ML20092K418
| ML20092K418 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 02/19/1992 |
| From: | Devine J GENERAL PUBLIC UTILITIES CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 5000-92-3006, C321-92-2064, GL-89-10, NUDOCS 9202250159 | |
| Download: ML20092K418 (2) | |
Text
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MNuclear GPU Nuclear Corporallon
~ ~ ~
raisney, ten Jeeser 070! 4 201 310-7000 TEllX 130 402 Wthta Dvkt Dini14omt+t february 19, 1992 C321-92 2064 5000- + 3006 U. S. Nuclear Regulatory Commission Atin:
Document Control Desk Washington, DC 20555 Gentlemen:
Subject:
Oyster Creek l{uclear Generating Station (OCNGS)
Operating License No. DPR 16 Docket No. 50 219 Generic letter 89-10, Supplement 3 Reassessment GPU Nuclear letter dated february 15,1992 (C32192 2037) transmitted the results of a detailed reassessment of the OCNGS motor operated valves which are within the scope of NRC Generic Letter 89 10, Supplement 1.
Enclosed is a revised Tabic 1, " Generic letter 8910, Supplement 3 Assessment Data", to the above referenced letter.
This revision corrects errors to the Required Thrntt column (upper value) to reflect the required thrust based on the standard industry equation and to the 13R As Lff t Thryit column to refRct the actual as-left thrusts. These revisions allow direct comparison of the 13R As-Lef1Thrutt values to the target thrust values which include MOVATS inaccuracies above pre-load / running load for MOVATS testing in the 8tgujIc(1_ Thrust column (lower value),
very truly yours,
/T M J -
. ti;ts
___._1 J. C, DeVine, Jr.
Director and Vice President Technical functions JCD/DJD/amk Attachments cc:
Administrator, Region 1 NRC Resident inspector Oyster Creek NRC Project Manager 9202250159 920219 l
PDR ADOCK 05000219 2 '10 0 9 <. P GPU Nu ex corpc
's.i subow, d om O Pume in des cor m s ",
1
C321-92-2064 5GrnM 2-3004 TA8tE I - Revisian GENERICJ ETT(R 89-j0 SUPPLEMENT 3 ASSESSMENT E4TA m
VALVE 2P VALVE REQ'D STL't RUNNik; MOTOR UNCER UV MOTOR AS-15 SPRING STEM 13R AS--
(PSI)
FACTOR THRUST u
TORQUE EFFICIENCY TORQUE VOLTAGE FACTOR TdRQUE TORQUE PACK TORQUE @
LEFT I (Ins)
REQ'O REQ *D (Volts)
AFAIL.
SWITCH TORQUE t!V THRUST (a)
(ft-lbs)
(ft-lbs)
(ft-lbs)
SETTING (ft-lbs)
(ft-lbs)
(Ibs)
(b)
V-14-31
- 1020, 40 33268
.2 935
.5 37.2 118.2
.94 56.4 1.0 874 1575 43,332 l
32737 V-14-33 1020
.40 33268
.2 935
.5 37.2 100.6
.80 48.0 1.75 1213 1340 50,784 32737 V-14-30 1020 40 33268
.2 768
.55 24.5 377.9
.82 25.9 2.5 525 913 37,080 32737 I
1020
.40 33268
.2 768
.55 24.5 380.9
.82 26.9 2.0 413 936 34,039 V-14-32l 32737 j
V-14-34 730 43 24520
.2 689
.5 27.4 119.4
.95 57.0 1.0 874 1591 47,645 23429 V-14-35' 730 40 24520
.2 689
.5 27.4 79.6
.63 37.8 1.0 874 1055 40,142 23429 V-14-36 730
.40 24351
.2 538
.55 20.7 383.1
.83 27.0 2.75 580 759 25,296 23249 V-14-37 730
.40 24351
.2 538
.55 20.7 359.7
.81 26.2 2.75 580 722 29,305 23249 v.16-1 1030
.38 14021 2
265
.5 10.1 382.6
.87 11.3 2.0 300 330 15,963 13360 V-16-14 1030
.38 14021
.2 265
.55 17.1 118.0
.94 23.5
?.25 350 396 14,224 13360 c)
The upper nJaber is the calculated requireJ thrust and is used in the operatcr sizing calculations. The lower number is the calca. lated inrust minus packing load and then adjusted up=ard by the MOVATS inaccuracies ia Table 3 of ER-5.0. The lower number is the tar 9et thrust above pre-Icad/ running load for MOVATS testing.
b) 13R as-left thrust is the thrust above pre-load / running load on the MOVATS trace. This is to be compared to the lower number in the Regelred Thrust column.
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