L-PI-10-104, Supplement to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10: Difference between revisions

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{{#Wiki_filter:OCT 2 0 2QM1 L-PI-10-104 10 CFR 50.99 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Prairie lsland Nuclear Generating Plant Unit I Docket 50-282 License No. DPR-42 Sup~lement to Exiaent License Amendment Request to Modifv Technical Specifications Surveillance Requirement 3.8.1 .I0 for Prairie lsland Nuclear Generatina Plant Unit 1 /TAC No. ME48711  
{{#Wiki_filter:OCT 2 0 2QM1                                                               L-PI-10-104 10 CFR 50.99 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Prairie lsland Nuclear Generating Plant Unit I Docket 50-282 License No. DPR-42 Sup~lementto Exiaent License Amendment Request to Modifv Technical Specifications Surveillance Requirement 3.8.1. I 0 for Prairie lsland Nuclear Generatina Plant Unit 1
/TAC No. ME48711


==References:==
==References:==
: 1) Letter from Northern States Power Company, a Minnesota corporation, (NSPM) to the Nuclear Regulatory Commission (NRC), "Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1 .I0 for Prairie lsland Nuclear Generating Plant Unit 1 ," L-PI-10-098, dated October 14, 2010. 2) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 15, 201 0 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1 ," L-PI-10-100, dated October 16, 201 0. 3) Letter from NSPM to the NRC, "Second Response to NRC Request for Additional lnformation received October 15, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit I ," L-PI-10-101, dated October 17, 2010. 4) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 17, 201 0 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1 ," L-PI-10-102, dated October 18, 201 0. 171 7 Wakonade Drive East Welch, Minnesota 55089-9642 Telephone:
: 1) Letter from Northern States Power Company, a Minnesota corporation, (NSPM) to the Nuclear Regulatory Commission (NRC),
651.388.1 121 Document Control Desk Page 2 In Reference 1, NSPM, doing business as Xcel Energy, submiged a License Amendment Request (LAR) to request an exigent amendment to the Prairie Island Nuclear Generating Plant (PINGP)
                  "Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1 . I 0 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-098, dated October 14, 2010.
Unit I Technical Specifications (TS) surveillance requirements (SR). The proposed TS change would allow emergency diesel generator (EDG) D2 to be operable until SR 3.8,1 .I 0 can be performed during the scheduled Unit 1 201 1 refueling outage, Reference I also identified 12 Battery Charger performance issues that should be corrected prior to perFormanw of SR 3.8'1 .I0 for 02. In References 2, 3 and 4, NSPM provided supplemental information in support of the license amendment request. The NRC review of this LAR has identified the need for a dynamic electrical model for evaluation of the Unit I emergency diesel generator performance, As stated below, this letter provides an NSPM commitment to develop a dynamic electrical model. Enclosure 1 provides a listing of issues identified and documented in NSPM's corrective action process (CAP). Enclosure 2 provides proposed TS page 3.8.1-10 revised to clarify that repowering of the battery charger is automatic.
: 2) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 15, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-100, dated October 16, 2010.
Reference 4 contains a numerical error in the third sentence of the first paragraph on page 8 of Enclosure
: 3) Letter from NSPM to the NRC, "Second Response to NRC Request for Additional lnformation received October 15, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit I," L-PI-10-101, dated October 17, 2010.
: 1. The sentence should state:
: 4) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 17, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-102, dated October 18, 2010.
Using these values, the MCC voltages on EDGs Dl and D2 would remain above 67.7% (80% - 12.3%) and the MCC voltages on EDGs D5 and D6 would remain above 69.3% (85% - 15.7%). The supplemental information provided in this letter does not impact the conclusions of the Determination of No Significant Hazards Consideration or Environmental Assessment presented in the Reference 1 submittal as supplemented in References 2, 3 and 4. In accordance with 10 CFR 50.91, NSPM is notifying the State of Minnesota of this LAR supplement by transmitting a copy of this letter and enclosures to the designated State Official.
1717 Wakonade Drive East   Welch, Minnesota 55089-9642 Telephone: 651.388.1121
If there are any questions or if additional information is needed, please contact Jon Anderson at 651 -388-1 121 x7309. Summarv of Commitments This letter contains no revisions to existing commitments. This letter makes the following new commitment: Northern States Power Company, a Minnesota corporation, will develop a dynamic electrical model for the Prairie Island Nuclear Generating Plant Unit 1 emergency diesel generators by December 15,201 1.
 
