Text

Redacted Updated Safety Analysis Report (WCGS Usar), Revision 37, Calculation XX-E-013, Rev. 4-CN012, Post-Fire Safe Shutdown (PFSSD) Analysis
	ML24114A190
Person / Time
Site:	Wolf Creek
Issue date:	04/15/2024
From:	; Wolf Creek
To:	; Office of Nuclear Reactor Regulation
References
	000347
	Download: ML24114A190 (1)
	v • d • e

FORM APF-05D-001-02, REV. 13 Page 1 CALCULATION CHANGE NOTICE CCN NO. XX-E-013- 004-CN012

Base Calc No. Rev No. Sequence No.

CALCULATION TITLE - From CALCULATION TITLE field in EIS:

POST-FIRE SAFE SHUTDOWN (PFSSD) ANALYSIS

Administrative? YES NO ASSOCIATED ENGINEERING CHANGE #: 020720

REGULATORY Attached 50.59 Evaluation #

REVIEWS: Evaluated with CP#:

Met per DECP 020720 Not Applicable N/A Only if Administrative USAR CHANGE REQUIRED? YES NO Tracking #, as applicable:

DOCUMENTS IMPACTED? YES NO Tracking #, as applicable:

CCN Status: COMMITTED FINAL VOID SUPERSEDED

DigsigOrg 2.8, 0.7 ORIG Richard Rojas 12/5/2023 ORIG Printed Name Date Printed Name Date

Signature ES9280479 QUALIFICATION REQUIRED: ES9280479

Signature QUALIFICATION REQUIRED:

DigsigVer 2.8, 0.7 VERF Kristine Sheridan-Harris 01/23/2024 VERF Printed Name Date Printed Name Date

Signature ES9280479 QUALIFICATION REQUIRED: ES9280479

Signature QUALIFICATION REQUIRED:

DigsigApp 2.8, 0.7 APP 'DYLG6XOOLYDQ APP Printed Name Date Printed Name Date

Signature Signature DigsigCert 3.5 1.75 DigsigCert 3.5 1.75Digitally signed by David F.

Sullivan DN: c=US, st=Missouri, l=Kansas City, o=Evergy, Inc., cn=David F. Sullivan Date: 2024.01.23 11:55:47

-06'00'

RPE Certification (For ASME Section III Stress/Design Reports, refer to AP 05D-001 for qualification requirements)

Internal Use Only FORM APF-05D-001-02, REV. 13 Page 2 CALCULATION CHANGE NOTICE CCN NO. XX-E-013- 004-CN012

Base Calc No. Rev No. Sequence No.

CALCULATION SUBJECT (Statement Of Problem) - Enter this in SUBJECT field in EIS:

DECP 020720 is relocating the SA075A MSFIS Panel from NK05119 to NK05103. This CCN is to update the coordination that is outlined in Appendix 3 of XX-E-013 to accurately reflect the current system configuration.

Internal Use Only FORM APF-05D-001-02, REV. 13 Page 3 CALCULATION DATABASE INPUT CCN NO. XX-E-013- 004-CN012

Base Calc No. Rev No. Sequence No.

Link new systems to the calculation/CCN in EIS.

Systems Affected: NK, SA Link computer code(s) used to develop the calculation/CCN in EIS.

Computer Code: None Develop relationships between interdependent calculations in EIS.

Additional None Calculations Providing Input to this calculation:

Additional None Calculations Impacted by this calculation:

Develop relationships between the controlled documents and the calculation/CCN in EIS.

Additional None Controlled Documents Inputs to this calculation:

Additional None Controlled Documents Impacted by this calculation:

The reference documents listed below are those that cannot be linked to the calculation/CCN and shall be entered in the INDUSTRY REFERENCE field in EIS, e.g., ASME Codes, ANSI Standards, letters, etc.

Additional DECP 020720 Other Reference Documents:

Link new components to the calculation/CCN in EIS.

Additional None Components:

REFER TO DESKTOP GUIDE FOR PROCESSING CALCULATIONS IN EIS

Internal Use Only FORM APF-05D-001-02, REV. 13 Page 4 LIST OF EFFECTIVE PAGES CCN NO. XX-E-013- 004-CN012 Base Calc No. Rev No. Sequence No.

Page CCN Calc. CCN Calc. CCN Calc. CCN Calc.

