ML18347A795
| ML18347A795 | |
| Person / Time | |
|---|---|
| Site: | Palisades  (DPR-020) |
| Issue date: | 06/12/1978 |
| From: | Adams W Consumers Power Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18347A795 (5) | |
Text
.,
consumers Power company Palisades Nuclear Plant: Route 2, Box 154, Covert, Michigan 49043 June 12, 1978 USNuclear Regulatory Commission Mail and Records Section Washington, D.C., 20555 Re:
LICENSE REPORT OF MONTHLY OPERATING DATA DPR-20, DOCKET NO. 50-255 Gentlemen:
':J 1_::-: '~~- c.::
'.~7~f~-~;~
i."-)
~~:)
=:!;~.:-;
- 1.J 0
r:1 V)
-~
\\_::,..)
o;:i c_
~--=
z G\\
~
~
-l~
,_,()
Ecnlosed is a copy of the Monthly Operating Data, and a summary of Operating Experience for the Palisades Nuclear Plant for the month of May 1978.
~
WEAdams General Engineer, cc:
JGKeppler, USNRC RBDeWitt DABixel GHPetitjean CVWaits DEVanFarowe, Div. of Radiological Health Lansing, Mich.
AKozlowski, Mich. Dept. of Labor RCallen, Mich. Public Serv. Comm., Lansing, MI Document Control -
(2) 950-22.35.10 r*,
(/.: ! *, '
I'; *.c.:
~~c~
- -; CJ r:-; -*,
(f)(.t) c:::-r)
- Eo
-re:
0
- .::..~
~./:
~ '\\\\., __..
OPERA TING DAT A REPORT OPERATING STATUS I. Unit-Name: _____________
P~a=l=i~s~a~d:.=:es Notes
- 2. Reporting Perio_~:
- 3. Licensed Thermal Power (MWt):
780501 to 780531 2530
- 4. Nameplate Rating (Gross MWe):
81L 7
- 5. Design Electrical Rating (Net MWe):
- 805 DOCKET NO.
DATE COi\\JPLETED BY TELEPHONE 50-255 6-6-7.8 ~
DIBollnow 616-764-8913
- 6. Mnximum Dependable Capacity (Gross MWe):
67 5 *
- 7. i'rfaximum Dependable Capacity (Net MWe):
63.5
~---:-. ------'------------l
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:
- 9. Power Level To Which Restricted, If Any (Net MWe):
- 10. Reasons For Restrictions, If Any:
- 11. Hours Jn Reporting Period
- 12. Number Of Ht.)l:rs Re::ictor Was Critical
- 13. Reactor Resen'e Shutdown Hours
- 14. Hours Generator On-Line
- 15. Unit Reserve Shutdown Hours
- 16. Gross Thermal Energy Generated (MWH)
- 17. Gross El:::ctrical Energy Generated (MWH)
- 18. Net Electrical Energy Generated (MWH)
- 19. Unit Service Factor
- 20.
- 21.
-n Unit Availability Factor Unit C::!pacity Factor (Using 1'.lDC Net) l.Jnit C::qxicity factor (Using DER Net)
- 23. Unit Forced Outage }{ate This Month 744 509.8 447.,0 947,376
---=2=8~7 _,_250 ---
268,670 60.1%
60.1%
56.9%
44.9%
39_.9%
Yr.-to-Date 3,623 1,063.1 795.0 1,599,312.
480,060 446,718 21.9%
21.9%
19.4%
15.3%
29.3%
- 24. Shutdowns Scheduled Over Next 6 Months (Type. DJte. and DurJtion of Each):
- 25. If Shut Down.-\\t End Of Report Period, EstimJted D:ite of Stnrtup:
- 26. Units In Test Status (Prior to Commercial Operation):
INITIAL CRITICALITY INiTIAL ELECTRICITY CO:'\\IMERCIAL OPERATION Forecast Cumubtive 56,534.
30,462.5 28,.627. 2 51,620,976 16,066,670 15,060,085 50,6%
50.6%
42.0%
33.1%
40.2%
Achieved
- Based on Condenser Backpressure Limitations
. (tl/77)
~.
- ~ -.. ~...... ***:**'""'"*",..,..
- ~_.,.. --.,,.....,,..,.,,:;-.*-*** --~*-**
,~.
,-~** --*
(
- A.AGE DAILY UNIT POWER LEVEL MONTH May 1978 DAY AVERAGE DAILY POWER LEVEL DAY (MWe-Net) 424 17 2
18 3
19 4
20 5
21 6
22 7
23 8
24 9
25 IO
'26 11 27 128 12 28 461 13 29 14 593 30 660 15 31 698 16 INSTRUCTIONS DOCKET NO.
