Similar Documents at Perry |
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Category:Letter
MONTHYEARIR 05000440/20230042024-01-30030 January 2024 Integrated Inspection Report 05000440/2023004 L-23-207, License Amendment Request (LAR) for Adoption of TSTF-264-A Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs2024-01-24024 January 2024 License Amendment Request (LAR) for Adoption of TSTF-264-A Revision 0, 3.3.9 and 3.3.10 - Delete Flux Monitors Specific Overlap Requirement SRs L-24-017, 30-Day Voluntary Report in Accordance with Industry Groundwater Protection Initiative2024-01-24024 January 2024 30-Day Voluntary Report in Accordance with Industry Groundwater Protection Initiative IR 05000440/20234022024-01-10010 January 2024 Cyber Security Inspection Report 05000440/2023402 ML24003A8032024-01-0303 January 2024 Notification of NRC Fire Protection Team Inspection Request for Information ML23321A0472023-12-20020 December 2023 Letter to Rod L. Penfield - Perry Nuclear Power Plant, Unit 1 - License Renewal Regulatory Audit Regarding the Environmental Review of the License Renewal Application L-23-171, CFR 50.55a Request Number VR-9. Revision 0, Feedwater Check Valve Exercising Test Frequency2023-12-0808 December 2023 CFR 50.55a Request Number VR-9. Revision 0, Feedwater Check Valve Exercising Test Frequency L-23-244, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-0606 December 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation IR 05000440/20230112023-11-28028 November 2023 Biennial Problem Identification and Resolution Inspection Report 05000440/2023011 IR 05000440/20234032023-11-27027 November 2023 Security Baseline Inspection Report 05000440/2023403 ML23292A2972023-11-17017 November 2023 Table of Contents LAR (L-2023-LLA-0111) L-23-238, Mid-Cycle Revision to the Core Operating Limits Report for Operating Cycle 202023-11-10010 November 2023 Mid-Cycle Revision to the Core Operating Limits Report for Operating Cycle 20 L-23-052, Submittal of the Updated Safety Analysis Report, Revision 232023-10-27027 October 2023 Submittal of the Updated Safety Analysis Report, Revision 23 ML23292A2482023-10-19019 October 2023 Fws to NRC, Federal Agency Coordination Under ESA Section 7 for Perry Nuclear Plant, Unit 1, License Renewal, and Concurrence with Not Likely to Adversely Affect Determination for Northern Long-eared Bat ML23292A2472023-10-19019 October 2023 Fws to NRC, Perry Nuclear Plant, Unit 1, License Renewal List of Threatened and Endangered Species That May Occur in Your Proposed Project Location or May Be Affected IR 05000440/20230032023-10-11011 October 2023 Integrated Inspection Report 05000440/2023003 ML23249A1032023-10-0303 October 2023 Letter to Rod L. Penfield, Site Vice President-Perry Nuclear Power Plant, Unit 1-Notice of Intent to Conduct Scoping Process and Prepare an Environmental Impact Statement ML23237B4222023-09-28028 September 2023 Energy Harbor Nuclear Corp. - Vistra Operations Company LLC - Letter Regarding Order Approving Transfer of Licenses and Draft Conforming License Amendments ML23269A1242023-09-27027 September 2023 Request for Withholding Information from Public Disclosure ML23261C3642023-09-25025 September 2023 License Renewal Application Online Reference Portal ML23261B0192023-09-25025 September 2023 Aging Management Audit Plan Regarding the License Renewal Application Review ML23256A3592023-09-22022 September 2023 Determination of Acceptability and Sufficiency for Docketing, Proposed Review Schedule, and Opportunity for a Hearing Regarding the Energy Harbor Nuclear Corp. Application for License Renewal L-23-205, Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-09-12012 September 2023 Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments L-23-206, Ohio National Pollutant Discharge Elimination System (NPDES) Permit 3IB00016 MD2023-09-12012 September 2023 Ohio National Pollutant Discharge Elimination System (NPDES) Permit 3IB00016 MD L-23-172, Quality Assurance Program Manual2023-08-31031 August 2023 Quality Assurance Program Manual IR 05000440/20234012023-08-28028 August 2023 Public - Perry Nuclear Power Plant Security Baseline Inspection Report 05000440/2023401 ML23129A1722023-08-25025 August 2023 Request for Withholding Information from Public Disclosure for Beaver Valley Power Station, Units 1 and 2; Davis Besse Nuclear Power Station, Unit 1; and Perry Nuclear Power Plant, Unit 1 IR 05000440/20230052023-08-24024 