ML19221A204
| ML19221A204 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/13/1979 |
| From: | Zigler G BABCOCK & WILCOX CO. |
| To: | |
| References | |
| NUDOCS 7905210011 | |
| Download: ML19221A204 (19) | |
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TMI-2 N0lSE MONITORING REQUIREMENTS 1.0 Puroose The purpose os tf se requirements is to provide a standard system, data set-up, data monitoring, and data aquisition during the THI-2 shutdown.
$pecific data requirements should be modified only at the request and concurrence of 8&W Lynchburg.
A current copy of these requirements or any modifications to them shall be kept in the monitoring system notebook and changes noted in the systems log.
These requirements include loose parts and accoustical monitoring, plant parameter monitoring, tape recordings, and system monitoring.
2.0 Loose Parts and Accoustical Monitoring 2.1 Se_t-uo The loose parts monitoring system shall be active at all times with the audible alert signal on the "0N" position.
'I All signal gains shall be set at the values necessary te M
maintain a signal output between 200 and 500 My peak-to-peak.
These gain valves shall be posted at the LPH cabinet and are listed in Table !.
Every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, a list of the LPH settings shall be made using Table 7.
The dual channel audio monitor shall be set to continuously monitor, at a lovi comfortable level, one upper reactor vessel (head) accelerometer on Channei #1 and one upper OTSGA accelerometer on Channel #2.
Each of the audio monitor 9
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140 165
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and low pass filters used in the band-pass mode.
During the low-level audio monitoring these filters should be kept sw1
" opened".
I.e., the poss-band set between ~1 Hz and 20 KH:.
The digi tal oscilloscope inputs shall be paralleled to -
~
One audio monitor inputs and be set in the cursor trigger mode, hold next, with the sweep set at 50,u.sec/ point in order to capture and display unusual large amplitude accoustical signals.
The R7313 oscilloscope mounted in the LPM cabinet shall be continuously displaying a lower reactor vessel and a upper l-c, OTSG A signal.
These signals shall be displayed in aTsec/div
~~
sweep and in the " Store Only" mode.
Strip chart recorder #3 shall continuously trace a upper Reactor Vessel head and a upper OTSG'A signal.
2.2 Monitoring An audio scan of the accelerometer channels shall be made
'l once an hour and impact or unusual noises or loss of signal reported to 8cV Lynchburg immediately.
The R7315 oscilloscope in the LPM cabinet should be periodically reviewed and erased and any unusual noises detected investigated by audio monitoring of the Indicated channel.
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9 The digital oscilloscope should be periodically switched to " live" and signal levels, wareforms, and trigger level checked.
In the event c real impact Lcrst is captured by
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the digital oscilloscope, the amplitude and delay time shall be measured and reported immediately to B&W Lynchburo, in the event a single loose part alarm is registered by the digital loose parts locator (DLPL), the audio alert should be reset and an audio scan of all channels made.
In the event there are multiple alarms within I minute, record 5 minutes of
~
Mode 2 recorder
.6-up, audio scan all accelerometer channels uy and report findings immediately to B&V Lynchburg.
File all DLPL print-cuts in system notebook.
All Loose Parts and Accoustical Monitoring activities should be summarized on the system log at the end of the shift and M$j discussed during shift change.
3.0 Plant Pa rameter Moni toring
..j 3.1 S e t - u_o_
's Three six-channel strip chs.-t recorders'.shall be set-up as shown in Tables 2 through 4 Changes in these set-ups must be approved by B&!i Lynchburg.
The strip chart recorders, shall be labeled to shes parameter displayed, zero and span voltages, parameter units per division, patch pannel test point and range setting.
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-4 Ectron amplifiers shall be set-up as shown in Table 5.
The indicated gains shall be adjusted with the concurrence of B&W Lynchburg or as necessary to maintain signal level
$$3 less than I vol t peak-to-peak or greater than 100 MV peak-to-peak.
The current gains and channel ID shall be shown in front pannel tags for each amplifier.
Every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the status at the Ectron Amplifiers will be ' logged via Table 8,
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and every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> the status of the strip chart recorders shall be logged via Table 9.
3.2 Monitorinq Time shali be noted on strip chart recorders at 1/2 hour n.tervals, spikes. step changes, or other apparently unusual Schavior shall i r reported to B&W Lynchburg.
These events shall also be noted in ;ystem notebook.
