ML20077M107
| ML20077M107 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 08/07/1991 |
| From: | Cottle W ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-89-10, GNRO-91-00137, GNRO-91-137, NUDOCS 9108130197 | |
| Download: ML20077M107 (8) | |
Text
.
Lntetgy Operautms,Inc.
- =~ ENTERGY
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W. T. Colne August 7, 1991 U.S. Nucicar Reguint ory reemir n. ion Mnil 8tation F1-137 Wnshington, D.C.
20555 Attention:
Document Control Desk Subjnct:
Grntul Golf Nucion: St at ion Unit 1 Docket No. 50-416 1.icensn No. NPF-29 Rerponse to Generic 1.etter 89-10 Supplement 3 Request for Additionni Information GNRO-91/00137 Gentle.en:
Our submit tal of March 8, 4991 (GNRO-91/00048) was ainde in responne to thn 120-day reporting requirements of Generic Letter 89-10 Supplement 3,
"Constdorat ion of the Results of NRC-Sponsored Tests of Motor Operat ed Valvos".
By let t er dated July 2, 1991 (GNR1-91/00129), the NRC requested addit tonal information pertaining to our finrch 8 subrnit tal eind Generic 1,etter 89-10 Supplement 3.
The requested informat inn is attached for your use.
Plenso contact this office should you havn nny questions or desir e additionni informntion.
Yours truly, w rC_ -
WTC/llf.K / n mn attachmnnt: Response t o NRC Request for Additional Information cc:
(See Next. Page)
G,9107301/SNLICFhR - 1 D
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9108130107 910807 PDR ADOCK 05000416 P
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August 7, 1991 GNRO-91/00137 Page 2 of 3 cc:
Mr. D. C. Iljntz (w/n)
Mr. J. L. Mathin (w/n)
Mr. R. B. McGehee (w/n)
Mr. N. S. Reynolds (w/n)
Mr.11. L. Thoman (w/o)
Mr. F. W. Titus (w/n)
Mr. Stewntt D. Pbnet er (w/n)
Regionni Administrator U.S. Nucient Reguintory Commission Region 11 101 Harletta St., N.W., Suite 2900 At innt n, Georgin 30323 Mr. I.
l.. Kint ner, Project Mnnaget (w/n)
Office of Nucient Renctor Regulation U.S. Ancionr Regulatory Commission Ma, Stop 11D21 Wrshington. D.C.
20555 G9107301/SNI.1CPLR - 2
DEFORE Tile UNITED STATES NUCl. EAR Kr.GULATORY COMMISSION l.1 CENSE NO. NPT-29 DOCKET NO. 50-416 IN Tile HATTER OF MISSISSIPPI POWER & L1 Gilt COMPANY nnd SYSTEM ENERGY RESOURCES, INC.
nnd SOUTil MISSISSIPP1 El.ECTRIC POWER ASSOCI ATION nnd ENTERGY OPERATIONS, INC.
AEDMAURS 1, W. T. Cott.lo, being duly r, worn, stato that 1 am Vice President, Operntions GGNS of Entergy Operations, Inc.; t hat on behnif of Entergy Operations, Inc., System Energy Resources, Inc.. and South Mississippi Electric Power Association 1 nm authorized by Entergy Operations, Inc. to sign and filo with thn Nucinar Reguintory Commission, this Response to Generic Lotter 80-10, Supplement 3; that I signed this letter as Vice President, Oporntions GGNS of Ent ergy Operat ions, Inc.; and thnt the statements made and the matters set forth therein are trun niul correct to the best of my knowledge, information and helle (.
_?^c) I 4 xtr W. T. Cottin STATE OP MISSISSIPP1 COUNTY OF Cl,A1 BORNE SUBSCRIBED AND SWORN To beforo me, a Notary Public, in and for the County and Stnte abovo named, this __3 dry of Os t i n h t-\\
1991.
(SEAL)
Cd3 b
- b e u Notary Pub ic Hy commission expires:
Aty OcemMan ts rts My 1,1931 a
G9107301/SNLICFER - 4
RESPONSE _70_NRC_ REQUEST FOR_ ADDITIONAL INFORMATION
[G ENE R I C_ LETTE FL89 - 10__SU PP LEM ENT_3 ) -
NRC REQUES_T - 1 TEM _1:
Identify any modificat ions (e.g., torque switch sott.ing adjustment s, gnaring changas, or motor /nctuntor ropincoment) for each HOV within the scopo of Supplement 3 to GI,P9-10 sinco Junn 1990 or pinnnnd for tbn futurn.
R.esponse The only such modif f cat.f ons nrn t hn adjustment of torqun switch settings.
Valves on which adjustments worn made in RF04 and for which adjumtments arn pinnnnd in RF05 nrn listed as follows:
RF04 RF05 (Oct - Nov 1990)
(Apr - May 1992)*
System:
Valvn:
RCIC E51F063 Y
Y RCIC E51F064 Y
RWCU G33T001 Y
RWCU G33F004 Y
RWCU G33F250 Y
kWCU G33F251 Y
- As currently schndulnd.
