ML041690099

Notification of Data Point Library Changes for the Emergency Response Data System

ML041690099
Person / Time
Site:	Oyster Creek
Issue date:	06/09/2004
From:	Swenson C GPU Nuclear Corp, Jersey Central Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
2130-04-20128, VM-PC-1150
Download: ML041690099 (4)

Text

10 CFR 50, Appendix E, Sec VI.3.a June 9, 2004 2130-04-20128 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 - 0001 Oyster Creek Generating Station Facility Operating License No. DPR-16 NRC Docket No. 50-219

Subject:

Notification of Data Point Library Changes for the Emergency Response Data System (ERDS)

Pursuant to 10 CFR 50, Appendix E, Sec VI.3.a., this letter is to notify you of changes to our Emergency Response Data System data point library made on May 14, 2004 and also a late notification of another change made in October 2002 that was not previously reported. Enclosed are copies of revised pages 9 & 20 of the Oyster Creek Data Point Library Reference File annotated by revision bars to indicate changes dated 05/15/2004.

The two data point revisions addressed in this change notification are as follows:

NRC ERDS Parameter Point ID Change Implemented NI Power Rng APRMPWR October 2002 CST Level LT35 May 14, 2004 The change to the Alarm/Trip set points for APRMPWR were made at Oyster Creek during implementation of Mini-MELLLA and installation of new APRM Flow Control Trip Reference Cards during 1R19. The requirement to notify the NRC of this change affecting ERDS was not recognized until the current change to the Condensate Storage

__-__Tank (CST) high and low alarm set points prompted a review of-previous changes; We are continuing to review the extent of this oversight and if additional unreported changes are discovered, they will also be reported.

If any further information or assistance is needed, please contact David Fawcett at 609-971-4284.

Sincerely, C. N. Swenson Vice President, Oyster Creek Generating Station

CNS/DIF

Enclosure:

cc: H. J. Miller, Administrator, USNRC Region I P. S. Tam, USNRC Project Manager, Oyster Creek R. J. Summers, USNRC Senior Resident Inspector, Oyster Creek K. Tosch, Chief NJDEP Bureau of Nuclear Engineering File No. 04012

VM-PC-1 150 APPENDIX 1-16 DATE: 05/15/2004 Page: 9 OF 44 DATE: 05/15/2004 REACTOR UNIT: OYI DATA FEEDER: N/A NRC ERDS PARAMETER: NI Power Rng POINT ID: APRMPWR PLANT SPEC POINT DESC.: Average APRM Power GENERIC/COND DESC.: Nuclear Instruments, Power Range ANALOG/DIGITAL: A ENGR UNITS/DIG STATES:  % Power ENGR UNITS CONVERSION: Calculated MINIMUM INSTR RANGE: 0 MAXIMUM INSTR RANGE: 150 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES: N/A PROC OR SENS: P NUMBER OF SENSORS: 8 HOW PROCESSED: - __ _ -- .Average of-8 APRM signals -

SENSOR LOCATIONS: Rx Core (2 per quadrant of reactor core)

ALARMTRIP SET POINTS: (0.98 X 10-6) W + 37.7 for recirculation flow

< 48% rated, (0.95 X 104) W + 60.0 for recirculation flow

> 48% rated,

= 117.95 for recirculation flow > 100%

UNIQUE SYSTEM DESC.:

• W = CORE FLOW IN LBM/HR

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:X;sts;;' i.44_

............... h' Zi1~........ -. 1.

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-*aAd: l,l;a saRS~t*; ........................... ;,:;

Ae..;;§.w  ;....,

I I - C VM-PC-1 150 APPENDIX 1-16 DATE: 05/15/2004

-Page: 20 OF 44 DATE: 05/15/2004 REACTOR UNIT: OYI DATA FEEDER: N/A NRC ERDS PARAMETER: CST Level POINT ID: LT35 PLANT SPEC POINT DESC.: Condensate Storage Tank Level GENERIC/COND DESC.: Condensate Storage Tank Level ANALOG/DIGITAL: A ENGR UNITS/DIG STATES: Feet ENGR UNITS CONVERSION: Linear MINIMUM INSTR RANGE: 0.5 I

MAXIMUM INSTR RANGE: 45 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES: N/A PROC OR SENS: S

_NUMBER-OF SENSORS---- -

HOW PROCESSED: N/A SENSOR LOCATIONS: 6 inches from the Base of condensate storage tank ALARM/TRIP SET POINTS: High 41.6 Feet Low 29.4 feet UNIQUE SYSTEM DESC.: Condensate storage tank capacity 525000 gal.

Approx = 12000 gal/foot

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