ML20154F036
| ML20154F036 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 08/31/1988 |
| From: | Taylor J, Whittier G Maine Yankee |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 0124L-SLH, 124L-SLH, GDW-88-245, MN-88-91, NUDOCS 8809190228 | |
| Download: ML20154F036 (6) | |
Text
__
=
- !$ 9 8 (168 l
l I
Maine gankee t
O h
l i
l i
i l
i I
I l
i Morsth1y Statistical R ee p o r-t i
I i
I F o r-August 18788 l
l i
n i
t l
8809190228 880831 r
}{0$
PDR ADOCK 05000309 i
R PDC
'f!
.p. OPERATING DATA REPORT Dockct No.:
50-309 Dcto:
02/S:p/88 Completed By:
J.M. TAYLOR Telephone:
207-882-6321
- 1. Unit Name.......................................
Maine Yankee 2..R: porting Period................................
_Auoust 1988
- 3. Licensed Thurmal Power (MWt)....................
_2kIQ_
4.'N;;eplate Rating (Gross NWe)....................
_ 864
- 5. Design Electrical Rating (Not MWe)..............
825
- 6. Mnximum Dependable Capacity (Gross MWe).........
.850
- 7. M ximum Dependable Capacity (Net MWe)...........
810
- 8. If Changes in Capacity Ratings (Items Number 3-7)
Since Last Report, Give Reasons:
NO CHANGES
- 9. Power Level to Which Restricted, if Any (Net NWe) 499
- 10. R;asons for Restrictions, if Anyt one of the autout transf ormers is inocerable THIS MONTH YEAR-TO-DATE CUMULATIVE
- 11. Hours In Reporting Period-744.00 5mO55..QO,
- 12. Number of Hours Reactor Was Critical...........
627.12_ _
5.722.02 111.575 14_
- 13. Rcactor Reserve Shutdown Hours............
0.00 0.00 0.00
- 14. Hours Generator On-line..
519.20 5.600.98 108.356.06
- 15. Unit Reserve Shutdown Hours..................
0.00 0.00 0.00
- 16. Gross Thermal Energy Generated (MWH)........
1.120.136.qQ_
14.407.164.00
_240.767.495.00
- 17. Gross Electrical Energy Generated (MWH)........
338.390.00 4.490.650.00 81.379.380.00_
- 10. Net Electrical Energy Generated (MWH)........
324.693.00 4.340.6302QQ_
77.811.611.00
- 19. Unit Service Factor......
69.78 95.66 78.23
- 20. Unit Availaoilty Factor..
69.78 95.66 78.23
- 21. Unit Capacity Factor (Using MDC Net)........
53.88 91.53 70.85
- 22. Unit Capacity Factor (Using DER Net)........
52.90 89.86 69.07
- 23. Unit Forced Outage Rate..
27.12 3.82 7.14 24 Shutdowns Scheduled Over Next 6 Months:
Date Type Duration 10/15/88 REFUELING OUTAGE 8 WEEKS
- 25. If Shutdown at End of Report Period, Estimated Date of Startup:
N/A y3 s\\\\
/
a Docket No:
50-309 Unit Names Maine Yankee Date:
2 SEPT 88 Completed By:
J.M.
Taylor Telephone:
207-882-6321 Report Month: August, 1988 NARRATIVE
SUMMARY
OF OPERATING EXPERIENCES At tne beginning of the month, the unit was operating at 99% power.
On 1 August, power was reduced to 89% for a 4 hour4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> period tc perform turbine valve tetting only.
On 12 Aagust, begin and of cycle coastdown.
On 13 August, a reactor and turbine trip occured due to a fault on output transf orsoer X-1 A.
a On 18 August, the reactor was brought to criticality and the unit phased to the grid.
On 19 August, power was increr. sed to 57%.
On 23 August, power was increased to 499 MWe and operation continued uning one output transformer while spare transformer X-1S was positioned On beplace transformer X-1A. power was reduced to 30% and the unit taken offline while to 7 August, X-1S was connected to the generator.
On 28 August, X-10 failed due to an internal fault. Power was reduced to 2X.
On 31 August, the unit was phased to the grid using one output trcnsformer and power increased to 499 MWe.
Op: ration with one output transformer continued for the remainder of the month.
l
n AV,2 RAGE DAILY UNIT POWER LEVEL
,FOR AUGUST 1998 Docket No.:
50-309 Unit Maine Yankee Date:
02/Sep/BB Completed By:
J.M. TAYLOR Tel ephone:
207-882-6321 D;y Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net)
(MWe-Net) 0 763 16 1
0 763 17 2
15 765 18 3
420 771 19 4
430 763 20 5
., 432 761 21 6
426 762 22 7
444 762 23 G
468 761 24 9
465 760 25
- 10 463 760 26
! 11 42 756 27 12 O
491 28 13 0
O 29 14 j
O 0
30 1
15 i
287 31 1
,]
I i
W
NIT SHUTDOWNS AND POWER REDUCTION]
Dockct No.:
50-309
- FOR AUGUST 1988 Unit Maine Yankee Date:
02/Sep/88 Completed By:
J.M. TAYLOR Telephone:
207-882-6321 Page:
1 of 1 Number 27-88-10 28-88-10 29-88-10 Ccto 880813 880827 880827 Typ3 (1)
F S
F Durotion (Hours) 126.1 31.6 67 ROOson (2)
A B
A Method (3) 3 1
1 LER #
88-006 N/A N/A Cyctem Codo (4)
EB EB EB Compment Coda (5)
TRANSF TRANSF TRANSF INTERNAL FAULT ON OFF LINE TO INTERNAL FAULT IN ONE OF TWO OUTPUT CONNECT SPARE SPARE TRANSFORMER.
TRANSFOl'st1ERS.
TRANSFORMER.
SPARE TRANSFORMER REPLACED FAULTED DISCONNECTED.
Couco and TRANSFORMER WITH Corrective SPARE TRANSFORMER.
Action 1.
TYPE:
- 2. REASON: (cont) 4.
SYSTEM CODE:
(F)orced F-Administrative Exhibit G-Instructions (S)cheduled 0-Operational Error for Preparation of Data H-Other (Explain)
Cntr y Sheets f or Licensee Event Report
- 2. REASON C4-Ecdipment Failure
- 3. METHOD:
(LER) File (NUREG.0161)
B-Maintenance or Test 1-Manual C-Rafueling 2-Manual Scram
- 5. COMPONENT CODE:
D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source E-Operator Training &
4-Other (Explain) as above.
Liceitse Examination
/
i MaineYankee Emwa eaa orv,m se S we,m f
EDISON ORIVE AUGUSTA, MAINE 04330.(207) 622 4868 September 12, 1988 HN-88-91 GDH-88-245 Office of Resource Management United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention:
Document Control Desk
References:
(a) License No. OPR-36 (Docket No. 50-309)
(b) NUREG-0020, Licensed Operating Reactors Status Summary Report
Subject:
Maine Yankee Monthly Statistical Report Gentlemen:
Enclosed you will find the Monthly Statistical Report for the Maine Yankee Atomic Power Station for August, 1988.
Very truly yours.
MAINE YANKEE 0/
(V 0
l G. D. Whittler, Manager Nuclear Engineering and Licensing i
GDH/bjp Enclosure cc: Mr. Richard H. Hessman Mr. H1111am T. Russell Mr. Patrick H. Sears Mr. Cornelius F. Holden NY 0124L-SLH