BVY 04-039, Emergency Response Data System Data Point Library Update

Emergency Response Data System Data Point Library Update

ML041320405
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	04/30/2004
From:	Devincentis J Entergy Nuclear Operations, Entergy Nuclear Vermont Yankee
To:	Document Control Desk, Office of Nuclear Security and Incident Response
References
BVY 04-039
Download: ML041320405 (3)

Text

Entergy Nuclear Vermont Yankee, LLC

- Entergy Entergy Nuclear Operations, Inc.

185 Old Ferry Road Brattleboro, VT 05302-0500 April 30, 2004 BVY 04-039 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Vermont Yankee Nuclear Power Station License No. DPR-28 (Docket No. 50-271)

Emerpencv Resnonse Data Svstem Data Point Library Update Attached are two revised Emergency Response Data System Data Point Library (DPL) sheets. These updated sheets are required to reflect a recent design change (MM 2003-039) to our Feedwater System Instrumentation. The two feedwater flow signals have been re-calibrated with a larger total range. The previous range for both feedwater flow signals had been (0 to 4.0 Mlb/hr). The extended range is now (0 to 5.0 Mlb/hr). In addition, the reference calibration density for these two signals has changed from 372 degF to 391.5 degF.

Should you have any questions on this matter, please contact me at (802) 258-4236.

Sincerely, ames M. DeVincentis Manager, Licensing Attachment cc:

USNRC Region I Administrator USNRC Project Manager - VYNPS USNRC Resident Inspector - VYNPS John R. Jolicoeur - USNRC Vermont Department of Public Service

'A02*

Rev. 3 4/2004 Enclosure 3 - DATA POINT LIBRARY REFERENCE FILE DATE: 04/30/04 REACTOR: VY1 DATA FEEDER: ERFIS NRC ERDS PARAMETER: Main FD Flow POINT ID: B015 PLANT SPEC POINT DESC.: Reactor Feedwater Inlet Flow A GENERIC/COND DESC.: Feedwater Flow into the Reactor Svstem ANALOG/DIGITAL: A ENER UNITS/DIG STATES: MLB/HR ENGR UNITS CONVERSION: N/A

-MINIMUM INSTR RANGE: 0 MAXIMUM INSTR RANGE: 5 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES: N/A PROC OR SENS: S NUMBER OF SENSORS: 1 HOW PROCESSED: N/A SENSOR LOCATIONS: Turbine Building ALARM/TRIP SET POINTS: 3.4 Hi Alarm NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL: N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL: N/A INSTRUMENT FAILURE MODE: Variable TEMPERATURE COMPENSATION FOR DP TRANSMITTERS: Densitv compensation applied: ref. conditions 391.5 deaF & 1025 Dsia LEVEL REFERENCE LEG: Y UNIQUE SYSTEM DESC.: N/A Page 12 of 71

Rev. 3 4/2004 Enclosure 3- DATA POINT LIBRARY REFERENCE FILE DATE: 04/30/04 REACTOR: VY1 DATA FEEDER: ERFIS NRC ERDS PARAMETER: Main FD Flow POINT ID: B016 PLANT SPEC POINT DESC.: Reactor Feedwater Inlet Flow B GENERIC/COND DESC.: Feedwater Flow into the Reactor System ANALOG/DIGITAL: A ENER UNITS/DIG STATES: MLB/HR ENGR UNITS CONVERSION: N/A MINIMUM INSTR RANGE: 0 MAXIMUM INSTR RANGE: 5 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES: N/A PROC OR SENS: S NUMBER OF SENSORS: 1 HOW PROCESSED: N/A SENSOR LOCATIONS: Turbine Building ALARM/TRIP SET POINTS: 3.4 Hi Alarm NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL: N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL: N/A INSTRUMENT FAILURE MODE: Variable TEMPERATURE COMPENSATION FOR DP TRANSMITTERS: Densitv compensation applied; ref. conditions 391.5 deaF & 1025 psia LEVEL REFERENCE LEG: Y UNIQUE SYSTEM DESC.: N/A Page 13 of 71