ND-21-0654, ITAAC Closure Notification on Completion of ITAAC 2.6.02.02c (Index Number 595)

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ITAAC Closure Notification on Completion of ITAAC 2.6.02.02c (Index Number 595)
ML22052A003
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 02/21/2022
From: Yox M
Southern Nuclear Operating Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
ND-21-0654
Download: ML22052A003 (7)
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Text

Michael J. Yox 7825 River Road Southern Nuclear Regulatory Affairs Director Waynesboro, GA 30830 Vogtie 3 & 4 706-848-6459 tel FEB 2 1 2022 Docket No.;52-025 ND-21-0654 10 CFR 52.99(c)(1)

U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Southern Nuclear Operating Company Vogtie Electric Generating Plant Unit 3 ITAAC Closure Notification on Completion of ITAAC 2.6.02.02c Flndex Number 5951 Ladies and Gentlemen:

In accordance with 10 CFR 52.99(c)(1), the purpose of this letter is to notify the Nuclear Regulatory Commission (NRC) of the completion of Vogtie Electric Generating Plant(VEGP)

Unit 3 Inspections, Tests, Analyses, and Acceptance Criteria (ITAAC), Item 2.6.02.02c

[Index Number 595]. This ITAAC confirms that the load group 1, 2, 3, and 4 inverters in the Non-Class IE Direct Current(DC) and Uninterruptible Power Supply (UPS) System (EDS) supplies the corresponding alternating current(AC) load. The closure process for this ITAAC is based on the guidance described in NEI 08-01,"Industry Guideline for the ITAAC Closure Process under 10 CFR Part 52," which was endorsed by the NRC in Regulatory Guide 1.215.

This letter contains no new NRC regulatory commitments. Southern Nuclear Operating Company(SNC) requests NRC staff confirmation of this determination and publication of the required notice in the Federal Register per 10 CFR 52.99.

If there are any questions, please contact Kelli Roberts at 706-848-6991.

Respectfully submitted 7/cmi Michael J. Yox

Regulatory Affairs Director Vogtie 3 & 4

Enclosure:

Vogtie Electric Generating Plant(VEGP) Unit 3 Completion of 2.6.02.02c [Index Number 595]

MJY/DCH/Sfr

U.S. Nuclear Regulatory Commission ND-21-0654 Page 2 of 3 To:

Southern Nuclear Operating Company/ Georgia Power Company Mr. Peter P. Sena III Mr. D. L. McKinney Mr. H. Nieh Mr. G. Chick Mr. S. Stimac Mr. P. Martino Mr. J.B. Williams Mr. M.J. Vox Mr. A.S. Parton Ms. K.A. Roberts Ms. J.M. Coleman Mr. C.T. Defnall Mr. C.E. Morrow Mr. K.J. Drudy Mr. J.M. Fisher Mr. R.L Beiike Mr. S. Leighty Ms. A.C. Chamberlain Mr. J.C. Haswell Document Services RTYPE: VND.LI.L06 File AR.01.02.06 Nuclear Reouiatorv Commission Ms. M. Bailey Mr. M. King Mr. G. Bowman Ms. A. Veil Mr. C.P. Patel Mr. G.J. Khouri Mr. C.J. Even Mr. B.J. Kemker Ms. N. C. Coovert Mr. C. Welch Mr. J. Gaslevic Mr. O. Lopez-Santiago Mr. G. Armstrong Mr. M. Webb Mr. T. Fredette Mr. C. Santos Mr. B. Davis Mr. J. Vasquez Mr. J. Eargle Mr. T. Fanelli Ms. K. McCurry Mr. J. Parent Mr. B. Griman Mr. V. Hall

U.S. Nuclear Regulatory Comnnission ND-21-0654 Page 3 of 3 Oqlethorpe Power Corporation Mr. R.B. Brinkman Mr. E. Rasmussen Municipal Electric Authority of Georgia Mr. J.E. Fuller Mr. S.M. Jackson Dalton Utilities Mr. T. Bundros Westinahouse Electric Company. LLC Dr. L. Orlani Mr. D.C. Durham Mr. M.M. Corlettl Mr. Z.S. Harper Mr. J.L. Coward Other Mr. 8. W. Kline, Bechtel Power Corporation Ms. L. Matls, Tetra Tech NUS, Inc.

Dr. W.R. Jacobs, Jr., Ph.D., GDS Associates, Inc.

