L-01-220, Rev 0 to Grand Gulf In-Plant Safety Relief Valve Test Final Rept
| ML20137J001 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 08/19/1985 |
| From: | Mcconaghy W, Mcinnes I, Taylor M NUTECH ENGINEERS, INC. |
| To: | |
| Shared Package | |
| ML20137H999 | List:
|
| References | |
| MPL-01-220, MPL-01-220-R00, MPL-1-220, MPL-1-220-R, TAC-59535, NUDOCS 8508300103 | |
| Download: ML20137J001 (179) | |
Text
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MPL-01-220 Revision 0 August 1985 32.801.0346 GRAND GULF IN-PLANT SAFETY RELIEF VALVE TEST FINAL REPORT Prepared for Mississippi Power.& Light Company 9
i Prepared by NUTECH Engineers, Inc.
San Jose, California Prepared by: Approved by:
1nA / -
I. D. ficIrme s , P . E. M. Tay]4r, P.E.
Project Engineer Project Manager Wk ( $.
W. J . McConaghy, P.E. p R. A. Smith Engineering Manager Q. A. Administrator Date 4A r I4_lti6I d '
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REVISION CONTROL SHEET TITLE: Grand Gulf In-Plant Safety REPORT NUMBER: MPL-01-220 Relief Valve Test Final Report A. F.
Deardorff,
P.E., Sucervisino Encineer M NJetAco INITIALS J. R. Bondre. Ph.D conciul enne TT ykh INITIALS 1
R. J. Grossenbacker, Sr. Consultant /' -
"lN}TIALS I. D. McInnes, P.E., Staff Engineer M INITIALS L. D. Suckow. Senior Technician kW1{ne bb6 INITIALS i
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REVISION CONTROL SHEET Grand Gulf In-Plant Safety TITLE: Relief Valve Test Final Report DOCUMENT FILE NUMBER: MPL-01-220 AFFECTED DOC PREPARED ACCURACY CRITERIA REMARxs PAGEIS) REV 8Y / DATE - CHECK BY / DATE CHECK BY / OATE 9 1- 0 lM [W M %ge'u.k I gf; 9 28 10.1- o 10.2 11.1- o 11.2 App. A U o j, q App. B o M f646.S$ 7$4 g/ty'ar N/A PAGE OF CEP 34.1.2 iii REV 1
EXECUTIVE
SUMMARY
A Safety Relief Valve test program was conducted at the Grand Gulf Nuclear Power Station, Unit 1 on April 23 through 25, 1985. The purpose of the Grand Gulf test program was to confirm that the Grand Gulf SRV hydrodynamic ' loads and their ef fect on structures and equipment are: (1) less than design, and (2) consistent with the loads and effects predicted by analytical technique s.
This report describes the testing, test instrumentation, data reduction and presents the results of the Grand Gulf in-plant Safety Relief Valve ( S RV) Test. Major conclusions drawn from the data reduction of the SRV test conducted at Grand Gulf are as follows:
o The measured peak pressures during the single valve first actuation (SVA), consecutive actuation (CVA) and the simultaneous actuation of multiple valves (MVA) are well below the design values for Grand Gulf.
o The pressure time history data compare favorably to the methodology developed by the General Electric Company and reported in GESSAR. This is published as Appendix 6D of the
, Grand Gulf FSAR. The air clearing / water spike, observed in the Kuosheng tests, is less pronounced at Grand Gulf. The CVA time histories are similar to that predicted by GESSAR, including a similar ratio of peak positive to peak negative
. pressure.
o The measured strains in the basemat and the containment liners, the quencher supports and the submerged structures are considerably less than the predicted values.
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o The peak measured accelerations at all locations are well below the design values.
o The enveloped acceleration response spectra for SVA, CVA and MVA are well below the Grand Gulf SRV design spectra. There are some minor exceedences in the high frequency range of the spectra. However, as expected, these have little influence on the structural response.
Based on the above it is concluded that the ef fects of SRV hydrodynamic loads have been adequately covered in the original plant design and there are substantial margins in the SRV discharge loads, and their precicted effects, used for the Grand Gulf design.
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TABLE OF CONTENTS Page EXECUTIVE
SUMMARY
iv LIST OF TABLES viii LIST OF FIGURES ix
- 1. 0' INTRODUCTION 1.1 2.0 TEST OBJECTIVES 2.1 3.0 INSTRUMENTATION SUMitARY 3.1 3.1 Instrumentation 3.1 3.2 Accuracy of Instrumentation 3.3 3.3 Failed or Suspect Sensors 3.7 4.0 TEST SEQUENCE AND EVENTS 4.1 5.0 REAL TIME DATA SENSORS AND ACCEPTANCE CRITERIA 5.1 6.0 DATA REDUCTION 6.1 6.1 Introduction 6.1 6.2 Data Tape Information 6.2 6.3 Standard Processing Approach 6.2 6.4 Strain Gauge Analysis 6.3 6.5 Pressure Transducer Analysis 6.3 6.6 Accelerometer Analysis 6.3 6.7 Channels-Analyzed 6.4 7.0 DISCUSSION OF RESULTS ' 7.1 7.1 Suppression Pool Boundary Pressures 7.1 7.2 SRVDL and Quencher Internal Pressures 7.6 7.3 Strain Data 7.7 7.4 Accelerometer Data 7.9 8.0 ACCELERATION RESPONSE SPECTRA 8.1 9.0 COMPARISON WITH KUOSHENG DATA 9.1 9.1 Suppression Pool Boundary Pressures 9.1 9.2 SRVDL and Quencher Internal Pressures 9.1 9.3 Strain Data 9.2 9.4 Accelerometer Data 9.2 9.5 Summa ry 9.3
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TABLE OF CONTENTS (Concluded)
Page
10.0 CONCLUSION
S 10.1
11.0 REFERENCES
11.1 APPENDIX A Signal Conditioning Equipment and Data Acquisition System A.0 APPENDIX B Instrumentation Description B.O MP L-01-220 vii Revision 0 nutggb
LIST OF TABLES Number Title Page 3.1 Pressure Transducer Locations and Response Ranges 3.8 3.2 Strain Gauge Locations and Response Ranges 3.10 3.3 Location of Accelerometers - Structure 3.13 3.4 Location of Accelerometers - Equipment 3.14 3.5 Location of Accelerometers - Piping 3.15 3.6 Maximum Expected Sensor Environmental Conditions 3.16 3.7 Data Acquisition System Accuracy 3.17 3.8 Pressure Transducer Accuracy 3.18 3.9 Accelerometer Accuracy 3.19 3.10 Strain Gauge Accuracy 3.20 3.11 Failed or Suspect Sensors 3.21 4.1 Test Matrix 4.2 6.1 Data Tape Contents 6.5 7.1 Measured Peak Pressure Data 7.13 7.2 SVA 95-95 Pressures 7.14 7.3 CVA 95-95 Pressures 7.15 7.4 MVA 95-95 Pressures 7.16 7.5 Peak Strain Data 7.17 7.6 Peak Measured Accelerations 7.18 9.1 Comparison of Suppression Pool Boundary Pressures 9.4 MPL-01-220 viii Revision 0 nutggh
LIST OF FIGURES Figure Title Page 3.1 Suppression Pool Pressure Transducer Locations - 3.22 Plan View 3.2 Suppression Pool Pressure Transducers - 3.23 Elevation View 3.3 SRV Discharge Line Pressure Transducers 3.24 3.4 Strain Gauge Locations - Elevation 3.25 3.5 Strain Gaugo Locations - Plan 3.26 3.6 SRV Discharge Line Air Bleed System 3.27 Schematic Diagram 3.7 Accelerometer Locations - Structure 3.28 3.8 Pipe Mounted Accelerometers A38, A39, A40 3.29 3.9 Pipe Mounted Accelerometers A41, A42, A43 3.30 3.10 Pipe Mounted Accelerometers A44, A45, A46 3.31 3.11 Pipe Mounted Accelerometers A47, A48, A49 3.32 3.12 Pipe Mounted Accelerometers A50, A51, A52 3.33 7.1 Typical SVA Pressure Time History 7.20 7.2 Typical SVA Pressure Time History 7.21 7.3 Typical SVA Pressure Time History 7.22 7.4 Typical SVA Pressure Time History 7.23 7.5 Typical SVA Pressure PSD 7.24 7.6 Typical SVA Pressure PSD 7.25 7.7 Typical CVA Pressure Time History 7.26 7.8 Typical CVA Pressure Time History 7.27 7.9 Typical CVA Pressure Time History 7.28 7.10 Typical CVA Pressure Time History 7.29 MPL-01-220 ix Revision 0 nutggb j J
E.
LIST OF FIGURES (Continued)
Figure Title Page 7.11 Typical CVA Pressure PSD 7.30 7.12 Typical CVA Pressure PSD 7.31 7.13 Typical MVA Pressure Time History 7.32 7.14 Typical MVA Pressure Time History 7.33 7.15 Typical MVA Pressure Time History 7.34 7.16 Typical MVA Pressure Time History 7.35 7.17 Typical !!VA Pressure PSD 7.36 7.18 Typical MVA Pressure PSD 7.37 7.19 Typical SVA Strain Time History 7.38 7.20 Typical CVA Strain Time History 7.39 7.21 Typical MVA Strain Time History 7.40 7.22 Typical SVA Acceleration Time History 7.41 7.23 Typical CVA Acceleration Time History 7.42 7.24 Typical MVA Acceleration Time History 7.43 7.25 Acceleration Time History for Polar Crane Girder 7.44 8.1 Envelope Response Spectra Accelerometer Al 8.4 8.2 Envelope Response Spectra Accelerometer A3 8.5 8.3 Envelope Response Spectra Accelerometer A4 8.6 8.4 Envelope Response Spectra Accelerometer A5 8.7 8.5 Envelope Response Spectra Accelerometer A6 8.8 8.6 Envelope Response Spectra Accelerometer A7 8.9 8.7 Envelope Response Spectra Accelerometer A8 8.10 8.8 Envelope Respon'se Spectra Accelerometer A9 8.11 MPL-01-220 x Revision 0 nutggh
LIST OF FIGURES (Continued)
Figure Title Page 8.9 Envelope Response Spectra Accelerometer A10 8.12 8.10 Envelope Response Spectra Accelerometer A13 8.13 8.11 Envelope Response Spectra Accelerometer A14 8.14 8.12 Envelope Response Spectra Accelerometer A15 8.15 8.13 Envelope Response Spectra Accelerometer A16 8.16 8.14 Envelope Response Spectra Accelerometer A17 8.17 8.15 Envelope Response Spectra Accelerometer A18 8.18 8.16 Envelope Response Spectra Accelerometer A19 8.19 8.17 Envelope Response Spectra Accelerometer A20 8.20 8.18 Envelope Response Spectra Accelerometer A21 8.21 8.19 Envelope Response Spectra Accelerometer A22 8.22 8.20 Envelope Response Spectra Accelerometer A25 8.23 8.21 Envelope Response Spectra Accelerometer A26 8.24 8.22 Envelope Response Spectra Accelerometer A27 8.25 8.23 Envelope Response Spectra Accelerometer A28 8.26 9.1 Typical Kuosheng SVA Pressure Time Histories 9.5 9.2 Typical Kuosheng SVA Pressure Time Histories 9.6 9.3 Typical Kuosheng SVA Pressure PSD 9.7 9.4 Typical Kuosheng SVA Pressure PSD 9.8 9.5 Typical Kuosheng CVA Pressure Time History 9.9 9.6 Typical Kuosheng CVA Pressure Time History 9.10 9.7 Typical Kuosheng CVA Pressure PSD 9.11 9.8 Typical Kuosheng CVA Pressure PSD 9.12 MPL-01-220 xi Revision 0 nutagh
LIST OF FIGURES (Concluded)
Figure Title Page 9.9 Typical Kuosheng MVA Pressure Time History 9.13 9.10 Typical Kuosheng MVA Pressure Time History 9.14 9.11 Typical Kuosheng MVA Pressure PSD 9.15 9.12 Typical Kuosheng MVA Pressure PSD 9.16 9.13 Typical Kuosheng Strain Time History 9.17 H9.14 Typical Kuosheng Strain Time History 9.18 9.15 Response Spectra Comparison Grand Gulf to Kuosheng 9.19 Accelerometer A3 9.16 Response Spectra Comparison Grand Gulf to Kuosheng 9.20 Accelerometer A4 9.17 Response Spectra Comparison Grand Gulf to Kuosheng 9.21 Accelerometer A14 9.18 Response Spectra Comparison Grand Gulf to Kuosheng 9.22 Accelerometer A16 9.19 Response Spectra Comparison Grand Gulf to Kuosheng 9.23 Accelerometer A17/A18 9.20 Response Spectra Comparison Grand Gulf to Kuosheng 9.24 Accelerometer A19 9.21 Response Spectra Comparison Grand Gulf to Kuosheng 9.25 Accelerometer A20 9.22 Response Spectra Comparison Grand Gulf to Kuosheng 9.26 Accelerometer A24 9.23 Response Spectra Comparison Grand Gulf to Kuosheng 9.27 Accelerometer A25 9.24 Response Spectra Comparison Grand Gulf to Kuosheng 9.28 Accelerometer A26 l
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1.0 INTRODUCTION
A major portion of the planned Safety / Relief Valve (SRV)
Discharge test for the Grand Gulf Nuclear Station was conducted April 23 through April 25, 1985. This program was formulated to meet Mississippi Power and Light Com-pany's (MP&L's) commitments as outlined in Reference 1 and modified by Reference 2. This test program provided measurements of the suppnession pool hydrodynamic loads, submerged structure strains and acceleration response of the reactor building structures and equipment. In addi-tion, data was collected to permit a f atigue evaluation of safety related equipment when subjected to building response induced by SRV discharge loads.
The test instrumentation and planned test matrix are f ully described in the Test Plan, Reference.3, with the test procedures provided in References 4 and 5.
Data was collected for one shakedown test, three-initial actuations of a single valve (SVA) followed by a consec-utive valve actuation (CVA) of the same valve with an elevated pipe temperature, and one four valve multiple valve actuation (MVA). The test program was suspended at this point because all test valves were leaking and additional testing was not practical until cold pipe discharge lines could be re-established.
This report describes the instrumentation, data acqui-sition system, data reduction methods, a brief descrip-tion of the real time data collected during the test and the acceptance criteria used. A discussion of the results of the measured pressures, strains and accelera-tions is presented in Section 7. Measured Grand Gulf results and a comparison to the reported test results MP L-01-2 20 1.1 Revision 0 nutggh
f f rom the SRV tests performed at -the Kuosheng Nu$ lear Power Station in August, 1981 are presented in Sections 8 and 9.
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r 'l 2.0. TEST OBJECTIVES The primary objective of the SRV in-plant test was to provide sufficient information to confirm the adequacy and conservatism of the analytical models used in the Grand Gulf containment design with respect to loadings from SRV actuations. The test matrix was established to provide measurement of Grand Gulf unique pool pressure time histories, structural loads, and acceleration responses during various SRV actuations. Multiple tests were planned to establish a statistical basis for the 95-95 confidence level used in the original design data base.
A secondary test objective was to show that the SRV imposed loads produce small stresses in the plant equipment and that SRV discharge fatigue ef fects would not limit the life of individual pieces of equipment.
The fatigue ef fects results are included in a separate report.
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3.0 INSTRUMENTATION
SUMMARY
~
r Pressure transducers, strain gauges, and accelerometers were installed to measure suppression pool pressures, internal pipe pressures, induced strains, and structural and equipment response to the SRV hydrodynamic loads.
Tables 3.1 through 3.5 provide identification, location and environmental classifications of the installed ins trume ntation. Environmental conditions corresponding to each classification are defined in Table 3.6.
Instrumentation locations are illustrated in Figures 3.1 through 3.12. Appendix A provides a description of the signal conditioning equipment and data acquisition system (DAS) used to process and record information from the ins talled ins trume nta tion. Appendix B provides details on the operat.ing characteristics of the individual pressure transducers, strain gauges and accelerometers used for the SRV test. The system and instrumentation used to measure and record the data taken during the Grand Gulf SRV test has been qualified by use in similar testing and qualification of the individual pieces that make up the total instrumentation package.
3.1 Ins trume nta tion The suppression pool boundary pressure data was col-lected using twenty six pressure transducers located on the basemat, the drywell, the containment, and the weir wall as shown in Table 3.1 and Figures 3.1 and 3.2.
