Letter Sequence Other |
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TAC:ME2531, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
Administration
- Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance
- Meeting, Meeting
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MONTHYEARGNRO-2009/00022, 2009-03 - NRC Written Examination Grade Report in Accordance with NUREG 1021, Revision 92009-03-0909 March 2009
2009-03 - NRC Written Examination Grade Report in Accordance with NUREG 1021, Revision 9
Project stage: Request
ML0931404632009-11-0303 November 2009
License Amendment Request Regarding Power Range Neutron Monitoring System Upgrade
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Acceptance Review of License Amendment Request for Power Range Neutron Monitoring System - Includes Revised Schedule for Completion Based on Late Submittal
Project stage: Acceptance Review
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Request for Withholding Information from Public Disclosure - 10/1/2009 Affidavit Executed by E. Schrull, GE-Hitachi Nuclear Energy Americas LLC
Project stage: Withholding Request Acceptance
ML1000703852010-01-15015 January 2010
Request for Additional Information, License Amendment Request for Power Range Neutron Monitoring System
Project stage: RAI
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Responses to NRC Requests for Additional Information Pertaining to License Amendment Request for Power Range Neutron Monitoring System
Project stage: Response to RAI
ML1010902452010-04-22022 April 2010
Request for Additional Information Power Range Neutron Monitoring System
Project stage: RAI
ML1011901252010-05-0404 May 2010
Request for Additional Information, Round 3, License Amendment Request for Power Range Neutron Monitoring System
Project stage: RAI
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Entergy Operations, Inc. - E-mail Attaching EOI and GE-Hitachi Nuclear Energy Presentation Slides and Affidavit Related to Meeting on May 25, 2010 Regarding Grand Gulf Nuclear Station, Unit 1
Project stage: Meeting
ML1013805152010-05-17017 May 2010
GE-Hitachi Nuclear Energy Americas LLC Affidavit of Edward Schrull Request to Withhold from Public Disclosure, Enclosure 1 to GEH Letter GG-PRNM-168777-EC065, Grand Gulf Prnm Upgrade Project - Presentation for May 25, 2010, NRC Meeting
Project stage: Meeting
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Responses to NRC Requests for Additional Information Pertaining to License Amendment Request for Power Range Neutron Monitoring System
Project stage: Response to RAI
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Request for Withholding Information from Public Disclosure
Project stage: Withholding Request Acceptance
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Entergy Operations, Inc. and GE-Hitachi Nuclear Energy Slide Presentation for May 25, 2010 - NRC RAIs Regarding GGNS Prnm System LAR (Non-Proprietary)
Project stage: Other
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Licensee Slides from 5/25/10 Meeting to Discuss Response to Requests for Additional Information on License Amendment Request for Digital Power Range Neutron Monitoring System (Nonproprietary Version)
Project stage: Response to RAI
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Affidavit for 5/25/10 NRC Meeting to Discuss Response to Requests for Additional Information on License Amendment Request for Digital Power Range Neutron Monitoring System
Project stage: Response to RAI
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Responses to NRC Requests for Additional Information Pertaining to License Amendment Request for Power Range Neutron Monitoring System
Project stage: Response to RAI
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5/25/2010 Summary of Meeting with Entergy Operations, Inc., to Discuss the Licensees Response to NRC Staffs Request for Additional Information Dated 5/4/2010 Installation of a Digital Power Range Neutron Monitoring System
Project stage: RAI
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Schedule for Responding to NRC Requests for Additional Information Pertaining to License Amendment Request for Power Range Neutron Monitoring System
Project stage: Request
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0000-0102-0888-RI, Plant-Specific Responses Required by Numac Prnm Retrofit Plus Option III Stability Trip Function Topical Report, (NEDC-3241OP-A)
Project stage: Other
ML1016703442010-07-0202 July 2010
Request for Withholding Information from Public Disclosure - GE-Hitachi Nuclear Energy Americas LLC Affidavit Dated 6/2/2010
Project stage: Withholding Request Acceptance
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Project stage: Response to RAI
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Project stage: Withholding Request Acceptance
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Project stage: Response to RAI
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Request for Withholding Information from Public Disclosure, 9/28/2010 Affidavit Executed by J. Harrison, GE-Hitachi Nuclear Energy Americas LLC
Project stage: Withholding Request Acceptance
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: RAI
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Project stage: RAI
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Withholding Request Acceptance
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Project stage: Withholding Request Acceptance
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Response to RAI
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Project stage: Supplement
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Project stage: Supplement
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Project stage: Supplement
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Project stage: Withholding Request Acceptance
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Project stage: Withholding Request Acceptance
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Request for Withholding Information from Public Disclosure, 11/3/2011 Affidavit Executed by E. Schrull, GE-Hitachi Nuclear Energy Americas LLC, Attachment 1 to GNRO-2011/00091
Project stage: Withholding Request Acceptance
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Project stage: Withholding Request Acceptance
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Request for Withholding Information from Public Disclosure, 9/22/2011 Affidavit Executed by J. Harrison, GE-Hitachi Nuclear Energy Americas LLC, Attachment 1 to GNRO-2011/00066
Project stage: Withholding Request Acceptance
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Project stage: Withholding Request Acceptance
2010-07-29
[Table View] |
Text
1 NRC RAIs Regarding GGNS PRNM System LAR Entergy Operations, Inc.
GE Hitachi Nuclear Energy May 25, 2010
2 Purpose of the Meeting Discuss RAIs Ensure RAIs are understood Discuss approach to responses
3 PRNM System Overview A digital upgrade to the current APRM subsystem of the Neutron Monitoring System (NMS)
Results in greater instrument accuracy, redundancy, improved response times, and scram avoidance.
