ML20211M027

Monthly Operating Repts for Nov 1986

ML20211M027
Person / Time
Site:	Point Beach
Issue date:	11/30/1986
From:	Burstein S, Krause C WISCONSIN ELECTRIC POWER CO.
To:	NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
References
NUDOCS 8612160218
Download: ML20211M027 (9)

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OCIT98 8T2091EI98

DOCKET NO, 50-266 UNIT NAME Point Beach, Unit 1 DATE December 8, 1986 COMPLETED BY C. W. Krause TELEPHONE 414/221-2001 AVERAGE DAILY UNIT POWER LEVEL MONTH November 1986 AVERAGE AVERAGE AVERAGE DAILY DAILY DAILY POWER LEVEL POWER LEVEL POWER LEVEL DAY MWe NET DAY MWe NET DAY MWe NET 1 498 11 497 21 498 2 497 12 497 22 498 3 497 13 497 23 499 4 497 14 498 24 499 5 494 15 497 25 499 6 482 16 500 26 499 7 500 17 373 27 498 8 498 18 296 28 498 9 494 19 496 29 497 10 498 20 499 30 499 EQR-28a (04-86)

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.- 50-266-UNIT NAME Point Beach Unit 1 DATE -December 8, 1986-REPORT MONTH November, 1986 COMPLETED BY C. W. Krause i

TELEPHONE 414/221-2001 h

o 4 I ce e4 W QM C o to d o W e

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e 'U$ 0 c EO Io $*e l No. Date g [j $ Oj@ Licensee Event y] @'] Cause &. Corrective. Action E4 g- p:

yy Report No. gu gu To Prevent Recurrence lE: .C

,! v3 I

7 861117 F 6.9 A 3 86-006 EC GENERA Failure of output' diodes on inverter jl 1DYO1. Replaced failed diodes.

l 8 861118 F 0 F 6 N/A ZZ ZZZZZZ Power level' administratively limited due to secondary chemistry excursion

following previous day's trip.

i F

i i

j j 1 F: Forced 2 Reason: 3 Method: 4 Exhibit G-Instructions

S

Scheduled A - Equipment Failure (explain) 1 - Manual for preparation of l B - Maintenance or Test 2 - Manual Scram data entry sheets

! C - Refueling 3 - Automatic Scram LER file (NUREG-0161)

{ D - Regulatory Restriction 4 - Continuation of

E - Operator Training & Previous Shutdown

, Licensing Exam 5 - Reduced Load sExhibit I-Same Source

!' F - Administrative 6 - Other (explain)

G - Operational Error (explain) i H - Other (explain) l EQR-28B

(06-86)

I

NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE Docket No. 50-266 Unit Name Point Beach Unit 1 Date December 8, 1986 Completed By C. W. Krause Telephone 414/221-2001 Unit 1 operated at approximately 500 MWe net throughout the s period. A reactor trip occurred at 6:10 PM, November 17. The trip was a result of an instrument bus power supply interruption which occurred when the output diodes on inverter 1DY01 failed.

Unit power was administratively limited the next day due to secondary chemistry excursions resulting from the trip.

Safety-related maintenance during the period included the repair of an instrument air leak on the reactor coolant pump seal water return containment isolation valve 1AOV-313A, and adjustments to PORV discharge header snubber HS-60lR-37A.

No LERs were issued during the period.

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DOCKET NO. 50-301

~

UNIT NAME Point Beach, Unit 2 DATE December 8, 1986 COMPLETED BY C. W. Krause TELEPHONE 414/221-2001 AVERAGE DAILY UNIT POWER LEVEL MONTH November 1986 AVERAGE AVERAGE AVERAGE DAILY DAILY DAILY POWER LEVEL POWER LEVEL POWER LEVEL DAY MWe NET DAY MWe NET DAY MWe NET 1 -2 11 -2 21 -2 2 -2 12 -2 22 -2 3 -2 13 -2 23 -9 4 -2 14 -2 24 -13 5 -2 15 -2 25 -13 6 -2 16 -2 26 -13 7 -2 17 -2 27 -13 8 -2 18 -2 28 -15 9 -2 19 -2 29 -2 10 -2 20 -2 30 83 EQR-28a (04-86)

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-301 UNIT NAME Point Beach Unit 2 DATE December 8, 1986 REPORT MONTH November 1986 COMPLETED BY C. if. Krause TELEPHONE 414/221-2001 a

3 o 9 C^ N IHQM C

~

om c o u o o 'N$

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e C EO b 'o b*o . .

No. Date g. o4o Licensee Event ut at Cause & Corrective Action g

'o$3 $ f}do Report No. $,0 $0 To Prevent Recurrence gym m o m

7 860927 S 716.7 C 4 N/A ZZ ZZZZZZ Continuation of annual outage for refueling and maintenance.

8 861130 S 0.8 B 6 N/A ZZ ZZZZZZ Unit removed from service for turbine overspeed testing.

1F: Forced 2 Reason: 3 Method: 4 Exhibit G-Instructions S: Scheduled A - Equipment Failure (explain) 1 - Manual for preparation of B - Maintenance or Test 2 - Manual Scram data entry sheets C - Refueling 3 - Automatic Scram LER file (NUREG-0161)

D - Regulatory Restriction 4 - Continuation of E - Operator Training & Previous Shutdown Licensing Exam 5 - Reduced Load 5 Exhibit I-Sane Source F - Administrative 6 - Other (explain)

G - Operational Error (explain)

H - Other (explain)

EQR-28B (06-86)

a,,o NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE l Docket No. 50-301 Unit Name Point Beach Unit'2 Date December 8, 1986 Completed By C. W. Krause Telephone 414/221-2001 Unit 2 was shutdown-for its annual refueling for most of the period. At 5:56 AM on November-28, 1986, the reactor was taken critical. At'8:43 AM, the reactor tripped from about 1%

power due to low level in the Unit 2 "A" steam generator. At 11:45 AM of that day, several safety-related snubbers were declared-inoperable. As a result, the reactor startup was delayed until'the snubber problems could be resolved. Shortly thereafter, the startup commenced and the reactor was critical by 2:02 PM that day. The unit was placed on line at 8:44 PM on November 29 following initial criticality and core physics testing. On November 30, the generator was temporarily taken off line for overspeed testing.

Safety-related maintenance included the completion of the upflow modification which reduces the differential pressure across the baffle plates of the core barrel and the completion of the containment integrated leak rate test.

During the period, LER 86-006 was issued. This LER documents three reactor trip signals that were received during refueling outage work. The October 1986 monthly report briefly described the trip signals. The October monthly report also stated that LER 86-007 would be issued to document pressurizer pressure transmitter calibration problems. The circumstances of this event have been evaluated and determined not to be LER reportable. LER 86-007 was issued during the period to report steam-generator tube inspection results as required by Technical i Specifications. No other LERs were issued during the period.

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Wisconsin Electnc eam coumr 231 W MICHIGAN.P.O. BOX 2046, MILWAUKEE,Wl53201 (414)277-2345 l

l December 10, 1986 Director of Nuclear Regulatory Operations U. S. NUCLEAR REGULATORY COMMISSION Washington, D. C. 20555 Gentlemen:

MONTHLY OPERATING REPORTS POINT BEACH NUCLEAR PLANT DOCKETS 50-266 AND 50-301 Attached are monthly operating reports for Units 1 and 2, Point Beach Nuclear Plant, for the calendar monta of November 1986.

Very truly yours,

. ~ r m Sol urstein Vice Chairman of the Board Attachments Copies to R. S. Cullen, PSCW J. G. Keppler, NRC Region III NRC Resident Inspector l&

. ..