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PSE&G RESEARCH CORPORATION
RESEARCH AND TESTING LABORATORY
· MAPLEWOOD, NEW JERSEY
FEED~\TATER HAMMER TEST NO. 21 FEEDWATER PIPING SALEM GENERATING
STATION
ra1121ao338 811203 ! PDR ADOCK 05000311. '. p · PDR·
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PSIOCJ 4teseareh Corpora•m ; i
RESEARCH AND TESTING LABORATORY REPORT
To the. Manager -· Salem Generati~g Station - PSE&G
August 12, 1981
No. 66268
Attention: Mr. Wo Schell
FEEDWATER HAMMER TEST, NO. 2~ FEEDWATER PIPING - SALEM
GENERATING STATION
INTRODUCTION
The displacement on 3 axes of No. 21 Feedwater piping at two
ha~gers, FWH 21-17 and FWH 21-18 was determined and the dynamic
pressure ~esponse at drain valve 21BF-58 was recorded during the
50% power trip test of Unit No. 2, on July 23, 1981. ·
SUMMARY
The instrumentation for the feedwater hammer test was in
accordance with the procedure .(Appendix A attached).
Upon co9rdinating with the Control Room and seconds before ··
1.nitiating the 50% power trip, the instrtimentation recorder
was
energized. ·
The first s~gn of movement was after the recorder was energized
23 secopds with a deflection of 0.02 inches (Figure 1). The
move-ment was sinusoidal and lasted 15 seconds with.the maximum
peak to peak movement of approximately 0.35 inch on the Z axes at
both loca,tions and· a frequency of 3. 33 Hz (Figure 2) .. After
that the piping was motionless for 20 seconds, then the thermal
movement· of the pipe was the only movement noted for the duration
of the test (Figure 4). The Z C!XeS is the longitudinal direction
of the pipe at.hanger FWH 21-17 and perpendicular to the pipe at
rwH ~l-18.
-There was no dynamic pressure response at drain valve 21BF-58
noted on the recorder.
Appendix B is the·· calibration data of the equipment used in
·the test.
~~~e~ //£L. Manager Materials Division
GD:jg
CC Mr. W. Schell, Salem Gen. Sta. Mr. R. Kirk; E~9g. _&
Constr •
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UNITED STATES · · NUC.R REGULATORY COMMISSION
WASHINGTON, O. C. 20555
Docket No.: 50-311
Mr. -R. L. Mi ttl, Genera 1 Manager Licensing and
Environment
Energ~ Supply and Engineering Public Service Electric and Gas 80
Park Plaza, Tl7A Newark, New Jersey 07101
Dear Mr. Mi·ttl:
JUN 2 5 1981 · ·
~GR.-ftUtLl._R OP(
.~.t:>.c rn-r~u:::L us:. tlc'E::sa.:u u.:.:..1s:;.;~
1-1.:> E~\·t~.r.:.:;.:~~ . . E.. /...· ·l.)!:8~ :.
~ia ••..•• ;:%~_(;-::-_ ... : ..• TIONS JUN 30128\
TO ~~:;s · · fri'J.1 •• , ••. //.·.Id t (~-: · 1 to/
.J ::.A.AA7 •.• c)
REC'D llJ• 6 \98 ::::::::::::· :::,:.:f.~~.c-. "' " 'UE .....
·... fl:.£ .... • .. .!.:._\j). J.:- 1
0 lo Filt O~tt_ • -" I'".. _\ I.
v o ceii:i~· io w, .5.t;ttl
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• ~r. R. L. hittl, Ganeral Manager
cc: Richard Fryling, Jr., Esq. Assistant General Counsel Public
Service Electric & Gas Company 80 Park Plaza Newark, New Jersey
07101.
Mark Wetterhahn, Esq. Conner, Koore & Cober Suite 1050 1747
Pennsylvania Avenue, Washington, o. c. ~0006 Mr. Leif J. Norrholm
c/o u.· S. Nuclear Regulatory Corrmission Drawer I Hancocks 6ri99e,
New Jersey 08038
JUN
• Mf\SllR
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• l.O TEST OBJECTIVE
SUP 80,l
APPENDIX ~. FEEDWATER BAM!'.:t:R TEST
• fVli\STER :
..
l.l To.demonstrate that the operation of the auxiliary feedwater
syst~, following a plant trip at power, will not cause unacceptable
feedwater hammer.
