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Category:MEETING MINUTES & NOTES--CORRESPONDENCE
MONTHYEARML20058N4941993-12-15015 December 1993 Summary of 931130 Meeting W/Sce&G in Rockville,Md Re Licensee Upcoming SG Replacement,Scheduled to Begin Sept 1994.List of Attendees Encl ML20059A5941993-10-14014 October 1993 Summary of 930929 Meeting W/B&W Re Generic Implications for of Steam Generator Leak for Similar Sleeves Installed at Other Facilities.List of Attendees & Meeting Handouts Encl ML20057B9321993-09-20020 September 1993 Summary of 930727 Meeting W/Util & Westinghouse Re Results Analysis of Three Tubes Pulled Form Unit 1 B SG During Last RF7.List of Meeting Attendees & Meeting Handouts Encl ML20128C7481993-01-28028 January 1993 Summary of Operating Reactors Events Meeting 93-03 on 930127.List of Attendees & Elements Discussed Encl ML20058G4341990-10-31031 October 1990 Summary of 901016 Meeting W/Util in Rockville,Md to Discuss Status of Licensing Actions for Facility ML20055G8671990-07-19019 July 1990 Summary of 900709 Meeting W/Util to Discuss Status of Licensing Issues.List of Attendees & Viewgraphs Encl ML20247D5291989-09-0505 September 1989 Summary of Operating Reactors Events Meeting 89-31 on 890830.Significant Event for Input Into NRC Performance Indicator Program Identified ML20246B9571989-08-15015 August 1989 Summary of 890801 Meeting W/Util in Rockville,Md Re Loss of Offsite Power Event at Plant.List of Attendees,Agenda & Handouts Encl ML20247E7021989-07-21021 July 1989 Summary of 890621 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Plant.Discusses Possibility of Next Refueling Outage Being Moved from Mar 1990 to Fall 1990 ML20246P7771989-07-13013 July 1989 Summary of Operating Reactors Events Meeting 89-26 on 890712.Events Discussed & Significant Elements of Events Presented in Encl 2.List of Attendees Also Encl ML20245F2221989-06-0808 June 1989 Summary of Operating Reactors Events Meeting 89-21 on 890531.List of Attendees & Related Info Encl ML20246M9241989-05-0808 May 1989 Summary of 890418 & 19 Meetings W/Region II & Util to Discuss Status of Licensing Issues for Plant.List of Attendees & Handouts Encl ML20248E9911989-04-0404 April 1989 Summary of 890322 Meeting W/Util in Rockville,Md to Discuss Resin Intrusion Into Condensers at Plant.Licensee Requested to Provide Commitment to Evaluate Procedures Involving Steam Generator Tube Rupture Event.Viewgraphs Encl ML20245J2111989-02-28028 February 1989 Summary of 890207 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Facility.List of Attendees & Handouts Encl ML20196C7851988-12-0505 December 1988 Summary of 881129 Meeting W/Util in Atlanta,Ga Re Status of Licensing Issues for Facility.List of Attendees Encl & Related Info Encl ML20195C6971988-10-28028 October 1988 Summary of 881018 Meeting W/Util Re Status of Licensing Issues for Plant.List of Attendees Encl ML20204B3111988-10-14014 October 1988 Summary of 881006 Meeting W/Util in Rockville,Md Re Util Response to NRC Bulletin 88-008, Thermal Stresses in Piping Connected to Rcs ML20154Q2061988-09-28028 September 1988 Summary of 880921 Meeting W/Util & Gilbert/Commonwealth Assoc in Rockville,Md Re Proposed Change to Tech Spec 3.6.1.6, Containment Structural Integrity ML20154Q0571988-09-28028 September 1988 Summary of 880901 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Facility.List of Attendees & Handouts Encl ML20154M4281988-09-20020 September 1988 Summary of 880817 Meeting W/Util in Rockville,Md to Discuss Removal of Fire Protection Tech Specs for Facility & Recent Issuance of Generic Ltr 88-12.Attendance List & Supporting Documentation Encl ML20151D2731988-07-14014 July 1988 Summary of 880628 Meeting W/Util at Facility Re Status of Licensing Issues for Facility.List of Attendees & Handout Providing Current Assessment of Status of Various Licensing Actions Encl ML20195B4691988-06-0606 June 1988 Summary of 880524 Meeting W/Util in Rockville,Md to Discuss Proposed Change to Tech Spec 3.6.1.6, Containment Structural Integrity. Related Info Encl ML20151S7041988-04-22022 April 1988 Summary of 880412 Meeting W/Util in Atlanta,Ga,To Discuss Status of Licensing Issues.List of Attendees,Agenda,Status of TACs & Proposed Tech Specs Encl ML20147E0751988-02-29029 February 1988 Summary of 880217 Meeting W/Util in Rockville,Md Re Status of Current & Future Licensing Actions for Facility.Attendees List,Agenda & Handouts Encl ML20196G0491988-02-29029 February 1988 Summary of 871202 & 03 Meetings W/Util Re Status of Current & Future Licensing Actions for Plant.List of Attendees,Viewgraphs & Related