ML20236P699

Monthly Operating Repts for June 1998 for Vogtle Electric Generating Plant,Units 1 & 2

ML20236P699
Person / Time
Site:	Vogtle
Issue date:	06/30/1998
From:	Hargis T, Woodard J SOUTHERN NUCLEAR OPERATING CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LCV-1169-F, NUDOCS 9807170107
Download: ML20236P699 (7)

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-. . - _ _ . _- ___ __---_-_-__ -_ _--_ - - _______ _ _ _ _ _ - _ _ - _ - - - - _ _ _ _ _ _ _ _ _ - - _ _ _ - _ _ - - _ _ - _ _ _

- s ;- .g u J.D.Woodard Southern Nuclear Executive Vice President Operating Company. Inc.

40 inverness Center Parkway Post Office Box 1295 Birrningham. Alabama 35201 Tel 205.992.5086 SOUTHERN L COMPANY Enery to Serve hur%rld" July 13, 1998 LCV-1169-F Docket Nos. 50-424 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Gentlemen:

VOGTLE ELECTRIC GENERATING PLANT MONT11LY OPERATING REPORT - JUNE 1998 Enclosed are the June 1998, monthly operating reports for Vogtle Electric Generating Plant (VEGP) Units 1 and 2. These reports are submitted in accordance with the Technical Specification 5.6.4.

Sincerely, s

. D. oodard JDW/JLL Enclosures El- VEGP Unit i Monthly Operating Report - June 1998 E2- VEGP Unit 2 Monthly Operating Report - June 1998

. cc: Southern Nuclear Onerating Comnany Mr. J. B. Beasley, Jr.

Mr. M. Sheibani SNC Document Management U. S. Nuclear Regulatory Commission ch  !

Mr. L. A. Reyes, Regional Administrator j Mr. D. Jaffe, Senior Project Manager, NRR Mr. J. Zeiler, Senior Resident Inspector, Vogtle l 9807170107 980630

PDR ADOCK 05000424>

I. R PDR ,

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ENCLOSURE 1 VOGTLE ELECTRIC GENERATING PLANT - UNIT 1 MONTiiLY OPERATING REPORT FOR JUNE 1998 TABLE OF CONTENTS OPERATING DATA REPORT and CIIALLENGES to PORV and SAFETY VALVES Page El-1 UNIT SliUTDOWNS and NARRATIVE REPORT Page El-2 l'

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OPERATING DATA REPORT Docket No.: 50-424 i Unit Narne: VEGP UNIT 1 Date: July 1,1998 Completed By: T.S. Hargis

. Telephone: .(7_06] 826-3469 Operating Etatus

1. Reporting Period: Jun-98

2. Design Electrical Rating (Net MWe): 1169]

3. Maximum Dependable Capacity (Net MWe): 1162 This Month Year _To Date Cumulative

4. Number Of Hours Reactor Was Critical: 720.0 4343.0 85,315.0

5. Hours Generator On Line: 720.0 4321.5 83,996.3_

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0 7, Net Electrical Energy Generated (MWHe): 832,522 5,056,976 92,519,288 CHALLENGES TO PRESSURIZER PORV AND PRESSURIZER SAFETY VALVES Date Tag No. Event Description N/A N/A N/A E1-1

ilNIT SHUTDOWNS DockGt No.. 50-424 ~ ~-

Unit NCme: 5/EGP UNIT 1 Date: July 1,1998 Completed By: _T.S. Hargis__

, , Telephone: (706[826-3469 Reporting Period: Jun-98 Type ' Method of F: Forced Duration Shutting Cause/ Corrective Actions No. Date s. wm (Hours) Comments Reason (1) .Down (2) i N/A N/A N/A N/A N/A N/A N/A j (1) REASON: (2) METHOD:

A - Equipment Failure (Explain) E - Operator Training /Ucense Examination 1. Manual 4. Continuation B - Maintenance or Test F - Administrative 2. Manual Tnp/ Scram 5 Other C Refueling G - Operatonal Error (Explain) 3. Automate Tnp/ Scram D - Regulatory Restncton H - Other (Explain)

CAUSE/ CORRECTIVE ACTION / COMMENTS:

CAUSE:

CORRECTIVEACTION:

l NARRATIVE REPORT ,

1 June 01,1998 00:00 Unit 1 at 100% power with no operating problems.

June 30,1998 23:59 Unit 1 at 100% power with no operating problems.

