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| | number = ML13043A406 | | | number = ML13043A406 |
| | issue date = 02/12/2013 | | | issue date = 02/12/2013 |
| | title = Susquehanna Steam Electric Station Proposed Amendment No. 309 to License NPF-14 and Proposed Amendment No. 280 to License NPF-22: Change to Technical Specification Surveillance Requirement (SR) 3.8.1.9, 3.8.1.11,3.8.1.12, and 3.8.1.19 to In | | | title = Proposed Amendment No. 309 to License NPF-14 and Proposed Amendment No. 280 to License NPF-22: Change to Technical Specification Surveillance Requirement (SR) 3.8.1.9, 3.8.1.11,3.8.1.12, and 3.8.1.19 to Increase Diesel |
| | author name = Mathew R K | | | author name = Mathew R |
| | author affiliation = NRC/NRR/DE/EEEB | | | author affiliation = NRC/NRR/DE/EEEB |
| | addressee name = Khanna M K | | | addressee name = Khanna M |
| | addressee affiliation = NRC/NRR/DORL/LPLI-2 | | | addressee affiliation = NRC/NRR/DORL/LPLI-2 |
| | docket = 05000387, 05000388 | | | docket = 05000387, 05000388 |
| | license number = NPF-014, NPF-022 | | | license number = NPF-014, NPF-022 |
| | contact person = Li R S | | | contact person = Li R |
| | case reference number = TAC ME9607 | | | case reference number = TAC ME9607 |
| | document type = Memoranda, Request for Additional Information (RAI) | | | document type = Memoranda, Request for Additional Information (RAI) |
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| =Text= | | =Text= |
| {{#Wiki_filter: | | {{#Wiki_filter:February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/ |
| February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/ Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation | | Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation |
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| ==SUBJECT:== | | ==SUBJECT:== |
| SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607) | | SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607) |
| | | By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. |
| By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. | | In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum |
| In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum | |
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| ==Enclosure:== | | ==Enclosure:== |
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| As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 | | As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 G. Matharu, NRR/EEEB (301) 415-4057 |
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| G. Matharu, NRR/EEEB (301) 415-4057 February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/ Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation
| | February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/ |
| | Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation |
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| ==SUBJECT:== | | ==SUBJECT:== |
| SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607) | | SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607) |
| By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. | | By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. |
| | | In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum |
| In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum | |
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| ==Enclosure:== | | ==Enclosure:== |
| As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 (301) 415-4057 DISTRIBUTION: RLi GMatharu RMathew EEEB R/F JWhited NRR_DE_DPR_Resource RidsNrrDeEeeb
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| ADAMS ACCESSION No.: ML13043A406 OFFICE NRR/DE/EEEB NRR/DE/EEEB NRR/DE/EEEB NAME RLi GMatharu RMathew DATE 02/1/13 02/1 /13 02/12/13 OFFICIAL RECORD COPY ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION REGARDING SUSQUEHANNA STEAM ELECTRIC STATION LICENSE AMENDMENT REQUEST TO CHANGE DIESEL GENERATOR SURVEILLANCE REQUIREMENTS TAC NO. ME9607 By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8. that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. | | As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 (301) 415-4057 DISTRIBUTION: RLi GMatharu RMathew EEEB R/F JWhited NRR_DE_DPR_Resource RidsNrrDeEeeb ADAMS ACCESSION No.: ML13043A406 NRR/DE/EEEB NRR/DE/EEEB NRR/DE/EEEB OFFICE NAME RLi GMatharu RMathew DATE 02/1/13 02/1 /13 02/12/13 OFFICIAL RECORD COPY |
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| Surveillance requirements must assure that the necessary quality of systems and components is maintained, that facility operation will be within safety limits, and that the limiting conditions for operations are met. The Electrical Engineering Branch has reviewed the license amendment request (LAR) and developed the following questions regarding the proposed change. | | REQUEST FOR ADDITIONAL INFORMATION REGARDING SUSQUEHANNA STEAM ELECTRIC STATION LICENSE AMENDMENT REQUEST TO CHANGE DIESEL GENERATOR SURVEILLANCE REQUIREMENTS TAC NO. ME9607 By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8. that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation. |