50-255 UNIT Palisades DATE 6;§-78 COMPLETED BY TELEPHONE D!Bollnow 616-764-8913 A VERA GE DAILY POWER LEVEL (MWe-Net) 711' 710 704 308 624.
533 425 629 569.
604.
597 601 599 616 On this format. list the average daily unit power level in MWe-Net for each day in the reporting mllnth. Compute to the nearest whole megawatt.
(9/77)
.........,7-:*'"
- ***.-.,.... -~ ---r. -
~-
No.
Date 3
780501 4
780511 5
780520 6
780522 7
780523 F: Forced S: Schcd ulccl (9/77)
UNIT SHUTDOWNS AND POWER REDUCTIONS REPORT MONTH_ May 1978
,..-L..
"'5
~
~I
~J).....
~
~.::
OJ
..=: t2
~
\\1) 0..
~ :::
Vl
..c :; ~
~
3..;::
f-o2
~
o:::
Q.)
c
~ U) 8 F
239.4 B
1 F
15.7 A
3
\\
F 9.3 A
3 F
12.5 A
3 F
20.1 A
3
. Reason:
A-Equipment Failure (Exp!Jin)
B-Maintenance of Test C-Rcfueling D-Rcgulalory Rcs!riclion Licensee Event Report :tJ:
None None None None None E-Opcrator Training & License Examination r: -Ad min ist ra !( vc G-Opcra ti on al Error (.Explain)
II-Other (Explain) 3
~
E'tj"
<UV)
<lJ
<lJ c:
OJ 0 "O "O
P.. ~
~
Ed
- /) u 0 u RB CRDRVE HG zzzzz HB VALVEX H8'.
VALVEX EB CKTBRK Method:
! -Manual 2-Manual Scram.
3-Autumatic Scram.
4-0lher (Explain)
DOCKET NO.
UNIT NAME DATE COMPLETED BY TELEPHONE Cause & Corrective Action to Prevent Recurrence 50-255 P~lisades 6-6-:ZS DIBol1now 616-764-8913 fee "Narrative Summary of Operating Experience" for May 1978 l
4 s
Exhibit G *Instructions for Preparation or Data Entry Sheets for Licensee Event Report (LER) File (NUREG*
0161)
Exhibit I *Same Soun:e.
1-CONSUMERS POWER COMPANY PALISADES NUCLEAR PLANT DOCKET 50-255 JUNE 6, 1978
SUMMARY
OF OPERATING EXPERIENCES FOR THE PERIOD MAY 1 THROUGH MAY 31, 1978 5-1-78 5-11-78 5-11-78 5-12-78 5-18-78 5-20-78 5-22-78 5-23-78 The unit was taken off line and the reactor brought to a cold shutdown in order to repair leaking CRDM seals.
The unit was brought on line ending an outage of 239.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> duration.
During this outage, 8 leaking CRDMs were repaired.
During the startup it was discovered that CRDM No. 8 could not be withdrawn by normal means.
After determining that adequate shutdown margin would exist with the rod stuck in the fully withdrawn position, the rod was manually jacked out.
(Refer to LER 78-016 for details.)
A reactor trip occurred because of low steam generator water level.
This condition resulted from excessive differential pressure across the newly installed condensate polishing system.
The unit was placed on line after a 15.7 hour8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> outage.
At the request of NRC, all irradiated fuel assemblies were removed from the new high-density fuel racks.
The reactor tripped from low steam generator water level.
The low water level resulted from shrinkage caused by closure of one main steam isolation valve (MSIV).
It is believed the MSIV cillosure was induced by steam flow across the valve disc.
To prevent recurrence, modifications to the valve operation which would increase the opening force on the valve disc are being considered. After a 9.3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> outage, the plant was returned to service.
Closure of both MSIVs resulted in a plant trip.
Pending modifications, plant power is being held at approximately 90%.
One MSIV was instrumented to permit monitoring of valve position, operating air pressure, and electrical power to the valve.' The plant was returned to service after a 12.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> outage.
During the process of transferring station electrical loads from the startup power to station power transformer, the lB bus failed to transfer.
As a result, two primary coolant pumps were de-energized and the reactor tripped on a low PCS flow signal.
The fault was traced to a time delay relay which was replaced.
The plant was returned to service after a 20.1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> outage.