Four high range and two low range pressure transducers were located in the V-12 safety relief valve discharge line (SRVDL) , and in the quencher hub and arm for quencher V-12 as shown in Table 3.1 and Figures 3.2, MPL-01-220 3.1 ;
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t 3.3, and 3.6. The low range pressure sensors (P25 and P28)- were installed to provide an indication of the V-12 SRVDL reflood behavior.
. Thirty. four strain gauges were installed to collect representative strain data during the matrix tests. As noted in Section 3.3, two strain gauges (SG9 and SG15) suffered irrepairable mechanical damage prior to the tests; therefore, thirty two (32) channels of strain data were collected for each of the seven tests perf o rmed . Strain gauges were located on the V-12 quencher support, the containment base and wall liner adjacent to quenchers V-10 and V-ll, and on submerged piping. The locations of strain gauges are shown in Table 3.2.and Figures 3.4 and 3.5. An additional twenty (20) strain gauges were placed on reactor building equipment to determine the SRV discharge load fatigue-stresses on plant equipment. These strain gauges were recorded on the DAS but the discussion of results for
-these gauges is not part of this report and is covere'd separately.
Fif ty-six channels of accelerometer data were collected for each of the seven tests. As shown in Tables 3.3, 3.4, and Figures 3.7.through 3.12, fourteen accelero-meters were located on the containment vessel,'five sets of biaxial accelerometers mounted on the drywell, two sets on the RPV pedestal, and two biaxial sets in the Auxiliary . Buildi ng . In addition, eight sets of triaxial accelerometers were mounted on the polar crane, hydrogen recombiner and five valve actuators.
All instrumentation was calibrated in accordance with the calibration procedures. Due to the long time inter-val between instrumentation installation and testing all MPL-01-220 3.2 Revision 0 nutagh
pressure sensors and accelerameters were recalibrated prior to testing.
3.2 Accuracy of Instrumentation The total end-to-end accuracy- ( f rom the sensing element to data recorder) of each sensor group in the Grand Gulf In-Plant SRV test was analyzed to determine instrumenta-tion system compatibility with respect to expected test results. As described in Appendix B the following sensor types were used to measure data:
- 1) Bell & Howell pressure transducers
- 2) Teledyne Taber pressure transducer
- 3) Endevco Accelerometers
- 4) Ailtech strain gauges Data from the sensors were recorded on magnetic tape.
Table 3.7 lists the accuracy of the recording system for each sensor. Tables 3.8 through 3.10 summarize the results of the data accuracy analysis. Note that all data were filtered at 200 Hz before being recorded on magnetic tape.
An estimate of sensor accuracy can be determined if the following characteristics are known regarding the data and the data acquisition system:
- 1) Accuracies of the data acquisition system compo-nents, from sensing element to recording of the data, and the appropriate conditions to apply these accuracies.
- 2) Characteristics of the data recorded, such as magnitude and frequency.
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Test conditions which influence the data. These 3) can include noise, vibration, and temperature effects.
In determining the accuracy of the Grand Gulf SRV test data, the maximun or peak values were chosen for each sensor group. The following sections discuss the data obtained for each sensor group.
3.2.1 Pressure Transducers Pressure transducers in the Grand Gulf test were the normal operating temperature Bell & Howell CEC-1000-0207 (0 to 100 psia), the high temperature Bell & Howell CEC-1000-0208 (0 to 1000 psia) and the Teledyne Taber 2215 (0 to 50 psia). The CEC-1000-0207 transducers were used to measure suppression pool pressure, while the CEC-1000-0208 transducers were used to measure discharge line and internal quencher pressures. The ielodyne Taber transducer was installed to provide an ir.dication of the SRVDL reflood height.
As shown in Table 3.8, the total accuracies for the pressure data are influenced by three components in the data gathering system:
- 1) Bell & Howell or Teledyne Taber pressure transducer
- 2) Vishay signal conditioner
- 3) QSI data acquisition system The Bell & Howell pressure transducers have a maximum error of i0.20% of full range output (FRO) for the 0 to 100 psia transducers, and 10.22% for the 0 to 1000 psia transducers. The Teledyne Taber pressure transducer han MP L-01-2 20 3.4 Revision 0 nutgrb
a maximum error of 10.5%. These errors are primarily affected-by non-linearity, hysteresis, non-repeatability
, and thermal ef fects.
The Vishay 2100 signal conditioner has a maximum error of 12% on amp gain and 11% on calibration, yielding a total error of i2.2%.
The Quad Systems, Inc. Model 721 data recording system has an accuracy of il/2 least significant bit (LSB). In a 12-bit, i5 volt full scale system, this implies an accuracy of *0.00122 volts.
As shown in Table 3.8 the overall accuracies of the pressure transducers is i4% of the peak measured pressure.
l 3.2.2 Accelerometers Accelerometers for the Grand Gulf SRV test were either Endevco 7703-100, 7704-100, 7705-200 or 7708-200 isoshear piezoelectric devices. The 7703 and 7704 accelerometers (0-500 g's) were outside containment sensors while the 7705 and 7708s accelerometers (0 to 150 g's) were located inside the containment and drywell.
l As shown in Table 3.9, the total error for the accel-l ~erometer data are affected by three components in the data gathering system:
l 1) Endevco accelerometer MP L-01-220 3.5 Revision 0
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- 2) Endevco charge amplifier or remote charge converter signal conditioner
- 3) QSI data acquisition system The maximum error of the Endevco accelerometers is *5.8%
based on linear deviation of iS% from 1 Hz to 4 KHz and a transverse sensitivity of *3%.
The Endevco 2721 AMI charge amplifiers have a frequency response of *5% and gain accuracy of *2%. This implies an overall accuracy of i7.0%. The Endevco line driver signal conditioner / power rack 4479.lM3/4902 and 2652 Mll remote charge converter maintain a maximum system error of *3% of full scale. ,
As stated previously, the OSI-721 data, acquisition system is accurate to *0.00122 v.
As shown in Table 3.9 the overall accuracy of the accelerometers range from *6.5 to *10.6% of the peak measured accelerations.
3.2.3 Strain Gauges Ailtech Model MG125 weldable gauges were used to gather data on pool structures and piping. These gauges have rated strain levels of *20,000 uin/in.
The Ailtech gauge factor maximum error is i3%. The accuracy of the Vishay 2100 has been previously discussed in Section 3.2.1.
As shown by Table 3.10 the overall strain gauge accuracy is *4% of the peak measured strain.
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3.2.4 Summa ry Many of the readings taken during the SRV tests were of small magnitude compared to the capabilities of the measuring devices. The above discussion demonstrates that despite these small magnitudes the instrumentation has the capability to provide measurements of the data which are within ilot. This is well within acceptable limits of accuracy.
3.3 Failed or Suspect Sensors Failure or erratic performance of some instrumentation is inherent when conducting in-plant tests. Upon reviewing the reduced data, sensors which failed or behaved erratically were identified. Table 3.11 lists these sensors and includes remarks on the ef fect of their failure with respect to the overall objectives of the test program. Results from all sensors listed in Table 3.11 are ignored in this test report for the matrix test, or tests, in which they failed or were suspect. The failure of strain gauges SG9 and SG15 was known prior to the tests and channels were not recorded on the data acquisition system. This reduced the total number of data channels recorded from 142 to 140.
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- o 2 e *o Table 3.1
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- H PRESSURE TRANSDUCER LOCATIONS AND RESPONSE RANGES O 8 3 kJ bJ oo SENSOR SENSOtt thCATION EXPECTED FMtMUENCY ENVIRON-TYPE ID A31ftuTH El.EVATION MAIJ1US HESPONSU RANGC NENT NOTES Pressure P1 32' 9s'-0 1/4* 41'-6* 10-35 psia 0-200 Hz El '
Pressure P2 29.5* 93'-0 1/4" 54'-10* 10-35 psia 0-200 sta El Pressure P3 32* 9J'-6" 62'-0* 10-35 psia 0-200 Itz El Pressure P4 16* 107'-0* 41*-6* 10-35 psia 0-200 Itz El Pressure PS 16* 102*-4* 41'-6* 10-35 psia 0-200 itz El Pressure 64 16' 93'-d 1/4" 41'-6* 10-35 psia 0-200 tiz El
> Suppression Pool Pressure P7 16* 93'-0 1/4" 51'-3 3/8" 10-35 psia 0-200 tiz El sensors Pressure P8 24* 93'-0 1/4" 48*-0* 10-35 psia 0-200 IIz El ta
- Pressure P9 16* 93'-6" 62'-0* 10-15 psia 0-200 tiz El co Pressure P10 15.5* 98'-0 1/4" 62*-0* 10-35 psia 0-200 Itz El Pressure P11 15.5* 107'-0* 62'-0* 10-35 psia 0-200 Itz El Pressure P12 8' 93'-0 1/4" 44'-2 3/8" 10-35 psia 0-200 Itz El Pressure P13 0* 98'-0 1/4* 41*-6* 10-35 psia 0-200 Itz El Pressure P14 J58* 93'-0 1/4" 51'-4 3/8" 10-35 psia 0-200 Its El Pressure F15 0' 93'-0 1/4" 62'-0* 10-35 psia 0-200 Itz El Pressure Pt6 344* 9d'-0 1/4* 41'-6" 10-35 psia 0-200 tiz E! .
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PRESSURE TRANSDUCER LOCATIONS AND RESPONSE RANGES OO SENSOR SENSOR IM ATION EXPECTED FREOtJENCY ENVIRON-TYPE ID A!! MLITH EIEVATIOBS DADItis RESPONSE RANGE MENT NOTES Pressure Pl7 344* 93*-0 1/4" 51*-6* 10-35 psia 0-200 Hz El )
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Pressure Pte 255' 93'-0 1/4" 51*-6* 10-35 psia 0-200 Hz El ) Suppression Pool
) Sensors Pressure P19 309' 93'-0 1/4* 51*-6* 10-35 psia 0-200 Hz El )
Pressure P20 195* 93'-0 1/4" 51'-6* 10-15 psia 0-200 Hz El )
Pressure P21 ------ See Figure 3 . 3 - - ---- 0-400 psia 0-200 Hz E5 - Downstream of SRv Pressure P22 -------See Figure 3 . 3 --- -- - 0-400 psia 0-200 Hz Es - nownstrea= of Say Pressure P23 ---=
See Figure 3.3 - - 0-700 psia 0-200 Hz E4 - Inside Ouencher Hub ta
. Pressure P24 -------See Figure 3 . 3 --- - - 700 psia 0-200 Hz E4 - Inside Ouencher Arm o
Pressure P25 -------See Figure 3 . 3 - - -- 0-25 psia 0-200 Hz ES - Low Range Pressure Sensor ,
- Downstream of SRV Pressure P26 12* 104*-4* 34'-0* 10-35 psia 0-200 Hz El Weir Wall Pressure P27 12* 100*-2* 34*-0* 10-35 psia 0-200 Hz El Weir Wall Pressure P29 -------See Figure 3 . 6 ----- 0-35 psia 0-200 Hz E2 I4ne Range Prussure Sensor
- V-12 Air Bleed System Pressuer P29 200* 94'-5 5/l* 43'-6" 10-35 psia 0-200 Hz El Suppression Pool Sensors Pressure P30 456 94'-5 5/l* 43'-6* 10-15 psia 0-200 na El Pressure P31 189*50' 94*-5 5/l* 43'-6* 10-35 psia 0-200 Hz El Pressure P32 120*l0' 94'-5 5/l* 43'-6* 10-15 psia 0-200 Hz El 1
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OEu Table 3.2 oo STRAIN GAUGE LOCATIONS AND RESPONSE RA!!GES EXPECTED St3tSom SEstSom tM ATIOes RESPONSE FREQUENCY ENVIROH-TYPE ID A2IsquTM Et.EVATIuse RADIUS in/in RA88CE ptENT ItOTES Strain Cage SGI 0* 93'-0 1/4* 53'-3* 0.0001-0.001 0-200 Hz El Short Plate Axis I Strain cage SC2 0* 93'-0 1/4* 53'-3* 0.0001-0.001 0-200 Hz El Long Plate Asis Strain Cage SC3 0* 93'-0 1/4* 60'-3* 0.0001-0.001 0-200 Hz El Short Plate Axis Strain Cage SG4 0* 93'-0 1/4* 60*-3* 0.0001-0.001 0-200 Hz El I.ong Plate Asia strain Cage SCS --
See Figure 3.4 - - 0.0001-0.001 0-200 Hz El Astal, ouencher ease Strain Cage SC6 ---See Figure 3 . 4 ----- 0.0001-0.001 0-200 Hz El Antal, cuencher nase p, Strain Cage SC7 ------See F i gu re 3 . 4 ----- 0.0001-0.001 0-200 Hz El Antal, ouencher nase o
Strain Cage SGS ------See F igur e . 3. 4 ------ 0.0001-0.001 0-200 Hz El aosette, cuencher nase Strain Cage SGS ---
See Figure 3.4 - - 0.0001-0.001 0-200 Hz El nosette, ouencher nase Strain Cage SCIO -------See Figure 3 . 4 ------ 0.0001-0.001 0-200 Hz El nosette, cuencher nase Strain Cage SGil 8* 93'-0 1/4* 53*-0* 0.0001-0.001 0-200 sta El Short Plate Amis Strain Cage SCl2 s' 93'-0 1/4" 51'-0* 0.0001-0.001 0-200 Hz El Long Plate Amis Strain Cage SCl3 0.5* 98'-0 1/4* 62'-0* 0.0001-0.001 0-200 Hz El Vertical Strain Gage SCl4 0.5* 90*-0 t/4* 62'-0* 0.0001-0.001 0-200 Hz El Horizontal Strain Cage SCIS --See Figures 3.4 and 3.5 -- 0.0001-0.001 0-200 Hz El Asial, acic turbine enhaust Strain Cage SGl6 --See Figures 3.4 and 3.5 - 0.0001-0.001 0-200 t'z El Asial, actc turhine exhaust
s2
( ) 'If
< ta ra ao U
- s u Table 3.2 (Continued) oo N STRAIN GAUGE IDCATIONS AND RESPONSE RANGES ExFEcTED unune Senscna tJacATirus aEspostSE FaEQthletCY ENWinost-TYrf. ID la/in SAacGE STENT 800FES 41tsstrnt l E12VAYIost [ RADtus Strata Cage SC17 -See Figures 3.4 *ad 3.5- e.coet-e.eet e-2ee Na Et Asian, etCtc turbine enhaust Strata Gage SGle -See Figures 3.4 and 3.5- e.ooel-e.eet e-20e mz et Au141, acic turbine enhaust Strain Cage SC19 -See Figures 3.4 aad 3.5- e.ooel-e.eet e-2ee mz et Axiat, asem A pump test Strale Cage SC2e -See Figures 3.4 and 3.5- e.eest-e.eet e-2ee Mz Et Asiat, asNt A pump test Strain Cage SC21 -See Figures 3 . 4 4,ws 3 . 5 - e.ooet-e.oet e-2ee mz El Asiat, mien A pump test Strata Cage SC22 -See Figures 3.4 mnd 3.5-- e.eest-o.eet e-2ee mz Et soutte, ANN A pues* a st 8d Strain Cage SC23 -See Figures 3.4 and 3.5-
, e.ooet-e.eet e-2ee Na Et posette, aHa A puy test i
l h Strala Cage SC24 -See Figures 3.4 and 3.5 - e.eest-e.eet e-2ee mz Et no ette, leNN A gmaap test l Strain Cage SG25 0.5* 199'-t 1/2" 62'-e* e.0001-e.001 e-20e Hz El Norizontal
! Strain Cage SG26 e.5* 1e9*-1 1/2* 62'-e* e.0001-e.001 e-2ee Na Et Vertical Strain Cage SC27 S.5* 9e'-e 1/4* 62*-O* e.eGet-e. Set e-20e Na Et Morizontal Strain Cage SC2e 0.5* 98*-e 1/4" 62*-e* e.eest-e.eet e-2ee esa El Vertical i Strain Cage SC29 - Gee Figure 3.5 e.eeet-o.eet e-2ee mz Et .aosette, cuencher mase
\
Strain Gage SCle -See Figure 3.5 --- e. cool-e.oet e-2eo mz Et nosette, cue.wher u.ase Strain Cage SC31 -
~ See Figure 3.5 e.ceot-o.eet e-2ee mz Et nosette, cuencher mas.
w :r em
<r ra ao l >*= H oa -
- s u u
oo l
l Table 3.2 (concluded) l l STRAIN GAUGE LOCATIONS AND RESPONSE RANGES l
Strale Cage SC32 - See Flapare 3 . 5 ----- e.eest-e.een e-2ee mz - Et Antal, ou ncewr a.ee l Strata Gage SG33 --See Fiepare 3.5 --
e.eeen-e. set e-2ee mz El Asial, Om acher mes.