Info Encl ML20236S2911987-11-23023 November 1987 Summary of 871105 & 06 Meetings W/Util,Westinghouse & Comex at Plant & Nuclear Training Ctr Re Audit of Spds.Attendee List & Presentation Matl Encl ML20245C9791987-11-0202 November 1987 Summary of 870929 Meeting W/Util in Atlanta,Ga Re Status of Current & Future Licensing Items.List of Attendees & Status List Encl ML20245C9281987-11-0202 November 1987 Summary of 870805 Meeting W/Util Re Site Tour & Discussion of Technical Issues.List of Attendees,Agenda & Viewgraphs Encl ML20214Q1761987-05-29029 May 1987 Summary of 870518 Meeting W/Util Re NRC Reorganization Concerning Philosophy & Implementation.Status of Current & Future Licensing Items Also Reviewed.Lists of Attendees & Status of Licensing Items Encl ML20206K5011987-04-15015 April 1987 Summary of 870326 Meeting W/Util in Bethesda,Md to Discuss Status of Licensing Actions,Length of Refueling Outage, Upcoming NRC Reorganization & Plant Status ML20205A5801987-03-23023 March 1987 Summary of 870305 Meeting W/Util in Bethesda,Md Re Priority of Licensing Actions for Upcoming Refueling Outage,Length of Refueling Outage & Upcoming NRC Reorganization.Attendees List Encl ML20210S8711987-02-0404 February 1987 Summary of 870127 Meeting W/Util in Bethesda,Md Re Status of Licensing Action for Facility,Including Licensee Approach to Maintaining Steam Generator Integrity & Amends Needed for Refueling Commencing in Mar 1987.List of Attendees Encl ML20210B0351986-09-15015 September 1986 Summary of 860808 Meeting W/Licensee in Bethesda,Md Re Relative Priority & Status of Licensing Actions for CY86 & Util Approach to Maintaining Steam Generator Integrity. Attendee List Encl ML20204G5781986-07-31031 July 1986 Summary of 860627 Meeting W/Utils & Westinghouse in Bethesda,Md to Discuss P-star Analysis for Steam Generators at Facility.List of Attendees & Viewgraphs Encl ML20206E5671986-06-17017 June 1986 Summary of 860612 Meeting W/Util in Bethesda,Md Re Submitted & Proposed Licensing Action,Priorities for Calendar Yr & Steam Generator & Containment Structural Integrity ML20198B4371986-05-16016 May 1986 Summary of 860508 Meeting W/Util in Bethesda,Md to Discuss NRC Re Status of Generic Issues & Priority of Licensing Actions for 1986.Attendee List Encl ML20141F5081986-04-11011 April 1986 Summary of 860402 Meeting W/Util & Gilbert/Commonwealth,Inc in Bethesda,Md Re Fire Protection Items,Including Temp Indication for Reactor Coolant Loop & Deviations Identified in Util .Attendees List & Viewgraphs Encl ML20210K0661986-03-31031 March 1986 Summary of 860321 Meeting W/Util in Bethesda,Md Re Status of Licensing Actions.List of Attendees & Submitted & Proposed Licensing Actions Encl ML20141D1251986-03-31031 March 1986 Summary of 860205 Meeting W/Util at Site to Discuss Mgt Philosophy Re Spent Fuel Storage & Containment Tendon Surveillance & Tour Plant ML20154C9931986-02-24024 February 1986 Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl ML20133F9941985-10-0707 October 1985 Summary of Operating Reactors Events Meeting 85-16 on 850916 Re Briefing of Director,Div Directors & Representatives on Events Occurring Since 850909 Meeting.List of Attendees & Viewgraphs Encl ML20134K8391985-08-12012 August 1985 Trip Rept of 850722 & 23 Site Visits Re Evaluation of Contributing Factors to 850221 Event & Util Internally Recommended Corrections ML20134F2551985-07-31031 July 1985 Summary of 850724-25 Meetings W/Util,In Gilbert/Commonwealth & Interscience Consultants in Bethesda,Md Re Util Fire Protection Reevaluation Program.Fire Protection Program Summary Encl ML20127D1571985-06-13013 June 1985 Summary of 850530 Operating Reactor Events Meeting to Brief Ofc Director,Div Directors & Representatives on Events Since 850515 Meeting.List of Attendees,Viewgraphs & Status of Assignments Encl ML20128N4771985-05-22022 May 1985 Summary of Operating Reactors Events 850515 Meeting.Div Directors or Representatives Briefed on Events Occurring Since 850507 Meeting.Assignment of Followup Review Responsibilities Discussed.Attendance List Encl ML20062B2091982-07-23023 July 1982 Summary of 820721 Meeting W/Westinghouse,Anl,Bechtel,Tsi, Cnasco & Utils in Bethesda,Md Re Progress in Resolving Accelerated Tube Wear at Operating Plants W/Westinghouse Model D Steam Generators 1993-09-20
[Table view] Category:MEETING SUMMARIES-INTERNAL (NON-TRANSCRIPT)