No setpoint drift System design and associated TS changes documented in PRNM LTR (NEDC-32410P-A); approved by NRC
4 PRNM System Overview (contd)
Supports plant operation at higher power levels Supports a different core stability solution needed for extended power uprate conditions Changing from Option E-I-A to Option III
5 Current APRM Configuration (e) HITACHI LPRM Inputs APRMC APRMG LPRM Inputs DIV III RPSA ~~~---------
LPRM Inputs APRMA APRME LPRM Inputs DIVI
.. RPS B LPRM Inputs APRMB APRM F LPRM Inputs DIV II LPRM Inputs APRMD APRMH LPRM Inputs DIVIV
-~ Entergy.
THE POW" R O f PE OP lf 'M
6 PRNM Configuration
((
{3}))
(e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
7 PRNM System - GGNS Block Diagram
((
{3}))
GEH PROPRIETARY INFORMATION (e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
8 2-Out-Of-4 Voter Logic
{3}))
((
GEH PROPRIETARY INFORMATION (e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
9 NMS-to-PRNM Comparison Current NM System LPRM Subsystem 44 LPRM strings, 176 LPRM signals APRM Subsystem 8 APRM channels 22 LPRM input signals to each APRM channel 8 outputs to RPS PRNM System
((
{3}))
GEH PROPRIETARY INFORMATION
10 NMS-to-PRNM Comparison (contd)
Current NM System Flow Subsystem 4 channels, 8 transmitters Option E-I-A Subsystem Period-Based Detection System (PBDS)
PRNM System GEH PROPRIETARY INFORMATION
{3}))
((
11 RAI Nos. 1 & 6 Changes to GGNS PRNM System platform from PRNM LTR BWR/6 design platform described in the PRNM LTR Describe PRNM System platform Identify differences between platform described in the PRNM LTR and GGNS-specific platform and reconcile
12 BWR/6 PRNM Panel Layouts
((
{3}))
(e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
13 RAI No. 2 Confirm plant requirements are met Review UFSAR to identify requirements for current APRM subsystem Compare to codes and standards specified in the PRNM LTR Revise Attachment 2 to reflect information (similar to MNGP approach)
14 RAI No. 3 Address software common-cause failure
PRNM software currently licensed for use via PRNM LTR
GGNS application same as other plants with PRNM System
Over 90 reactor-years of safe operation
Software functions thoroughly tested during the Factory Acceptance Test prior to installation
15 Plants with PRNM System Domestic
Hatch 1, 2
Browns Ferry 1, 2, 3
Nine Mile Point 2
Fermi 2
Peach Bottom 2, 3
Limerick 1, 2
Brunswick 1, 2
Susquehanna 1, 2
Monticello Foreign
Laguna Verde 1, 2
KKM
Santa Maria de Garona
Chinshan 1
Forsmark 1, 2, 3
16 RAI No. 4 Define data communications Developed compliance matrix per ISG-04; to be provided in the response Architecture diagram depicts data communication
17 PRNM System Architecture Diagram
((
{3}))
(e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
18 RAI No. 5 Document equipment EQ activities and confirm
Document EQ conditions in Attachment 2 Compare GGNS parameters with PRNM LTR
Equipment qualification performed as part of the Engineering Change process Performed after fabrication and prior to installation (~ 4th quarter 2010)
Documented in a Qualification Summary Report
Propose a License Condition to provide the report to NRC prior to startup from the 2012 refueling outage
19 RAI No. 7 Human Factors - Maintain current interface feel PRNM data to be presented on flat screen monitors currently used by control room operators Human Factors Evaluation (HFE) to be performed following design completion
(~ 4th quarter 2010)
Propose a License Condition to provide the report to NRC prior to startup from the 2012 refueling outage
20 RAI No. 8 Failure Rate Data Updating Table F.2 of the PRNM LTR to specifically reflect BWR/6 design; to be included in the response
21 RAI No. 9 Administrative Controls Access to GGNS Control Room granted via keycard
((
{3}))
Considering physical barriers (e.g.,
locking bars covering module controls)
Will develop a procedure to address access controls
22 RAI No. 10 Setpoint Methodology Setpoint calculations based on GEH methodology approved by NRC Establishes:
((
{3}))
Representative calculation available for review GEH PROPRIETARY INFORMATION
23 Closing Remarks (e) HITACHI
-~ Entergy.
THE POW" R O f PE OP lf 'M