Strain Cage -SG34 --
-See rispere 3.5 - - e.eeen-a.eet e-2ee mz El Antal, om cewr m.se sa e
u
Tcblo 3.3 LOCATION OF ACCELEROMETERS - STRUCTURE Sensor Location Environ- Direc III I . D. Azimuth Elev. Radius ment tion Reactor Buildino Sensors:
Al 32' 93.0' 65'0" E2 R A2 32' 93.0' 65'0" E2 V A3 32' 109.12' 65'0" E2 R A4 32' 109.12' 65'0" E2 V AS 302* 109.12' 65'0" E2 R A6 302' 109.12' 65'0" E2 T A7 0* 147.58' 62'0" E2 R A8 0* 147.58' 62'0" E2 V A9 270' 147.58' 62'0" E2 R A10 270* 147.58' 62'0" E2 T All 32* 237.0' 62'0" E2 R A12 32* 237.0' 62'0" E2 V A13 32* 302.25' 0'0" E2 V A14 32' 302.25' 0'0" E2 R A15 32* 120.83' 41'6" E2 R A16 32' 120.83' 41'6" E2 V A17 302' 120.83' 41'6" E2 R A18 302' 120.83' 41'6" E2 T A19 0' 147.58' 41'6" E2 R A20 0* 147.58' 41'6" E2 V '
A21 302' 184.5' 41'0" E2 R A22 302' 184.5' 41'0" E2 T A23 32* 208.83' 41'6" E2 R A24 32* 208.83' 41'6" E2 V .
A25 0' 100.75' 10'7" E2 R A26 0* 100.75' 10'7" E7 V A27 270* 100.75' 10'7" E2 R A28 270' 100.75' 10'7" E2 T Auxiliary Buildino Sensors:
A53 32' 93.0' 68'0" E2 R AS4 32' 93.0' 68'0" E2 V 32* 184.5' 66'0" E2 V A55 A56 32' 184.5' 66'0" E2 R NOTES: (1) R = Horizontal, radial V = Vertical T = Horizontal, tangential MPL-01-220 3'13 Revision 0
Table 3.4 LOCATION OF ACCELEROMETERS - EQUIPMENT Sensor Equipment Loca tion Direction Comments ID Description Azimuth Elevation A29 Polar R (0*-180') Crane to be A30 Crane O' 237'0" V parked on A31 Girder T (90-270') ti-S ( 12 20-30 20) azimuth during tests A32 Base of R A33 Hydrogen 130' 208'10" V A34 Recombiner T A35 Top of R A36 Hydrogen 130' 208'10" V A37 Recombiner T Notes Environmental conditions are all E2.
MPL-01-220 Revision 0 3.14 nutagh
Table 3.5 7$ LOCATION OF ACCELEROMETERS - PIPING o'r "M
SENSOR BEC9TEL ELEVATION DIRECTION DATA PIPE EQUIPMENT ID DRAWING (1) POINT CLASS DESCRIPTION NO./Rev. NO.
A38 X Valve Operator A39 HL-1348E 101'-9" Y 140 18"-GBB-17 #01E12G014-A40 2 F003B-B A41 X Snubber (X)
A42 H-1328J/D 149'3-1/2" Y 30 12"-DBA-17 801B21G026R03 A43 2 w
e A44 X Valve Operator A45 HL-1348A 126'9-3/4" Y 135 20"-DBA-64 801E12G012 A46 2 -F009-B A47 X Valve Operator A48 HL-1348F 167'l-1/2" Y 751 12"-GBB-115 401E12G015 A49 2 -F037A-A A50 X Valve Oper.
A51 HL-1348F 170'9-1/2" Y 216 18"-GBB-118 #01E12G015 A52 2 -F028B-B Notes: 1. X = horizontal, azimuth 90*
Y = vertical up h 2.
2 = horizontal, azimuth 180*
Environmental conditions are E2 for all sensors, with the exception that the maximum temperature is 450*F.
l Table 3.6 MAXIMUM EXPECTED SENSOR ENVIRONMENTAL CONDITIONS (1) 'El - Conditions in Suppression Pool Fluid.................................... Water Pressure................................. 50 psia Temperature.............................. 50*F-200*F (2) E2 - Conditions in Drywell/ Containment Fluid.................................... Air Pressure................................. 42.2 psia Re la tiv e Hum id i ty . . . . . . . . . . . . . . . . . . . . . . . . 100% 1 Temperature.............................. 135'F i (3) E3 - Conditions in SRV Discharge Line and Quencher Assembly Fluid.................................... Water / Steam / Air Temperature.............................. 400*F Pressure (Quencher Assembly)............. 700 psia Pressure (SRV Line)...................... 400 psia (4) 24 - Combination of El and E3 Sensor will be in the SRV discharge line and the "outside" of the sensor and its cabling will be exposed to conditions in the drywell.
i l
1 i
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j MPL-01-220 Revision 0 3.16 I nutgfsb
Table 3.7 DATA ACQUISITION SYSTEM ACCURACY Data Acquisition System Accuracy *l.22 mV Sensor Calibration Accuracy P1 to P20, P25-to P32 100 mV/ psi 0.012 psi P21 to P24 5 mV/ psi 0.24 psi Al to A6, A38, A39, A53, A54 1000 mV/g 0.00122 g A7, A9, All, A14, A15, A17, A19 8333 mV/g 0.000146 g A21, A23, A25, A27, A32, A35 A8, A10, A12, A13, A16, A18, 25000 mV/g 0.00005 g A20, A22, A24, A26, A28, A33 A34, A36, ASS, A56 A29 4166 mV/g 0.00029 g A30, A31 12500 mV/g 0.00010 g A37 2500 mV/g 0.00049 g A40 3333 mV/g 0.00037 g A41 to A52 833 mV/g 0.00146 g SG1 to SG34 4 mV/ uin/in 0.31 uin/in MPL-01-220 3.17 Revision 0 nutagh
Table 3.8 PRESSURE TRANSDUCER ACCURACY (i)
P1 to P20 Sensor P25 to P32 P21 to P24 Peak Reading (psid) ,
+7.44 282 Transducer Error (psid) 0.20 0.22 Signal Conditioner 0.22 8.46 Error (psid)
Data Recorder 0.012 0.24 Error (psid)
SRSS Total Error (psid) 0.298 8.47 Percent Error 4.00 3.00 MPL-01-220 3.18 Revision 0 nutagh
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MPL-01-220 Revision 0 3.19 nutagh
1 Table 3.10 STRAIN GAUGE ACCURACY (i)
Gauge S1 to S34 Peak Reading ( p in/in) 50 Gauge Error ( p in/in) 1.5-Signal Conditioner Error ( uin/in) 1.5 Data Recorder Error ( uin/in) 0.31 SRSS Total Error ( uin/in) 2.14 Percent Error 4.3 MPL-01-220 3.20 Revision 0 nutagh
Table 3.11 FAILED OR SUSPECT SENSORS Sensor Sensor Affected Remarks Type I.D. Tests P22 All P21 provides backup Pressure P24 All P23 provides similar data Transducers P28 All P25 provides backup I SG7 All See Section 7.3.1 for discussion SG9 All Principal stresses cannot be computed as S9 is 45' leg of
- Strain rosette.
4 Gauges SG15 All SG16, 17 and 18 provide backup.
A2 All Acceleration data measured by l
Accelerometers A2 is inconsistent with all
- other data. See Section 7.4 for details A48 All A47 and A49 show minimal perpendicular accelerations, consistent with other equipment mounted accelerometers.
a NOTE:
1
- 1. Variations of readings due to D.C. offset, wild points and instrument errors are discussed in Section 7.0.
i i
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STRAIN GAUGE LOCATIONS - PLAN i
MPL-01-220 Revision 0 3.26 nutggh
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MPL-01-220 Revision 0 3.28 nutggh
I g RHR HEAT EXCWANGER + ,8 9'o Boot 5 i
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Figure 3.8 l PIPE MOUNTED ACCELEROMETERS A38, A39, A40 f
MPL-01-220 3.29 Revision 0 nutggb r
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U A41. A414 A45 EL. 149'- 5'/f
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I l TO Q Figure 3.9 PIPE MOUNTED ACCELEROMETERS A41, A42, A43 l
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o Figure 3.10 PIPE MOUNTED ACCELEROMETERS A44, A45, A46 MPL-01-220 Revision 0 3.31 g
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i Figure 3.11 PIPE MOUNTED ACCELEROMETERS A47, A48, A49 i
MPL-01-220 Revision 0 3.32
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Figure 3.12 PIPE MOUNTED ACCELEROMETERS A50, A51, A52 MPL-01-220 Revision 0 3.33 nutech
4.0 TEST SEQUENCE AND EVENTS .
The test program consists of one shakedown test, three SVA/CVA tests and one MVA test as shown Dy Table 4.1.
Single actuation tests were conducted on the main test valve (V-12) as well as both backup valves (V-10 and V-ll) with the MVA test performed on the 4 planned valves (V-2, V-7, V-12 and V-17). As noted in Table 4.1, valve V-12 was leaking prior to the MVA test, so data collected by the V-12 line and adjacent pressure sensors can be considered as indicative of typical results for a leaking valve.
The data collected, on the DAS, for the shakedown test (SDl) was lost due to a malf unction in the tape ,
recorder. However, the real time oscillograph data recorded demonstrated that the instrumentation was functioning correctly and the signal conditioning was set at the correct gain settings. Therefore, it was concluded that the test had served its function and testing could proceed to MT10/MTil.
On completion of test MT70 all principal test valves demonstrated some degree'of leakage, and the program was suspended. Following a detailed review of the data, it was determined that the SRV hydrodynamic loads were bounded by expected pressures, and the measured strains, and building and equipment responses were small compared to expected values. Results of the initial data reduc-tion were submitted to the NRC, References 11, 12, and 4 13, for their review and concurrence in terminating the tests. The NRC has responded, Reference 14, that, subject to review of the final test report suf ficient test data has been collected to satisfy Grand Gulf FSAR and licensing commitments and no further testing is required.
MPL-01-220 4.1 Revision 0 nutagh
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V'= H O 8 D bJ to c) c) Table 4.1 TEST MATRIX Test Test Valve Initial Conditions Discharge Valve Closure Reactor No. Type Actuated (g) SRVDL Pool Power Time (Sec.) Time Prior to Press.
Water Level Temp. (*F) Level (%) DVA (Sec.) (psig)
SDI SVA V-12 NWL 74 70.9 5 N/A 982.0 MTIO SVA V-10 NWL 74 60.4 20 N/A 976.0 MTil CVA V-10 AWL -
5 45 MT20 SVA V-Il NWL 74 68.0 20 N/A 983.6 MT21 CVA V-Il AWL 5 45 MT30 SVA V-Il NWL 75 69.2 20 N/A 984.0
- MT31 CVA V-Il AWL 5 45 ha MT70 MVA V-2,V-7, NWLI2I 85.5 72.1 15,25,45,35 N/A 1001.7 V-12,V-17 SD = Shakedown Test SVA = Single Valve First Actuation NT = Matrix Test CVA = Single Valve Consecutive Actuation NWL = Normal Water Level, i.e. water surface within SRVDL is coincident with suppression pool AWL = Actual Water Level, i.e. water level dependent on SRVDL internal pressure (1) Control room switch designations V-2 = F041B, V-7 = F047D, V-10 = F051D, V-Il = F047A, V-12 = F041E, V-17 = F047G.
(2) V-12 was leaking during this test and SRVDL had approximately 4 psi internal pressure at test, all other. lines were NWL.
i l
5.0 REAL TIME DATA SENSORS AND ACCEPTANCE CRITERI A During the test program data from 140 sensors were recorded on the DAS. Approximately 25% of the sensors were reviewed in real time by simultaneously recording the signals on oscillograph recorders. Acceptance criteria for all of the real time data channels were developed prior to the test and are presented in References 6 through 8 and summarized in the test procedures References 4 and 5. The Level 1 acceptance criteria were calculated based on plant design values while the Level 2 acceptance criteria are the expected results at test conditions. Exceedance of Level 2 acceptance criteria served as a warning, but did not halt testing. Exceedance of Level l criteria required a delay in testing until investigation of the exceedances ensured that. continuation of testing would not jeopar-dize plant safety.
The real time channels selected for recording repre-sented the locations of maximum expected response. The measured real time data initially showed some peak pressure and accelerometer readings which exceeded the Level 1 acceptance criteria. For each of these cases, the signals were filtered to remove frequencies above 100 Hz and recorded with a fast Fourier transform (FFT) analyzer. Each of these was investigated individually and shown to be acceptable.
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6.0 DATA REDUCTION 6.1 Introduction The measured time-histories for each of the 140 instru-mentation channels, were recorded by the OSI-721 Data Acquisition System (DAS) on magnetic tape for of f-line processing. The data recorded by the DAS was digitally filtered at 200 Hz during recording. As described below, the recorded time histories have been further filtered tc 100 Hz corresponding to the cutof f frequen-cies used in the original Grand Gulf dynamic analyses.
On completion of each test, real time data were compared against the acceptance criteria.
The final data processing and reduction was performed using the software package, REDUC E , Ve rs ion 1. 2. 0.
REDUCE is a compilation of NUTECH proprietary codes developed for this purpose. The data reduction was performed on a CYBER-730 system.
The sof tware package REDUCE processed the raw digitized data for each channel. The major tasks involved in this process included converting the stored digitized sensor voltages from the binary system into decimal equiva-lents, demultiplexing the digitized data, and converting the signal from voltage to engineering units. The next step in the data reduction process was to filter the original time-histories and perform a frequency analysis of each data channel. This portion of the data reduc-tion included removal of D.C. of fset, digital low pass filtering at 100 Hz, performance of the frequency analysis and calculation of the power spectral densities (PSDs). Acceleration response spectra were developed MPL-01-220 6.1 Revision 0 nutggb
for one percent of critical damping for structure mounted accelerometers.
6.2 Data Tape Information A total of two magnetic tapes were used to store the data recorded from the SRV test program. Table 6.1 provides the reel number, file number and the number of records for each test. Each record contains 3952 8-bit bytes of data. This corresponds to 13 time steps per record when sampling 152 data channels, since each sampled data point is represented by two 8-bit words (e.g., 3952 = 2x152x13).
A data acquisition rate of 1000 samples per second was used for each test. There were approximately 15 seconds of pre-test signal prior to the initial valve actuation for each test.
6.3 Standard Processing Approach The following processing and data reduction steps were performed on all sensors.
A. Convert tr.e binary digit stream on the data tape to decimal voltage numbers.
- B. Demultiplex the data foi each channel and convert l
the signal to engineering units by dividing the voltage values by the sensor's calibration facter.
C. Remove unwanted D.C. offset, transducer bias or l thermal drift from the data to obtain only the dynamic portion of the transient.
i
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D.- Low pass filter the data at 100 Hz to remove any unwanted high frequency noise.
6.4 Strain Gauge Analysis The maximum and minimum peak values and the time at which the peak occurs were calculated for each strain gauge. A frequency analysis was performed and the power spectral densities (PSDs) were computed for each strain gauge. Axial and bending stresses were calculated for each group of axially located gauges and used to develop combined stress time-histories.
6.5 Pressure Transducer Analysis The maximum and minimum values of the filtered pressure time-histories were tabulated for each pressure trans-ducer. PSDs were also developed for each pressure transducer.
6.6 Accelerome ter Analysis In addition to tabulation of maximum and minimum values, PSDs and acceleration response spectra were developed for each sensor from the filtered time-histories.
Response spectra were computed at one percent of criti-cal damping. Response spectra envelopes for SVA, CVA l and MVA test data for each structure mounted acceler-ometer we re plotted.