MONTHYEARML20058N4941993-12-15015 December 1993 Summary of 931130 Meeting W/Sce&G in Rockville,Md Re Licensee Upcoming SG Replacement,Scheduled to Begin Sept 1994.List of Attendees Encl ML20059A5941993-10-14014 October 1993 Summary of 930929 Meeting W/B&W Re Generic Implications for of Steam Generator Leak for Similar Sleeves Installed at Other Facilities.List of Attendees & Meeting Handouts Encl ML20057B9321993-09-20020 September 1993 Summary of 930727 Meeting W/Util & Westinghouse Re Results Analysis of Three Tubes Pulled Form Unit 1 B SG During Last RF7.List of Meeting Attendees & Meeting Handouts Encl ML20128C7481993-01-28028 January 1993 Summary of Operating Reactors Events Meeting 93-03 on 930127.List of Attendees & Elements Discussed Encl ML20058G4341990-10-31031 October 1990 Summary of 901016 Meeting W/Util in Rockville,Md to Discuss Status of Licensing Actions for Facility ML20055G8671990-07-19019 July 1990 Summary of 900709 Meeting W/Util to Discuss Status of Licensing Issues.List of Attendees & Viewgraphs Encl ML20247D5291989-09-0505 September 1989 Summary of Operating Reactors Events Meeting 89-31 on 890830.Significant Event for Input Into NRC Performance Indicator Program Identified ML20246B9571989-08-15015 August 1989 Summary of 890801 Meeting W/Util in Rockville,Md Re Loss of Offsite Power Event at Plant.List of Attendees,Agenda & Handouts Encl ML20247E7021989-07-21021 July 1989 Summary of 890621 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Plant.Discusses Possibility of Next Refueling Outage Being Moved from Mar 1990 to Fall 1990 ML20246P7771989-07-13013 July 1989 Summary of Operating Reactors Events Meeting 89-26 on 890712.Events Discussed & Significant Elements of Events Presented in Encl 2.List of Attendees Also Encl ML20245F2221989-06-0808 June 1989 Summary of Operating Reactors Events Meeting 89-21 on 890531.List of Attendees & Related Info Encl ML20246M9241989-05-0808 May 1989 Summary of 890418 & 19 Meetings W/Region II & Util to Discuss Status of Licensing Issues for Plant.List of Attendees & Handouts Encl ML20248E9911989-04-0404 April 1989 Summary of 890322 Meeting W/Util in Rockville,Md to Discuss Resin Intrusion Into Condensers at Plant.Licensee Requested to Provide Commitment to Evaluate Procedures Involving Steam Generator Tube Rupture Event.Viewgraphs Encl ML20245J2111989-02-28028 February 1989 Summary of 890207 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Facility.List of Attendees & Handouts Encl ML20196C7851988-12-0505 December 1988 Summary of 881129 Meeting W/Util in Atlanta,Ga Re Status of Licensing Issues for Facility.List of Attendees Encl & Related Info Encl ML20195C6971988-10-28028 October 1988 Summary of 881018 Meeting W/Util Re Status of Licensing Issues for Plant.List of Attendees Encl ML20204B3111988-10-14014 October 1988 Summary of 881006 Meeting W/Util in Rockville,Md Re Util Response to NRC Bulletin 88-008, Thermal Stresses in Piping Connected to Rcs ML20154Q0571988-09-28028 September 1988 Summary of 880901 Meeting W/Util in Rockville,Md Re Status of Licensing Issues for Facility.List of Attendees & Handouts Encl ML20154Q2061988-09-28028 September 1988 Summary of 880921 Meeting W/Util & Gilbert/Commonwealth Assoc in Rockville,Md Re Proposed Change to Tech Spec 3.6.1.6, Containment Structural Integrity ML20154M4281988-09-20020 September 1988 Summary of 880817 Meeting W/Util in Rockville,Md to Discuss Removal of Fire Protection Tech Specs for Facility & Recent Issuance of Generic Ltr 88-12.Attendance List & Supporting Documentation Encl ML20151D2731988-07-14014 July 1988 Summary of 880628 Meeting W/Util at Facility Re Status of Licensing Issues for Facility.List of Attendees & Handout Providing Current Assessment of Status of Various Licensing Actions Encl ML20195B4691988-06-0606 June 1988 Summary of 880524 Meeting W/Util in Rockville,Md to Discuss Proposed Change to Tech Spec 3.6.1.6, Containment Structural Integrity. Related Info Encl ML20151S7041988-04-22022 April 1988 Summary of 880412 Meeting W/Util in Atlanta,Ga,To Discuss Status of Licensing Issues.List of Attendees,Agenda,Status of TACs & Proposed Tech Specs Encl ML20147E0751988-02-29029 February 1988 Summary of 880217 Meeting W/Util in Rockville,Md Re Status of Current & Future Licensing Actions for Facility.Attendees List,Agenda & Handouts Encl ML20196G0491988-02-29029 February 1988 Summary of 871202 & 03 Meetings W/Util Re Status of Current & Future Licensing Actions for Plant.List of Attendees,Viewgraphs & Related Info Encl ML20236S2911987-11-23023 November 1987 Summary of 871105 & 06 Meetings W/Util,Westinghouse & Comex at Plant & Nuclear Training Ctr Re Audit of Spds.Attendee List & Presentation Matl Encl ML20245C9791987-11-0202 November 1987 Summary of 870929 Meeting W/Util in Atlanta,Ga Re Status of Current & Future Licensing Items.List