ML20249A391

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Monthly Operating Repts for May 1998 for Vogtle Electric Generating Plant
ML20249A391
Person / Time
Site: Vogtle  Southern Nuclear icon.png
Issue date: 05/31/1998
From: Hargis T
SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20249A386 List:
References
NUDOCS 9806160385
Download: ML20249A391 (5)


Text

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fL OPERATING DATA REPORT j

DockCt No.:

50-424_ _.

Unit Name:

VEGP UNIT 1 Date:

~ June _1,1998 Completed By:

_T.S. _Hargis_.

Telephone:

p_06)_826-3469 Operating Status

1. Reporting Period:

May-98 l

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:

744.0_

3623.0, 84_,595.0_

5. Hours Generator On Line:

722.5 3601.5 83,276.3

6. Unit Reserve Shutdown Hours:

0.0_

0.0_

0.0

7. Net Electrical Energy Generated (MWHe):

825,563 4,224,454 91,686,766 CHALLENGES TO PRESSURIZER PORV AND PRESSURIZER SAFETY VALVES Date Tag No.

' Event Description N/A N/A N/A l

E1-1 9906160385 990610 PDR ADOCK 05000424' R

PDR

UNIT SHUTDOWNS Docket No.:

50-424 _ __

Unit Name:

VEGP UNIT 1 Date:

June 1,1998 Completed By:

T.S. Hargis -

Telephone:

}7061816 3469 2

Reporting Period:

May-98 Method of Type Cause/ Corrective Actions F: Forced Duration Shutting No.

tDate (Hours)

Reason (1) own (2)

Comments 8 *d" SEE BELOW 98-1 05/22/98 S

21.5 B

1 I

(2) METHOD:

(1) REASON:

1. Manual 4 Continuation A Equipment Failure (Explasn) E - operator Training /Ucense Examinata
2. Manualinp/ Scram 5 Other B Maintenance or Test F - Administratwo
3. AutomaticTnp/ Scram G OperationalError(Explain)

C Refueling H - Other (Explain)

D Regulatory Restrden CAUSE/ CORRECTIVE ACTION / COMMENTS:

EVENT 98:1 Planned Maintenance Outage Replace the power supply on the main generator voltage regulator and retumed CAUSE:

I CORRECTIVE ACTION:

to service.

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

May 22,1998 20:07 Unit i began power reduction in preparation for planned maintenance o May 23,1998 03:39 Unit 1 Turbine tripped for planned maintenance outage, reactor at 21%

May 24,1998 01:08 Unit 1 generator tied to grid.

May 25,1998 03:00 Unit i retumed to 100%.

May 31,1998 23:59 Unit i at 100% power with no operating problems.

E1-2

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3-s.

ENCLOSURE 2 VOGTLE ELECTRIC GENERATING PLANT - UNIT 2 MONTilLY OPERATING REPORT FOR MAY 1998 TABLE OF CONTENTS L

L OPERATING DATA REPORT and CilALLENGES to PORV and SAFETY VALVES Page E2-1 UNIT Sl1UTDOWNS and NARRATIVE REPORT Page E2-2 i

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_ = _

OPERATING DATA REPORT Docket No.:

50-42_5,_.

Unit Name:

VEGP UNIT 2 Date:

June 1,1998 Completed By:

T.S. _H_argis Telephone:

17_06) 826-3469 l

Operating Status

1. Reporting Period:

Mayi8_

2. Design Electrical Rating (Net MWe):

1169_

3. Maximum Dependable Capacity (Net MWe):

1167 This Month Yeat.To Date Cumulative

4. Number Of Hours Reactor Was Critical:

591.8 2457.7 71.281.5

5. Hours Generator On Line:

588.8 2427.7 70,587.0

6. Unit Reserve Shutdown Hours:

0.0 0.0 0.0

7. Net Electrical Energy Generated (MWHe):

668,032 2,704,664 78.291,390 CHALLENGES TO PRESSURIZER PORV AND PRESSURIZER SAFETY VALVES Date Tag No.

Event Description NA NA NA l

l l

E2-1

1 UNIT SHUTDOWNS Docket No.:

50-425

+

Unit Name:

VEGP DNIT 2'~~

Date:

Mris171998 Completed By:

.T.STHirgi[s..

Telephone:

.{706)826-3469 Reporting Period:

_May 08 l Type

Method of F; forced Duration Shutting Cause/ Corrective Actions No.

Date __8 8""'f(Hours)_ Reason (1)_Down,(2)

, Comments l

98-4 05/08/98 F

155.2 H

3 SEE BELOW (1) REASON:

(2) METHOD:

A Equiprnent failure (Explain) E. Operator Trainin0/Ucense Emannation 1 Manual

4. Conhnuation B. Maintenance or Test F-Admnistrahve
2. Manual Trip / Scram
5. Other C - Refueling G. Operstkmal Error (Explain) 3 AutomaticTnp/ Scram O. Regulatory Restriction H. Other (Explain)

CAUSE/ CORRECTIVE ACTIONICOMMENTS:

EVENT.90-4 CAUSE; Ughtning strike on step up transformer A - Forced Outage CORRECTIVE ACTION: Place spare transformer inservice. Inspected main generator for insulation degradation.

CRITICAL PATH WAS:

Entered mode 3. Placed spare stepup transformer in service. Initiated reactor startup.

Initiated reactor shutdown to inspect main generator for insulation degradation. Repaired MDAFW Train A miniflow valve and performed operability test. Entered mode 1. Performed at speed turbine test. Continued ramp up. Tied to Grid.

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

May 08,1998 04:00 Unit 2 Reactor Trip / TurbineTrip.

May 09,1998 02:53 Unit 2 Entered Mode 2.

May 09,1998 03:58 Unit 2 Reactor Critical.

May 09,199815:22 Unit 2 Reactor shutdown initiated entered Mode 3.

May 12,199815:28 Unit 2 Entered Mode 2.

May 12,199816:32 Unit 2 Reactor Critical.

May 14,1998 00.03 Unit 2 Power increase stopped due to MDAFW Pump A temp. increase on discharge side.

May 14,199812:01 Unit 2 Cleaned limit switch for miniflow isolation valve. Power increase restarted.

May 14,199812:11 Unit 2 Entered Mode 1.

May 14,199815:13 Unit 2 generator tied to grid.

May 15,199813:14 Unit 2 retumed to 100%

May 31,1998 23:59 Unit 2 at 100% power with no operating problems.

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