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Digital Modernization Project LAR Pre-submittal Meeting - March 16, 2021 (EPID L-2020-LRM-0041) (Slides)
	ML21063A119
Person / Time
Site:	Limerick
Issue date:	03/04/2021
From:	; Exelon Generation Co, Exelon Nuclear
To:	Marshall M; NRC/NRR/DORL/LPL1
	Marshall, M., NRR/DORL/LPLI
References
	EPID L-2020-LRM-0041
	Download: ML21063A119 (56)
	v • d • e

Westinghouse Non-Proprietary Class 3 @ 2021 Westinghouse Electric Company LLC. All Rights Reserved Limerick Generating Station Digital Modernization Project LAR Pre-submittal Meeting NRC Pre-submittal Meeting March 16, 2021 WMP-1197~NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Introductions

Expected outcome for meeting

Project overview

LAR overview

Vendor Oversight Plan (VOP)

Closed Session

Architecture and Fundamental Design Principles

Applicability of Regulatory Precedent

Defense-in-Depth and Diversity (D3) Approach

NRC & Exelon Closing Remarks 1 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

Licensing

Shannon Rafferty-Czincila, Licensing Director

Dave Helker, Licensing Manager

Frank Mascitelli, Licensing Lead

Laura Lynch, LGS Regulatory Assurance Manager

George Budock, LGS Regulatory Assurance

Pareez Golub, Digital Licensing SME

Engineering

John Connelly, Central Design Organization (CDO) Manager

Mark Samselski, CDO - Lead Responsible Engineer

George Bonanni, CDO - Senior Staff Engineer

Mike Foote, CDO - Senior Staff Engineer

Scott Schumacher, Systems Engineering 2 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

Project Management

Steve Hesse, Project Director

Dave Molteni, Senior Manager and Station Lead

Jerry Segner, Principal Project Manager

Kayla Marriner, Project Manager

Operations

Paul Krueger, Operations

Craig Myers, Operations Support

Nuclear Oversight

Dave Peiffer, Performance and Assessment Lead 3 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

Project Management

Chris Crefeld, Project Director

Stefan Levine, Senior Manager

Bill Bennett, Project Manager

Tom Pietryka, Project Manager

Engineering

Terry Tuite, Lead - Engineering

Warren Odess-Gillett, Lead - Licensing

Steve Merkiel, System Design Engineer

Cal Tang, BWR Technical Advisor 4 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

Westinghouse Non-Proprietary Class 3 © 2021 Westinghouse Electric Company LLC. All Rights Reserved Expected Outcome of Meeting Provide the NRC a more detailed view of the Limerick Modernization Project and gain staff feedback on core concepts that underlie the project:

Project scope/schedule/milestones

LAR contents and proposed use of ARP

Approach to addressing defense-in-depth and diversity

Architecture and approach to fundamental design principles

Applicability of previous generic licensing approvals

Migration of Redundant Reactivity Control System (ATWS) to a DCS Platform 5 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

Upgrade analog, Safety-Related, protection systems to Westinghouse Common QTM digital platform integrated into PPS:

Reactor Protection System (RPS)

Nuclear Steam Supply Shutoff System (NSSSS)

Emergency Core Cooling System (ECCS)

Upgrade analog Redundant Reactivity Control System (RRCS) to OvationTM DCS platform and reclassify to non-safety in accordance with the ATWS Rule (10 CFR 50.62)

Install Data Display System (DDS) to display sources of information in an environment that improves the ability to synthesize plant data 7 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

' Exelon.

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

I * * -' W 11 WMP-1197~NP ,,=, Exelon.

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Required information per ISG-06 Enclosure B Alternate Review Process

Licensing Technical Report (LTR)

Technical Specification changes

System Requirements Specification (SyRS)

System Design Specification (SyDS)

FMEA to support TS SR eliminations

Equipment Qualification Summary Report (EQSR)

Human Factors Summary

VOP Summary

Regulatory commitments

Conceptual FSAR Mark-ups (Info Only) 14 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Will address:

DI&C-ISG-06 Sections D.1 - D.8

TS surveillance elimination

Common Cause Failure analysis summary

Plant Specific Action Items (PSAI)

Common Q platform changes subsequent to generic NRC approval

Similar structure to Waterford LTR 16 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Leverages existing Exelon Quality Assurance, Engineering, and Project Management processes for oversight of Westinghouse Common Q development

Ensures high quality vendor products through QA program implementing procedures

Includes NRC acceptance criteria provided to industry, adapted for project use (ML19087A230)

Performs vendor audits as part of oversight activities

Ensures vendor is complying with NRC approved Common Q Software Program Manual (WCAP-16096-P-A, Rev. 5)

Validate PSAIs have been properly addressed 18 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Bistable Processing Logic (BPL) - Level 1 a,c 25 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Local Coincidence Logic (LCL) - Level 2 a,c 26 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Integrated Logic Processor (ILP) - Level 3 a,c 27 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

RT Matrix/RPS TU Scram a,c 28 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Interface and Test Processor (ITP) a,c 29 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Flat Panel Display System - Safety Displays a,c 30 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Flat Panel Display System - MTP a,c 31 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Defense-in-depth and Diversity (D3)