of Attendees & Status List Encl ML20245C9281987-11-0202 November 1987 Summary of 870805 Meeting W/Util Re Site Tour & Discussion of Technical Issues.List of Attendees,Agenda & Viewgraphs Encl ML20214Q1761987-05-29029 May 1987 Summary of 870518 Meeting W/Util Re NRC Reorganization Concerning Philosophy & Implementation.Status of Current & Future Licensing Items Also Reviewed.Lists of Attendees & Status of Licensing Items Encl ML20206K5011987-04-15015 April 1987 Summary of 870326 Meeting W/Util in Bethesda,Md to Discuss Status of Licensing Actions,Length of Refueling Outage, Upcoming NRC Reorganization & Plant Status ML20205A5801987-03-23023 March 1987 Summary of 870305 Meeting W/Util in Bethesda,Md Re Priority of Licensing Actions for Upcoming Refueling Outage,Length of Refueling Outage & Upcoming NRC Reorganization.Attendees List Encl ML20210S8711987-02-0404 February 1987 Summary of 870127 Meeting W/Util in Bethesda,Md Re Status of Licensing Action for Facility,Including Licensee Approach to Maintaining Steam Generator Integrity & Amends Needed for Refueling Commencing in Mar 1987.List of Attendees Encl ML20210B0351986-09-15015 September 1986 Summary of 860808 Meeting W/Licensee in Bethesda,Md Re Relative Priority & Status of Licensing Actions for CY86 & Util Approach to Maintaining Steam Generator Integrity. Attendee List Encl ML20204G5781986-07-31031 July 1986 Summary of 860627 Meeting W/Utils & Westinghouse in Bethesda,Md to Discuss P-star Analysis for Steam Generators at Facility.List of Attendees & Viewgraphs Encl ML20206E5671986-06-17017 June 1986 Summary of 860612 Meeting W/Util in Bethesda,Md Re Submitted & Proposed Licensing Action,Priorities for Calendar Yr & Steam Generator & Containment Structural Integrity ML20198B4371986-05-16016 May 1986 Summary of 860508 Meeting W/Util in Bethesda,Md to Discuss NRC Re Status of Generic Issues & Priority of Licensing Actions for 1986.Attendee List Encl ML20141F5081986-04-11011 April 1986 Summary of 860402 Meeting W/Util & Gilbert/Commonwealth,Inc in Bethesda,Md Re Fire Protection Items,Including Temp Indication for Reactor Coolant Loop & Deviations Identified in Util .Attendees List & Viewgraphs Encl ML20210K0661986-03-31031 March 1986 Summary of 860321 Meeting W/Util in Bethesda,Md Re Status of Licensing Actions.List of Attendees & Submitted & Proposed Licensing Actions Encl ML20141D1251986-03-31031 March 1986 Summary of 860205 Meeting W/Util at Site to Discuss Mgt Philosophy Re Spent Fuel Storage & Containment Tendon Surveillance & Tour Plant ML20154C9931986-02-24024 February 1986 Summary of Operating Reactors Event Meeting 86-04 on 860210.List of Attendees,Briefing & Reactor Scram Summaries Encl ML20133F9941985-10-0707 October 1985 Summary of Operating Reactors Events Meeting 85-16 on 850916 Re Briefing of Director,Div Directors & Representatives on Events Occurring Since 850909 Meeting.List of Attendees & Viewgraphs Encl ML20134F2551985-07-31031 July 1985 Summary of 850724-25 Meetings W/Util,In Gilbert/Commonwealth & Interscience Consultants in Bethesda,Md Re Util Fire Protection Reevaluation Program.Fire Protection Program Summary Encl ML20127D1571985-06-13013 June 1985 Summary of 850530 Operating Reactor Events Meeting to Brief Ofc Director,Div Directors & Representatives on Events Since 850515 Meeting.List of Attendees,Viewgraphs & Status of Assignments Encl ML20128N4771985-05-22022 May 1985 Summary of Operating Reactors Events 850515 Meeting.Div Directors or Representatives Briefed on Events Occurring Since 850507 Meeting.Assignment of Followup Review Responsibilities Discussed.Attendance List Encl ML20062B2091982-07-23023 July 1982 Summary of 820721 Meeting W/Westinghouse,Anl,Bechtel,Tsi, Cnasco & Utils in Bethesda,Md Re Progress in Resolving Accelerated Tube Wear at Operating Plants W/Westinghouse Model D Steam Generators 1993-09-20
[Table view] |
Text
-- _ _ _ _ _ - _ _ - - _ _ _ _ _ _ _ - . _
August 15, 1989-locket No. 50-395 LICENSEE: South Carolina Electric & Gas Company FACILITY: V.-C. Summer Nuclear Station, Unit No. 1
SUBJECT:
SUMMARY
OF MEETING WITH SOUTH CAROLINA ELECTRIC & GAS COMPANY GENERAL On August 1, 1989,.the NRC staff consisting of representatives of the Office of Nuclear Reactor Regulation (NRR) and Region II met with representatives of the South Carolina Electric & Gas Company (SCE&G) to discuss the loss of offsite power event at the V. C. Summer Nuclear Station. The meeting was held at the NRR offices in Rockville, Maryland. A list of those persons who attended the meeting is included as Enclosure 1. Enclosure 2 was the agenda for the meeting.