| 1. The proposed change modifies voltage requirements in selective SRs only. The License Amendment Request (LAR) states that SRs associated with DG operation in droop mode are not being revised as voltage and frequency are manually adjusted to allow connection to the grid. The staff considers that all SRs in TS 3.8.1, associated with the DG, demonstrate operational readiness of the DG to perform its intended design functions as delineated in the SSES FSAR Section 8.1.1. The SRs which require DG operation in droop mode should also demonstrate the ability of the DG to achieve required voltage and frequency prior to connecting to the grid. Explain: a. The intent of the voltage range in the SRs not included for change in the amendment. b. How the steady state voltage requirements, currently associated with droop mode SRs, will demonstrate DG operability if the safety busses are below the minimum required 4000 Volts proposed in the LAR. 2. The LAR proposes a new voltage range of 4000 V and 4400 V for SRs 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19. The current requirements of induction motors and other voltage sensitive equipment vary according to available voltage and frequency. Provide excerpts from calculations that validate DG loading when operating at extremes of the proposed voltage range. | | Surveillance requirements must assure that the necessary quality of systems and components is maintained, that facility operation will be within safety limits, and that the limiting conditions for operations are met. |
| }} | | The Electrical Engineering Branch has reviewed the license amendment request (LAR) and developed the following questions regarding the proposed change. |
| | : 1. The proposed change modifies voltage requirements in selective SRs only. The License Amendment Request (LAR) states that SRs associated with DG operation in droop mode are not being revised as voltage and frequency are manually adjusted to allow connection to the grid. The staff considers that all SRs in TS 3.8.1, associated with the DG, demonstrate operational readiness of the DG to perform its intended design functions as delineated in the SSES FSAR Section 8.1.1. The SRs which require DG operation in droop mode should also demonstrate the ability of the DG to achieve required voltage and frequency prior to connecting to the grid. Explain: |
| | : a. The intent of the voltage range in the SRs not included for change in the amendment. |
| | : b. How the steady state voltage requirements, currently associated with droop mode SRs, will demonstrate DG operability if the safety busses are below the minimum required 4000 Volts proposed in the LAR. |
| | : 2. The LAR proposes a new voltage range of 4000 V and 4400 V for SRs 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19. The current requirements of induction motors and other voltage sensitive equipment vary according to available voltage and frequency. |
| | Provide excerpts from calculations that validate DG loading when operating at extremes of the proposed voltage range. |
| | ENCLOSURE}} |
Letter Sequence Other |
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MONTHYEARPLA-6825, Proposed Amendment No. 310 to License NPF-14 and Proposed Amendment No. 282 to License NPF-22: Change to Tech Spec SR 3.8.1.9, 3.8.1.11, 3.8.1.12, and 3.8.1.19 to Increase Diesel Generator Minimum Steady State Voltage2012-09-18018 September 2012
Proposed Amendment No. 310 to License NPF-14 and Proposed Amendment No. 282 to License NPF-22: Change to Tech Spec SR 3.8.1.9, 3.8.1.11, 3.8.1.12, and 3.8.1.19 to Increase Diesel Generator Minimum Steady State Voltage
Project stage: Request
ML12291A4992012-10-19019 October 2012
Acceptance of Requested Licensing Action Change to Technical Specification Surveillance Requirement 3.8.1.9, 3.8.1.11, 3.8.1.12, and 3.8.1.19 to Increase Diesel Generator Minimum Steady State.
Project stage: Acceptance Review
ML13043A4062013-02-12012 February 2013
Proposed Amendment No. 309 to License NPF-14 and Proposed Amendment No. 280 to License NPF-22: Change to Technical Specification Surveillance Requirement (SR) 3.8.1.9, 3.8.1.11,3.8.1.12, and 3.8.1.19 to Increase Diesel
Project stage: Other
ML13305A8912013-11-13013 November 2013
Request for Additional Information Regarding Request to Change Technical Specification 3.3.6.1
Project stage: RAI
ML13298A7582014-03-0707 March 2014
Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirements to Increase Diesel Generator Minimum Steady State Voltage (TAC ME9607 and ME960)
Project stage: RAI
PLA-7243, Withdrawal of Proposed Amendments for Diesel Generator Testing Use of Increased Minimum Steady State Voltage and New Frequency Tolerance2014-12-22022 December 2014
Withdrawal of Proposed Amendments for Diesel Generator Testing Use of Increased Minimum Steady State Voltage and New Frequency Tolerance
Project stage: Withdrawal
ML15027A6112015-02-0909 February 2015
Withdrawal of an Amendment Request
Project stage: Withdrawal
2013-02-12
[Table View] |
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Category:Memoranda