The recorded acceleration time-histories for containment mounted accelerometers exhibited some DC offset for the SVA tests. This appears to be a result of charge ampli-fier saturation, probably caused by a high frequency acoustic type wave induced by the initial air clearing MPL-01-220 6.3 Revision 0 l nutagh
sp'ike. The effect of this saturation is'to induce an offset in the zero datum of the signal which takes approximately one second to recover. As described in
~
Reference 15, Wyle Laboratories has previously investi-gated the effect of this offset and determined that the signal provides an accurate measure of the containment
- response. The data reduction program was able to remove most of the DC of fset, but in some cases, where the offset was large compared to the magnitude of the recorded data, some traces of the offset remain. The effect of this is most pronounced in the low frequency (less than 20 Hz) parts of the acceleration response spectra.
, 6.7 Channels Analyzed The following number of channels were analyzed for the r
SRV Test Program:
h Number J
Strain 32 + 20 (for fatigue evaluation)
Pressure 32 Accelerometers 56 In addition, four channels were monitored to provide valve actuation signals. This yields a total of 144 sampled data channels. In order to maintain a record
$ size of 3952 8-bit bytes and 13 time steps per record, a ;
total of 152 sampled channels were needed. Thus, eight
- _ blank channels were sampled by the data acquisition
- 3. system.
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l Table 6.1
~ DATA TAPE CONTENTS Record No. at Tape Total Which Reel File No. of Test Test No. No. Records Starts Remark s SD-1 - - - -
Malfunction of DAS No data collected MT-10/MT-ll 2 1 8011 1090/6280 Actuation of V-10 MT-20/MT-21 2 1 7382 9170/14160 Actuation of V-11 MT-30/ tit-31 3 1 7972 1200/6230 Actuation of V-ll MT-70 3 3 6077 950 Actuation of V-2, V-7, V-12 and V-17 NOTE:
- 1. MT10/MTil and MT20/MT21 are on a single file. MT20/MT21 is from record 8012 to 15393.
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7.0 DISCUSSION OF RESULTS This section provides a discussion of the pressure, strain, and acceleration results. Each discussion high-lights the major observations derived from the data.
Comparisons of single (both first and consecutive actua-tions) and multiple valve actuations are included.
7.1 Suppression Pool Boundary Pressures As described in Section 3.0, pressure transducers were located on the basemat, the drywell wall and the con-tainment liner. Pressure sensors located within two quencher arm radii (2r o) were used to record peak bubble pressure for each test. ,
7.1.1 Single Valve First Actuations All single valve first actuation tests were conducted with the SRVDL water level coincident with the suppres-sion pool surface. In addition, a minimum time interval of two hours between actuation of the same valve (V-ll for MT20 and MT30) was allowed to ensure the SRVDL had cooled to steady state temp?rature. All tests were con-ducted without any suppression pool circulation. By using different valves for the single valve first actua-tion tests, all three tests were conducted as cold pipe first actuations with the same initial conditions for each test.
Typical measured pressure time histories for single valve first actuation tests are given as Figures 7.1 to 7.4. These time histories show the initial trace with a high frequency, high amplitude, pressure characteristic '
of air bubbles emanating from single columns of holes MPL-01-220 7.1 Revision 0 nutggb
which is coincident with the high pressure spike inside the quencher hub. This is followed by lower frequency air clearing of all rows of holes in the quencher arm, and finally by a characteristic high frequency, low amplitude, steam condensation oscillation pressure trace.
Table 7.1 provides a listing of the maximum / minimum measured pressures for all pool mounted pressure trans-ducers. Review of the recorded first actuation data presented in Table 7.1 shows that the maximum positive and negative pressures of +4.63/-5.78 psid were recorded by P12 during test MT10 on quencher V-10. These are much less than the design pressures of +18.2/-7.7 psid.
A frequency analysis for the suppression pool pressure transducer time histories was performed to produce power spectral density fun.ctions (PSDs). Predominant frequen-cies for the initial clearing phenomenon are 30-40 Hz, with typically only one to two cycles, followed by the classically predicted Rayleigh bubble frequencies of 7-12 Hz. In most traces the Rayleigh bubble portion is followed by high frequency, low amplitude, steam con-densation oscillation. The fundamental frequency of the steam condensation oscillation is in the range of 70-80 Hz. Typical SVA PSDs are provided as Figures 7.5 and 7.6.
7.1.2 Consecutive Valve Actuations Three consecutive valve actuations were performed 45 seconds after closure of the first actuation of the same valve. The SRVDL air bleed system, used prior to first
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actuations to ensure that the water level in the dis-charge line was coincident with the suppression pool surface, was not used prior to any CVA. This ensured that the CVAs were performed with water legs representa-tive of the worst possible case during plant opera-tion. Because all SVA/CVA actuations were performed on SRVDLs which had no in-line pressure transducers it is not possible to define the reflood or actual water level prior to a consecutive actuation.
Typical consecutive valve pressure transient time his-tories are given in Figures 7.7 to 7.10 with typical consecutive valve PSDs provided as Figures 7.11 and 7.12. The typical measured CVA pressure time history has a higher amplitude than the SVAs and a higher frequency content for the major portion of the time history. Also, the initial high frequency air clearing seen during the SVAs is less pronounced for the CVAs.
The time history traces shown in Figures 7.7 and 7.8 are close to the GE predicted classical Rayleigh air bubble with typical frequency contents of 10 to 15 Hz. The peak measured CVA pressures were +7.44/-4.47 psid for P6 during MT31 and +7.47/-3.67 psid for P12 during MTll. ,
These are considerably less than the design values of
+18.2/-7.7 psid.
7.1.3 Multiple Valve Actuation One multiple (four) valve test was conducted using quenchers V-2, V-7, V-12 and V-17. Because of previous testing, the SRV associated with quencher V-12 was leaking, such that prior to valve actuation the SRVDL was pressurized with the water level depressed an unknown amount below the suppression pool normal MPL-01-220 7.3 Revision 0 nutggb
level. Therefore, the four valve test produced three normal cold pipe single valve first actuation re'sults (V-2, V-7 and V-17) and one hot pipe leaking valve actuation (V-12). Actuation of all four valves was achieved by the use of a temporary switch which permitted simultaneous actuation of the valves with independent closing to minimize reactor water level swell and the possibilities of a scram.
Typical recorded pressure time histories are provided as Figures 7.13 to 7.16 with typical PSDs presented as Figures 7.17 and 7.18. The peak pressures measured during MT70 were +4.06/-2.60 psid for P29. These are less than the expected values of +7.7/-4.4 psid and design values of +10.3/-6.4 psid. The peak measured pressures varied from +3.3/-2.10 psid for pressure transducers close to the leaking V-12 to +4.06/-2.60 psid for pressure transducers close to the other valves.
As shown by Figures 7.17 and 7.18 the most noticeable difference between the cold pipe pressure time histories and the leaking valve results is a frequency shift from 7 to 15 Hz. This is similar to the shift seen from the 7-12 Hz for SVA to 10-15 Hz for the CVA and does not represent unexpected behavior or a major frequency shift for the multiple valve case.
7.1.4 Statistical Suppression Pool Pressure Review More information was obtained from the pressure data by performing a statistical analysis of this data. A value, P, was determined with 95% confidence below which 95% of the normal distribution lies. This 95-95% limit corresponds to the confidence limit applied to previous data used in the development of the CLR pool pressure MPL-01-220 7.4 Revision 0 nutggh
methodology, Reference 9. The 95-95% limit is calcu-lated using the following equation:
P = X + St where P = 95-95% limit Y = measured peak pressure sample mean S = saraple standard deviation t = one-sided tolerance factor The tolerance factor is inversely proportional to the number of data points in the sample.
Prior to performing the statistical analysis, data to be included in the s, ample were individually reviewed and compared to ensure similarity.
The calculation was performed for three different cases:
Single valve first actuation (SVA), single valve consec-utive actuation (CVA) and multiple valve actuation (MVA). Only data sensors which are expected to sense full quencher discharge pressure, i.e. sensors located within two quencher arm radii (2r g ), are included in the sample group. The MVA data was also included in the SVA group, because the MVA can be characterized as three simultaneous SVAs (the results for the leaking V-12 were omitted f rom the sample) . As shown in the Test Matrix, Table 4.1, the MVA test was conducted at a suppression pool temperature 10*F higher than the SVA/CVA tests.
The effect of this temperature difference was calcu-lated, using the GESSAR methodology described in Appendix 6D of the Grand Gulf Final Safety Analysis Report, to be less than +0.2 psid. This small differ-MPL-01-220 7.5 Revision 0 nutggb
ence is conservative and within the accuracy of the measured data. For the SVA group, 19 data points were available, corresponding to a t factor of 2.41; for the CVA group, 13 data points were available, and the t factor was 2.68; for the MVA group, 9 data points were available, and the t factor was 2.99.
As shown in Tables 7.2, 7.3 and 7.4 the calculated 95-95 pressures are +4.98/-5.51 psid for the SVA, +8.52/-4.62 psid for the CVA and +5. 5 3/-3.5 5 psid for the MVA. As shown in Table 9.1, the calculated 95-95 pressures for SVA, MVA and CVA are well below the design values for Grand Gulf.
7.2 SRVDL and Quencher Internal Pressures As described in Section 3.0 pressure transducers were located in the SRVDL, and in the quencher hub and arm for quencher V-12.
Quencher V-12 contains all the line and quencher pres-sure i,nstrumentation and was only used for two tests (SD1 and MT70). Therefore, the only data available from these sensors is the unfiltered oscillograph records for SDl, no digitized data available due to failure of DAS tape drive, and leaking valve data from MT70. The peak line pressure observed from the unfiltered SD1 data is a high frequency spike with a magnitude of 450 psi, compared to the 550 psi design. No data is available for the quencher hub pressure for SD1 as P23 was not recorded on oscillograph records. The corresponding peak pressure measured for MT70 is 282 psi in the SRVDL MPL-01-220 7.6 Revision 0 nutggh
r -
l .
and 242 psi in the quencher hub. These are approxi-mately half of the design value of 550 psi.
7.3 Strain Data Strain gauge locations are described in Table 3.2 and Figures 3.4 and 3.5. The measured strain data have been reduced and tabulated in Table 7.5 which provides a listing of peak measured strain for each test along with the expected value for each gauge. Representative strain time-history plots are presented in Figures 7.9 through 7.21.
7.3.1 Quencher Support Strains Strain gauges were mounted on the V-12 quencher support to measure the strains during discharge of V-12 and also induced loads by discharge of an adjacent quencher (V-ll). During the actual tests V-12 was used for two tests. For test SD1 the DAS malfunctioned and no data was collected and MT70 represented a leaking valve condition.
Figure 7.21 provides a typical strain time history for SG6, mounted on the horizontal quencher support, during discharge of V-12. The quencher support strains are small compared to the expected test values. The peak measured strain for the vertical support is 20 )in/in.
The peak measured strain for the cantilever support is 22 )in/in compared to an expected test value of 98 )in/in. For tests involving quenchers V-10 or V-ll no distinct strains related to discharge loads can be defined from the general background noise.
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Strain gauge SG7 measured a well defined strain time history corresponding to the shape of the pressure waves. This is not observed for the other gauges mounted on the quencher support nor any of the other submerged structure strain gauges. Therefore, it is reasonable to ascume that SG7 has become partially detached from the support and is providing incorrect measurements. Therefore, SG7 measured results are not used in this report.
The measured strain dat.a was used to determine the maximum axial and prir.cipal stresses in the quencher support. Because of failure of SG9 principal stresses were only calculated for the vertical portion of the quencher support. The maximum shear stress was 280 psi during blowdown of quencher V-12. The maximum principal stress was 510 psi compared to the predicted value of 1035 psi. The maximum axial stress in the cantilever portion of the support was 645 psi.
7.3.2 Submerged Piping Strains Figure 7.20 provides a strain time history for a pipe mounted strain gauge. This time history is typical, for all tests, for gauges mounted on the RCIC turbine exhaust line (adjacent to V-12) and those mounted on the RHR A pump test line (midway between V-ll and V-12).
Strain gauges mounted on these two lines measured a maximum strain of 12 )in/in compared to an expected value of 56 )in/in. The peak calculated axial stress was 260 psi. In general, regardless of which quencher was discharged, the measured strain is always small when compared to the expected value.
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7.3.3 Containment Liner Strains Figure 7.19 shows a typical strain time history for a base liner gauge. Strain gauges mounted on the contain-ment base liner measured the highest recorded strains during the testing. Gauge: SGil and SG12 located midway between V-10 and V-ll measured a maximum strain of 50 )in/in. This is 5% of the yield strain used for the design of the liner. Gauges mounted on other portions of the base liner and containment vessel wall liner recorded smaller strains.
Based on the recorded strain data collected, the strains induced by SRV discharge loads are very small and are well within the expected values.
7.4 Accelerometer Data A description of accelerometer locations is provided in Section 3 and Tables 3.3, 3.4, and Figures 3.7 through 3.12.
Table 7.6 provides a tabulation of the peak measured acceleration for each accelerometer, for each test. In addition, the table provides average SVA and CVA accelerations, and design and expected values. The structural acceleration design values are taken from the Grand Gulf design response spectra, and are equal to the zero period acceleration (zpa) for the single valve consecutive actuation (SRVone) case. The accelerations for accelerometers mounted on valves and the hydrogen recombiner are taken directly from the appropriate analyses. The expected values are 80% of the design values. This ratio was selected based on the ratio of peak predicted pool pressure from test to design MP L 2 20 7.9 Revision 0 nutggh
I conditions. Figures 7.22 through 7.24 give repre-sentative acceleration time-history plots for accelero-meter A5 for a SVA, CVA and MVA test. Envelope response spectra for the SVA, CVA and MVA tests at 1% of critical damping for each structure mounted accelerometer on the containment, RPV pedestal, drfwell and Auxiliary Building are presented in Section 8.
A review of Table 7.6 shows that the majority of peak measured accelerations are considerably less than 50% of the predicted value. The measured equipment responses (A29 to A52) are generally an order of magnitude less than the predicted values and show that the high fre-quency content of the SRV time histories are greatly attenuated by the attached piping systems and floors.
Based on the very low levels of acceleration measured during SDl, many of the accelerometers were set to maxi-mum sensitivity to try and read the very small induced vibrations. The result of this was that the measured signal is in many cases equal to, or less than, the background noise. In general, as can be seen from Table 7.6, the measured acceleration is only a small fraction of the expected value. In compiling Table 7.6, a number of recorded accelerometer time histories which include some anomalies such as D.C. offset, wild points, or excessive background noise, were included when resulting values were small or did not affect the final conclu-sions. This happened most frequently for accelerometers measuring very small magnitudes where 60 Hz noise some-times dominated the data.
As noted above some of the measured acceleration time ;
histories contained anomalies such as D.C. offset, wild points and an offset due to charge amplifier satura-j MPL-01-220 7.10 l
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l tion. The data reduction - program, REDUCE, was used to remove such anomalies from the measured acceleration time histories for A4, A25, and A26, for all SVA tests, and from A7 and A8, for all tests. Other anomalies in l the measured acceleration time histories were:
o A2 is a vertical accelerometer located on the con-tainment base mat at elevation 93'-0" and azimuth 312' at radius 65'-0", outside the suppression
- pool. This accelerometer recorded apparent maximum vertical accelerations an order of magnitude higher than those measured by all other vertical accelerometers on the containment, drywell, RPV pedestal and equipment. Therefore, it is concluded that this accelerometer, or the signal condition-l ing, is malfunctioning and A2 results have been omitted from Table 7.6 and the calculated spectra.
o Accelerometers All and A12 wera mounted at mid span on the bottom flange of the polar crane rail girder
, at elevation 237'-0". Accelerometer All measured ,
radial response and A12 the vertical response.
Figure 7.25 shows a typical measured acceleration time history for both accelerometers with a clear -
ringing type response. The radial response for All is approximately an order of magnitude higher than th containment response at elevation 145'-7"-(A7,
! A9, A10) and at the top of the dome (elevation 302'-3", A14). This is a local response and has no
! effect on the containment or polar crane design.
This is demonstrated by the very low accelerations measured at mid-span of the polar crane girder (A29 to A31) where the peak measured acceleration for all tests was 0.02g.
t MPL-01-220 7.11 l Revision 0 L
the containment response at elevation.145'-7" (A7, A9, A10) and at the top of the dome (elevation 302'-3", A14). This is a local response and has no effect on the containment or polar crane design.