DISCUSSION A handout, Enclosure 3, provided information on the SCE&G electrical grid system, the Summer Station offsite power design, a description of the July 11, 1989 and interim short term and long term corrective actions which have been taken or which are under consideration. The licensee also emphasized that, while they considered this a very serious event, they did not believe it was a system instability event. They characterized the severe voltage reduction as being very localized - only one bus tie saw a. voltage reduction. The licensee represented that the' better measure of system impact was frequency shift which was Very small. They further stated that their initial conclusions were that a major contribution to the event was the generator backup relay settings at their McMeekin, Saluda, and Fairfield Stations. The staff indicated at the close of the meeting that if any future information was required that the staff would request it at a later date.
Original Signed By:
l John J. Hayes, Jr., Project Manager Project Directorate 11-1 Division of Reactor Projects -I/II Office of Nuclear Reactor Regulation
Enclosures:
As stated cc w/encls:
See next page PD P -1 JH$yks:sw EA nsam 1 8//p/89 '8/g/89 h 890824o109 spogig ii fDR ADOCK 05000395 PDC
- l. ' * . .;
L /T ,{c j ..,
Mr.' O. S. Bradham South Carolina Electric & Gas Company Virgil C. Sumer Nuclear Station l
cc:
' Mr.. William A. Williams, -Jr.
. Technical Assistant - Nuclear Operations Santee Cooper P. O. Box 764.(Mail Code 153)
Columbia, South Carolina 29218 J. B. Knotts, Jr. , Esq.
L Bishop, Cook, Purcell .
E and Reynolds 1400 L Street, N.W.
Washington, D. C.- 20005-3502 Resident Inspector /Sumer NPS c/o U.S. Nuclear Regulatory Comission Route 1, Box 64-Jenkinsville, South Carolina 29065 Regional Administrator, Region II U.S. Nuclear Regulatory Comission, 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia -30323' Chairman, Fairfield County Council
- P. O. Box -293 Winnsboro, South Carolina 29180
'Mr. Heyward G. Shealy, Chief Bureau of Radiological Health.
South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia,' South Carolina 29201
' South C5rolina Electric & Gas Company Mr. A. R. Koon, Jr. , Manager Nuclear Licensing Virgil C. Sumer Nuclear Station P. O. Box 88 Jenkinsville, South Carolina 29065
gM.<, _
DISTRIBUTION FORIMEETING.
SUMMARY
DATED: August 1, 1989 Facility: Summer, Unit 1
.aocket!Ptlee-
'NRC PDR Local PDR
- PDII-11 Reading T. Murley 12-G-18 J. Sniezet' G-18 S..Varga . 14-E-4 G. Lainas 14-H-3 E. Adensam 14-B-20 P. Anderson. 14-B-20
, J. Hayes 14-B-20 OGC 15-B-18 E. Jordan- MNBB-3302 B. Grimes 9-A-2
- 0. Chopra 8-D-20 C.'Haughney 9-A-1 D. Tondi 8-D-20 E. Mershcho11 RII T. Reed 14-H-25 J.' Carter 12-H-7 N. Kadambi- 11-A-1 C. Rossi .11-E-4 N. Trehan 8-D-20 J. Knight 8-D-20 P. Kang 8-D-20 P. Fillion RII J. Hopkins 14-H-25 L. Engle 14-H-22
.R. Prevatte RII ACRS(10) P-315
- 8. Borchardt' D-19
'DFoI t t l
Os 0 .