Mr. 8. Roetger, Georgia Public Service Commission Mr. R.L. Trokey, Georgia Public Service Commission Mr. K.C. Greene, Troutman Sanders Mr. 8. Blanton, Baich Bingham

U.S. Nuclear Regulatory Commission ND-21-0654 Enclosure Page 1 of 4 Southern Nuclear Operating Company ND-21-0654 Enclosure Vogtle Electric Generating Plant(VEGP) Unit 3 Completion of 2.6.02.02c [Index Number 595]

U.S. Nuclear Regulatory Commission ND-21-0654 Enclosure Page 2 of 4 ITAAC Statement Design Commitment 2.c) Each EDS load group 1, 2, 3, and 4 inverter supplies the corresponding ac load.

Inspections. Tests. Analyses Testing of each as-built inverter will be performed by applying a simulated or real load, or a combination of simulated or real loads, equivalent to a resistive load greater than 55 kW.

Acceptance Criteria Each inverter provides a line-to-line output voltage of 208 +/-2% V at a frequency of 60 +/-0.5% Hz.

ITAAC Determination Basis Testing was performed in accordance with Unit 3 component test package work orders listed in Reference 1 to demonstrate that each Non-Class 1E direct current(DC)and Uninterruptible Power Supply System (EDS)load group 1, 2, 3, and 4 inverter identified in the Combined License (COL)Appendix C, Table 2.6.2-2(Attachment A)supplies its corresponding alternating current(AC)load.

A load test was performed on each EDS inverter by applying a simulated load greater than the inverter design capacity of 55 kilowatts(kW). Inverter output voltage, frequency, and power were continuously monitored during the test and after stabilization of load, recorded on data sheets included in the component test package work orders listed in Reference 1. Output voltage was verified to meet the specified acceptance criteria of 208 +/-2% Volts(V) at a frequency of 60 +/-0.5% Hertz(Hz) with the specified load applied. The recorded voltage and frequency values are identified in Attachment A for each EDS inverter.

The Unit 3 component test results confirm that each inverter provides a line-to-line output voltage of 208 +/- 2% V at a frequency of 60 +/- 0.5% Hz.

The Unit 3 test results (Reference 1) are available for NRG inspection as part of the Unit 3 ITAAC 2.6.02.02c Completion Package (Reference 2).

ITAAC Finding Review In accordance with plant procedures for ITAAC completion. Southern Nuclear Operating Company(SNC) performed a review of all findings pertaining to the subject ITAAC and associated corrective actions. This review found there are no relevant ITAAC findings associated with this ITAAC.

The ITAAC completion review is documented in the ITAAC Completion Package 2.6.02.02c (Reference 2) and is available for NRC review.

U.S. Nuclear Regulatory Commission ND-21-0654 Enciosure Page 3 of 4 ITAAC Completion Statement Based on the above information, SNC hereby notifies the NRG that iTAAC 2.6.02.02c was performed for VEGP Unit 3 and that the prescribed acceptance criteria were met. Systems, structures, and components verified as part of this ITAAC are being maintained in their as-designed ITAAC compliant condition in accordance with approved piant programs and procedures.

References favailabie for NRG inspection^

1. SV3-EDS-ITR-800595, Rev. 0,"Frequency and Voltage Test Results of Unit 3 EDS inverters: ITAAC 2.6.02.02c, NRC Index Number: 595"
2. 2.6.02.02c-U3-CP-Rev0, ITAAC Completion Package

U.S. Nuclear Regulatory Commission ND-21-0654 Enclosure Page 4 of 4 Attachment A System: Non-Class 1E do and Uninterruptible Power Supply System Load Bank Voltage and Frequency

^Component Name *Tag No.

@ >55kW*

Line A-B 207.3 V Load Group 1 Inverter EDS1-DU-1 Line B-C 206.8 V 59.99 Hz Line C-A 207.4 V Line A-B 207.5 V Load Group 2 Inverter EDS2-DU-1 Line B-C 207.5 V 60.02 Hz Line C-A 207.8 V Line A-B 207.0 V Load Group 3 Inverter EDS3-DU-1 Line B-C 207.6 V 60.12 Hz Line C-A 207.7 V Line A-B 207.8V Load Group 4 Inverter EDS4-DU-1 Line B-C 207.3 V 59.98 Hz Line C-A 207.9 V "Actual test conditions were > 75kW

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