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4 4 s ENCLOSURE 2 VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 MONTliLY OPERATING REPORT FOR JUNE 1998 TABLE OF CONTENTS OPERATING DATA REPORT and CilALLENGES to PORV and SAFETY VALVES Page E2-1 -

UNIT SHUTDOWNS and NARRATIVE REPORT Page E2-2 l

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' OPERATING DATA REPORT I Docket No.: _50-425___ _

Unit Name: VEGP UNIT 2 t Date: Ju:/1,1998 Comp!eted By: T.S. Hargis Telephone: (706) 826-3469 Operating Status

1. Reporting Period: Jun-98

2. Design Electrical Rating (Net MWe): 1169_

3. Maximum Dependable Capacity (Net MWe): 1167 This Month Year _To Date Cumulative

4. Number Of Hours Reactor Was Critical: 597.1 3054.8 71,878.6

5. Hours Generator On Line: 580.7 30081 71,167.7

6. Unit Reserve Shutdown Hours: 0.0 0.0 0.0

7. Net Electrical Energy Generated (MWHe): 647,083 3,351,747 78,938,473 CHALLENGES TO PRESSURIZER PORV AND PRESSURIZER SAFETY VALVES Date Tag No. Event Description June 09,1998- 2PV0455A PORV cycled 6 times during transient to maintain RCS pressure.

See Event 98-5 June,1998 NRC Monthly Operating Report.

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tJNIT SHUTDOWNS Dock".t No.: 50-425 ~ ~

Unit NIme: VEGP UNIT 2 Date: ~Juld1998 Completed By: T.S. Hargis , _

Telephone: Q06)_826-3469 Rerorting Period: Jun-98 l Type  ; Method of F: Forced Duration ' Shutting lCause/ Corrective Actions No. s: scheduw 4

Date (Hours)_ Reason (1) Down (2) Comments 98-5 06/09/98 F 139.3 A 3 SEE BELOW (1) REASON: (2) METHOD:

A Equipment Failure (Explain) E - Operator Training /Ucense Examinahon 1. Manual 4. Conhnuation B Maintenance or Test F - Administrate've 2. Manualinp/ Scram 5. Other C - Refuehng G - Opershonal Error (Explain) 3. AutomaticTnp/ scram D - Regulatory Restnction H - Other (Explain) j CAUSE/ CORRECTIVE ACTION / COMMENTS:

EVENT _98:5 CAUSE: An equipment fault caused the loss of all Non-1E 13.8 switchgear due to incorrect tap settings for the instantaneous overcurrent relay for breaker 2 NAB 03. This caused a Turbine Trip / Reactor '

trip when the main generator output breakers opened. -

I CORRECTIVEACTJON: Reworked the incorrect tap betting on the overcurrent relay. Performed a broadness review of protective relays, bus transfer scheme and other relay settings. Repaired the turbine bearing (discovery item after trip).

CRITICALPATH WAS: Disassembly and reassembly of turbine bearing U.

NARRATIVE REPORT June 01,1998 00:00 Unit 2 at 100% power with no operating problems.

June 09,1998 08:58 Unit 2 Reactor Trip / Turbine Trip June 09,1998 09:00 Unit 2 Safety injected due to pressurizer low pressure. Entered Mode 3.

June 10,1998 09:36 Unit 2 Entered Mode 4.

June 11,1998 00:38 Unit 2 Entered Mode 3.

June 14,199810:46 Unit 2 Entered Mode 2.

June 14,199811:51 Unit 2 Reactor Critical.

June 14,1998 23:58 Unit 2 Entered Mode 1.

June 15,1998 04:15 Unit 2 Generator tied to grid.

June 16,199818:48 Unit 2 Retumed to 100% Power.

June 30,1998 23:59 Unit 2 at 100% power with no operating problems.

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