4 Enclosure 1 ATTENDANCE AUGUST 1, 1989 SCE8G NRC OTHERS D. Nauman J. Hayes, Jr. J. Hegner (VA. Power)
- 0. Bradham S. Varga R. Saunders (VA. Power)
M. Frick G. Lainas L. Ellis (VA. Power R. Clary O. Chopra A.Mistr(VA. Power) )
W. Higgins C. Haughney H. Ernst, Jr. (Duke Power)
K. Kee D. Tondi R. Gill (Duke Power)
E. Merschoff Jr., (CP&L) i E. /densam R. Snider B. Prunty,(Souther Services
! T. Reed Company) l J. Carter H. Majors (GA. Power)
I N. Kadambi C. Rossi l N. Trehan J. Knight P. Kang l
P. Fillion J. Hopkins L. Engle R. Prevatte 1
. m. Enclosure 2-e
.t
.,a o ,. AGENDA' MEETING ON LOSS'0F GENERATING FACILITIES FROM THE SCE8G GRID AS A RESULT OF JULY II,1989 REACTOR TRIP AUGUST I, 1989 I. INTRODUCTION JACK HAYES (NRC)
II. SCE8G INTRODUCTION OLLIE BRADHAM III. BACKGROUND SCE8G ELECTRICAL GRID SYSTEM KNOX LEE V. C. SUMMER OFFSITE POWER DESIGN RON CLARY IV. DESCRIPTION OF THE EVENT- ,
SUMMER STATION RON CLARY SYSTEM REACTION MARION FRICK TRANSIEMT EVALUATIONS KNOX LEE
! V. CORRECTIVE ACTIONS INTERIM MARION FRICK SHORT TERM LONG TERM V. SCE&G
SUMMARY
DAN NAUMAN l
VI. NRC
SUMMARY
JACK HAYES l
PARTICIPANTS SCE&G NRC OTHERS
, Enclosure 3
'o ,
J JULY 11,1989 LOSS OF OFFSITE POWER MEETING WITH NRC AUGUST 1,1989 WASHINGTON, DC
JULY 11,1989
^ '
TRIP OF VIRGIL C. SUMMER NUCLEAR STATION i i
INTRODUCTION OLLIE BRADHAM BACKGROUND SCJ&G ELECTRIC GRID SYSTEM KNOX LEE V. C. SUMMER OFFSITE POWER DESIGN RON CLARY JULY 11,1989 EVENT SUMMER STATION RON CLARY SYSTEM REACTION MARION FRICK TRANSIENTEVALUATIONS KNOX LEE l CORRECTIVE ACTIONS INTERIM CONTROL MEASURES MARION FRICK SHORT TERM \
LONG TERM
SUMMARY
DAN NAUMAN l
h Og d INTRODUCTION OLLIE BRADHAM
J '
ATTENDEES Dan Nauman Senior Vice President, Power Production Ollie Bradham Vice President, Nuclear Operations Ron Clary Manager, Design Engineering Marion Frick Manager, System Relaying 1
l Knox Lee Manager, '
System Planning i l
Wes Higgins Supervisor, i
)
Regulatory Compliance 1 1
L- _ -- - - - _ _ __ _ _ _ _ . _ _ _ - _ _ . - _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ __ _
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1 V. C. SUMMER OFFSITE POWER .
DESIGN
& l SUMMER STATION EVENT RON CLARY l
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C. SUMMER OFFSITE POWER SYSTEM DESIGN REQUIREMENTS i
NUCLEAR REGULATORY COMMISSION GENERAL DESIGN CRITERIA 17 REGULA TORY GUIDE 1.32 FSAR QUESTIONS STANDARD REVIEWPLAN - SECTION 8.2 INDUSTRYSTANDARDS IEEE 308 IEEE 765 3
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JUL Y 11,1989 TRIP OF VIRGIL C. SUMMER NUCLEAR STATION l
TURBINE TRIP REACTOR TRIP '
LOSS OF OFFSITE POWER TO ESF
.. l BUSSES i RESTARTEVALUATED 4
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SYSTEM REACTION l REVIEW OF S YSTEM OPERA TING CONDITIONS BEFORE AND AFTER THE EVENT SEQUENCE OF EVENTS PRIMARY AND CONTRIBUTING FACTORS GENERATOR BACKUP RELAYS 1
CORRECTIVEACTION l
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SOUTH CAROLINA ELECTRIC & GAS CO.
MAJOR GENERATION
~ MCMEEKIN #1 & #2 254 (0)
V. C. SUMMER 868 (0) SALUDA HYDRO #1 thru #,5 135 (35)
FAIRFIELD PUMP STORAGE
- 1 thru.#8 WATEREE #1 & #2 295 (0) 310 (315) 4,,
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. 1 URQUHART #1 thru #3 251 (251) ,
A. M. WILLIAMS
_ 545 (545)
CANADYS #1 thru #3 395 (395)
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NET-IMPORT'& EXPORT
< 1 SYSTEM LOAD
-n 3040MW BEFORE
' NET TIE LINE 693MW =
NETWORK 730MW~__ NET TIE-LINE FLOWS IN FLOWS ~OUT n
3077MW INTERNAL .TOTALLGEN.
GENERATION. CAPABILITY-389lMW GEN. AVAILABLE SYSTEM JULY ll LOAD 3480MW' 3040MW l AFTER p
l NET TIE-LINE I643MW _
NETWORK.