No. Page Page Page Page Page Page Page Affected No. Affected No. Affected No. Affected CVR/SCRN/ /CVR/SCRN /CVR/SCRN /CVR/SCRN Other /Other /Other /Other

All Appendix 3

AD = Applicability Determination CVR = Calculation Verification Report (if applicable)

SCRN = Regulatory Screening (if applicable)

Internal Use Only FORM APF-05D-001-02, REV. 13 Page 5 CALCULATION SHEET CCN NO. XX-E-013- 004-CN012

Base Calc. No. Rev. No. Sequence No

1.

Purpose:

DECP 020720 is relocating the SA075A MSFIS Panel from NK05119 to NK05103. This CCN is to update the coordination that is outlined in Appendix 3 of XX-E-013 to accurately reflect the current system configuration.

2. Results, Conclusion, Margins, and Recommendations:

a. Results and Conclusions

The changes proposed by this CCN is to update the coordination that is outlined in Appendix 3 of XX-E-013 to accurately reflect the current system configuration. These changes do not change the results of the base calculation.

b. Margins

The changes proposed under this CCN do not adversely impact the results of the base calculation.

These changes are acceptable.

c. Recommendations

There are no recommendations as a result of this CCN because this CCN does no adversely impact the results of the base calculation.

3. Impact on Outstanding CCNs:

x XX-E-013-004-CN001 - [VOID] - There is no impact on this calculation.

x XX-E-013-004-CN002 - [FINAL] - DCP 014209 removes the HMCP breakers from MCC cubicles NG03DBF6 and NG04DBF6, which were added as PFSSD components in CCN XX-E-013-002-CN014 per DCP 13800.

These breaker cubicles provide power and control function s for Train A and B emergency diesel generator room supply fan motors DCGM01A and DCGM01B, respectively. Due to breaker coordination issues, DCP 014209 will modify the power supply to supply 480 VAC power to the diesel generator room supply fan motors DCGM01A and DCGM01B directly from new load center breakers NG0308 and NG0408, respectively. Breakers NG0308 and NG0408 will supply power to the fan control functions within NG03DBF6 and NG04DBF6, respectively.

Therefore, MCC cubicles NG03DBF6 and NG04DBF6 will remain as PFSSD components. The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN003 - [COMMITTED] - Change Package 014658 is replacing cable from EDGs speed signal generators to the EDGs speed switches. Appendices 1, 2 and 3 are updated to reflect these changes. The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN004 - [FINAL] - CP 015070 is changing the 120VAC source from system NG to NN for the control room a/c unit inlet and exhaust dampers GKHZ 0029A/B (Train A) & GKHZ0040A/B (Train B). The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN005 - [SUPERSEDED] - There is no impact on this calculation.

x XX-E-013-004-CN006 - [FINAL] - CP 012513 is replacin g XNB02, and the change impacts the PFSSD components for XNB02. The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN007 - [FINAL] - DCP 020021 is replacing XNB 01, and the new transformer will have a Load Tap Changer (LTC) to control the voltage supplied to 4.16kV bus NB01 even if the 13.8 kV input voltage level changes. The DCP is also replacing/deleting relays in the MA104F panel, and the relays are addressed by XX-E-013. The changes per this update do not impact the evaluation performed by this calculation.

Internal Use Only FORM APF-05D-001-02, REV. 13 Page 6 CALCULATION SHEET CCN NO. XX-E-013- 004-CN012

Base Calc. No. Rev. No. Sequence No x XX-E-013-004-CN008 - [FINAL] - CP 013324 replaces the analog-based Westinghouse 7300 Nuclear Steam Supply System (NSSS) with a digital Emerson Ovation Distributed Control System (DCS). The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN009 - [COMMITTED] - This change incorp orates changes per CP 020292 (Substation Transformers NO. 8, 9, 10 & 11 and Breakers Replacement R25) that removes breakers switchyard breakers 13-8 and 13-48 and replaces them with new switchyard breakers 13-49 and 13-50, respectively. The changes per this update do not impact the evaluation performed by this calculation.

x XX-E-013-004-CN010 - [FINAL] - This change relocates the power supply to SA075B panel from NK05423 to NK05403. The changes per this update do not impact the evaluation performed by this calculation change notice.

x XX-E-013-004-CN011 - [COMMITTED] - CP 015000 replaces th e startup transformer XMR01 and replacing several components from Phase Differential Relay, along with the Neutral Ground Relay, while eliminating the Deluge Relay AR7, and the fault pressure relay 463X-2/T2. The changes per this update do not impact the evaluation performed by this calculation.

4. Assumptions and Input:

None

5. Methodology and Computations:

None

6. Affected Pages:

Appendix 3 pages 3, 4, 14, 100, 122 need to be revised per attached markup.

7.