This is demonstrated by the very low accelerations measured at mid-span of the polar crane girder (A29 to A31) where the peak measured acceleration for all tests was 0.02g.
f I
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A3 mm 4V
>" I m C3 H* V' O 8 3 (j Table 7.1 C) C)
MEASURED PEAK PRESSURE DATA (PSID) g SVA Tests CVA Tests MTIO MT20 MT30 MT70 MTil MT21 MT31 Pt +0.86/-0.41 +1.29/-1.51 +0.93/-1.29 + 2. 2 0/- 2. 3 5 +0.75/-0.59 +2.32/-l.68 +2.65/-2.04 P2 +0.88/-l.00 +1.89/-l.87 +1.30/-l.60 +1.46/-l.11 +0.98/-0.82 +2.23/-l.42 -2.46/-l.85 P3 +1.13/-0.80 +1.70/-l.76 +1.40/-l.59 +1.'52/-l.48 +1.15/-0.70 +1.76/-l.24 +1.92/-l.57 P4 +0.51/-0.47 +0.97/-0.98 +1.14/-0.83 +0.55/-0.64 +0.54/-0.62 +1.60/-l.10 +2.07/-l.73 PS +0.97/-0.71 +1.94/-2.10 +2.15/-2.04 +0.80/-0.89 +1.27/-0.76 + 3. 4 2/-2.6 3 +4.49/-3.29 P6 +1.20/-1.30 +3.00/-3.70 +3.08/-2.60 +1.07/-0.81 +1.68/-l.29 +5.48/-3.35 +7.44/-4.47 P7 +1.53/-1.63 +2.97/-3.26 +3.24/-2.58 +1.28/-l.05 +2.29/-l.10 +3.69/-3.27 +4.99/-3.68 P8 +0.76/-l.17 +2.47/-2.54 +2.58/-2.20 +1.59/-l.20 +1.33/-0.97 +3.68/-2.71 +4.27/-3.12 P9 +2.45/-2.28 +3.68/-3.23 +3.31/-2.87 +0.14/-0.96 +2.83/-1.70 + 2. 6 8/- 2. 0 0 +3.01/-2.47
[d P10 +1.58/-l.59 +2.25/-2.09 +1.82/-l.94 +1.08/-0.73 +1.70/-l.31 +2.18/-l.75 +2.58/-l.92 pa Pll +0.86/-0.46 +0.77/-0.85 + 0. 6 0/-0. 9 4 +0.44/-0.33 +0.86/-0.42 +0.89/-0.74 +0.96/-1.02 LJ Pl2 +4.63/-5.78 +4.12/-4.20 +4.18/-4.89 +1.48/-l.14 +7.47/-3.67 +4.56/-2.81 +5.17/-2.98 Pl3 +3.10/-3.30 +1.49/-l.58 +1.05/-l.49 +1.02/-0.99 +5.50/-3.50 +1.85/-1,33 +2.27/-l.53 P14 +3.34/-2.87 +2.04/-l.67 +1.63/-l.64 +1.15/-0.97 +3.28/-2.76 +1.53/-0.96 +1.91/-l.28 P15 +2.49/-2.26 +2.03/-l.54 +1.79/-l.52 +1.02/-l.02 +2.57/-l.74 +1.37/-l.14 +1.52/-l.22 P16 +1.42/-l.48 +1.08/-0.73 +0.93/-0.71 +1.30/-0.65 +1.70/-1,26 +0.70/-0.37 +0.79/-0.55 Pl? +2.02/-l.66 +1.35/-l.15 +1.17/-1.20 +1.67/-l.07 +2.04/-l.15 + 0. 5 2/-0. 3 6 +0.66/-0.60 PIB +0.36/-0.40 +0.05/-0.16 +0.10/-0.16 +1.55/-l.50 +0.29/-0.30 +0.15/-0.09 +0.14/-0.12 P19 +0.53/-0.34 +0.27/-0.38 +0.25/-0.41 +2.75/-2.40 +0.44/-0.28 +0.09/-0.18 +0.14/-0.21 P20 +0.09/-0.12 +0.14/-0.15 +0.09/-0.16 +2.77/-l.52 +0.08/-0.04 +0.20/-0.10 +0.12/-0.12 P26 +0.87/-0.64 +1.34/-l.51 +0.72/-0.89 +0.70/-0.67 +0.98/-l.07 +1.43/-l.30 +1.49/-l.66 P27 +1.09/-0.97 +1.86/-2.14 +1.28/-l.14 +0.88/-0.80 +1.25/-1.85 +2.10/-l.75 +2.33/-2.26 P29 +0.15/-0.10 +0.10/-0.18 +0.11/-0.12 +4.06/-2.60 +0.11/-0.05 +0.20/-0.09 +0.14/-0.18 P30 +0.82/-0.45 +0.31/-0.47 +0.40/-0.49 +3.32/-2.10 +0.54/-0.32 +0.19/-0.14 +0.24/-0.19 P31 +0.10/-0.56 +0.13/-0.15 +0.11/-0.14 +3.59/-l.94 +0.06/-0.05 +0.16/-0.09 +0.13/-0.15 P32 +0.12/-0.10 +0.11/-0.20 +0.11/-0.13 +3.56/-2.20 +0.07/-0.10 +0.14/-0.08 +0.13/-0.14 Peak +4.63 +4.12 +4.18 +4.06 +7.47 +5.48 +7.44 Pressures -5.78 -4.20 -4.89 -2.60 -3.67 -3.35 -4.47
Table 7.2 SVA 95-95 PRESSURES (PSID)
Measured Pressure Test- Sensor Negative Positive MT10 P12 +4.63 -5.78 P13 +3.10 -3.30 P14 +3.34 -2.87 MT20 PS +1.94 -2.10 P6 +3.00 -3.70 F7 +2.97 -3.26 P8 +2.47 -2.54 P12 +4.12 -4.20 MT30 P5 +2.15 -2.04 P6 +3.80 -2.06 P7 +3.24 -2.58 P8 +2.58 -2.20 P12 +4.18 -4.89 MT70 P19 +2.75 -2.40 P20 +2.77 -1.52 P29 +4.06 -2.60 P30 +3.32 -2.10 P31 +3.59 -1.94 P32 +3.56 -2.20 "4
Positive Pressure Negative Pressure X = 3.24 X = -2.88 S = 0.72 S = -1.09 ti g = 2.41 95-95 pressure = +4.98 psid 95-95 pressure = -5.51 psid MPL-01-220 7.14 Revision 0 nu
Table 7.3 CVA 95-95 PRESSURES (PSID)
Sensor Measured Pressure Test Negative Positive MTll- P12 +7.47 -3.67 P13 +5.50 -3.50 P14 +3.28 -2.76 MT21 PS +3.42 -2.63 P6 +5.48 -3.35 P7 +3.69 -3.27 P8 +3.68 -2.71 P12 +4.56 -2.81 MT31 P5 +4.49 -3.29 ,
P6 +7.44 -4.47 P7 +4.99 -3.68 P8 +4.27 -3.12 P12 +5.17 -2.98
-Positive Pressure Negative Pressure X = 4.88 X = -3.25 S= 1.36 S = -0.51
~
tl3 = 2.68 95-95 pressure = +8.52 psid 95-95 pressure = -4.62 psid MPL-01-220 7.15 Revision 0 nutagh
Table 7.4 MVA 95-95 PRESSURES (PSID)
Measured Pressure Test Sensor Positive Negative MT70 Pl +2.20 -2.35 P2 +1.46 -1.11 P8 +1.59 -1.20 P19 +2.75 -2.40 P20 +2.77 -1.52 P29 +4.06 -2.60 P30 +3.32 -2.10 P31 +3.59 -1.94 P32 +3.56 -2.20 Positive Pressure Negative Pressure X = 2.81 X = -1.94 S = 0.91 S = -0.54 tg = 2.99 95-95 pressure = +5.53 psid 95-95 pressure = -3.55 psid 4
4 d
MPL-01-220 7.16 Revision 0
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O I 3N Table 7.5 N 4 C) c) PEAK STRAIN DATA (pin /in)
Sensor MVA Test Espected HT10 MT20 MT30 MT70 MTil MT21 MT31 value I
S1 2 4 3 16 2 5 5 (1)
S2 13 10 11 8 17 10 9 (1)
S3 18 12 11 7 15 8 11 (1)
S4 31 20 20 10 34 15 22 (1)
SS 3 2 3 12 2 4 5 98 S6 1 3 3 17 2 3 6 98 S8 3 4 2 22 2 3 3 98 S10 2 4 2 9 2 3 4 (2) i Sil 12 9 9 8 11 13 12 (1)
S12 43 50 41 18 42 32 31 (ll y S13 4 3 3 7 4 3 5 (1)
. S14 5 5 5 5 3 4 5 (1)
H S16 1 3 3 9 2 6 12 56 4 S17 5 5 3 4 3 6 12 56 SIB 3 4 4 6 2 3 5 56 Sl9 2 4 4 5 2 3 5 44 S20 1 3 3 8 2 3 3 44 S21 4 5 5 5 5 4 4 44 S22 1 5 4 7 2 3 4 54 S23 2 3 3 5 2 4 3 (2)
S24 1 3 3 8 1 3 4 44 S25 4 4 3 5 3 4 5 (1)
S26 I 3 2 7 2 5 4 (I)
S27 3 4 4 5 3 5 4 (1)
S28 3 5 5 7 2 4 7 (I)
S29 4 5 5 7 3 4 6 (2)
S30 2 3 4 19 3 3 7 22 S31 9 7 8 10 6 5 7 45 S32 3 4 5 14 4 4 6 45 S33 5 7 4 20 3 5 5 45 S34 4 4 5 14 5 6 4 45 Notes: 1. Expected values not calculated, allowable strain is 980 win /in.
5 2. Values not calculated - part of strain rosettes or insufficient information available.
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O t Table 7.6 UN N PEAK MEASURED ACCEt.ERATIONS (rJ )
SVA Tests CVA Tests Mean Value SVA/CVA SVA/CVA Sensor MVA Test Design Predicted MTIO MT20 MT30 MT70 P.Tl l MT21 MT31 SVA CVA Value Value Al 0.02 0.02 0.02 0.02 0.01 0.02 0.02 0.02 0.02 0.04 0.03 A3 0.05 0.09 0.08 0.09 0.05 0.05 0.06 0.07 0.05 0.35 0.28 A4 0.02 0.03 0.02 0.03 0.01 0.02 0.02 0.02 0.02 0.09 0.07 A5 0.05 0.03 0.05 0.17 0.04 0.01 0.03 0.04 0.03 0.35 0.28 A6 0.01 0.01 0.02 0.02 0.01 0.02 0.01 0.01 0.01 0.35 0.28 A7 0.02 0.03 0.02 0.05 0.03 0.05 0.07 0.02 0.05- 0.20 0.16 A8 0.02 0.02 0.02 0.02 0.03 0.02 0.03 0.02 0.03 0.05 0.04 A9 0.03 0.04 0.03 0.03 0.03 0.01 0.01 0.03 0.02 0.20 0.16 A10 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.20 0.16
-J All 0.14 0.10 0.12 0.19 0.12 0.05 0.05 0.12 0.07 N/A N/A
. Al2 0.04 0.05 0.04 0.11 0.04 0.02 0.02 0.04 0.03 N/A N/A
>" A13 0.02 0.02 0.02 0.06 0.02 0.02 0.02 0.02 0.02 0.09 0.07 00 A14 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.08 0.06 A15 0.04 0.04 0.06 0.05 0.05 0.03 0.02 0.05 0.03 0.16 0.13 A16 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.03 0.02 A17 0.08 0.05 0.04 0.06 0.03 0.02 0.01 0.06 0.02 0.16 0.13 A18 0.02 0.02 0.01 0.02 0.01 0.01 0.01 0.02 0.01 0.16 0.13 A19 0.002 0.002 0.002 0.005 0.002 0.002 0.002 0.002 0.002 0.11 0.09 A20 0.004 0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.004 0.03 0.02 A21 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.02 A22 0.01 0.01 0.01 3.01 0.01 0.01 0.01 0.01 0.01 0.03 0.02 A23 0.01 0.02 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.02 0.02 A24 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.02 A25 0.004 0.005 0.003 0.004 0.002 0.002 0.003 0.004 0.002 0.02 0.02 A26 0.004 0.002 0.003 0.002 0.001 0.001 0.002 0.003 0.001 0.02 0.02 A27 0.003 0.002 0.003 0.005 0.002 0.005 0.004 0.003 0.004 0.02 0.02 A28 0.004 0.004 0.004 0.003 0.002 -0.005 0.002 0.004 0.003 0.02 0.02 A29 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 N/A N/A 3
33 3 m 't3 4 t*
P- 1 in O HH O 8 Table 7.6 PN M PEAK MEASURED ACCEI.ERATIONS (g) oO (Concluded)
SVA Tests CVA Tests Mean Value SVA/CVA SVA/CVA Sensor NVA Test Design Predicted MTIO MT20 NT30 MT70 MTll MT21 MT31 SVA .CVA Value Value l A30 0.001 0.001 0.001 0.002 0.00 0.001 0.001 0.001 0.001 N/A N/A A31 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 N/A N/A l
A32 0.01 0.03 0.02 0.02 0.01 0.01 0.01 0.02 0.01 N/A N/A A33 0.02 0.02 0.02 0.03 0.02 0.01 0.01 0.02 0.01 N/A N/A A34 0.01 0.02 0.02 0.03 0.01 0.01 0.01 0.02 0.01 N.A N/A l A35 0.02 0.03 0.03 0.03 0.02 0.02 0.02 0.03 0.02 N/A N/A A36 0.02 0.02 0.02 0.03 0.02 0.02 0.02 0.02 0.02 N/A N/A A37 0.03 0.06 0.05 0.06 0.03 0.03 0.04 0.05 0.03 N/A N/A A38 0.03 0.02 0.03 0.03 0.02 0.92 0.02 0.03 0.02 0.36 0.29
-J A39 0.02 0.02 0.02 0.04 0.01 0.02 0.03 0.02 0.02 0.41 0.33 A40 0.004 0.005 0.004 0.005 0.005 0.005 0.007 0.004 0.005 0.25 0.20
- A41 0.03 0.03 0.04 0.09 0.04 0.04 0.04 0.03 0.04 N/A N/A A42 0.07 0.06 0.04 0.22 0.06 0.04 0.06 0.06 0.05 1.21 0.97 A43 0.06 0.07 0.06 0.09 0.06 0.07 0.06 0.06 0.06 1.59 1.27 A44 0.03 0.03 0.04 0.03 0.03 0.04 0.04 0.03 0.04 2.00 1.60 A45 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 2.01 1.60 A46 0.07 0.05 0.04 0.04 0.07 0.05 0.05 0.05 0.06 2.81 2.25 A47 0.30 0.50 0.45 0.38 0.30 0.13 0.14 0.42 0.19 2.01 1.60 A49 0.01 0.02 0.02 0.02 0.01 0.01 0.03 0.02 0.02 1.97 1.56 A50 0.05 0.04 0.01 0.02 0.04 0.03 0.01 0.03 0.03 2.52 1.80 ASI 0.13 0.10 0.03 0.06 0.13 0.06 0.01 0.09 0.07 1.20 0.96 A52 0.16 0.1R 0.04 0.06 0.15 0.08 0.03 0.13 0.09 2.84 2.27 A53 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 N/A N/A A54 0.01 0.02 0.01 0.02 0.01 0.01 0.02 0.01 0.01 N/A N/A A55 0.01 0.01 0.01 0.005 0.01 0.003 0.004 0.01 0.01 N/A N/A A56 0.004 0.005 0.004 0.003 0.003 0.002 0.003 0.004 0.003 N/A N/A I
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8.0 ACCELERATION RESPONSE SPECTRA The acceleration response spectra, Figures 8.1 through 8.23, present the calculated response for structure mounted accelerometers for all seven tests plotted as three envelopes, one each for SVA, CVA and MVA results.
The Grand Gulf design spectra for the single valve (SRVone) and all valve (SRVall) cases are also plotted on Figures 8.1 through 8.23. This provides a comparison of measured test results to design values. The comparison of design versus measured response spectra, given in Figures 8.1 through 8.23, shows that there is little of the low frequency (less than 60 Hz) response predicted by the analysis. Four of the test spectra (Al, A8, A15, and A16) slightly exceed the design spectra at frequencies above 60 Hz. And three test spectra (A13, A21, and A22) show small exceedences of the design spectra above 40 Hz. However, as noted in Section 7.4, this has no influence on the containment attached piping or Reactor Building equipment. This is clearly shown in the minimal measured response of con-tainment mounted piping and equipment.