NRC REQUE_ST - ITEH_2:
Provide thn actuntor and motor type /sizn, differentini pressurn, and information necessary to confirm motor adequacy for nach MOV within thn scope of Supplement. 3.
Response
DESIGN DATA ON GL 89-10 SUPPLEMENT 3 VAINES:
E51F0_63 ACTUATOR MODEL = SD-1-40 MOTOR START TORQUE = 40.00 FT-LHS
.HOTOR RATED VOLTAGE = 460 VOLTS AC MOTOR DESIGN REDUCED VOLTAGE = 394 VOLTS AC PERCENTAGE -OF RATED VOLTAGE = 867, HOTOR SPEED'= 3600 RPM OVERALL ACTUATOR GEAR RATIO = 56.64 SPRING' PACK NUMBER = 60-600-0007-1 SPRING PACK TORQUE RATING = 850 FT-l.BS ACTUATOR TORQUE RATING = 850 FT-LBS l
ACTUATOR PULLOUT EFFICIENCY = 0.40 ACTUATOR APPLICATION FACTOR = 0.9 l
G9107301/SNLICFLR - 5
-.. =
__-_______.___..___.________.____.mm._.__
4 E51F0_63 (Continued)
VALVE VENDOR:
POWELL VALVE TYPE:
10.00" GATE MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (OPEN) = 1080 PSID MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (CLOSE) = 1080 PSID MAXIMUM EXPECTED SYSTEM PRESSURE = 1080 PSI VALVE ORIFICE DIAMETER = 8.250" VALVE STEM DIAMETER = 2.125" VALVE STEM PITCil = 1/4" VALVE STEM LEAD = 1/2" STEM PACKING I,0AD = 2509 LBS j
E51F064 ACTUATOR MODEL = SB-1-40 MOTOR START TORQUE = 40.00 FT-LBS i
MOTOR FATED VOLTAGE = 460 VOLTS AC MOTOR DESIGN REDUCED VOLTAGE = 390 VOLTS AC FERCENTAGE OF RATED VOLTAGE = 85%
MOTOR SPEED = 3600_ RPM
-j OVERALL ACTUATOR GEAR RATIO = 56.64 SPRING PACK NUMiiER = 60-600-0007-1 SPRING PACK TORQUE RATING = 850 FT-LBS ACTUATOR TORQUE RATING = 850 FT-LDS ACTUATOR PULLOUT EFFICIENCY = 0.40 ACTUATOR APPLICATION FACTOR = 0.9
'OWELL VALVE VENDOR:
P VALVE TYPE:
10.00" GATE-MAX 1 MUM EXPECTED DIFFERENTIAL PRESSURE (OPEN) = 1080 PSID MAXIMUll EXPECTED DIFFERENTIAL PRESSURE (CLOSE) = 1080 PSID MAXIMUM EXPECTED SYSTEM PRESSURE = 1080 PSI VALVE ORIFICE DIAMETER = 8.250" VALVE STEM DIAMETER = 2.125" VALVE STEM PITCil = 1/4" VAINE STEM LEAD = 1/2" STEM PACKING LOAD = 2500 LDS G337001 ACTUAYOR MODEL a SMD-0-25 MOTOR START TORQUE = 25.00 FT-LBS HOTOR RATED VOLTAGE = 460 VOLTS AC MOTOR DESIGN REDUCED VOLTAGE = 397 VOLTS AC PERCENTAGE OF RATED VOLTAGE = 86%
MOTOR SPEED = 1800 RPM OVERALL ACTUATOR GEAR RATIO =-54.83 SPRING PACK NUMBER = 60-600-0073-1 SPRING PACK TORQUE RATING = 500 FT-LBS AC1UATOR TORQUE RATING = 500 FT-LBS ACTUATOR PULLOUT-EFFICIENCY = 0.40 ACTUATOR APPLICATION FACTOR = 0.9 VAINE VENDOR:
POWELL VAINE TYPE:
6.00" GATE MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (OPEN) = 1129 PSID G9107' 01/SNLICFLR - 6 s
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G33F001 (Continued)
MAX 1 HUM EXPECTED DIFFERENTIAL PRESSURE (CLOSE) = 1129 PSID MAXIMUM EXPECTED SYSTEM PRESSURE = 1129 PSI VALVE ORIFICE DIAMETER = 5.000" VALVE STEM DIAMETER = 1.750" VAINE STEM dTCil =1/5" VALVE STEM LEAD = 2/5" STEM PACKING LOAD = 2500 LBS G1cF004 ACTUATOR MODEL = SMB-0-25 MOTOR START TORQUE = 25.00 FT-LBS MOTOR RATED VOLTAGE = 460 VOLTS AC MOTOR DESIGN REDUCED VOLTAGE = 407 VOLTS AC PERCENTAGE OF RATED VOLTAGE = 88%
MOTOR SPEED = 1800 RPM OVERALL ACTUATOR GEAR RATIO = 54.83 SPRING PACK NUMBER = 60-600-0017-1 SPRING PACK TORQUE RATING = $00 FT LDS ACTUATOR TORQUE RATING = 700 FT-LBS ACTUATOR PULLOUT EFFICIENCY = 0.40 ACTUATOR APPLICATION FACTOR = 0.9 r
VAINE VENDOR:
POWELL VAINE-TYPE:
6.00" GATE MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (OPEN) = 1129 PSID MAXIMUM EXPECTED DIFFERENTIAL PRESSURE-(CL3SE) = 1129 PSID MAX 1 huh EXPECTED SYSTEM PRESSURE = 1129 PSI VAINE ORIFICE DIAMETER = 5.000" VALVE STEM DIAMETER = 1.750" VALVE STEM P1TCil = 1/5" VAINE STEM LEAD = 2/5" STEM PACKING LOAD = 2500 LBS t