I70MW _ NET TIE LINE -
-FLOWS IN. FLOWS OUT l
n 1567MW INTERNAL g
. GENERATION
= _. _ _ _ _ _ - - _ . __ _ _ _ - - . - _ _ _ - - _ _ _ _ _ _ - -
SYSTEM OPERATIONS
SUMMARY
OF JULY 11TH EVENT PRE-EVENT POST-EVENT GENERATING STATION MEGAWATTS MEGAVARS MEGAWATTS MEGAVARS 1
- v. C. SUMMER 868 440 0 0 FAIRFIELD 295 65 0 0 MCMEEKIN 254 116 0 0 SALUDA HYDRO 135 45 35 15 WATEREE 310 180 315 210 CANADYS 395 178 395 270 URQUHART 251 63 251 118 A. M. WILLIAMS 545 220 545 270 MISC. 24 10 26 15 SUB-TOTAL 1525 651 1532 883 TOTALS 3077 1317 1567 898 GENERATION LOST - 1517 MW, 651 MVARS PRE-EVENT POST-EVENT INTERNAL GEN. 3077 MW 1567 MW NET INTERCHANGE -37 MW (EXPORT) 1473 MW (IMPORT)
SYSTEM LOAD 3040 MW 3040 MW FREQUENCY 59.99 HZ 59.965 HZ
(.025 HZ DECAY)
SEQUENCE OF EVENTS q
- 1. V. C. SUMMER PLANT TRIP '
- 2. McMEEKIN PLANT TRIP
- 3. SALUDA HYDRO PLANT TRIP
- 4. ONE OR MORE FAIRFIELD HYDRO UNITS TRIP S. SUMMER ESF BUS 1DA TRIP
- 6. ONE OR MORE FAIRFIELD HYDRO UNITS TRIP
- 7. SUMMER ESF BUS 1DB TRIP
- 8. FINAL FAIRFIELD PUMPED STORAGE UNITS TRIP 1
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PRIMAR Y CA USE OF GENERA TION L OSS A T OTHER STA TIONS GENERATOR BACK-UP RELA YING MCMEEKIN STATION SALUDA HYDRO STATION FAIRFIELD PUMPED STORAGE CONTRIBUTING FACTORS L -
PEAK LOADING CONDITIONS HIGH REACTIVE OUTPUT (VARS) FROM SUMMER STATION A UTOMA TIC VOLTA GE REGULA TOR RESPONSE I
s- ,
VOLTAGE DIFFERENTIALS BETWEEN POWER SYSTEM ELEMENTS CA USE PREDOMINANTLY Y REA CTIVE PO WER FL O W (VARS) {
POWER SYSTEM IMPEDANCE IS COMPOSED OF RESISTANCE AND REACTANCE.
THE RATIO OF THE REA CTIVE IMPEDANCE TO RESISTIVE ^
IMPEDANCE ON A TYPICAL TRANSMISSION LINEIS APPROXIMATELY8 TO 1 REAL POWER FLOW (WATTS) CAUSES A VOLTAGE DROP PREDOMINANTLY Y DUE TO THE RESISTANCE PORTION CF TOTAL IMPEDANCE REACTIVE POWER FLOW (VARS) CAUSES A VOLTAGE DROP PREDOMINANTLY Y D UE TO THE REA CTIVE PORTION OF TOTAL IMPEDANCE l
1 SINCE THE REA CTANCE TO RESISTANCE RA TIO IS 811, REA CTIVE
- PO WER FLO WS RESUL TIN LARGER VOL TA GE DROPS THAN REAL ;
POWER FLOWS IMPORTING REAL POWER (WA TTS) FROM MORE DISTANT l LOCA TIONS RESULTS IN SOME VOLTA GE DROP
)
IMPORTING REACTIVE POWER (VARS) FROM MORE DISTANT ?
LOCATIONS RESULTS IN MUCH LARGER VOLTAGE DROPS
}
l LOCAL VAR SUPPLY IS IMPORTANT TO MAINTAINING SYSTEM VOLTAGES i
I CONTRIBUTING FACTORS PEAK LOADING CONDITIONS:
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REQUIRE HIGH REACTIVE POWER (VARS) GENERA TION TO MAINTAIN SYSTEM VOLTAGES HIGH REACTIVE OUTPUT (VARS) FROM SUMMER STA TION:
LOSS OF LARGE BLOCK OF VAR GENERA TION RESULTS IN S YSTEM VOLTAGE REDUCTION AUTOMATIC VOLTAGE REGULATOR ACTION:
SUDDEN DROP IN SYSTEM VOLTAGE WITHOUT GENERA TOR VOLTAGE REGULA TOR ACTION NA TURALL Y LEADS TO HIGHER VAR OUTPUT ACTION OF VOLTAGE REGULA TOR 15 TO RETURN GENERATOR VOLTA GE TO NORMAL RESULTING IN INCREASED EXCITA TION AND INCREASED VAR OUTPUT INCREASED VAR OUTPUTINCREASES TENDENCY OF GENERATOR BACKUP RELAYS TO OPERATE i
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'INCBEASED. REACTIVE (VAR) OUTPUT CAUSES~
i- THE GENERATOR OPERATING POINT TO MOVE 3 .y lIN THE DIRECTION.0F THE RELAY. OPERATING CHARACTERISTIC-
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TRELAY CHARACTERISTIC
( ' UNIT CAPABILITY CURYE p
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107 %
6 175 %
UNIT CAPABILITY
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x FAIRFIEI.D PUMPED
. STORAGE UNIT CAPABILITT N
150 % N 175 %
N '
y
_ _ _ - - _ - . - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ - - - - - - - - - - - - - - - - - ----------------------------_--------------------------------J
F
- . GENERATOR BACKUP RELAYS GENERA TOR BA CKUP RELA YS PRO VIDE PRO TECTION TO THE GENERATOR AGAINSTINTERNAL AND EXTERNAL FAULTS NOT PROPERL Y CLEARED B Y OTHER RELA YS AND CIRCUIT BREAKERS !
