ML20032D553
| ML20032D553 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 11/01/1981 |
| From: | Hunstad A NORTHERN STATES POWER CO. |
| To: | |
| Shared Package | |
| ML20032D551 | List: |
| References | |
| NUDOCS 8111170249 | |
| Download: ML20032D553 (8) | |
Text
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NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE V
DOCKET NO. 282 i-UNIT Prairie; Island No. L DATE 811101 :
COMPLETED BY A. Hunstad TELEPHONE 612-388-1121 HONTH OCTOBER 1981
.i Refueling continued until 1321 on October 27th when the unit was again put
[
on line. After a warmup period, the unit was taken off at 0147 on October-28th
>J for turbine overspeed testing;.the unit was back in service at 0321 the same day. At 1047 the same day, the unit was taken off to investigate m-suspected hydrogen cooler leakage as a possible source of moisture in the n.
Q main generator. The unit was back in service at 1145 on October 29th.
l SPENT FUEL STORAGE UPDATE Fuel assemblies in each core - 121 Fuel assemblies in the spent fuel storage pool - 441
(,/
Licensed. spent fuel storage pool capacity - 1582*
Date of last refueling that can be discharged with present capacity - 1988**
l
- NRC authorized an increase in spent fuel storage capacity from 687 to 1582 spaces on May 13, 1981, but the approval limited the number of spent i
fuel' assemblies which may be stores 1120 until the heavy loads issue has been evaluated for Prairie Islano.
- Pool No. 1 has been modified increasing the current capacity to 1017.
Pool No. 2 will be modified prior to the next refueling.
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DAILY UNIT POWER OUTPUT I
DOCKET NO. 50-282 UNIT Prairie Island No. 1 i
DATE 811101 l
COMPLETED BY A. A. Hunstad i
TELEPHONE 612-388-1121 I
i l
MONTil OCTOBER 1981 I
i AVERACE LOAD MWe-Net DAY AVERAGE LOAD MWe-Net DAY 1
-3 17
-3 E
2
-3 18
-3 x
(
~
T 3
-3 19
-3 I
G U
4
-3 20
-3 a.
5
-3 21
-3 n
6
-3 22
-3 i
7
-3 23
-4 8
-3 24
-12 f
l 9
-3 25
-15 10
-3 26
-15 i
11
-3 27 3
1 12
-3 28 12 I
l 13
-3 29 47 l
l 14
-3 30 291 l.
15
-3 31 380 16
-3 Average loads above 503 IMe-Net are due to cooler condenser circulating water.
t O
OPERATING DATA REPORT 7
,/
DOCKET NO 50 282 DATE 811101 COMPLETED BY A. A. Hunstad OPERATING STATUS.
TELEPHONE 612-388-1121 1.
Unit Name:
Prairie Island No.1 2.
Reporting Period: OCTOBER 1981 Notes 3.
Licensed Thermal Power (MWt):
1650 4.
Nameplate Rating (Grcss MWe):
593 5.
Design Electrical Rating (Net MWe):
530 6.
Maximum Dependable Capacity (Gross MWe): 534 g
7.
Maximum Dependable Capacity (het MWe):
503 8.
If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Ecport:
3 Give Reason:
9.
Power Level To Which Restricted, If Any (Net MWe):
a l
0.
Reasons for Restrictions, If Any:
's This Month Yr-To-Late Cumulative 745 7296 69048 11.
Hours In Reporting Period 12.
Number Of Hours Reactor Was Critical 127.3 6390.0 54557.1 13.
Reactor Reserve Shutdown Hours 0.0 18.8 5556.9 _
14.
Hours Generator On Line 80.1 6340.2 53330.8 15.
Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.
Gross Thermal Energy Generated (MWH) 68509 10181095 82901776 17.
Gross Electrical Energy Generated (!NH) 20570 3330390 26811900 18.
Met Electrical Energy Generated (MWH) 14897 3116718 25062325 19.
Unit Service Factor 10.8 86.9 77.2 20.
Unit availability Factor 10.8 86.9 77.2 21.
Unit Capacity Factor (Using MDC Net) 4.0 84.9 72.2 22.
Unit Capacity Factor (Using DER Net) 3.8 80.6 68.5 23.
Unit Forced Outage Rate 0.0 0.3 10.9
[
4.
Shutdowns Scheduled Over Next 12 Months (Type, Date and Duration of Each):
RefuelEng, Fall 1982, 6 weeks.
25.
It Shut Down at End Of Report Period, Estimated Date of Startup:
)
UNIT SHUTDOWMS AND ER REDUCTIONS
)
DOCKET NO.
50- 282 REPORT MONTil OCTOBER 1981 UNIT NAME Prairie Island No.1 DATE 811101 COMPLETED BY A.. A. Hunstad TELEPHONE 612-388-1121 m
Licensee g
g-g.e Cause & Corrective s
Date a
/mt g
g g
g gm u
Action to gg g
jgg t:cport #
H gu gg Prevent Recurrence j$
X ggN gu 9
i o
m 8
S m
k 810919 S
638.3 C
2 NA NA NA Refueling e
811028 S
1.6 B
NA NA NA NA Shutdown to perforr: turbine A
overspeed testing, t
l 811028 S
25.0 B
1 NA NA i NA Shutdown to investigate suspected hydrogen cooler leakage as a possible source of moisture in the generator.