Document Control Desk Page 3 I declare under penalty of perjury that the hrwaing is true and correct. Executed on OCT % @ 20@ Mark A. Schimmel Site Vice President, Prairie island Nuclear Generating Plant Northern States Power Campany - Minnesota I I Enclosures (2) ! I cc: Administrator, Region Ill, USNRC Project Manager, PINGP, USNRC Resident Inspector, PINGP, USNRC State of Minnesota Enclosure I Supplement to Exifient License Amendment Request to Modify This enclosure provides a list of issues identified and documented in the Northern States Power Company, a Minnesota corporation (NSPM), corrective action process (CAP) to support NRC review the exigent license amendment request (LAR) to modify Technical Specifications (TS) Surveillance Requirement (SR) 3.8.1 -10 for Prairie Island Nuclear Generating Plant (PINGP) Unit 1. For completeness, the list includes the CAP numbers previously provided by letter dated October 18, 201 0. following PINGP design basis accidents and applicability to the Page 1 of 1 ENCLOSURE 2 Technical SpsciFieatlon Pages (Markup) 1 page follows AC Sources-Operating 3.8.1 SR 3.8.1.10 -..--------------  
Document Control Desk Page 2 In Reference 1, NSPM, doing business as Xcel Energy, submiged a License Amendment Request (LAR) to request an exigent amendment to the Prairie Island Nuclear Generating Plant (PINGP) Unit ITechnical Specifications (TS) surveillance requirements (SR). The proposed TS change would allow emergency diesel generator (EDG) D2 to be operable until SR 3.8,1.I   0 can be performed during the scheduled Unit 1 2011 refueling outage, Reference Ialso identified 12 Battery Charger performance issues that should be corrected prior to perFormanw of SR 3.8'1 . I 0 for 02.
----..- -----.. T\fOTES---------------------------
In References 2, 3 and 4, NSPM provided supplemental information in support of the license amendment request.
: 1. All DG star& may be preceded by an engine preIube period. 2 - --This Surveillance shall not be perfomed in &-- MODE l,2,3, or 4. a. De-energization of emergency buses; Verif). on an actual or simulated loss of offsite power signal in conjunction with an actual or simulated safety injection actuation signal:
The NRC review of this LAR has identified the need for a dynamic electrical model for evaluation of the Unit Iemergency diesel generator performance, As stated below, this letter provides an NSPM commitment to develop a dynamic electrical model.
: b. Load shedding from emergency buses; and 24 months c. DG auto-starts from standby condition and energizes emergency loads in 5 60 seconds. SR 3.8.1.11 ............................
Enclosure 1 provides a listing of issues identified and documented in NSPM's corrective action process (CAP). Enclosure 2 provides proposed TS page 3.8.1-10 revised to clarify that repowering of the battery charger is automatic.
NOTE ............................
Reference 4 contains a numerical error in the third sentence of the first paragraph on page 8 of Enclosure 1. The sentence should state:
All DG starts may be preceded by an engine prelube period. ................................................................  
Using these values, the MCC voltages on EDGs D l and D2 would remain above 67.7% (80% - 12.3%) and the MCC voltages on EDGs D5 and D6 would remain above 69.3% (85% - 15.7%).
*A riipdification  
The supplemental information provided in this letter does not impact the conclusions of the Determination of No Significant Hazards Consideration or Environmental Assessment presented in the Reference 1 submittal as supplemented in References 2, 3 and 4.
\till bc insti.llcd durinn or prior to tlie Unit 1-20 1 1-refueling ou&ge to aut~~mnatica~y shed the 12 E33en. Charger from its 11i3r1nal bus and then automatically repower the charger from tlze bus within 60 seconds. -- Compliance wit11 this SR will. be demonstrated after implementa_tion of the m_odificatio~i. Prairie Island Unit 1 - Amendment No. 4-58 Units 1 and 2 3.8.1-10 Unit 2 - Amendment No. 149 Verify on an actual or simulated loss of offsite power signal that the DG auto-starts fiom standby condition. 24 months}}
In accordance with 10 CFR 50.91, NSPM is notifying the State of Minnesota of this LAR supplement by transmitting a copy of this letter and enclosures to the designated State Official.
If there are any questions or if additional information is needed, please contact Jon Anderson at 651-388-1121 x7309.
Summarv of Commitments This letter contains no revisions to existing commitments. This letter makes the following new commitment:
Northern States Power Company, a Minnesota corporation, will develop a dynamic electrical model for the Prairie Island Nuclear Generating Plant Unit 1 emergency diesel generators by December 15,2011.
 