2.0 REFERENCES
2.1 Government Contact Memorandum June 19, 1978 caller - E.A.
Liden, PSE&G Project Licensing Manager Agency Personal
Involved: R. Stright, NRC Licensing Project Manager
2.2 NRC Letter of Review of SUP 80~1, Appendix G dated 11/7/BO
R. Tedesco (Assistant Director for Li.censing, NCR) to R. Mittl
(General Manager, Licensing, PSE&G).
2.3 PSE&~ Drawing 205336-A-8763, Salem Onit II Auxiliary
Feedwater Piping Diagram.
3.0 PREREQUISITES
d3.l a~rA 3.2
The plant ·±s -operating at 50\ RTP. · .• ..
Inst:rumentation designated in Section 7.0 has been installed to
monitor 21 Stearn Gene~ator feedwater piping at 21FWH-ll-17,
21FWB-ll-18 and 21BFSB.
117~.3.3 -.::;fJift t
The NRC has been given at least a 24 hour n~tification prior to
the commencement of this -test. ( Bft-L. t111-&-.}
. !J1,f/ 3.4 communications are established between the control
room and per.sonnel at the' vi.sic er.
4.0 INITIAL CONDITIONS
Mi_.·.1 · The Test Engj.neer has conducted a briefing with
personnel involved in the test. 5.0 ENVIRONMENTAL CONDITIONS
5.1 The plant is at normal operating pressure and
temperature.
6. 0 · ACCEPTANCE CRITERIA
6.·1 The steam generator feedring modifications shall prevent
excessive vibration and
water hammer following the reactor trip. (>·e~ ~rJ::U,y £.+I)
/t.F-r-&:>p., £!~ ... '5~•1i. P-tv~N/Yi. )
Salem Unit 2 Page 70 of 71 SUP 80.l Appendix G
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7. r.; SPECIAL EQUIPME,_ .
7.1 Visicorder
7.2 i,inear Displacement Transmitter (1) (for monitoring
21FWH-ll-17 and 21FWH-ll-l8 in the X-Y-Z direction) (2)
(3) ~
(4)
(5)
(6)
.7. 3 Accelerometer
7.4 Pressure Transmitter (time constant less than .039
seconds
· range _of 0-3000 psi installed at 21BF58)
?..11
S-'j ~
?./~
6 4-o
6/i"
bZo
. tV ht I
1901 '
:
CALIBRATION DATE
I
9/i~ 4l 1.b?1 /J 91l~~d(1v
zko/y/ 9Jl~ S)(/z ?-2'7'.'.
· ~/zo/$·/
9~J:zzt;:te7 I
zjz.o/k/
s.o DATA COLLECTION
S.l Visicorder traces shall be collected and retained with the
procedur~.
9.0 PRECAUTIONS
·9.1 During the injection of.auxiliary feed.water following the
reactor trip do not allow the reactor coolant system t~ be cooled
at a rate greater than 100°F
per hour.
10. 0 ·llE'!'llLEn: PROCEDURE
\ "1t'J 10.l Start the visioorder and verif> tlie."cortect
inpuf Of the parameters being monitor-~10.2 1J.t'O 10.3
ryJl610.4 (11%
. J/xJ '"1')i!f 10. 5
Trip the reactor in accordance with SUP 80.l, NSSS Sequence
Document.
Following the plant trip verify tl\e Auxiliary Feedwa~er ""Pumps
start and adjust auxiliary feedwater flow to each steam generator
to 44·0 gpm (220,000
lbm/hr) 0
Maintain the flow until the feedwater ring in each steam
generator i$ covered
narrow range indication).
Stop the visicorder and evaluate the traces to determine the
degre~ of vibration and water hammer recorded at the monitored
locations.
Salem Unit 2 Page 71 of 71 SUP. 80.l
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-..,_..,--:---=-,,- .•-. _,..-.~- --··- ... - . -··- .. ,. ..... _
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Jfij10.• • Adjust Auxiliary Feedwater flow as required to allow
.torin~ generator water levels above the LOW LEVEL alarm
setpoint·wh3' · ... , steam . · .• :ii ting plant cooldown below
547°F.
11.0 TEST COMPL~TION
11.l comments
· ll.2 Senior Shift Supervisor=~ , Test Engineer --~ QA
surveillance ~
ll.3 Chan~es in the SPM required as a result of the test
necessU)' correction initiated._ \'\,l ~
0peratin __ g~E_n_;} neer
Page7lA of 71 Salem Unit 2
.. •. -- . ---
:
have been noted and
oate
··- ... -·· ... ···-
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Rev. No.