In addition, Reference 16, showed that these anticipated high frequency exceedances were not a concern for the Grarid Gulf piping or equipment. The principal conclusions of Reference 16 can be summarized as:
o Grand Gulf measured structural accelerations (zero period accelerations) were less than the predicted values for all tests as shown in Table 7.6. The high frequency test response spectra exceedances are of little concern to piping design or equipment and component qualification.
MPL-01-220 8.1 Revision 0 nutggh
o Modal participation factors, and the percent rela-tive contribution of each mode, for five Grand Gulf critical piping systems were studied. The studies showed that between 50% to 90% of the total system response is captured by modes with frequencies less than 30 Hz, and less than 10% of the total system response comes from frequencies above 60 Hz.
Therefore, as much as an order of magnitude less piping system response would be expected if the test spectra were used instead of design spectra
-for the SRV discharge load contribution to the total stresses.
o All equipment and components in the Grand Gulf reactor building have been requalified by analysis and/or test - for SSE + SRV + LOCA DBA loads. This qualification level is multifrequency and is gener-ally considerably higher than the measured test spectra. Thus, the relatively low amplitude, high frequency test spectra exceedances do not have any impact on the equipment or component qualifica-tions.
Acceleration response spectra are not reported for the following locations:
o A2, containment vessel basemat. Measured accelera-tions are incorrect as noted in Section 7.4.
o All and A12, polar crane girder. Measured local response of girder not that of the containment shell, design spectra are not available.
MPL-01-220 8.2 Revision 0 nutggh
o A23 and A24, top of fuel po'ol wall elevation 208'-
10". Design spectra not available for comparison.
Magnitudes and frequency content similar to A21 and A22.
o A29 to A52, equipment mounted accelerometers.
These pieces of equipment are qualified and designed for peak accelerations. As shown by Table 7.6 the design values are very conservative when compared with test results.
o A53 to A56, Auxiliary building. Design spectra were not developed for carry over of SRV response to the Auxiliary building. This assumption is shown to be correct by the very small magnitude of zpa reported in Table 7.6.
MPL-01-220 8.3 Revision 0 nutggh
0.48 l"~3 0.41 i
l \
l \
l \
. I \
l 'y I
\
l \
~
C CVA f g a WA f g
+ MVA i \
l \
l \
' \
(3 0.32 -
~
,s j g
/ \
z O
i s
\
l \
/ \
( sI i h
a 0.24 - SRVall 1 1 l Noise, 8
l/
\
N I g; 0.16 - I f
,\
k \'
i Savon. >\ .e
) l l \l.*. k. {$ k:
' ' f\f*y l kN j l 5 , q jTij f f*
0.08 - / .\ A 'l' ulv -
A
. -M' -#
_-/ % 7~
0.00 Y ,
100 2 3 4 5 6 7 8 9 '10I 2 3 4 5 6 7 8 9 '102 I FREQUENCY (CPS)
Figure 8.1 ENVELOPE RESPONSE SPECTRA ACCELEROMETER Al CONTAINMENT BASE MAT. ELEV. 93'-0", RADIAL MPL-01-220 Revision 0 8.4 nutggh
l 1
l 4.0 1 "f" 3 \
/ \
/
/ \
3.80 - / \
3 88 3.1 /
\u 1.4 \
1.25 \
1.25 s
\
1.00 - o cvA I
a WA
+ MVA I \
6 0.80 - \
~ / \
$ i N \ \
t II
\
$ I l \.
savail ,/ j N d 0.60 -
8 / /
< l ii l
f savone lli
. .s i \
0.40 -
f if *
/ '
b l '
6 0.20 - I
/ 'vT'
^. / l/ A h
+
', g)i W 8
- %g'tg\s '
- %, / \/
s' /
0.00 , .
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.2 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A3 CONTAINMENT ELEV. 109'-l 1/2", RADIAL MPL-01-220 Revision 0 8.5 nutggb km w
-4 -, -- - -
.76 --
0.74 f~~3 \
.72 - \\. 15'_, o.s2
/ ,
oJ' \._ la __
0.20 - Y o.24 3 o WA / g 4 WA /
+ MVA '
/
/ \
\
Q 0.16 - 7 5 '
/ i E /
a:
3 0.12 - .
d SRVall [ I
' /
Pc I
\ f]~"f
\p <
pl-l r 0.08 - I SRVone ..
I i
) { l 0.04 - p Y
l ,s_
t 0.00 - , , , , , ,
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.3 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A4 CONTAINMENT ELEV. 109'-1 1/2", VERTICAL j MPL-01-220 8.6 Revision 0 nutggb c
s 3.94 -
3*
\
\
3.86 .
,,, / 38 2.2 \
7 -~- \
/ 1.3 \ .00 d
'% ~
_ .38 I .40 o CVA I a SVA I
+ MVA I I
- 0.32 -
S I b SRVone 5 I I\
x
~
SRVall /
8 I f r l'..
l j )
)
O.08 - / ,
/ .hb
/ L'
,s -lyg f 0.00 , ,
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 89 102 FREQUENCY (CPS)
Figure 8.4 ENVELOPE RESPONSE SPECTRA ACCELEROMETER AS CONTAINMENT ELEV. 109'-l 1/2", RADIAL MPL-01-220 Revision 0 8.7 nutggb
3.92 y-- ,
/ \
3.88 - / 3.s N Kf N 2.2 s 0.5 / \ soI 0.M -
g oI %.se o cvA ;
a SVA f
+ MVA
/ Noise SRVall /
SRVone
@ 0.16 - /
/
i-7
/ ,'
y 0.12 -
O i f
< / I
/ i{ - ! )p i 0.08 -
L d
/.
A i i
/ I\ R
/
0.04 -
/ -
p
/
d 0.00 - , , , , ,
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.5 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A6 CONTAINMENT ELEV. 109'-1 1/2", TANGENTIAL MPL-01-220 Revision 0 8.8 nutggh
2.18 "m
/ \
2.13- ,3 _/ i .s i2
\
r-t.2s j N,
- i. N 0.so s 0.80 \
0.25 - l o.s g
\
a SVA
+ MVA \
f
\
l s g 0.20 -
2 SRVall
!4 y SRVone c I
$ 0.15 - h N I >
j j
I.$ '
L 0.10 - l
/ 4
/
0.05 -
j an*
0.00 . . . . . . . .
100 2 3 4 5 6 7 89 103 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.6 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A7 CONTAINMENT ELEV. 147'-7", RADIAL MPL-01-220 8.9 Revision 0 nutggh
0.90
.86 f~~3
/ \
0.85 - \ .se f
\ ," 's f 0.33 V ,4g N N
0.25 - a gg a svA l h
\
j
+ MVA
/
\
6 0.20 - \
z l \
y / g
$ [ \
g 0.15 - l p y SRVanj )
! I
/ SRVone 0.10 -
- i. ill!
/
/ 'I I
/ \
0.05 -
/
]
l /
O.00 , , ,
i 100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 l FREQUENCY (CPS) l l
Figure 8.7 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A8 l
CONTAINMENT ELEV. 147'-7", VERTICAL MPL-01-220 Revision 0 8.10 l
nut d
1 2,14 -
s
_- \
// \
2.06 - ,/ \
e i.s \
1.25 r# 0.8 \
r-0.5 g '
\
f O.5 \
0.40 - O CVA \
a WA , \
)
+ MVA i t. \
l !\ \
' I \
g 0.32 - l l\
j (
z I
- \
I E
m l I k-
- p "j 0.24 - SRVall l
!f*'
0 l i'
% l i \ \. r\
l SRVone l l \)
! i ;\
0.16 - l i .' I. '
\
l ! l 'k .Dv
/
l l
,y l !~ \.. \
l . %s\ -
7 j',; \,
0.08 - / x..' : i
,/
_ ~
ff I $ \ -
0.00 '100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 89 102 FREQUENCY (CPS)
Figure 8.8 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A9 CONTAINMENT ELEV. 147'-7", RADIAL MPL-01-220 Revision 0 8.11 l . nutggb
2.14 2.1
'\
\
2.06 - ,,, j ss s
\ 14 %
/
" 0.80 N a
0.10 - O CVA f 020 o SVA ,
+ MVA I [
l l' g 0.08 - SRVall f
~
j SRVone 8 i) i 8 lQ
! j
$ 0.06 -
e j u.
b '
/ '
! $l O.04 - , fl 9 4 fAfV I gy 0.02 -
- _ -- &'\Q/\/,7l' jy Q,'
,r 7!
g/
O.00 - , , , , ,
'100 2 3 4 5 6 7 8 9 '10I 2 3 4 5 6 7 89 102 FREQUENCY (CPS)
Figure 8.9 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A10 CONTAINMENT ELEV. 147'7", TANGENTIAL MPL-01-220 Revision 0 8.12 nutggb
2.24 .
2.2 r~3 2.16 - I i s
,, g
(~ ~ 3 \ t- \
/ t.1 g o.ss [1, 0.40 - , y,
/ w lj \
I a WA I{ \
+ MVA / } \( j j u i
\
! \
g 0.32 - /
z / { ' ' (\ s O I,\ \
p SRVail[ ,
s '/ /L .
,\
$ 0.24 - j'N' \ h
< l l '
j f'b '
\\ f Y' ~
d 1 SRVone j ; /'{I jj }
0.16 - f I f i a
l'
\\/
111 A
-' } s\)
/ r t ,
0.08 - )
I
,. /lill d.,v n.r" '
'i.
/
}l'i('nf
-2 -
s 0.00 , , .
100 2 3 4 5 6 7 89 101 2 3 4 5 6 789 102 FREQUENCY (CPS)
Figure 8.10 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A13 CONTAINMENT DOME ELEV. 302'-3", VERTICAL MPL-01-220 Revision 0 8.13 l nutggh
2.06 2.05 1.55 f
,/~ T / \
2.M - / o,,3 V o.s2 p
0.30 ,
g,,
~~
- 0.20 0.10 - O CVA I a SVA I
+ MVA f I
g 0.08 - lSRvall
- I
/
z O SRVone p f 1 .
. uj 0.06 - I ' -
If U ) ,
/ .I f '
/ t \[ f O.04 - / l jf
/ l :
y l t ! 's ,q r k' i V
0.02 - / y/Th kui p-(/ 1 s j /
- j
- f
- we 0.00 - . . . . . . . .
'100 2 3 4 5 6 7 8 9 101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.11 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A14 CONTAINMENT DOME ELEV. 302'-3", RADIAL MPL-01-220 Revision 0 8.14 nutggb
2.10 2.os r- m
/
2.00 - / i. i l \t.<
/ '% '3 ~
s j ).9 0.50 - o cvA / as 3 a SVA / o.8 V
\
+ MVA j
/ \
@ 0.40 - iJ I Z I
~
I l o I \ j g Sav.af l h I
$ [-
g 0.30 - I .,
! \
8 f SRVone %
< l o I ' hA l f\q y )/'; \ 'i 0.20 - p
/
/ I h
/
0.10 - / I g ,
,s /
0.00 ' . . . . . .
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.12 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A15 DRYWELL ELEV. 120'-10", RADIAL MPL-01-220 Revision 0 8.15 l.
nute_cb
.72 0.7 I~ ~3
/ \
/ \
.68 - f o g
/ \ o.
/ G 32 n
/
3 .20s \--
d' n 0.20 - o 34 I \
o WA f \
+ MVA / ;
\
/ \
\ ' I l \ l'
- 9. 0.16 - I \
z 9 /
I \
\ lh)'
f
> i I \
E -/ \ l
= ,
l W 0.12 - 1 /
r\
d SRVall ,
i I
O
< I j;pj q ff j{y k,_ _
I - l ij f b SRVone ,
0.08 - ; l v' i
! !l \\jm.! W}
} j'
, [Q i 4 O.04 - ^ / ! *
/
/ / /mV ,~, - il-
/ -
0.00 , , , , . ,
'100 2 3 4 5 6 7 8 9 101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.13 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A16 DRYWELL ELEV. 120'-10", VERTICAL MPL-01-220 Revision 0 8.16 nutggh
2.09 2.0s
/** ~ ~N
/ \
\
2.01 / t.s s 3,,
j
/
f t.3
' / %
0.5 0.45 N 0.40 - o cvA I'-
\
4 WA l \
+ MVA ;
\N I
0.32 -
3
~
l z l
- I 7
c:
y 0.24 -
sav iil l
f
/
O
/ SRVone >
/ )
l
?
l 0.16 - l
/ i l
/
l l A 4 , I)
, !\/sn t 0.08 -
'! y ij ' M, 3
,g
/ -
sil
/ / i
) } hj
(
l c j s
s
/~ --l l 0.00 *'100 2 3 4 5 6 7 8 9 '10I 2 3 4 5 6 7 8 9 102
! FREQUENCY (CPS)
Figure 8.14 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A17 DRYWELL ELEV. 120'-10", RADIAL l
MPL-01-220 Revision 0 8.17 nutg_qh
2.08
," ~ ~ ~\
IM- / \
,/ 1.s \
,. A / W,,, i ~ ~ ~.s ,N
/ o N"
0.20 - o cy, f o SVA /
+ MVA /-
/
/
1 3 0.16 -
~
/
Z /
9 /
E /
88V'" /
E 0.12 -
$ l l j) !,\
8 3 # .,aj
/ 7 0.08 - / f s fi
/ /'V' ;/ /j j i , ,
'y n
/ x !l
\\
/ n stt s l r' \,j ;
- h h o
' % i 0.04 - -
- 1
/
,/ f'Y ,
&,W
/
,. ~.
. ,/
VY 5h**
.c 0.00 # , , , , . .
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.15 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A18 DRYWELL ELEV. 120'-10", TANGENTIAL e
MPL-01-220 8.18 Revision 0 nutggb
- + -
+
1.52 1.5 14
,/
I.40 " / \ 0.90 ' s ,
/ ',O.20 f \ ' ' ' 's
,# [ 0.30 0 'O 4.00 -
o cVA /
% a WA /
7 + MVA /
l b
@ 3.20 - / J f I
z snVasi / , l 9 l \
a
= /
l 4 i
f/ I A1 h 2.40 - / SRVone f f
i )[ ,f j U-
/
) I\ .
, \\ t '
l'\f g l1 l s
e ! {e i y il , ,
/ \/ / !
1.60 -
/
/
i f' \\ ;\
g \l
,f ',
l V
l!
'\ .
/ \ ' \l
/ J ,,
0.80 - , I s 'd j\
e ~.Q 'g ,
\i nha /
0.00 , ,
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 89 102 FREQUENCY (CPS)
Figure 8.16 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A19 DRYWELL ELEV. 147'-7", RADIAL MPL-01-220 Revision 0 8.19 nutggb
l
.82 -
0.si r- a
/ \ '*
.s0 - .
j
/ 0.19
\
.s s3 0.31 %
/ 0.12 f j
\
' % ., l' O.10 -
l a SVA f
+ MVA I
g 0.08 - l E l 5 l d
u l y 0.06 - , )1 yb
/ , I
,3 I
savan j ;.
f'- f 0.04 - / savon. ,
,, f. ' l ;l I
/ !\
/
/
l6\ l \Y*:),\l \1l))~
/ / ih l' pp
\
~
/ ,/ vwV i . n h
\ d
)[ k9 0.00 v. 100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 89 j2 10 FREQUENCY (CPS)
Figure 8.17 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A20 DRYWELL ELEV. 147'-7", VERTICAL MPL-01-220 Revision 0 8.20 nutggb
0.20 -
ocVA a SVA
+ MVA 0.17
@ 0.16 - gI~~)
l I
Z I 9 l I
T I i a .
d y 0.12 -
U
/_ g - I g,, ,
f, p
y J 0.10 I ,1,\ l f
SRVad / 0.085 jj j 7'
O.M - I t jg g l
/ SAVone j'\ l '
/
y 2 ! iirdj j P
-^
wu 0.04 - .