Document Control Desk Page 3 I declare under penalty of perjury that the hrwaing is true and correct.
Executed on     OCT % @ 20@
Mark A. Schimmel Site Vice President, Prairie island Nuclear Generating Plant Northern States Power Campany - Minnesota I Enclosures (2)
!
I cc:   Administrator, Region Ill, USNRC Project Manager, PINGP, USNRC Resident Inspector, PINGP, USNRC State of Minnesota
 
Enclosure I Supplement to Exifient License Amendment Request to Modify This enclosure provides a list of issues identified and documented in the Northern States Power Company, a Minnesota corporation (NSPM), corrective action process (CAP) to support NRC review the exigent license amendment request (LAR) to modify Technical Specifications (TS) Surveillance Requirement (SR) 3.8.1 -10for Prairie Island Nuclear Generating Plant (PINGP) Unit 1. For completeness, the list includes the CAP numbers previously provided by letter dated October 18, 2010.
following PINGP design basis accidents and applicability to the Page 1 of 1
 
ENCLOSURE 2 Technical SpsciFieatlon Pages (Markup) 1 page follows
 
AC Sources-Operating 3.8.1 SR 3.8.1.10   -..-------------- ----..- -----..T\fOTES---------------------------
: 1.       All DG star& may be preceded by an engine preIube period.
2 - --This Surveillance shall not be perfomed in
                  &--
MODE l , 2 , 3 , or 4.
Verif). on an actual or simulated loss of offsite power                   24 months signal in conjunction with an actual or simulated safety injection actuation signal:
: a. De-energization of emergency buses;
: b. Load shedding from emergency buses; and
: c. DG auto-starts from standby condition and energizes emergency loads in 5 60 seconds.
SR 3.8.1.11 ............................ NOTE ............................
All DG starts may be preceded by an engine prelube period.
                ................................................................
Verify on an actual or simulated loss of offsite power                    24 months signal that the DG auto-starts fiom standby condition.
*A riipdification \till bc insti.llcd durinn or prior to tlie Unit 1-2011-refuelingou&ge to aut~~mnatica~y shed the 12 E33en. Charger from its 11i3r1nalbus and then automatically repower the charger from tlze bus within 60 seconds.
                        -     -Compliance wit11 this SR will. be demonstrated after implementa_tionof the m_odificatio~i.
Prairie Island                                                                 Unit 1 - Amendment No. 4-58 Units 1 and 2                                   3.8.1-10                           Unit 2 - Amendment No. 149}}

Revision as of 08:32, 13 November 2019

Supplement to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10
ML102930575
Person / Time
Site: Prairie Island Xcel Energy icon.png
Issue date: 10/20/2010
From: Schimmel M
Northern States Power Co, Xcel Energy
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
L-PI-10-104, TAC ME4871
Download: ML102930575 (6)
v • d • e


Text

OCT 2 0 2QM1 L-PI-10-104 10 CFR 50.99 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Prairie lsland Nuclear Generating Plant Unit I Docket 50-282 License No. DPR-42 Sup~lementto Exiaent License Amendment Request to Modifv Technical Specifications Surveillance Requirement 3.8.1. I 0 for Prairie lsland Nuclear Generatina Plant Unit 1

/TAC No. ME48711

References:

1) Letter from Northern States Power Company, a Minnesota corporation, (NSPM) to the Nuclear Regulatory Commission (NRC),

"Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1 . I 0 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-098, dated October 14, 2010.

2) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 15, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-100, dated October 16, 2010.
3) Letter from NSPM to the NRC, "Second Response to NRC Request for Additional lnformation received October 15, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit I," L-PI-10-101, dated October 17, 2010.
4) Letter from NSPM to the NRC, "Response to NRC Request for Additional lnformation received October 17, 2010 related to Exigent License Amendment Request to Modify Technical Specifications Surveillance Requirement 3.8.1.10 for Prairie lsland Nuclear Generating Plant Unit 1," L-PI-10-102, dated October 18, 2010.