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•. PENDIX A
RESEARCH AND TESTING LABORATORY
,uft ~--~
Procedure For Feedwater Hammer Test
No.21: Feedwater Hangers FWH-21~17 and FWH-21-18
·May 15, 1981
•
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H;i!'-iGlr-AL -E~-iGiN!:I::.:? i ~:rr.:::ss 1-.Nt·.t YSlS GROU?
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MECE:·.NlCAL DIV •. • ES.CD ~
NoTE0 ~PJI~ }~-~·--' ~[FER.:'11!0 ~~;r.) ( ) I . ACil_ON ..... :
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RESEARCH AND TESTING LABORATORY ·PSE&G - SALEM
Prcp.:ircd By
Approved Date By
S-IS-~I
Reviewed Da~.e By Date
5//7/tf'/ w. Schell 6/81
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• Procedure for Feedwater Hammer Test No. 2i Feedwater Hangers
FWH-21-17· and FWH-21-18
1.0 Scope
Rev. 0 Page -1 .of 3 5/15/81
1.1 This procedure provides· for displacement measurement of
three axes on two feedwater pipe hangers (No. FWH-21-17 an_d
FWH-21-18) and also the dynamic pressure response at · · drain
valve 21BF-58 during a 50% power trip of Unit 2, Salem Generating
Station.
2.0 Reference
2.1 Nuclear Regulatory Commission letter dated Nov. 7, 1980
(Appendix A)
2.2 Schaevitz Engineering· LVDT.Handbook
2.3 PCB Piezotronics Operating Instruction Manual
2.4. SE6008 U.V. Recorder Instruction Manual ·(Di·rect writing
oscillograph)
3.0 Responsibilities .. 3.1 Mater1als Division Test Engineer has
the responsibility of
performing the field testing, evaluation of the test data, and
the accuracy _of .the test ec;piipment.
3~2 · Materials D~vision Technician is responsible f~r assisting
the Test Engineer in performing the tests.
3.3 \ .
PSE~G Production Departm~pt is responsible for coordinating the
test.
4.0 Procedure
· 4·.1 To dete"rmine the displacement of the hangers, linea_:r;
variable differential transformers (LVDT) were installed on three
axes as shown in Figure 1 for hanger FWH-21-17 and Figure 2 for
FWH-21 ·.18.
4.2 The design_change requ~st (App~ridix B) was used to install
the brackets.
.•
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. < -It. -Rev. 0 Page 2 of 3·
5/15/81
4.0 Procedure (cont'.d)
4.3 Instrumentation cables from the containment passed through
Penetration· 2-56. (ILRT Terminal) Terminal Box JX159. Between
columns B6 & B7 El. 130 containment and relay __ . _ control
area. As.-per drawing 218520A 1440.
LVDT· No.
1
y 2
·z. 3
Fw:H- 21-18 x 4
y 5
z 6
·Pressure Valve 21BF-~8
5.0 Instrumentation·
Terminal Nos.
1 23Tl 1 23Pl 2 23Tl 2 23Pl 3 23Tl 3 23Pl 4 23Tl 4 23Pl 5 23Tl ·
5. 23Pl 6·23Tl 6 23Pl 7 ~3Tl 7 2~Pl
2
3
4
5·
6
7
5.1 Linear Variable Diffe~ential Transformers Scha€vitz
Engineering Model PCA 117-1000 + 1.00.inch, with SMS signal
conditioning module. ~
LVDT's.were.calibrated using calibration stand and dial
micrometer CAL-41S 1-584
5. 2 PCB Pie.zotronics Inc., Quartz Pressure Transducer Model
ll2A/62 Sensitivity 1.0 pC/Psi Rise Time. 2µsec. Pressure range
3000 psi Temperature range +_400F
5.3 PCB Piezotronics Inc. charge amplifier Model 462A.
5. 4 Fluke Model 8375A.Digital Multiin"eter
5.5 SE6008 u.v. Direct Writing Osciilograph
.··
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•, .It ·e · Rev. O
Page 3 of 3 5/15/81
6.0 Test Methods
\
6.1 The displacements of the three axes of both hang~rs and the
dynamic pressure pulsation at drain valve 21BF-58 will be recorded
at a speed of SOOmm/min. on a osc.ill9~ graph while the unit is at
50% power. Upon coordination with the control room the speed of the
oscillograph will be increased to SOOnun/sec. for the trip. After
the trip. is complete and the data is steady the recorder speed
will be returned to SOOmm/min. for after test data •
. 6.2 A report will be issued with the results of the test •
. .
