ML20127N767

Monthly Operating Rept for Apr 1977 for Monticello Nuclear Generating Plant

ML20127N767
Person / Time
Site:	Monticello
Issue date:	04/30/1977
From:	Mayer L, Shamla W NORTHERN STATES POWER CO.
To:	NRC
References
NUDOCS 9212010410
Download: ML20127N767 (4)

Text

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NSID NOMTHEMN STATES POWER COMPANY M f N N E A PO Ll e. M O N N E G OTA 58400 d

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May 6, 1977 / fog /s# 4

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, ~,, c; Director, Office of Inspection and Enforcement U S Nuclear Regulatory Congnission Washington, DC 20555 Dear Sir HONTICELLO NUCIIAR GENERATING PIMT Docket No. 50-263 License No. DPR-22 Monthly Operating Report April 1977 Attached are ten copics of the Monthly Operating Report for April,1977 for the Monticello Nuclear Generating Plant.

Yours very truly, h.

L 0 Mayer, PE Manager of Nuclear Support Services IDM/ak cc: Director, IE-III, USNRC (1)

Director, MIPC, USNRC (2)

MPCA Attn: J W Feman S I()O 11I 9212010410 770430 PDR ADOCK 05000263 R PDR

2025 Rev. 0

. ,3/3/76 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 50 263 _ _ . _

UNIT 1 DATE 5/3/77 C04PLETED BY W.A. Shamla TELEPIONE 612/295 5151, Ext. 111 APRIL H2ml DAY AVERAGE DAILY POWER LEVEL DAY AVEAGE IAILY IWER LINEL

@Mc-Net) @Me-Net) 17 497 1 547_

2 524 18 550 3 549 19 290 4 550 20 361 5 548 21 508 6 550 22 548 7 547 23 470 ,

S 5,4.8_._ _,,_ 24 525 9 482 25 553 10 508 26 552 il 540 27 551 ,

l '. 513 28 553 550 29 552

)3 30 553 14 _, ,551 554 31 15 16 547 l

1

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~2026 ~

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' Rev. 3 8/13/76- i V& .

' OPERATING DATA REPORT -,

DOCKLT NO. 50-263 UNIT -1 DATE 05/03/77 4

C0f!ETED BY W.A. Shamla-

• TELEPHONE 61 ',i "5-5151 Ext. 111 -

Of9ATI?G STATUS Gross llours in Report Period: 719

1. Reporting Period: APRIL

2. Currently Authorized Power Level (Wt): 1670 Flax. Depend. Capacity (bMe NET):-

536 Design Electrical Rating (We-Net): 545.4

3. Power Level to Which Restricted (if any) (We-Net): .NA

4. Reasons for Restriction.(if any): NA TilIS .40NT11 YR TO DATE ClMILATIVE 710.3 2,810.6 40,887.0

5. Niimber of Ilours Reactor Was Critical . . . . . . . . . . .

Reactor Reserve Shutdown llours . . . . . . . . . . . . . . . . , 0.0 -0.9 940.7-6.

708.0 2,791.4 39,566.6-

7. Ilours Generator On Line ........................

0.0 0.0 0.0-

8. Unit Reserve Shutdown Hours . . . . . . . . . . . . . . . . . . . .

Gross Thermal Energy Generated (tNO . . . . . . . . . . . 1,146,381.6 4,503,024.0 67,165,699.4i 9.

Gross Electrical Energy Generated OMI) . . . . . . . . 390,320 1,535,710 20,180,130 10.

Net Electr ical Energy Generated (!NI) . . . . . . . . . . 376,096- 1,478 ~,804 ' 19,286,276

'1 98.8% 97.6% 79.8%

C Reactor Service Factor .........................

98.8% 97.6% 81.7%

!3 Reactor Availabilit,- Factor ....................

98.5% 97.0% 77.3%-

i Ihiit Se-1ce Fa : .or . . .....-.............

98.5% 97.0% -77.3%

1$ Unit Availability Facter . . .................

97.6%- 95.8% - 70.3% >

'f.i tha t capacity Factor (Ilsing FEY') . . . . . . . . . . . . . . .

95.9% 94.2% 69.0%-

T. Ilnit Capacity Factor (Using Desbn We') . . . . . . . .

1.5%- 1.1%. 8.8%

1?. Unit Forced G itage Pate . . . . . . . . . . . . . . . . . . . . . . . .

19. Shutdm.s Scheduled over Next 6 Months (Type, Date and Duration of Each):

Operator Licensing O'Itage, 6/11/77, 2 days.

If Shutdown at End of Reper' Period, Fstimated Date. of Startup: N/A 20.

[2027 .

-- Rev. 0- - -

3/3/76  :

DOCKET NO. 50-263 UNIT NAME lenticello UNIT S!' JhTR RFDJCTIONS DATE 5/3/77 .

CGIPLETED BY; W.A. Shamla REPORT }10N"11 APRIL __ TELEPHONE'612/295-5151 Ext. 111-MEI110D OF SlUITING DOWN F: FORCED IJURATION TliE REACTOR OR NO. DATE. S: SOIEDULED (Il0URS) REASON (1) RHXJCING IUv1R (2) CORRILTIVE ACTIONS /CGMENTS 3 770419 F 11 B 3 Full reactor scram trip was ,

received when one half of protection systen tripped '

from an APPM Hi Hi signal while power to the other half of the protection system was momentarily- i ..

interrupted for a supply >

power transfer.

l 1

(1) REASON (2) EU i A: - Equipnent Failure (Explain) 1: Manual

~

B: Maint."or Test 2: Manual Scram ,

C: Refueling . 3: Automatic Scram

D: -Regulatory Restriction 41 Other (Explain)

E: ,0perator Training and License Examination.

SIDfMRY: F: Administrative "

G: . Operational Error- (Explaini 11:- Other (Explain)- .

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