1717 Wakonade Drive East Welch, Minnesota 55089-9642 Telephone: 651.388.1121

Document Control Desk Page 2 In Reference 1, NSPM, doing business as Xcel Energy, submiged a License Amendment Request (LAR) to request an exigent amendment to the Prairie Island Nuclear Generating Plant (PINGP) Unit ITechnical Specifications (TS) surveillance requirements (SR). The proposed TS change would allow emergency diesel generator (EDG) D2 to be operable until SR 3.8,1.I 0 can be performed during the scheduled Unit 1 2011 refueling outage, Reference Ialso identified 12 Battery Charger performance issues that should be corrected prior to perFormanw of SR 3.8'1 . I 0 for 02.

In References 2, 3 and 4, NSPM provided supplemental information in support of the license amendment request.

The NRC review of this LAR has identified the need for a dynamic electrical model for evaluation of the Unit Iemergency diesel generator performance, As stated below, this letter provides an NSPM commitment to develop a dynamic electrical model.

Enclosure 1 provides a listing of issues identified and documented in NSPM's corrective action process (CAP). Enclosure 2 provides proposed TS page 3.8.1-10 revised to clarify that repowering of the battery charger is automatic.

Reference 4 contains a numerical error in the third sentence of the first paragraph on page 8 of Enclosure 1. The sentence should state:

Using these values, the MCC voltages on EDGs D l and D2 would remain above 67.7% (80% - 12.3%) and the MCC voltages on EDGs D5 and D6 would remain above 69.3% (85% - 15.7%).

The supplemental information provided in this letter does not impact the conclusions of the Determination of No Significant Hazards Consideration or Environmental Assessment presented in the Reference 1 submittal as supplemented in References 2, 3 and 4.

In accordance with 10 CFR 50.91, NSPM is notifying the State of Minnesota of this LAR supplement by transmitting a copy of this letter and enclosures to the designated State Official.

If there are any questions or if additional information is needed, please contact Jon Anderson at 651-388-1121 x7309.

Summarv of Commitments This letter contains no revisions to existing commitments. This letter makes the following new commitment:

Northern States Power Company, a Minnesota corporation, will develop a dynamic electrical model for the Prairie Island Nuclear Generating Plant Unit 1 emergency diesel generators by December 15,2011.

Document Control Desk Page 3 I declare under penalty of perjury that the hrwaing is true and correct.

Executed on OCT % @ 20@

Mark A. Schimmel Site Vice President, Prairie island Nuclear Generating Plant Northern States Power Campany - Minnesota I Enclosures (2)

!

I cc: Administrator, Region Ill, USNRC Project Manager, PINGP, USNRC Resident Inspector, PINGP, USNRC State of Minnesota

Enclosure I Supplement to Exifient License Amendment Request to Modify This enclosure provides a list of issues identified and documented in the Northern States Power Company, a Minnesota corporation (NSPM), corrective action process (CAP) to support NRC review the exigent license amendment request (LAR) to modify Technical Specifications (TS) Surveillance Requirement (SR) 3.8.1 -10for Prairie Island Nuclear Generating Plant (PINGP) Unit 1. For completeness, the list includes the CAP numbers previously provided by letter dated October 18, 2010.

following PINGP design basis accidents and applicability to the Page 1 of 1

ENCLOSURE 2 Technical SpsciFieatlon Pages (Markup) 1 page follows

AC Sources-Operating 3.8.1 SR 3.8.1.10 -..-------------- ----..- -----..T\fOTES---------------------------

1. All DG star& may be preceded by an engine preIube period.

2 - --This Surveillance shall not be perfomed in

&--

MODE l , 2 , 3 , or 4.

Verif). on an actual or simulated loss of offsite power 24 months signal in conjunction with an actual or simulated safety injection actuation signal:

a. De-energization of emergency buses;
b. Load shedding from emergency buses; and
c. DG auto-starts from standby condition and energizes emergency loads in 5 60 seconds.

SR 3.8.1.11 ............................ NOTE ............................

All DG starts may be preceded by an engine prelube period.

................................................................

Verify on an actual or simulated loss of offsite power 24 months signal that the DG auto-starts fiom standby condition.

  • A riipdification \till bc insti.llcd durinn or prior to tlie Unit 1-2011-refuelingou&ge to aut~~mnatica~y shed the 12 E33en. Charger from its 11i3r1nalbus and then automatically repower the charger from tlze bus within 60 seconds.

- -Compliance wit11 this SR will. be demonstrated after implementa_tionof the m_odificatio~i.

Prairie Island Unit 1 - Amendment No. 4-58 Units 1 and 2 3.8.1-10 Unit 2 - Amendment No. 149

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