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It. FIGURE 1 ~ ·INSTRUMENTATION BRACKETS
FEEDWATER HANGER FWH-21-i7
\ X-LVDT
-i~T· . ·I I . 11 !
S • H !" --~t---~-·
L. V. D. T. Target ·P;late. L.V.D.To Support Bracket pri.ng
anger __ _....
F~H 21-17 --~ ~
'.) Z-LVDT ----4----~~=l+-'/ ,. I
! 1: :
I • ...
I .
Feedwater Pipe Approx. 14~·o~n.· ·
1·:.
1--------Restraint 21FWR-6
....._---------------~-- - - ---+-----------~ _j_
...
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-
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. - FIGURE 2
INSTRUMENTATION BRACKETS FEEDWATER HANGER FWH-21-18
Y-LVDT I . ; .
Spring Hanger FWH 21-18
~---~ .. ~~ .. -+-~-LVDT Target Plate
I
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ill , .. • 1-:
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.. : •: .. =l·;i!. . l . , :· .. I ;,:i·. I . i . •. ;, ·1 · •
••• • I ., • .:,; I ...... I . . I ·; I f •• r I
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.Feedwater Pipe AJ?.prox. 14" O.D. · ·
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i=--=---=----=-~~----~---·-=--- ---:._·--, -·-.--- ·
j~Restrairit2l. FWR-4 . b~. . . .
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" It. APPENDIX B
CALIBRATION DATA
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' . . PS~~(1st1:tre.l1 (;orp()rtfi«)D RESEARCH AND TESTING
LABORATORY.
TEST DATA SHEET
TEST ORDER NO. --"""'&,'--'t;.,=-=,;2"--=(D;....;g-..._
_____ TEST PROCEDURE IDENT. ----------
DATE OF TEST 7- ..:21 - k / PERFORMED AT )i;;ikm f./nc.f~
_.A/£&./.,..~ Ci--en~l"e;.._-f-, n;i _f 6-v..-f, o,...,
DESCRIPTION OF MATERIAL-------------------ro'-1------·-\.
MATERIAL RECEIVED FROM-------------------------
TEST RESULTS . - -
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PS~ Rcse~1rel1 (;(,rp•,atti•)n RESEARCH AND TESTING
LABORATO~
TEST DATA SHEET '
-~ .
TEST ORDER NO. __ ..u.k:;..ut:...::c2~feL.LX_· ----- TEST
PROCEDURE IDENT. ---------DATE 0 F TESi' 5?-CJO -&1 PERFORMED
AT /'?afer1tA./ b 1 v1 'rd:J n
:::;:ORNE::.~:::::~ ~:s~.e:::::. ~!/::_~~h TEST R'isuL TS 5
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- Cf; I - i,. irJI,,/: . 7 ... , - ~t=,' I -/. () I o.
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TEST EQUIPMENT USED & CALIB. DUE DATE:
~,r,,f~/-.sr:v~r Sr..
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PSEfl Rcsearel1 Corpkl 19
l/o od / In I ·I I -d /")J, ,h
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RESEARCH AND TESTING LABORATORY
ATTACHMENT 2
PRESSURE GAGE CALIBRATION DATA
Performed for M q fe ti~ /r D t .V.IS l~h Location of Test ___
E__,U=--0-.;_ ...... · _____________ T.est No. ___ _
Test Procedure Identification /£U.. D. Test Date 7/20/21
Description of Test Item Pr-e ss (J t' ~ fu 1t s JtA.c-et- Gage No.
___ _ Manufacturer __ .....,,P_C __ B.__ ______ Model /90 I
Accuracy I% P.S.
Standard Pressure J ~
PSI Up
0 . o. 02.. 100 I • 2. o
200 2.. 3 y . .. -
300 3 . '-J '6 '-)00 l.{.~4
soo. 5.
-
. ·- . . . ·,
·-
·. -
RESEARCH AND TESTING LABORATORY
ATTACHMENT 2
PRESSURE GAGE CALIBRATION DATA
Performed for Ma f-e ,,.,~ /r D /II; s tO Yl · Location of Test
__ E. ....... '-"V~ ....... Dc.......;,..• ___________ Test No. ___
_
Test Procedure Identification E. lJ.D .. Test D~te 7/?,o/f'/
Description of Test Item. Pres.Syre Tro11..rc/uc-e1- Gage No. ___
_
Manufacturer PC 8 Model /'?o I Accuracy / %r S
-~.'--~---------~
Standard GAGE READING Pressure
.; PSI -~ ,.
PSI Up Down Average Correction
/000 . 5. s Cf s.
-
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