Plant parame:s displayed on the meters at the patch pannel
\\
shall be observed and recorded in the system log at two hour intervals.
Power Spectral Density measurements depicted in Table 6,$df he r. e at the indicated intervals and transmitted to Lynchburg.
Changes to Taby' 6 must b' approved bY B&W Lynchburg.
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. Summarize significant activities in system log book.
These activi ties and plans of future plant evolutions should be discussed during shift change.
Ml 4.0 _Taoe Recording The tape recorder should always be ready to record data.
The stand-by recorder inputs are described in set-up MODE 2, listed in Tabl e 10.
Tape recorder inputs should only be changed with the appr. sal of B&W Lynchburg.
Extensive use of the voice log should be made with description of activities, time of events, plant status, etc.
Label all tapes and tape boxes with tape number, time date, test program title.
Verify tape recorder calibration and adjust as necessary every two days.
One copy of the tape log sheet should be included into the tape box and another copy kept with the system log.
~
- 1 5.0 system Honitoring Review loose part and accoustical monitoring set-up at start of each shift.
Veri fy signal levels are set as shown on current set-up sheet and check signal levels on oscilloscope. Adjust gain if necessary to obtain background signal between.I and.5 volts peak-to-peak.
Check and verify the condition of previously declared inoperative channels.
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Remove s t r I p cha r t ralls every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> uniess requested by B&V Lynchburg.
Label all channels on removed and remaining chart paper, wi th appropriate units.
Have Meted l&C shop technician replace paper M
when "end of roll" stripe appears.
(At the present chart speed, this should be accomplished within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />).
Calibrate strip chart zero and span voltages every 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and keep record of adjustments.
NOTE:
Check plant status prior to anv strip chart maintenance and DO NOT interrupt records of any significant changes in operating conditions.
Review Ectron amplifier settings at the start of each shif t and verify that they agree with front panel labels and with the current i
set-up.
Keep audio monitor patches tagged for easy identification.
Do not Pi Make any unneeded cable changes to system set-up.
All cable changes must be entered in the system log and verifled by a second operator.
6.0 Data Recordino 6.1 Anticioated Plant Evolutions B&W Lynchburg should be kept updated with the latest expected plant evolutions.
Data acquisition requirements will be coordinated with BLV Lynchburg.
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- 6.2 Unanticipated Plant Evolutions Should the reactor coolant pump trip or other circumstances occur which are Judged unusual, start-tape-recorder andopotate b
on voice log the purpose of record and contact BT,W Lynchburg for further guidance.
s 6.3 Routine Data Recording
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n No routine tape recordings are yk *p'*,d #r y*'ie
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M TABLE I Loose Part Monitor Channel Name Amol I f i e r Rance
- Status, 1
Lower Vessel 1
3 M
2 Lower Vessel 2
.3 3
Upper Vessel 3
.I
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4 Upper Vessel 4
.1
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5 SGA Upper
-5 3
/
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6 SGB Upper 6
.1 V
7 SGA Upper 7
.1
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8 SGB Upper 8
.1 bad 9
SGA Lower J
.1 v
10 SGB Lower 10
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a TABL E 7 STRIP CHART #3 Channel Name Point FSV FSU u/div Rance lhi 1
OlSGA LPH 50-MV/div 2
RV Upper LPM 3
RCP Noise B II)-1V 125325 PSI I PSI /div 20'MV/div 4
RC Press A 24 SV30 125040 PSI 25 PSl/div 100 MV/div 5
RCP Noise A
.5).5V 62.57-625 PSI 10 MV/div 6
Bad
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.1 4
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s TABLE 1 STF t P 22:2 CHART 1
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Channel Name Point FSV FSU u/Div Rance I
RCP A Hoise
.5-
.5V 62.5 PSI-62.5 PSI 25 PSI /div 10 MV/div i
5 2
RC Pressure A 24 50-0V 1200 PSI-0 25 PSI /div 50 MV/div 3
Pressurizer Level 23
+10--10V 400"-0" 8"/div 200 MV/div (uncomp)
O O
Tin A (WR) 31 U--SV 350,200 3 /div 50 MV/div 4
5 PRZ Level 22
+10 --10t 0"--400" 8"/div 200 MV/div (comp) 6 MU Tank Level 96
+10--10V 100"-0" 2"/div 200 MV/div
-L es e
_n ea 64 14JJ l 74
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TABLE 4 5~ntiP
% Chart # 2 Channel Name Point FSV FSU u/div Rance 1
RCP B Noise
+1 )- IV
+25 +- 25 PSI IPSI /div 20 MU/div h
2 Bad 6
5 3
RC Flow A 0 )- 10 V 0 x 10 y, 0 8 x 10 /div 100 MV/di-200 MV/di-4 PRZR LVL 22 I d -- 10 V O "t-400"-
8"/div (Comp) 5 RC Press B 25 10 +- OV 1250 3-0 PSI 25 PSI /div 50 MV/di-6 0FF 25
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W TABLE 5 DA Setuo Channel Name Gains AC/DC Filter (Hz) i RC Press - A 2
AC 100 2
RC Press - B 10 AC 100 5WJ 3
RC Press - A 1
DC IK 4
NOT-USED ----------------
OTSG-B Press 500 AC 10 7
OTSG-A Press 500 AC 10 8
RC Temp-in A 500 AC 10 9
Press LVL (TC) 50 AC 10 10 OTSG-A OP-Level 20 AC 10 11 OTSG-B OP-Level 100 AC 10 12 OTSG-A. Press 200 AC 10 13 OTSC-A Down C. Temp.