D3 coping analysis - SECY 93-087 Position 1 - 3 a,c 39 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Westinghouse Non-Proprietary Class 3 © 2021 Westinghouse Electric Company LLC. All Rights Reserved Fundamental Design Principles (cont.) - split content over two slides Defense-in-depth and Diversity (D3)

D3 coping analysis - SECY 93-087 Position 1 - 3 (cont.)

a,c SECY 93-087 Position 4 Displays and Controls a,c 40 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Westinghouse Non-Proprietary Class 3 © 2021 Westinghouse Electric Company LLC. All Rights Reserved Fundamental Design Principles (cont.) - split content over two slides Defense-in-depth and Diversity (D3)

D3 coping analysis - SECY 93-087 Position 1 - 3 (cont.) a,c 41 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

SRM-SECY 93-087 Position 4 Displays and Controls a,c 42 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

The CIM was reviewed as part of the AP1000 PMS

The CIM technical report, WCAP 17179, Revision 2 was docketed July 2010 (ML102170259)

It is a Tier 2* document incorporated by reference (IBR) in the Vogtle 3&4 UFSAR

WCAP-17179 is currently at Revision 6, April 2016

August 2016, SNC Vogtle 3&4 submitted a LAR 16-021 (ML16293A033) capturing all the changes since WCAP-17179, Revision 2 into an Appendix 7A in the UFSAR 46 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

The CIM went through the 10 CFR 52 NRC ITAAC inspection process

ITAAC 2.5.02.14 covers the complete CIM development life cycle.

The following ADAMS Accession Numbers are the NRC ITAAC inspection reports:

ML111890000

ML111890005

ML14058A995

ML14262A351

ML15363A360 47 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Westinghouse Non-Proprietary Class 3 © 2021 Westinghouse Electric Company LLC. All Rights Reserved Applicability of Other Previous NRC Approvals The LAR will reference the following approved topical reports:

Platform topical report, WCAP-16097-P-A, Common Qualified Platform a,c 49 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Application development topical report, WCAP-16096-P-A, Software Program Manual a,c 50 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Surveillance reduction topical report, WCAP-18461-P-A, Common Q Platform and Component Interface Module Elimination of Technical Specification Surveillance Requirements a,c 51 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

The LAR will request downgrading the existing safety-related Redundant Reactivity Control System (RRCS) to non-safety and enhanced reliability, since its purpose is to meet the ATWS Rule (10 CFR 50.62)

It will be replaced with a separate and diverse non-safety Westinghouse Ovation product

Use redundant Ovation controllers as a dedicated drop from DCS a,c

Sensors (RPV water level, RPV pressure, Reactor power status) to be hardwired from PPS prior to connecting into PPS analog input modules (i.e., signal share w/ isolation) 53 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

Westinghouse Non-Proprietary Class 3 © 2021 Westinghouse Electric Company LLC. All Rights Reserved Acronyms ADS Automatic Depressurization System LCL Local Coincidence Logic AER Auxiliary Equipment Room LGS Limerick Generating Station ARP Alternate Review Process LRA Licensee Required Action ASAI Application Specific Action Item LTR Licensing Technical Report ATWS Anticipated Transient Without Scram MCR Main Control Room BPL Bistable Protection Logic MPB Manual Partial Bypass BWR Boiling Water Reactor MPT Manual Partial Trip CCF Common Cause Failure MSFIS Main Steam and Feedwater Isolation System CDO Central Design Organization NSSSS Nuclear Steam Supply Shutoff System CIM Component Interface Module PC Personal Computer CPU Central Processing Unit PMS Protection and Monitoring System CS Core Spray PSAI Plant Specific Action Items D3 Defense-in-Depth and Diversity QMP Quality Management Plan DCS Distributed Control System RCIC Reactor Core Isolation Cooling DDS Data Display System RHR Residual Heat Removal ECCS Emergency Core Cooling System RPS Reactor Protection System EDG Emergency Diesel Generator RPV Reactor Pressure Vessel EOP Emergency Operating Procedures RRCS Redundant Reactivity Control System EQSR Equipment Qualification Summary Report SDV Scram discharge volume FMEA Failure Modes and Effects Analysis SPDS Safety Parameter Display System FMEDA Failure Modes, Diagnostics, and Effects Analysis SPM Software Program Manual FPGA Field Programmable Gate Array SRNC Safety Remote Node Controller FSAR Final Safety Analysis Report SyDS System Design Specification HPCI High Pressure Core Injection SyRS System Requirements Specification HSL High Speed Link TS Technical Specifications IBR Incorporated by Reference TU Trip Unit ILP Integrated Logic Processor UFSAR Updated Final Safety Analysis Report ITAAC Inspection, Test, Analysis, and Acceptance Criteria VOP Vendor Oversight Plan LAR License Amendment Request 55 WAAP-11979-NP

- - This record was final approved on 3/2/2021 1:59:11 PM. (This statement was added by the PRIME system upon its validation)

v t e Letter Sequence Meeting
EPID:L-2020-LRM-0041, TSTF-564 (Open)
Initiation Request, Request Acceptance... Administration Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting Questions Answers Results Approval... Other: ML20175A240, ML21123A136, ML22089A116, ML22089A117, ML22124A286
MONTHYEAR2021-06-23 [Table View]

ML21063A119

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