COMPROMISE SETTINGS WHICH PROVIDE BETTER GENERATOR PROTECTION ARE MORE SUSCEPTIBLE TO OPERA TION DURING SYSTEM i ABERRATIONS SETTINGS MORE SECURE AGAINST OPERA TION DURING SYSTEM ABERRATIONS PROVIDE LESS PROTECTION TO THE GENERATOR SCE&G'S APPLICATIONS SETAT 150% OF GENERATOR RATING LOOKS INTO TRANSMISSION SYSTEM PROVIDES GOOD GENERATOR PROTECTION UNTIL NOW EXPERIENCE HAS BEEN GOOD INDUSTRY APPLICATIONS DIVERSE REFLECTS VARYING COMPROMISES BETWEEN GENERATOR PROTECTION AND SECURITY AGAINST TRIPPING DURING SYSTEM ABERRATIONS REFLECTS DIFFERENT EXPERIENCES OF OPERA TION DURING SYSTEM ABERRATIONS TELEPHONE SURVEY OF SEVERAL COMPANIES REVEALS APPLICA TION OF SETTINGS AS-LOW-AS 125% AND IN EXCESS OF 200 %
OF GENERATOR RATING
SURVEY OF GENERATOR BACK-UP RELAYING PRACTICES SURVEY RESPONDENTS - 37 ELECTRICAL UTILITIES SUR VEY REPRESENTS 6698 UNIT YEARS OF OPERA TION OF 37 UTILITIES, 30 USE PHASE DISTANCE BACK-UP RELA YS 49% LOOKINTO TRANSMISSIONSYSTEM S1% LOOKINTO STEP-UP TRANSFORMER 2 REPORTED OPERA TIONS DURING SYSTEM SWINGS
- COMMITTEE COMMENTS l
VOLTAGE REGULATOR BOOSTING IN RESPONSE TO A SYSTEM OVERLOAD MAY REQUIRE LIMITING THE REACH OF BACK-UP DISTANCE 1 RELAYS TO PREVENT RELAY OPERATION FOR RECOVERABLE SWINGS, SETTINGS OF MORE THAN 200 % OF GENERATOR RA TINGS MA Y BE REQUIRED
REFERENCE:
A SURVEY OF GENERATOR BACKUP PROTECTION PRACTICES, IEEE COMMITTEE REPORT: GENERATOR BACKUP PROTECTION WORKING GROUP OF IEEE POWER SYSTEM RELAYING.
COMMITTEEREPORTPRINTED JUNE 1989
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PSAP TRANSIENT EVALUATION TRANSIENT STABILITY STUD Y WITH CEB RELA YS A T PREVIOUS SETTING REVEALS THA T THE RELA Y OPERATING SETTING IS BEING APPROACHED DURING THE TRANSIENTPERIOD.
TRANSIENT STABILITY STUD Y WITH CEB RELA YS A T THE NEW OPERA TING SETTING REVEA LS INCREASED PROTECTION FROM INAD VERTENT OPERA TING DURING THE TRANSIENTPERIOD.
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CORRECTIVE ACTIONS MARION FRICK l
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CORRECTIVE ACTIONS 1
1-
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l INTERIM CONTROLS: 1 4
I LIMIT V. C. SUMMER MVAR OUTPUT TO 300 MVARS GENERATE MVARS AT OTHER STATIONS STARTPARR GAS TURBINES DURING PEAK LOADS (ALTERNATE OFFSITESOURCE)
RUN ONE OR MORE OF FAIRFIELD PUMPED STORAGE UNITS AS VAR GENERATORS SHORT-TERM:
1 DE-SENSITIZE GENERA TOR BA CKUP RELA YS l
i LONG-TERM:
INSTALLA TION OF VOLTAGE REGULA TORS ON V. C. SUMMER'S 7.2 KV SYSTEM (ENGINEERING IN PROGRESS) \
FURTHER STUD Y AND EVALUA TION OF GENERA TOR BA CKUP RELA Y SETTINGS (COMPROMISE BETWEEN GENERA TOR BA CKUP PROTECTION AND SECURITY AGAINST OPERA TION FOR SYSTEM ABERRATIONS) ;
l EVALUA TE THE ELIMINA TION OR REVISION OF THEINTERIM CONTROL MEASURES 1
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SUMMARY
DAN NAUMAN l
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