100 AC 10
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44 14 Press ZR LVL (UC)
I DC 10 16
-- not used --
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TABLE 6 PSD HEASUREMENTS PSD's hard copied and shipped to 0FR at 0400, 1200, 2000 AMP REF-Sional Descriotion Ch. #
CAIN L EVEL S CAL E AVEG.
SLUS Press OTSGB DA-6 500
-10db 10 db/div 8
3 Press OTSGA DA-7 500
-10 10 8
3 OTSG A Level DA-10 20
-10 10 8
3 OTSG B Level DA-Il 100
-10 10 8
-10 10 8
3 RC Press A DA-1 2
-10 10 8
3 RC Press B DA-2 20
-10 10 8
3 PZR Level DA-5 20
-30 10 8
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CURREllT STATUS DATE TIME Amplifier #
Signal Status Filter Filter Range Sens.
hkh LPM-1 Lower Vessel LPM-2 Lower Vessel LPM-3 Upper Vessel LPM-4 Upper Vessel LPM-5 OTSG-A-U LPM-6 O TS G-B- U L PM-7 OTSG-A-U LPM-8 OTSG-B-U LPM-9 OTSG-A-L LPM-10 OTSG-B-L Yif TABLE #3 L;
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Amplifier #
Signal Filter Coupling Vernier.
Gain Descriotion LP AC/DC In/Out
-;h DA-1 R.C. Press. Loop A 28 DA -2 R.C. Press Loop B 25 DA-3 R.C. Press. Loop A 24 DA-4 g3 L'A-5 Press. Level uc '
23 DA-6 OTSG-B Press.
113 DA-7 OTSG-A Press.
112 DA-8 R. C.
In Temp A 31 2N DA-9
~ Press. Level TL 22 "d
DA-10 OTSG-A of Level 49
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DA-11 OTSG-B of Level 51
-9 DA-12 OT3G-A Press.
58 DA-13 OTSG-A Down L. Temp 53 DA-14 Pr_ss7r LVL (UC)
DA-15 Presszr LVL (TC)
DA-16
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DATE TlHE TABLE #9 STRIP CHART RECORDER #1 CH#
Signal Description Point of Range Range Units Sensitivity W
Orgin (Volts)
(Enn)
Div.
I 2
3 4
5 6
STRIP CHART RECORDER #2 Point of Range Range Units Sensitivity CHN Sional Descriotion Oroin (Volts)
(Eng)
Div.
g 2
3 4
5 6
STRIP CHART RECORDER #3 Point of Range Range Units Sensitivity CHN Sicnal Descriptir.n Urqin (Volts)
(Ena)
Div.
1 2
3 4
5 6
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TA3LE #10 MODE 2 - TABLE' RECORDER SETUP TAPE CH SENSOR GQ{
1 RV Lower LPM-i 2
RV Upper LPM-4 3
OTSG "A" Upper LPM-5 4
OTSG "B" Upper L PM-6 5
OTSG "A" Lower L PM-9 6
OTSG "B" Lower LPM-10 7
RC Press A DA-1 8
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9 RC Press 8 DA-2 10 PZR Level DA-5 11 Temp A Inlet DA-8 g
12 RC Press A - 3C DA-3 j
13 OTSG A Press DA-12 14 OTSG A Level DA-10 n*
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