.

11. Transfer functions used in this calculation:

Pressure Differential Switch None Page 11 of 12

0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Rev. 0

5.

References:

1.

NEDC-32889P, Rev. 3, Class 3, General Electric Methodology for Instrumentation Technical Specification and Setpoint Analysis, November 2002

2.

NEDC-31336P-A, Class 3, General Electric Instrument Setpoint Methodology, September 1996

3.

Current applicable Susquehanna setpoint calculations/procedures:

3.1.

PPL Calculation EC-083-0639, Rev. 2, "Main Steamline High Flow Interlock Setpoint/

FIS-B21 -1 N006A/B/C/D" 3.2.

PPL Calculation EC-083-0642, Rev. 1, "Main Steam Line Flow Interlock -- FIS-B21 -

2N007" 3.3.

PPL Corporation Calculation EC-083-0640 Rev. 2 "Main Steamline High Flow Interlock Setpoint / FIS-B21-1 NOO7AIBIC/D" 3.4.

PPL Corporation Calculation EC-083-0642 Rev. 1 "Main Steam Line Flow Interlock -

FIS-B21-2N006" 3.5.

PPL Corporation Calculation EC-083-0643 Rev. 1 "Main Steam Line Flow Interlock -

FIS-B21-2N008" 3.6.

PPL Corporation Calculation EC-083-0644 Rev. 1 "Main Steam Line Flow Interlock -

FIS-B21-2N009" 3.7.

PPL Corporation Calculation EC-083-0652 Rev. 2 "Main Steamline High Flow Interlock Setpoint / FIS-B21-1 NOO8A/B/C/D" 3.8.

PPL Corporation Calculation EC-083-0653 Rev. 2 "Main Steamline High Flow Interlock Setpoint / FIS-B21-1 N009A1B/C/D"

4.

Susquehanna Technical Specifications and Bases, as revised through Amendment 219 for Unit 1 and Amendment 190 for Unit 2.

5.

Current applicable Susquehanna documents:

5.1.

PPI Susquehanna LLC, Extended Power Uprate / MELLLA+ Completed Design Input Request (Ref. 5.1) T0506 - NSSS TS Instrument Setpoints", letter EPUL-0408, January 12, 2006 (Rev. 2) from Michael S. Gorski (PPL) to Larry W. King (GE)

6.

Vendor Specifications:

6.1.

ITT Barton Installation and Operation Manual, Model 288A/290A/B, Differential Pressure Indication Switches, Manual No. 96G1 288A/289A, Copyright 1996 6.2.

ITT Barton Report R3-288A-1, Test Report IEEE 344-1975 Seismic And Radiation Qualification, ITT Barton M288A, ITT Barton M289A

7. Susquehanna Extended Power Uprate tasks:

7.1.

Task T0300 Page 12 of 12 0

0000-0038-8052 Susq-EPU-T506-MSLHiFlo-Calc-2006, Rev. 0

5. References (cont'd):

8.

GE Letters / Reports:

8.1.

GE report, "calculate the Analytical Limit (AL) at 140% rated flow, Allowable Value (AV), Nominat Trip Setpoint (NTSP) for EPU for Susquehanna Main Steam Flow Element Flow rate vs. pressure drop and unrecoverable pressure drop evaluation",

DRF 0000-0038-8052, Harish Parekh, October 13, 2005 8.2.

GE Report 0000-0049-6630-01, "MSL Hi Flow Setpoint PMA and PEA Results", DRF 0000-0038-8052, Y. Dayal, January 19, 2006 Page 13 of 12