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08/21/1975 Notice of Meeting with Architect Engineers of Mark II Owners to Discuss Load Combinations and Analytical Techniques for Determining Stresses in Mechanical Components and Structures of Mark II Containments
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Closure of Issue Found During 2014 Regulatory Commitment Audit
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Proposed Amendment No. 309 to License NPF-14 and Proposed Amendment No. 280 to License NPF-22: Change to Technical Specification Surveillance Requirement (SR) 3.8.1.9, 3.8.1.11,3.8.1.12, and 3.8.1.19 to Increase Diesel
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ME9609 Susquehanna Steam Electric Station Proposed Amendment No. 309 to License NPF-14 and Proposed Amendment No. 280 to License Npf -22: Change to Technical Specification Surveillance Requirement 3.8.1.19 to Increase Diesel Generator E Min
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2023-03-31
[Table view]
Category:Request for Additional Information (RAI)
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Draft Request for Additional Information Application for Approval of Indirect Transfer of Control of Licenses
ML16060A2302016-03-24024 March 2016
Acceptance of Requested Licensing Action License Amendment Request for Temporary Change of Unit 2 Technical Specifications 3.71 and 3.87 to Allow Replacement of Unit 1 480V Ess Load Center Transformers
ML15316A5632015-11-13013 November 2015
Request for Additional Information Regarding Proposed Relief Requests for the Third 10-Year Inservice Inspection Interval(Cac Nos. MF6302 Through MF6307)
ML15292A1782015-10-15015 October 2015
TSTF-425 LAR Draft 3rd RAIs
ML15230A0802015-08-26026 August 2015
Request for Additional Information Regarding License Amendment Request to Adopt NEI 99-01, Revision 6, EAL Scheme Change
ML15209A9742015-08-24024 August 2015
Request for Additional Information License Amendment Request to Adopt Technical Specifications Task Force Traveler (TSTF)-425
ML15229A2002015-08-17017 August 2015
E-mail from J. Whited to J. Jennings SSES Draft TSTF-425 RAIs
ML15229A2092015-08-17017 August 2015
SSES Draft Request for Additional Information Licensee Request to Adopt TSTF-425
ML15230A0462015-08-17017 August 2015
Draft RAIs SSES EAL Scheme Change LAR in Accordance with NEI 99-01 Rev 6
ML15183A3502015-07-0202 July 2015
SSES Relief Requests 3RR-19, 3RR-20, and 3RR-21 Draft Identified Information Insufficiencies (TAC Nos. MF6302 Through MF6307)
ML15103A3962015-05-22022 May 2015
Request for Additional Information License Amendment Request to Adopt Technical Specifications Task Force Traveler (TSTF)-425 (TAC Nos. MF5151 and MF5152)
ML15128A5162015-05-0808 May 2015
SSES Draft Request for Additional Information LAR for Implementation of TSTF-425
ML15128A5092015-05-0808 May 2015
E-mail from J. Whited to D. Filchner SSES Draft Request for Additional Information LAR for Implementation of TSTF-425
ML15008A4702015-01-30030 January 2015
Request for Additional Information Request to Revise Technical Specification 3.4.10, RCS Pressure and Temperature (P/T) Limits.
ML15016A2742015-01-16016 January 2015
Draft RAIs License Amendment Request for Change to TS 3.4.10 P/T Limits (TAC Nos. MF4597 and MF45980)
ML15016A2722015-01-16016 January 2015
E-mail from J. Whited to D. Filchner Draft RAIs License Amendment Request for Change to TS 3.4.10 P/T Limits (TAC Nos. MF4597 and MF45980)
ML14343A9842015-01-0808 January 2015
Request for Additional Information Relief Request 4RR-01
ML14345A2412014-12-16016 December 2014
Request for Additional Information Request for Order Approving Indirect Transfer of Control and Conforming License Amendments
ML14346A1022014-12-12012 December 2014
Draft License Transfer Revised 2nd RAIs
ML14346A4022014-12-12012 December 2014
Draft RAIs Relief Request 4RR-01
ML14346A4012014-12-12012 December 2014
E-mail from J. Whited to D. Filchner Susquehanna Steam Electric Station Draft RAIs Relief Request 4RR-01
ML14346A1002014-12-12012 December 2014
E-mail from J. Whited to R. Sgarro Susquehanna Steam Electric Station Draft License Transfer Revised 2nd RAIs
ML14342A8082014-12-0808 December 2014
E-mail from J. Whited to R. Sgarro (PPL) SSES Units 1 and 2 Draft RAIs Application for Approval of Indirect Transfer of Control of Licenses
ML14342A8132014-12-0808 December 2014
SSES Units 1 and 2 Draft RAIs Application for Approval of Indirect Transfer of Control of Licenses
ML14233A2772014-08-27027 August 2014
Request for Additional Information License Amendment Request to Change the Low Pressure Safety Limit
ML14233A3392014-08-21021 August 2014
Draft RAIs for Susquehanna Steam Electric Station Units 1 and 2 License Amendment Request for Changes to the Low Pressure Safety Limits
ML13298A7582014-03-0707 March 2014
Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirements to Increase Diesel Generator Minimum Steady State Voltage (TAC ME9607 and ME960)
ML13298A7812014-03-0707 March 2014
Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirement 3.8.1.19 to Increase Diesel Generator Minimum Steady State Frequency (TACs ME9609.