F: Forced Reauer Method:
Exhibit G-In-S: Scheduled A-Equ i; :..en t Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Automatic Trip Data Entry Sheets D-Regulatory Restriction 4-Other (Explain) for Licensee Event L-Operator Training & License Examination Report (LER) File F-Adm!aistrative (NUREG-0161)
G-Operational Error (Explain) 5 H-Other (Explain Exhibit 1 - Same Source
{
NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE DOCKET NO. 50- 306 UNIT Prairie Island No.2 DATE 811101 COMPLETED BY A. Hunstad TELEPHONE 612-388-1121 MONTH OCTOBER 1981 The unit was base loaded this month until October 29th at 1542 when the a
g unit was shutdown and cooled down to repair containment purge supply valves S
which had failed their local leakage rate test. The valves were repaired and the unit was returned to service at 1842 on October 31st.
a 5
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I-DAILY UNIT POWER OUTPUT ~
I 4
i i
l DOCKET No. 50-306 1
UNIT Prairic Island No. 2 l
DATE 811101 COMPLETED BY A. A. Hunstad TELEPHONE 612-383-1121 i
i l
MONTH OCTOBER 1981 i
I l
i DAY AVERAGE LOJ MWe-NC DAY AVERAGE LOAD ige-Net i
1 512 17 513 f
1 rE i
2 511 18 514 l
g T
3 512 19 515 j
i E
l 1
E 4
508 20 471 l
5 511 21 510 l
l 6
513 22 515 9
7 513 23 511 l
l 8
514 24 508 t
l 9
509 25 502 26 500 i
10 508 l
11 27 500 480 12 508 28 508 13 29 322 505 I
I 14 505 30
-15 15 511 31 47 16 513 4
I I
l Average loads abovt 500 IMe-Net are due to cooler condenser circulating water.
ll9 t
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f I
9 OPERATING DATA REP 03 (s
DOCKET NO 50- 306 DATE 811101 COMPLETED BY A. A. Hunstad OPERATING STATUS TELEPHONE 612-388-1121 1.
Unit Name:
Prairie Island No. 2 Notes 2.
Reporting Period:
OCTOBER 1981 3.
Licensed Thermal Power (MWt):
1650 4.
Nameplate Rating (Gross MWe):
593 5.
Design Electrical Rating (Net MWe):
530 6.
Maximum Dependable Capacity (Gross MWe): 531 g
7.
Maximum Dependable Capacity (Net MWe):
500 8.
If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report:
g oe Give Reason:
c' d
9.
Pcwer Level To Which Restricted, If Anv (Net MWe):
,o
' ~'
0.
Reasons for Restrictions, If Any:
This Month Yr-To-Date Cumulative 11.
Hours In Reporting Period 745 7296 60166 12.
Number Of Hours Reactor Was Critical 698.4 4898.8 51280.6 13.
Reactor Reserve Shutdown Hours 0.0 8.1 1516.1 14.
Hours Generator On Line 694.0 484".0 50415.9 15.
Unit Reserve Shutdown Hours 0.0 0.0 0.0 16.
Gross Thermal Energy Generated (MWH) 1130403 7775358 78874348 17.
Gross Electrical Energy Generated (MWH) 372610 2519660 23278600 18.
Net Electrical Energy Generated (MWH) 350909 2356046 23663949 19.
Unit Service Factor 93.2 66.4 83.8 70.
Unit Availability Factor 93.2 66.4 83.8 21.
Unit Capacity Factor (Using MDC Net) 94.2 64.6 68.5 22.
Unit Capacity Factor (Using DER Net) 88.9 60.9 64.7 23.
Unit Forced Outage Rate 6.8 18.5 5.8
'5 Shutdowns Scheduled Over Next 12 Months (Type, Date and Duration of Each):
Refueling, Summer 1982, 6 weeks.
25.
If Shut Down at End Of Report Period, Estimated Date of Startup:
l
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UNIT SitiDOWNS AND ER REDUCTIONS DOCKET NO.
50- 306 UNIT NAME Prairie Island No.Z REPORT MONTil OCTOBER 1981 DATE 8111G1 COMPLETED BY A. A. Ilunstad TELEPHONS 612-388-1121 A
Licensee ae u
~
c m
o Cause & Corrective Date
.S 7 8
".3 3 Event 3$
$m Action to N
2"S Report //
RO Prevent Recurrence YS N
SE5
$0
^
e" g e
O 5
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811029 F
51.0 B
2 R0-81-25 SA VALVEX Shutdown and cooldown to repair containment purge supply valves which failed their local leakage d
rate test.
m F. Forced Reason Method:
Exhibit G-In-S: Scheduled A-Equipment Failure (Explain) 1-Manual structions for B-Maintenance or Test 2-Manual Trip Preparation of C-Refueling 3-Autom.itic Trip Data Entry Sheats D-Regulatory Restriction 4-Other (Explain) for Licensee Event E-Operator Training & License Examination Report (LER) File F-Administrative (NUREG-0161)
G-Operational Error (Explain) 5 ll-Other (Explain Exhibit 1 - Same Source