~ A y\1:
,/ '
/ .s .~Y x
Ps3~-
0.00 7 , , , ,
'100 2 3 4 5 6 7 89 101 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.18 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A21 DRYWELL ELEV. 184'-6", RADIAL MPL-01-220 Revision 0 8.21 nutggb
.185
'y' I
I I
.165 - [
I "
't - - .122 l o wA
.t s e l
r- . , o, L_. s
\
e WA f g
+ MVA l I ( ;
\
G 0.08 - ;
z 1 i g 9 I b. \
$ I I\l \
IO U 0 06 - SRV883 I
\ \ \l k 5 l
- \
I f s'
) SRVone I
.\
\
l c 1)
( /
) y ,
l=\ 'l\ l '
\ )k%
i
>ElLJ l s f
0.02 - j j ,! ,I
/
j
//
s ja D p'
0.00 - , , .
5 6 7 89 102
'100 2 3 4 5 6 7 8 9 '10I 2 3 4 FREQUENCY (CPS)
Figure 8.19 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A22 DRYWELL ELEV. 184'-6", TANGENTIAL MPL-01-220 Revision 0 8.22 nutggh
.364-o.se r - - '
/ \
/ \
l \
.356 - / \
/
0" to.m
- o. o.ns ~' N o.12 4.00 - N O CVA \
l -
g a SVA 6 + MV A I
6 3.20 -
~
J l
z I ,i 9 \
\
s J l s U 2.40 - SRVone / '
E j N \ )
l ,
/ l'
{' '
't 1
/ If$ , ,
l 1.60 - / SRVall
/ 1/
0.80 - /
s 0.00 - " , , , , , , , , , ,
100 2 3 4 5 6 7 8 9 '101 2 3 4 5 6 7 89 102 FREQUENCY (CPS)
Figure 8.20 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A25 RPV PEDESTAL ELEV. 10 0 ' - 9 , RADIAL MPL-01-220 Revision 0 8.23 nutggh 1
[ .
81.5 -
o.at
/~~"~ T
/ \
31.0 - f No.23
/ o.22 i
/ '33 '
0.o7 2.50 o CVA o.os a SVA [
N + MVA
/
7 /
g 2.00 - /
$ ! 60 Hz Noise
/
SRVone U 1.50 -
0 /
SFlVaH 1.00 -
/ ,
/ g 1 0.50 - I L l
I 0.00 , , .
100 2 3 4 5 6 7 89 10 1 2 3 4 5 6 7 8 9 102 FREQUENCY (CPS)
Figure 8.21 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A M RPV PEDESTAL ELEV. 100'-9", VERTICAL MPL-01-220 Revision 0 8.24 nutg,gb
36.5 o.se r~~m
/ \
35.5 - ou LN
/ o.its \\o.oo ks 5.00 - o cvA I ,
\
N
- WA $ \
C + MVA i
_ f g 4.00 -
h w SRVall l SRVone I
l g 3.00 ~ g
/
2.00 -
} l
/- ( II
/
- / A 1a-
/,
/
/m M a FY, ]
k 0.00 7 , ,
'100 2 3 4 5 6 7 89 101 2 3 4 5 6 7 8 9 l02I FREQUENCY (CPS)
Figure 8.22 ENVELOPE RESPONSE SPECTRA ACCELEROMETER A27 RPV PEDESTAL ELEV. 100 '9", RADIAL MPL-01-220 Revision 0 8.25 nut 9_Qb
36.4 -
c.:s
/~ ~ ** "\
/ \
/
12
( 1# '
35.6 - "" / s
/ \
\
/ 0
/ o.115 ,,,
%.12 4.00 - O WA [ N g
g a SVA N., _
g + MVA f I
5 3.20 - /
2 '
O 60 Hz f Noise d 2.40 - sgV.ii
) I 8 / i SRVone
/
l 1.60 - / i
/ l
/ .
/ I
/
/ )
A I:
W )
/
O' ~
,/ , , .s '.,
Nj
[ ~
,, %/ ,M v' ., *[ .
l - \r l &.,N\f *D /"
sj ' -
0.00 - , ,
100 2 3 4 5 6 7 89'I01 2 3 4 5 6 7 8 9 '102 i FREQUENCY (CPS) l l
l Figure 8.23 i
EliVELOPE RESPONSE SPECTRA ACCELEROMETER A28 l RPV PEDESTAL ELEV. 100'-9", TANGENTIAL l
l l
l MPL-01-220 l
Revision 0 8.26 nutggh i
L
9.0 COMPARISON WITH KUOSHENG DATA This section provides comparisons of the data collected during the Grand Gulf SRV discharge tests with the data collected during the SRV tests conducted at the Kuosheng Nuclear Power Station in August 1981, reported in Reference 10.
9.1 Suppression Pool Boundary Pressures The Grand Gulf measured suppression pool boundary pres-sures reported in Section 7.1 are bounded by the Kuo-sheng measured results. Table 9.1 provides a comparison of the calculated 95-95, and design pressures for SVA, CVA and MVA for Kuosheng and Grand Gulf. Figure 9.1 through 9.12 provide typical Kuosheng measured SVA, CVA and MVA pressure time histories and power spectra den-sity (PSD) plots. Comparing these with Figures 7.1 through 7.12 shows that the measured pressure traces have a similar form for both plants. The frequency content of both is also very similar; however, the amplitude of the high frequency initial air clearing spike is smaller for Grand Gulf. This is probably the result of the smaller taper angle in the quencher hub (Grand Gulf is 10.4
- vs 17. l' for Kuosheng) .
9.2 SRVDL and Quencher Internal Pressures As described in Section 7.2 the unfiltered peak SRVDL pressure measured for SD1 is a 450 psi spike. A similar phenomenon was observed at Kuosheng but af ter filtering of data to 100 Hz this spike was reduced to 224 psi for a first actuation. The peak Grand Gulf pressure mea-sured for MT70, equivalent to a CVA, was 282 psi com-pared to a peak of 179 psi for Kuosheng. The recorded MP L-01-2 20 9.1 Revision 0 nutggb
pressure trace for MT70 follows the same pattern measured at Kuosheng and is well below the 550 psi design pressure.
The peak internal quencher pressure for Kuosheng was 160 psi compared to 242 psi measured for MT70 at Grand Gulf. These pressures are much lower than the 550 psi design pressure.
9.3 Strain Data Figures 9.13 and 9.14 provide typical measured Kuosheng strain time histories. Because of the widely different distribution of strain gauges and differences in quencher support designs, it is not possible to draw a direct comparison of strain measurements for identical items. The recorded strains for the Kuosheng quencher support were approximately 15% of predicted values compared to the peak MVA recorded Grand Gulf strain which is approximately 45% of predicted.
Submerged structure piping stresses, converted from strains, measured at Kuosheng range from 160 psi to 760 psi compared to peak calculated stresses at Grand Gulf of 410 psi.
The measured strain data for both Kuosheng and Grand Gulf show similar trends. Measured values are small compared to expected values and are insignificant when compared to material code allowables.
9.4 Accelerometer Data Figure 9.15 through 9.24 provide a comparison of acce-1erometer response spectra data collected from the MP L-01-2 20 9.2 Revision 0 nutggb
~
Kuosheng and Grand Gulf tests. These figures show the single valve design spectra' for Kuosheng and Grand Gulf, the single valve first actuation SRV test spectra for Kuosheng and the envelope spectra for all tests (SVA, CVA, MVA) for Grand Gulf.
Review of these figures shows that .in most cases the SRV test results for all tests at Grand Gulf are similar in shape and magnitude to the SVA results from Kuosheng.
In a few cases the Grand Gulf measured test spectra exceeds the Kuosheng test spectra and the Grand Gulf design spectra in the region above 60 Hz. However, it is obvious from the measured equipment response, at Grand Gulf, which is typically an order of magnitude less than expected, that these exceedances do not have any significance in relation to the Grand Gulf equipment design.
9.5 Summary The data collected during the Grand Gulf SRV test pro-gram is similar to the data collected at Kuosheng. The much larger Kuosheng program provides a good data base on which to verify acceptability of the Grand Gulf design.
MP L-01-220 9.3 Revision 0 nutggb
Table 9.1 COMPARISON OF SUPPRESSION POOL BOUNDARY PRESSURES (PSID)
Grand Gulf Kuosheng SVA 95-95 +4.98/-5.51 +7.62/-5.71 max / min III +4.63/-5.78 +12.05/-7.15 Design +18.2/-7.7 +16.6/-7.38 CVA 95-95 +8.52/-4.62 (2) max / min +7.47/-4.47 +9.81/-9.44 Design +18.2/-7.7 +16.6/-7.38 MVA 95-95 +5.53/-3.55 (3) max / min +4.06/-2.60 +10.11/-8.89 Design +10.3/-6.4 +9.85/-6.15 NOTES:
- 1. Max / min provide the peak positive and negative pressures for -
all tests.
- 2. 95-95 pressure was not calculated for Kuosheng. Peak measured pressures were +9.81/-9.44 psid for Kuosheng compared to +7.47/-4.47 psid for Grand Gulf.
- 3. 95-95 pressure was not calculated for Kuosheng. Peak measured pressures were +10.11/-8.89 psid for Kuosheng compared to +4.06/-2.60 psid for Grand Gulf.
i
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10.0 CONCLUSION
S Review of the data collected during the SRV tests clearly demonstrates that the objectives of the test program have been met. The major conclusions drawn from the test data are:
o The measured peak pressures for SVA, CVA and MVA are generally less than the predicted values and are well below the Grand Gulf design values.
o The pressure time history wave form compares favor-ably to the General Electric Company's GESSAR predicted wave form used for the Grand Gulf plant design. The initial high frequency portion of the wave form is not as pronounced as that measured at Kuosheng and has little effect on Grand Gulf struc-tures, piping and or equipment.
o The measured strains for the containment basemat and wall liners, the quencher support and submerged piping are less than half the predicted values.
o The peak measured zero period accelerations (zpa) are well below the predicted values at all locations. The peak measured piping and equipment accelerations are small compared to predicted values.
o The envelope spectra developed for the SVA, CVA and
, MVA cases are small compared to the design spectra for frequencies below 60 Hz. In three cases the test spectra exceed the design spectra at fre-quencies above 40 Hz. However, this does not result in significant strain response as shown by MP L-01-2 20 10.1 Revision O' nutagh
the small-strain levels and low accelerations of the containment' attached piping.
It is concluded that the GESSAR methodology used for the Grand Gulf plant design, reported in Appendix 6D of the Grand Gulf FSAR, provides a design which is conservative and has considerable margin for SRV discharge loads.
MPL-01-220 10.2
' Revision 0
11.0 REFERENCES
- 1. Letter, L.F. Dale (MP&L) to H.R. Denton (NRC) AECM-82/150, Dated April 13, 1982.
- 2. Letter, L.F. Dale (MP&L) to H.R. Denton (NRC) AECM-85/0076, Dated March 11, 1985.
- 3. " Grand Gulf In-Plant Safety Relief Valve Test - Test Plan", NUTECH Document No. MPL-01-008, Revision 3.
- 4. " Grand Gulf In-Plant Safety Relief Valve Test -
Shakedown Tes*.s - Grand Gulf Startup Test Procedure l-M62-SU-78-3 (Supplement 1)", NUTECH Document No. MPL 010, Revision 5.
- 5. " Grand Gulf In-Plant Safety Relief Valve Test - Matrix Tests - Grand Gulf Startup Test Procedure 1-M62-SU-78-3 (Supplement 2)", NUTECH Document No. MPL-01-012, Revision 5.
- 6. " Grand Gulf In-Plant Safety Relief Valve Test -
Acceptance Criteria for Real Time Pressure Measurements", NUTECH Document No. MPL-01-035, Revision 2.
- 7. " Grand Gulf In-Plant Safety Relief Valve Test - Location and Acceptance Criteria for Accelerometers", NUTECH Document No. MPL-01-042, Revision 1.
- 8. Letter, R.S. Trickovic (Bechtel) to M. Taylor (NUTECH),
VB-81/0608, Nov. 25, 1981 and NUTECH Calculation File No. 32.801.0341, Revision 1.
- 9. Containment Loads Report (CLR) - Mark III Containment, GE Document No. 22A4365, Revision 4.
- 10. NUTECH Report ZTP-06.310, " Final Test Report, Safety Relief Valve Discharge Test, Kuosheng Nuclear Power Station Unit No. 1", Revision 0, Dated August 16, 1982.
- 11. Letter, L. F. Dale (MP&L) to H. R. Denton (NRC)
AECM-85/0179, Dated June 6, 1985.
- 12. Letter, L. F. Dale (MP&L) to H. R. Denton (NRC)
AECM-85/0196, Dated June 18, 1985.
- 13. Letter, L. F. Dale (MP&L) to H. R. Denton (NRC)
AECM-85/0212, Dated July 3, 1985.
MPL-01-220 11.1 Revision 0 nutggb
- 14. Le tter, T. M. Novak (NRC) to J . B. Richard-(MP&L) Docket No. 50-416 " Grand Gulf Nuclear Station Unit 1 - Safety Relief Valve In-plant Tests," Dated July 23, 1985.
- 15. "D. C.' Shift on Vibration Measurements in Nuclear Power Plants," Domenico De Lucchi, The Journal of Environmental Sciences, May-June, 1982.
- 16. Letter, L. F. Dale (MP&L) to H. R. Denton-(NRC) AECM-82/79, Dated March 15, 1982.
MPL-01-220 11.2 Revision 0 nutggb ,
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i i-APPENDIX A
- SIGNAL CONDITIONING EQUIPMENT-AND DATA ACQUISITION SYSTEM i
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Signal Conditioning and Data Acquisition System Strain gauges and pressure sensors were conditioned with a Vishay 2100 signal conditioning / amplifier system. The Endevco acceler-ome ters inside the containment had signal conditioning provided by an Endevco Model 2652Mll remote charge converter and an Endevco Model 4479.lM3 Mode Card. The Endevco accelerometers outside the containment had signal conditioning provided by an Endevco Model 2721AM1 charge amplifier.
Vishay Signal Conditioner The Vishay 2100 was be used to condition the strain gauge and pressure transducers. This conditioner and amplifier system is a DC voltage system with one power supply and ten amplifiers for each 5-1/2 inch high rack mount chassis. This system features independently variable excitation for each channel (1-12 VDC),
aQd will accept quarter , half , and full-bridge inputs as well
.as DC signals from other than bridge sources. Internal to each amplifier channel are 120-ohm and 350-ohm bridge completion com-ponents for quarter- and half-bridge gauges, as well as internal shunt calibration resistors to simulate approximately 11000 microstrains. Each channel has a bridge balance network that will offset a 13000 microstrain imbalance, and an always-active LED null indicator and balance resistors to compensate for line resistance.
The 2100 System has a signal output from 0 to 10 VDC up to 100 mA with a frequency response of 5 KHz. All signal and power outputs are current-limited for short circuit protection. Transducer excitation and input signals were connected to the 2100 system using a 10-pin Cannon connector with output signals routed to a 3-pin Cinch Jones connector at the rear of the system.
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After transducer hookup, normal setup procedure for the Vishay 2100 system only-requires offset balancing and output gain adjustment. This system will accommodate any common data collection or monitoring equipment.
e ' Specifications
- Bridge Completion: 1/4-bridge completion network per channel
- Bridge Balance Range: 3000 microinches/ inch
- Calibration: Internal calibration of 1%
- Amp Gain: 100 to 2000 continuous or steps of 100, 500, 1000 and 2000
- Input: Differential
- Input Impedance: 25 MQ differential or common mode
- Output: 10V maximum
- Linearity: 0.05% at DC
- Stability: 0.5% after 15 minutes Remote Charge Converter Signal Conditioner The Model 2652Mll is a charge-to-voltage converter designed for use with piezo-electric transducers. The Model 4479.lM3-plug-in mode card is a signal conditioner designed to provide power to, and condition the signal from, the Model 2652M11 converter.
e Description The charge converter, located near the transducer, converts the electrical charge generated by the transducer to a low impedance voltage signal. The output is essentially unaffected by the length of the cable or changes in cable capacitance between transducer and driver. Only a single coaxial cable or a shielded, twisted pair is required between the 2652Mll converter and the 4479.lH3 mode card.
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Circuitry on the plug-in card provides a constant current for the converter, a voltage amplifier, and a range switch. A calibrated dial is also provided to set in transducer sensitivity. Full-scale output of 2.5 volts peak is obtained for input measurements of 0.1, 0.3, 1.0, 3, 10 and 30 g's.