August 2023 Updated Inspection Plan for Perry Nuclear Power Plant (Report 05000440/2023005) ML23172A2852023-08-23023 August 2023 Safety Evaluation Irradiated Fuel Management Plan and Preliminary Decommissioning Cost Estimate ML23227A2202023-08-15015 August 2023 Information Request to Support Upcoming Problem Identification and Resolution Inspection at Perry Nuclear Power Plant L-23-188, Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments2023-08-0707 August 2023 Energy Harbor Nuclear Corp., Supplement to Application for Order Consenting to Transfer of Licenses and Conforming License Amendments L-23-001, License Amendment Request to Remove the Table of Contents from the Technical Specifications2023-08-0707 August 2023 License Amendment Request to Remove the Table of Contents from the Technical Specifications IR 05000440/20230022023-08-0202 August 2023 Integrated Inspection Report 05000440/2023002 L-23-174, 30-Day Voluntary Report in Accordance with Industry Groundwater Protection Initiative2023-07-19019 July 2023 30-Day Voluntary Report in Accordance with Industry Groundwater Protection Initiative ML23198A2842023-07-17017 July 2023 Information Request for the Cyber-Security Baseline Inspection, Notification to Perform Inspection L-23-146, License Renewal Application for the Perry Nuclear Power Plant2023-07-0303 July 2023 License Renewal Application for the Perry Nuclear Power Plant IR 05000440/20230102023-06-29029 June 2023 Comprehensive Engineering Team Inspection Report 05000440/2023010 ML23178A2422023-06-28028 June 2023 Reassignment of the U.S. Nuclear Regulatory Commission Branch Chief in the Division of Operating Reactor Licensing for Plant Licensing Branch III L-23-050, 2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models2023-06-22022 June 2023 2022 Annual 10 CFR 50.46 Report of Changes to or Errors in Emergency Core Cooling System Evaluation Models L-23-051, Plan, Nineteenth Inservice Inspection Summary Report2023-06-22022 June 2023 Plan, Nineteenth Inservice Inspection Summary Report L-22-249, License Amendment Request for Adoption of Technical Specification Task Force Traveler TSTF-276-A Revision 2, Change TS 3.8.1. AC Sources-Operating. to Clarify the Power Factor Requirements When Performing Diesel Gener2023-06-0505 June 2023 License Amendment Request for Adoption of Technical Specification Task Force Traveler TSTF-276-A Revision 2, Change TS 3.8.1. AC Sources-Operating. to Clarify the Power Factor Requirements When Performing Diesel Gener ML23144A3562023-05-25025 May 2023 Information Meeting with a Question and Answer Session to Discuss NRC 2022 End of Cycle Plant Performance Assessment of Perry Nuclear Power Plant, Unit 1 L-23-134, Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations2023-05-23023 May 2023 Response to NRC Regulatory Issue Summary 2023-01 Preparation and Scheduling of Operator Licensing Examinations L-23-065, Annual Financial Report2023-05-22022 May 2023 Annual Financial Report ML23124A1742023-05-17017 May 2023 Energy Harbor Fleet Vistra License Transfer - Request for Withholding Information from Public Disclosure for Commance Peak Plant, Units 1 & 2, Beaver Valley Station, Units 1 & 2, Davis Besse Station, Unit 1 and Perry Plant, Unit 1 ML23129A0112023-05-16016 May 2023 Notice of Consideration of Approval of Indirect and Direct License Transfer for Comanche Peak Plant, Units 1 & 2, Beaver Valley Station, Units 1 & 2, Davis Besse Station, Unit 1 and Perry Plant, Unit 1 (EPID L-2023-LLM-0000) (Letter) IR 05000440/20230012023-05-0404 May 2023 Integrated Inspection Report (05000440/2023001) L-23-122, Annual Radiological Environmental Operating Report2023-04-26026 April 2023 Annual Radiological Environmental Operating Report L-23-121, Annual Radiological Effluent Release Report2023-04-26026 April 2023 Annual Radiological Effluent Release Report 2024-01-30
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Hr. Schvenccr, Chief.
. _Licensing 2.
D:lviston of i.tcenUnit .
- u. ;S *. Nuclear Regulatory Co111dsdon
Dear Hr. Schvencer:
Perry Nuclear ;over flant Doc~t No,.* so~440; 50~441 so conftniator:,.Jteti -
Undervolta&e.Pfotectton.
Further revi~w a11d analysis of the Class IE unden-oltage*protection1che11e has been conducted iii respe>nlie t~ FSAR *qu~ation 430.17*. A var~~ty of
- grid conditions were evaluated and computer daulaUoiie u1ed to etudy the !Jfff!cts of the 31,s 'itv ayit:em gr*d voltages in relation to the .
