ML17277B150
| ML17277B150 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 12/06/1983 |
| From: | Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| GOZ-83-1120, NUDOCS 8312130187 | |
| Download: ML17277B150 (6) | |
Text
REGULATORY ORMATION DISTRIBUTION SY.
M (RIDS)
ACCESSION NBR:8312130187 DOC ~ DATE: 83/12/06
.NOTARIZED:
NO DOCKET FACIL:50"397 WPPSS Nuclear Pr oj ectr Unit ?r Washington Public Powe 05000397 AUTH,NAME AUTHOR AFFILIATION SORENSENrG,C, Wash,ington Public Power Supply System RECIP ~ NAME RECIPIENT AFFILIATION SCHWENCERrA ~
Licensing Branch 2
SUBJECT:
Forwards marked-up Page 9.5 55 from FSAR Section 9>5,6,2r reflecting change in design rating of HPCS diesel generator star ting air sysr,per Reg Guide 1 ',Sys designed for three starts on two air receivers, I
DISTRIBUTION CODE:
8001S COPIES RECEIVED:LTR ENCl/
SIZE:..
TITLE! Licensing Submittal:
PSAR/FSAR Amdts 8 Related Correspondence NOTES'ECIPIENT Ib CODE/NAME NRR/DL/ADL NRR LB2 LA INTERNAL: ELD/HDS2 IE/DEPER/EPB 36 IE/DEQA/QAB 21 NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRR/DE/SAB 2g NRR/DHFS/HFEBPO NRR/DHFS/PSRB NRR/DS I/AEB 26 NRR/DS I/CPS 10 NRR/DSI/ICS8 16 NRR/DSI/PSB 19 NRR/DS I/RSB 23 RGA5 EXTERNAL: ACRS DM"/DSS (AMDTS)
LPbR 03 NSIC 05 COPIES LTTR ENCL 1
0 1
0 0
3 3
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 3
6 1
1 1
1 RECIPIENT ID CODE/NAME NRR LB2 BC AULUCKr"~
"01 IE FILE IE/DEPER/IRB 35 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB 28 NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHFS/LQB 32 NRR/DL/SSPB NRR/DSI/ASB NRR/DS I/CSB 09 NRR/DS I/METB 12 NRR RAB 22 G WIL bu D AMI/MIB BNL(AMDTS ONLY)
FEMA-REf DIP 39 NRC PDR 02'TIS COPIES LTTR ENCL 1
0 1
1 1
1 1
1 1
0 1
1 2
2 1
1 1
1 1
0*
1i 1
1 1i 1
0 1
1 1
1 1
1 1
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 53 ENCL 46
f-y>>r
~
HE%I E
iw-'0
$ )I
'g r
P w ~
<<r.f)
I PE h
C' "1
'Iw ) f II
~
II
~
q I )y 1
I
)ir i ~ CI a 0 iwh
)
l 'gww r] f lO 0
'hr)It "I
'lW 'rr "l f f C fr 1
Q ii ~ )I
~
Jl 1th i
~ i I
)'"Ih, f ii 1
ir1 C (
'<<CI E'll f f
)IE 1 a~
~
lt N Wr' wi "y
r
') flwf'I, r'f<
Ey I EI F
~ I w
rrfshrw I)f ll
,I'f 11 ltI 1
wh f"
.lw>
~ y!g t 11) hr l
r k Iwwg
)CIJ Jw 3 fhhh wh 1
I
)gw r,h I>WIW X II'~
'i, ii'C 1 ~ X
>><<,A hw, I r.'
J.
r w I L '
Ih wI 1i'I
.),)j w
Xl'f>
fw
$ I'I)1'i I 1 ~,
Wi Fi c I i
'I I',
%PI wk il '
WI WIE W
Ih g r.,
W 'h
-Iy E,,
1 I
)
1 f l; f) 1,'jf,0) J>>
> I')
llywI r.I l
)
E If'.
1
Washington Public Power Supply System P.O. Box 968 3000 George Washington Way Richland, Washington 99352 (509) 372-5000 December 6, 1983 G02-83-1120 Docket No. 50-397 Director of Nuclear Reactor Regulation Attention:
Mr. A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing UPS.
Nuclear Regulatory Commission Washington, D.C.
20555
Dear Mr. Schwencer:
Subject:
NUCLEAR PROJECT NO.
2 HPCS DIESEL GENERATOR STARTING AIR SYSTEM FSAR Section 9.5.6.2 will be changed to reflect the design rating of the HPCS Diesel Generator Starting Air System as stated in the WNP-2 compliance with Regulatory Guide 1.9, in FSAR Appendix C.2.
The HPCS Diesel Generator Starting Air System is designed for three (3) starts on two air receivers as documented by test results in NEDO 10905, Revision 3.
Attached is a
copy of the FSAR change reflecting the design rating.
If there are any further questions, please contact Mr. P. L. Powell, Manager, WNP-2 Licensing.
Yery truly yours, G.
C.
- orensen, Manager Regulatory Program JCM/tmh Attachment cc:
R Auluck -
NRC WS Chin
- BPA AD Toth NRC Site 8312130187 83120b PDR ADOCK 05000397, A
PDR~
'I 1
t
WNP-2 AMENDMENT NO.
31 June 1983 The tandem eletric motor-diesel engine driven air compressor includes a battery for starting the diesel engines driven compressor which is actuated from a local panel.
7he starting air system is designed to provide a reliable method for automatically starting each diesel generator unit.
The system design is such as to preclude fouling of its components
~
The volume of the air receivers allows suf-ficient tim for moisture and any contaminants to settle at the bottom of the air receivers where drain valves have been provided.
The air receivers are drained once a day to remove oil, moistur, and rust.
Compressed air piping from the compressor and air dryer is connected to the lower region of the air receivers, whereas th starting air system headers are connected to the top region of the air receivers
~
The starting air supply headers are periodically blown down ~
Xn
- addition, "Y" type strainers are provided upstream of the starting air valves and motors.
These strainers are blown down periodically to assure that they are kept free from II contaminants.
The start system of t HPCS diesel generator is identical to that descgjbed above xcepti the number of air receivers as CB'l available from the air rec ivex$'ll four air motors are activated on a start (only two are required to start the engine);
the redundant starting air compressor is only diesel driven; the starting air equip-ment is redundant, but the systems are not completely redun-dant since there is a
common line from the a'ir receivers to the engine xaam=.
PsV~ ~
+%a-5~+< hasw Acr.~ok.4
<+a.k tag of g o~-~~ s~s pr ~ re.mc.~-
See 8.3.1.1.8.2.5 for additional discussion of the HPCS diesel engine air starting system.
9.5.6.3 Safety Evaluation Each diesel generator air starting system is capable of sup-plying a sufficient quantity of air from its associated air receivers to ensure a successful starting operation of the diesel generator independent of normal plant power sources.
The air starting systems for each diesel generator unit are physically and electrically separated to ensure that no single failure can cause malfunction of both division of standby AC power.
The single failure criterion is satisfied and significantly enhanced by having a dual-equipment air starting system for each diesel generator.
~
I L Q ll