' Performance Specification: Remote Charge Converter e Electrical Characteristics Input Characteristics Input Connection: The input is single-ended with one side connected to signal ground.
Input Source Impedance: 25 Mn minimum Source Resistance: The input is restricted to capacitive-type devices and should not be loaded with less than Mn.
Source Capacitance: The maximum allowable source capacitance to meet all specifications is 20,000 pF.
Output Characteristics Output Connection: The output is single-ended with one side connected to signal ground.
Minimum Load Impedance: The minimum load impedance to meet all specifications depends on the capacitative load and bandwidth and should be such that the load current does not exceed 8 mA pk.
Minimum Linear output Voltage: 13.0 V pk-pk.
Output Bias: 18 V typical.
Output Impedance: Less than 50.
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Residual Noise: Less than the total of 0.6 pC rms plus 0.005 pC rms per 1000 pF of source capacity referred to the input.
e Transfer Characteristics Sensitivity: 0.2 mV/pC.
Accuracy:
- 1% of full-scale with source capacities of 1000 pF or less.
Gain Change vs. Source Capacitance: The gain will change less than 0.05% per 1000 pF change in source capacitance.
Frequency Response: t 5% 1 Hz to 10 KHz (with reference to 1 KHz response).
Linearity: 0.5% of reading from best-fit straight line approximation to the curve of output amplitude vs. input amplitude.
Harmonic Distortion: 0.2% maximum.
Gain Stability with Time and Temperature: Less than 2% over the temperature range as specified below.
o Operating Temperature Range: -55'C to +85'C.
e Power Requirements The Model 2652M11 charge converter is powered from a constant current source with the following characteristics:
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Current: 6 mA quiescent plus current required to drive load impedance. Combination not to exceed 14 mA. .
Compliance: 25 V minimum; 26 V maximum.
- Output Impedance: 40 kn minimum.
Noise: 1 microamp pk-pk maximum.
Connection: The current source is connected between the output and the common terminals on the Model 2652Mll converter with the output terminal sinking current.
- Case to Signal Ground Isolation: > 10Mn @
100 vdc.
Performance Specification: Mode Card Model 4479.lM3 e Input Characteristics Input Connection: Single-Ended.
Input Resistance: 10000 in-series with 390pF.
o Output Characteristics Output Connection: Single-Ended.
- Linear Output Voltage: 2.5 V pk, Full-Scale.
- Linear Output Current: 2.5 mA pk, maximum.
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- Output Impedance: 500, maximum, in-series with 200 uF.
e Power
+30 V de e Ground Signal ground is isolated from every other channel and rack enclosure.
e Transfer Characteristics
-- Full-Scale Ranges for Sensitivities:
1 to 10 pC/g: 1, 3 , 10, 30, 100, 300g 10 to 100 pC/g: 0.1, 0.3, 1, 3, 10, 30g
- Actual Gain: 0.8 to 2500 mV/pC.
- System Accuracy:
- 3% of F.S., any range, at
+24*C (+75*F) and source capacitance of 1000 pF, maximum.
- Gain Stability: Better than 0.5% per 1000 pF source capacitance. Better than 2%, -10*C to
+65*C (+15'F to +150*F). Gain decreases approximately 1% for every 100 of cable resistance.
- Frequency Response: i 5%, 1 Hz to 10,000 Hz.
- Linearity:
- 0.5% of reading from best straight line.
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Total Harmonic Distortion: 0.2%, maximum.
- Residual Noise: Less than the total of 0.0075 pC rms plus 0.0025 pC rms per 1000 pF source capacitance referred to input plus 0.5 mV rms referred to output.
Performance Specification: Charge Amplifier Model 2721AM1 e Input Characteristics Input Connection: Single-ended with one side connected to circuit common; restricted for use with capacitive devices
- Source Impedance: 1 kn minimum shunt resistance; 30,000 pF maximum shunt
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- Maximum Input: 30,000 pC pk without overload Slew Rate: 1,000 pC/us maximum e Output Characteristics Output Connection: Single-ended with one side l connected to circuit common
- Linear Output Voltage: i10 V, maximum
- Linear Output Current: *2 mA, maximum
- Output Impedance: 100 *10%
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1 Residual Noise: Nc < 0. 0 3 pC rms +0. 0 08 pC rms per 1,000 pF of source capacitance,
. referred to input Nr = pC rms (typical) where Rs < 100 0 Noise = N C + "r e Transfer Characteristics System Sensitivity: Amplifier gain is continuously adjustable to allow for indicated calibrated system sensitivity for transducers with sensitivities of 1 to 110 pC/g
- Indicated ranges: 1, 3, 10, 30, 100 mV/g for 1 to 11 pC/g; 10, 30, 100, 300, 1,000 mV/g for 10 to 110 pC/g Gain Accuracy: *1% of actual gain for source impedance > 10 kn and/or < 10,000 pF; *2% of gain for source impedance 1 kn to 10 kn and/or 10,000 pF to 30,000 pF
- Gain Stability: 200 ppm /*F, maximum Frequency Response: ) iS%, lHz, with source impedance > 300 kn; iS%, 3Hz to 10,000 Hz with source impedance 100_kn 300 kn; *5%, 5 Hz to 10 kHz with source impedance 10 k0 to 100 kn; *5%, 50 Hz to 10 kHz with source impedance 1 kn to 10 kn e Operating temperature range 0*C to + 75'C MPL-01-220 A.8 Revision 0 nutggb
Dicital Data Acquisition and Recording The digital data acquisition, recording and playback system (DARPS) is the Quad Systems, Inc. (OSI) Model 721. This system provides fast, accurate and flexible data gathering from an exceptionally wide variety of signal sources (both digital and analog).
The following summarizes the basic capabilities of the digital data acquisition system.
e 0.S.I. System Performance Characteristics Record Electronics Analog Input Channels: Existing system 224 channels, expandable to 256 channels in 16 channel blocks Digital Input Channels: Expandable to 32 channels, up to 16 bit parallel with handshake transfer Frequency Response Range: 200 Hz Throughput Rate: 1000 samples /sec/ channel Recording Capacity: Up to 145 Megabytes per reel Analog Input Impedance: 10 MQ Conversion Method: Successive approximation with S/H input amplifier MPL-01-220 A.9 Revision 0 nutggh
r Conversion Code: 2's complement binary Conversion Resolution: 12 bits including sign Linearity: 1/2 LSB Input Level-Analog: SV FS, 15V FS maximum over-voltage protected Digital: Standard TTL Levels Time Code Data: Days, hours, minutes and seconds may be entered into tape records as required Header Data: Manually entered by operator via front panel keyboard Powe r: 1800 W, 110 VAC, 110%, 50-60 Hz
- Playback Electronics Number of Output Channels: Existing system-four channels expandable up to 10 channels Throughput Rate: Up to 250,000 samples - per second Speed-Up Factor: Up to 1000:1 and beyond limited only by throughput rate Conversion Code: 2's complement binary Conversion Resolution: 12 bits including sign MP L-01-2 20 A.10 Revision 0 nutggb
Setting Time: 3 microsec to 1/2 LSB Slew Rate Output Voltage: 20V/second standard for SV FS; other ranges optional Output Current: 5 mA Output Filter: 4-pole active Bessel, Butterworth or Tschebychev optional Conversion Accuracy: 0.05% FS LSB at 25'C Temperature Coefficient: 20. ppm /*C Time Code Data: Days, hours, minutes and seconds may be read from tape records and displayed Tape Transport Characteristics Fo rmat: IBM-compatible Number of Tracks: 9-track Density: 6250 BPI, GCR Record Length: 4096 bytes Tape Speed: 125 ips All signal inputs to the system are processed, fo rma t t ed , and written in an IBM-compatible format on digital magnetic tape.
-The tapes generated may then be processed on any computer system MP L-01-2 20 A.ll Revision 0 nutggh
(supporting industry standard magnetic tapes) for data reduction, analysis, and reformatting to any desired standard.
Internally, the system consists of four main subsystems: 1) an analog multiplexer, 2) precision analog-to-digital converter, 3) high-speed digital magnetic tape recorder, and 4) electronic control logic. Several f actors contribute to the unusually high accuracy and throughput of this system. The analog-to-digital converter is a precision, 12 bit (11 bits plus sign) unit, with crystal referenced sampling rate. The resulting low sample interval jitter eliminates the wow and flutter problems of analog recorders. The digital magnetic tape unit is a high-speed (125 ips), very high density (6250 BPI Group Code Recording (GCR) )
device. This enables an extremely high data throughput for the system. The GCR technique provides for a very low error rate by correcting many recording errors on-the-fly. Finally, semicon-ductor mecory is used to buffer data flow through the system.
This allows data acquisition and recording functions to proceed independently, for the highest possible system throughput (up to 250,000 samples /sec).
This system provides- for on-the-spot playback of recorded data, with reconversion to analog form. It is also possible to speed up or slow down the playback over a 1000:1 range, with no loss of accuracy. Time data retrieved from the tape are locked to the signal data and thus track any speed-up or slow-down.
Analog Monitoring System The analog monitoring system consisted of conventional analog instruments oscillographs, and a spectrum analyzers. The moni-toring system has four functions: 1) real-time monitoring of signals, 2) display medium for after-the-run quick-look replay of digitally-recorded signals, 3) redundant recording of any specially selected critical signals, and 4) system operational check / calibration.
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Oscillograph Recorder Selected channels of test data were be presented in real-time through the use of light beam oscillograph recorders. Honeywell Model 15 08 recorde rs, with M-1000, M-16 00 or M-4 00-3 50 galvano-meters, are ideally suited for this application. This equipment provided for the recording of data over a frequency range from DC to greater than 200 Hz, and permitted validation of incoming data before proceeding to the next test phase.
Valve ON reference timing marks were recorded on each oscillo-graph record. However, due to a problem in the valve on electronics this signal had a built-in time delay and, therefore, could not be used as a true indication of test start.
Spectrum Analyzers A Spectral Dynamics SD375 FFT analyzer was used, with a SD422 Video printer, to provide more detailed on-site data analysis, as req uired .
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APPENDIX B INSTRUMENTATION DESCRIPTION l
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SENSOR REQUIREMENTS Type of Sensor: Pressure Transducer Sensor Identification (s): P1 to P20, P26 to P32 Location: Suppression Pool Expected Response: 10 - 35 psia Frequency Range: 0 Hz to 200 Hz Environmental Conditions:
Atmosphere: Water, Air, Steam Temperature: 50*F to 200*F Pressure (psia): 50 Manufacturer /Model: Bell & Howell/ CEC-1000-0207 Operating Range / Accuracy: 0 +.o 100 psia /*0.20% of Full Range Output'(F.R.O.)
Additional Information:
Sensors were supplied with special 1/2" thread and six electrical brazed terminal cups to replace standard electrical connector.
Sensors have 75' of steel sheath cabling. Extension cabling is P/N 6XE 24-1936STJ, Type "E" Te flon wire, overall stranded shield with Teflon tape jacket. All wires meet fire protection guidelines of NFPA-803 and IEEE 383-1974. Signal conditioning shall be supplied via Vishay Model 2100.
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n-SENSOR REQUIREMENTS Type of Sensor: Pressure Transducer Sensor Identification (s): P21 to P24
' Location: SRV Discharge Line and Quencher Expected Response: 0 to 700 psia Frequency Range: 0 Hz to 200 Hz Environmental Conditions:
Atmosphere: Water, Air, Steam Temperature: 400*F Pressure (psia): 700 Manufacturer /Model: Bell & Howell/ CEC-1000-208 Operating Range / Accuracy: 0 to 1000 psia /i0.22% of F.R.O.
Additional Information:
Outer case of sensors P23 and P24 is exposed to water, air, and steam at 50 psia and 50* to 200*F. Outer cases of sensors are exposed to air at 100% relative humidity (R.H.), 4 2.2 psiaSensors (structural integrity test (S.I.T.) pressure) and 135*F.
P 23 and P2 4 have 7 5 ' of steel sheath cabling. Sensors P21 and 22
> P24 have 10' of steel sheath cabling. Extension cabling is P/N 6XE 24-1936STJ , Type "E" Teflon wire, overall stranded shield with Teflon tape jacket. All wires meet fire protection guidelines of NFPA-803 and IEEE 383-1974. Signal conditioning shall be supplied via Vishay Model 2100.
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. SENSOR REQUIREMENTS Type of Sensor: Pressure Transducer (Low Range)
Sensor Identification (s): P25 Location: SRV Discharge Line Expected Response: 0 to 25 psia Frequency Range: 0 Hz to 200 Hz Environmental Conditions:
Atmosphere: Air, Water, Steam Temperature: 400*F Pressure (psia): 700 Manuf acture r/Model: Teledyne Taber/2215 Operating Range / Accuracy: 0 to 50 psia /with 1000 psi over-range Additional Information:
Outer case of sensor will be exposed to air, 100% R. H. at 4 2.2 psia (S.I.T. pressure) and 135'F. Signal conditioning shall be supplied via Vishay 2100. Wiring shall be 6XTF Tefzel wire, overall stranded shield with Tefzel tape jacket. All wire shall meet fire protection guidelines of NFPA-803 and IEEE 383-1974.
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G SENSOR REQUIREMENTS t .,,
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Type of Sensor: Strain Gauge-
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- S1 to S34 -
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L'ocatio n : - Odencher Support, Pool Line and Submerged Structures t1 j W
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Expected Response: See Table 4.'2"
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Environmental Conditions:
. Atmosphere:l- ,'
Water, Air, steam n '.C '
Temperat'ure: 50*F to 200*F 50 Pressure (psia):
Manufacturer /Model: Sl-S4: Ailtech/MG125/31-OlHV-75-SA106 SS-S34: Ailt ech/MG125/31-OlHV-75-6S Operating Range / Accuracy: 0.20 in/in/i 3%
Additional Information:
Temperature compensation for -SA106 is based on SA106 GR.B Steel; temperature compensation for -6S is based on 1018 steel. Sensors have 75' of 1/16" O.D. steel sheath cable with three open leads. Sensors were hydrostatically tested to 2500 psig and 500*F prior to shipment by the vendor.
Extension wire is P/N 3XE 24-1936STJ, Type "E", 600V. Teflon wire with stranded shield and Teflon jacket. All wires meet fire protection guidelines of NFPA-803 and IEEE 383-1974. Signal conditioning shall be supplied via Vishay Model 2100.
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SENSOR REQUIREMENTS Type of Sensor: Accelerometer
' Sensor Identification (s): Al to A6,' A13, A14, A53 to A56 Location: Outside Containment Expected Maximum Response: 0.10g Frequency Range: 1 Hz to 200 Hz Environmental Conditions:
Atmosphere: Air Temperature: 135'F
- Pressure (psia): 14.7 Ma nu f acturer/Model: Endevco/7703-100 or 7704-100 Operating Range */ Accuracy: 0 to 500g's/iS% full scale Additional Information:
Wiring will be coaxial sof tline cable (29AWG) .
Wire shall meet fire protection guidelines NFPA803 and IEEE 383-1974. Additional equipment to be used in conjunction with the above accelerometers will be an Endevco charge amplifier, Model 2721AM1.
- The appropriate accelerometer full scale range for the test will be set by adjusting the gain on the charge amplifier to the proper value determined during shakedown tests.
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SENSOR REQUIREMENTS Type of Sensor: Accelerometer Sensor Identification (s): A7 to A12, A15 to A52 Location: Containment /Drywell Expected Maximum Response: A7 to A29 = 0.20g A30 to A52 = 5.5g Frequency Range: 1 Hz to 200 Hz Environmental Conditions:
Atmosphere: Air Tempe rature: 135'F, 100% relative humidity; except A38 to A52 where the maximum temperature ic 450*F.
Pressure (psia): 15.4 Manufacturer /Model: Endevco/7708-200 or 7705-200 Operating Ra nge */ Accuracy: 0 to 150 g's/iS% of full scale Additional Information: ,
Wiring is Teflon wire, overall stranded shield with Teflon jacket (24 AWG 2 conductors, 19/36 stranded jacket).
Wire shall meet fire protection guidelines NFPA803 and IEEE 383-1974. Additional equipment to be used in conjunction with the above accelerometers will be an Endevco remote charge converter Model 2652Mll and an Endevco signal conditioner Model 4479.1.
- The appropriate accelerometer full scale range for the test will be set by adjusting the gain on the Endevco signal conditioner to the proper value determined during shakedown tests.
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