Clase IE bue voltage. .Voltage ,natyses in both .steady atute and :
transient. condition were perfcirnied. * * *
- Tt1c acc~l'tance criteria for t_he .ClaBS 1E
- bua volta1es "as baaed on *. ';j the followilig purchase specificatfon requirenaenta: . .. i
- t. .MotQrs are capable of starting fl'.om rea_t and accelerating their specified load with 75%
of rated nameplate voltage e~i&t{ng(dtiring acceleration) at the motor tenninala~ .
- 2. Motors are capable of. delivering their rated horsepower continuously. when .the .terminal voltage is+/- *0% of rated voitage. *
- 3. Hc.,t;ors are capab~:e of deltver{11g _their rated full load tprque at, 70% pf.rated *v~ltage *for infrequent
. five ml11ute Jnt~rval~. ** *
- 4. Ho tors are ~apable ot starttm~ ,dth 110% of rate'd .
~:voua*se 1i'i>pilea *aa: the motor*fenitnda~ * ** *. * *. *
- Rev.lev of aU steady *state cas~s. shows that the Cla88 1E busea sust:aine~
- n6 dcgradati<>n Qf voltage greater tiian lo% duriiig o~et~tion *t111der hll load, goo(:
11hutdovn.
- unit trip and LQCA.aod~li. i"'9 tranalent.*cu.e* ~ - *a *re.** ... *. *
- aevt!ire t:eilt :o:,* 'the auJclliat, .'ayateia~ 11 .!~),tl'tb' *c:~* *,µppor.t' *(.itonraf ~1~*1* .
- durin1 tli* *tarting J>f ~tor* *. *ln only oi,,d,f"t~tl caj,, *~~tlld: '<
0 cHd_.the'voltage .on. th~ Cl*** lEblltie.~ MC~dl!prt!l~~d beiow*ttae.0,5% J~~l for* atarttna Jaotorli. Ira thh worat. came aceilado Perry vaa c*af,derecl tcf be offline 'ta\'. 'startup or juat :trlpped:m~e 111~~ _other' 'iiaj'*qr: ....~..,tt..,
~its of the. CEl .syateti of0il)e and *a feedvater p...p(SOOO .-,) "* _Ul)ually started concurrent with receipt: c,f a LOCA aignal and the *-ltarieoui .
starttn1 ot *the. zero second LOCA 1o~da(21too *KW>. * :1.; thiil c*** the voltaae decays to 73%>ofmotor rate.cLvoltage.. . . . .
In evaluation of this atudy, thl! auxUiary-ayatem provide~ 1uftict1nt and reUable voltage riecea~aryJor litarting*Claiia I~ 11e>tora in*au ca***
except the highly improl,able:aequence deacribed above. In order to. provide further assurance of required ClaH IE operation even undf!r the IIOU adverse conditions, two levels of undervoltage protection will be provided .
for the Class l E buses.
- The first level of protection is. provided .to trip the offaite power
- source breakers arid'start and load* the diesel generator* in the caae of a lose of offsite power. A ,et of widervoltage relays vtll be provided for each ClaH IE bus, set to trip: at 86% of 110tor rated voltaae. The undervoltage relays, fol1ovtn1 a l second fixed tliie delay, wUi initiate the neceB&ary logic to r,onnect the ClaH lE buaea to the dteael generaton.
A LOCA signal initiates a diesel generator start signal, however, the .
- diesel geriei'ator breaker ia not closed unless an undervoltage condition .
exists~ . Hence, even if a LOCA aignal ts rec.eived during the l second time delay vhen voltage ta 86%, a system performance'within regulatory re-quirements is still met. A short time delay *111 required for this level of protection to allow time for fault cle~rtng operations to attempt to return the system to an acceptable level.
- The second level of undervoltage.protection will be provided to.insure the off site power source does not degrade to .a level. which* could jeopardize starting of Class lE motors in an adverie situation.
A second set of undervoltage relays will be provided for each ClaH lE bus, set to trip at 96% of motor rated voltage.* The undervoltage relays will energhe two separate time delay relays. The first time delay relay will initate undervoltage alarms apd a diesel generator start signal after 15 secon~s. The second tilne delay, will be set for approxlmately 5 n1inutes at which time the offsite source breakers: will be tripped and tile diesel* gener11tor loaded on the bus~.* .The five minute timer wtU also insure against motor overheating between 90% and 86% voltage *. The 1110tors purchased for Perry have perfol'liance characteristics.11uch that they can operate for. !nfrequerat 5 minute pedoda:at' 70% 'voltage.* . . , . .
This und~TV~ltage schemede(f.Cl'.'ibed above is presently being incorporated into O!,lr ~eli1BR* 'J,'estlng will al&O!be coriduct:ed to inilure.correct.reJay 11,tttngs.
- Th~ Unal :design and. settings viH be esi:abUshed after a review
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