ML14013A1502014-01-31031 January 2014
Request for Additional Information Regarding Relief Requests for the Fourth 10-Year Inservice Testing Interval
ML14024A4752014-01-24024 January 2014
Draft 4th IST RRs 1RR05 RAIs
ML13338A4422013-12-19019 December 2013
Request for Additional Information Regarding Relief Requests for the Fourth Ten-Year Inservice Inspection Interval
ML13312A9142013-12-18018 December 2013
Request for Additional Information Regarding Request for Changes to Technical Specification Surveillance Requirements 3.5.1.12
2023-11-30
[Table view] |
Text
February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/
Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation
SUBJECT:
SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607)
By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation.
In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum
Enclosure:
As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 G. Matharu, NRR/EEEB (301) 415-4057
February 12, 2013 MEMORANDUM TO: Meena K Khanna, Chief Plant Licensing Branch I-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM: Roy Mathew, Acting Chief /RA/
Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation
SUBJECT:
SUSQUEHANNA STEAM ELECTRIC STATION PROPOSED AMENDMENT NO. 309 TO LICENSE NPF-14 AND PROPOSED AMENDMENT NO. 280 TO LICENSE NPF-22: CHANGE TO TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENT (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12, AND 3.8.1.19 TO INCREASE DIESEL GENERATOR MINIMUM STEADY STATE VOLTAGE (TAC NO. ME9607)
By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8.1 that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation.
In an effort to complete our review, the EEEB staff has attached a request for additional information that should be transmitted to the licensee for a formal written response. The written response should be provided to the EEEB staff within 45 days upon the issuance date of this memorandum
Enclosure:
As stated CONTACTS: Rui Li, NRR/EEEB (301) 415-3554 (301) 415-4057 DISTRIBUTION: RLi GMatharu RMathew EEEB R/F JWhited NRR_DE_DPR_Resource RidsNrrDeEeeb ADAMS ACCESSION No.: ML13043A406 NRR/DE/EEEB NRR/DE/EEEB NRR/DE/EEEB OFFICE NAME RLi GMatharu RMathew DATE 02/1/13 02/1 /13 02/12/13 OFFICIAL RECORD COPY
REQUEST FOR ADDITIONAL INFORMATION REGARDING SUSQUEHANNA STEAM ELECTRIC STATION LICENSE AMENDMENT REQUEST TO CHANGE DIESEL GENERATOR SURVEILLANCE REQUIREMENTS TAC NO. ME9607 By letter dated September 18, 2012 (Agencywide Documents Access and Management System Accession No. ML12262A322), PPL Susquehanna, LLC (PPL) submitted a request for amendment to the Technical Specifications (TS), of the Facility Operating License No. NPF-14 and NPF22 for the Susquehanna Steam Electric Station (SSES). The changes would modify the TS Surveillance Requirements (SR) 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19, in TS 3.8. that will improve operation and testing of Diesel Generators (DG) and will provide a more restrictive voltage band for operation.
Surveillance requirements must assure that the necessary quality of systems and components is maintained, that facility operation will be within safety limits, and that the limiting conditions for operations are met.
The Electrical Engineering Branch has reviewed the license amendment request (LAR) and developed the following questions regarding the proposed change.
- 1. The proposed change modifies voltage requirements in selective SRs only. The License Amendment Request (LAR) states that SRs associated with DG operation in droop mode are not being revised as voltage and frequency are manually adjusted to allow connection to the grid. The staff considers that all SRs in TS 3.8.1, associated with the DG, demonstrate operational readiness of the DG to perform its intended design functions as delineated in the SSES FSAR Section 8.1.1. The SRs which require DG operation in droop mode should also demonstrate the ability of the DG to achieve required voltage and frequency prior to connecting to the grid. Explain:
- a. The intent of the voltage range in the SRs not included for change in the amendment.
- b. How the steady state voltage requirements, currently associated with droop mode SRs, will demonstrate DG operability if the safety busses are below the minimum required 4000 Volts proposed in the LAR.
- 2. The LAR proposes a new voltage range of 4000 V and 4400 V for SRs 3.8.1.9, 3.8.1.11, 3.8.1.12 and 3.8.1.19. The current requirements of induction motors and other voltage sensitive equipment vary according to available voltage and frequency.
Provide excerpts from calculations that validate DG loading when operating at extremes of the proposed voltage range.
ENCLOSURE