G33F250 ACTUATOR MODEL = SMB-0-25 MOTOR START TORQUE = 25.00 FT-LBS MOTOR RATED VOLTAGE = 460 VOLTS AC i
MOTOR DESIGN REDUCED VOLTAGE = 408 VOLTS AC PERCENTAGE OF RATED VOLTAGE = 89%
MOTOR SPEED = 1800 RPM
+
OVERAI.L ACTUATOR GEAR RATIO = 54.83 SPRING PACK NUMBER = 60-600-0073-1 SPRING PACK TORQUE RATING = 500 FT-LBS ACTUATOR TORQUE RATING 500 FT-LBS ACTUATOR PULLOUT EFFICIENCY = 0.40 ACTUATOR APPLICATION FACTOR = 0.9 VAINE VENDOR:
POWELL VALVE-TYPE:
6.00" GATE
-MAXIMUM EXPECTED. DIFFERENTIAL PRESSURE (OPEN) = 1118 PSID MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (CLOSE) = 1118 PSID MAXIMUll EXPECTED SYSTEM PRESSURE = 1118-PSI G9107301/SNLICFLR - 7
...r -. - -.-
C G33F210 (Continued)
VALVE ORIFICE DIAMETER = 5.000" VAINE STEM DIAMETER = 1.750" VALVE STEM PITCll = 1/5" VAINE STEM LEAD = 2/5" STEM PACKING LOAD = 2500 LBS G33F251 ACTUATOR MOLEL = $1f 8-0-25 MOTOR START TORQUE = 25.00 FT-LBS MOTOR RATED /0LTAGE = 460 VOLTS AC MOTOR DESIGN REDUCED VOLTAGE = 415 VOLTS AC PERCENTAGE OF RATED VOLTAGE = 90%
MOTOR SPEED M 1800 RPM OVERALL ACTUATOR GEAR RATIO = 54.83 SPRING PACK NUMDER = 60-600-0073-1 SPRING PACV, TORQUE RATING = 500 FT-LBS ACTUATOR TokQUE RAT 1NG =-500 FT-IDS f
ACTUATOR rVLLOUT EFFICIENCY = 0.40 AC'UATOR APPLICATION FACTOR = 0.9 NINE VENDOR:
POWELL VALVE 17PE:
6.00" GATE MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (OPEN) = 1370 PSID MAXIMUM EXPECTED DIFFERENTIAL PRESSURE (CLOSE) = 1118 PSID MAXIMUM EXPECTED SYSTEM PRESSURE = 1370 PSI VALVE ORIFICE DIAMETER = 5.000" VALVE STEM DIAMETER = 1.750" VAINE STEM PITCil = 1/5" VALVE STEM LEAD = 2/5" STEM PACKING LOAD = 2500 LDS
,Nop :, GGNS has subscribed to the two phase approach suggested by the NRC for implementation of Generic Letter 89-10, where the best approach available is utilized to perform initial torque switch sett.ings with later confirmation of.this work through flow test.ing. Motor adequacy can be checked if reasonatile assumptionn are utilized but'true confirmation necessitates actual flow t..at data.
NRC_ REQUEST - ITEM'3:
Previde the t hrust requirement used to evaluate the RCIC HOVs.
Resp _onse :
A thrust requirement of 29,000 lbs was used to evaluate the RCIC MOVs.
This figure is based upon a single INEL data point which showed a 10"
. William Powell flex wedge gate valve required 29,000 lbs to isolate
- blowdown flow at a differential pressure of 1040 psi.
Thase conditions are virtually identical to those postulated for GGNS where the maximum expected differential pressure is 1080 psid.
. G9107301/SNLICFLR - 8 1
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t NRC_ REQUEST - ITEM 4:
l Ilow havo you addresued the rato of loading phenomenon fu HOV sizing and l.
torque switch settings?
I
_Rosionse :
The Rate of Loading (ROL) Assue has been the subject of considerabic debate within the technical community, and is currently one subject of l
the EPRI utility sponnored GL 89-10 test. program. Upon compintion of ROL aspects of this program a definitivo allow meo for the ROL of fect.
may be possible.
Presently. GGNS does not specifically address the R0h phenomenon in HOV evaluat.fons or in the torque switch sotup methodology.
p If it hocomes evident through differential pressure testing that the l
basic setup mnthodology can be improved, then the HOV program will be revised accordingly.
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