ML18031A299

Forwards GKM-IIM Tests,Test Philosophy & Matrix & GKM-IIM Condensation Tests,Description of Measurement Concept. Repts Submitted in Response to NRC Comment 2 Issued at 790323 Meeting

ML18031A299
Person / Time
Site:	Susquehanna
Issue date:	10/25/1979
From:	Curtis N PENNSYLVANIA POWER & LIGHT CO.
To:	Parr O Office of Nuclear Reactor Regulation
Shared Package
ML18031A300	List: ML18031A299 ML19254D762 ML19254D763
References
840-2, NUDOCS 7910300106
Download: ML18031A299 (36)

Text

TO~L NU~RER OF COP TES RFOUIRED: LTTR 19 E~CL !9 RFGULATORY IIJFORMATION DISTRIBUTION SYSTEM (R TOS)

ACCFSSIO J NBR: 79103JJOTOf DOC.OA TE; 79/10/2~ NOTARIZFO: ~JO DOCKET a FACTL: usauehanna Steam Electric Stations Uni> 1i Pennsylva ngnOn3! 7 a Jsnuenanna Steam Electric Station> 1!nit 2, Pennsvlva n'i0003~B A JJ I ~ N4 i~LE A!3TH(JR AFFTL TA7[6N CU~TT p ~ .'J ~ Pennsylvania oo~er R l.ioht Co, RFC TP ~ ',JAME RECIPIENT AFF IL I AT TO,'J PARRiO.D. Light '!Jater Reactors Branch 3 SURJECT: Forwards "GKJ". IIM Tests~Test Philosophy JJ Matrix" F "GK'~

Tests~Description of Measurement Cnnceot ~

" II'ondensation Repts submitted in response to NRC Comment 2 issued on 790323 meeting.

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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEs t215) 821-5151 October 25, 1979 Docket No. 50-387 50-388 Mr. Olan D. Parr, Chief Light Water Reactors Branch No. 3 Director *of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, DC 20555 SUSQUEHANNA STEAM ELECTRIC STATION GKM-IIM CONDENSATION OSCILLATION TEST PROGRAM ER 100450 PILE 840-2, 172

Dear Mr. Parr:

Enclosed please find forty (40) copies each of two reports dealing with the GKM-IIM condensation oscillation tests being performed by Kraftwerk Union at the GKM facility in Mannheim, Pederal Republic of Germany. They are:

1. "GIGA-IIM Tests, Test Philosophy and Matrix" October 10, 1979, Adapted from KWU Working Report R 141/136/79

2. "GKM-IIM Condensation Tests, Description of the Measurement, Concept" KWU Working Report R 541/10/79.

These reports are submitted in response to staff comment number 2 issued on the March 23, 1979 meeting held with PPGL to discuss the GKM-IIM tests.

Very truly yours, 4u3Curtis N. W.

Vice President - Engineering S Construction DPR:dah P 8NN SYLVAN IA POWER 8 L I GH T COMPANY 79> OSOO / Gg,'

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Ply l as translated I'rito .E. N .G. L .I. S .H........

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& LIGHT COMPANY 3220 ALPINE ROAO, PORTOLA VALLEY ALlENTOWN, PENNSYLVANIA CALIFORNIA 84025 (415) 854-6732 4

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R 541 10 79 I

Working Report er o. ear ep .

I Title GKM-II-M Condensation Tests Karlstein ace, a e 11 A ril 7 Description of the measurement concept Schmid . R541 328 Kem Author f R522 Dept.

543 Tel.

Reference (e.g., Project, RGD Project): 2 Class

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Signature ll/ Classifier Ma 79 PPGL, SSES Units 1 and 2, CCOP Tests i 541-Sd/0000-876291 R

eno., re . no. ca egor no Summary Pages: 6 Attachments: For disposition

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by or for Under contract to the Pennsylvania Power 6 Light Company (PPGL), the KWU information/

is preparing transient condensation tests of the pressure suppression Time limits system in the Grosskraftwerk Mannheim (GKM). These tests will be per-formed in the modified GKM II test stand (single cell with proportionate drywell and suppression chamber at actual scale). The purpose of the tests's to verify the design of the pressure suppression systems of the Susquehanna l and 2 nuclear power plants.

The test stand is extensively instrumented. Two instrumentation systems are installed: operating instrumentation and test instrumentation.

The purpose of the operating instrumentation is to controle the test sequence and ensure- safe monitoring of the test stand. A process control computer is used for data acquisition.

The purpose of the test instrumentation is to collect all relevant data needed to evaluate the various phenomena. The measurement signals from the individual transducers are recorded on magnetic tape, light-spot line recorders and to some extent by the process control computer.

A survey of the instrumentation and its arrangement is g'iven in Zigures and Tables.

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illI.5 Authors'ignatures For ext. release Schmid Kem f Dr. Becker, R141 Sack, RF 32 16 May 7!

Distribution list listif2 (Add "z.K." only Summary for information):

Standard distribution of 15 May 79 Mr. Witt R541 Mr. Brunswick R522

'Hoffmann R541 PPGL 3x via RF 132 Flittner R541 Dr. Schweickert R5 Ehrnsperger R541 Dr. Schad R54

. Spengler R523 Mr. Stolben R522 For info. only Storb R522 Mr. Lohr R141 Zz'a fork Union COMPANY CONFIDENTIAL

Page 2

l. Introduction KWU is preparing in the GKM a test program for the performance of transient. condensa-tion tests on the pressure suppression systems of the Susquehanna l and 2 BWR plants.

A detailed description of the instrumentation, test set-up and test execution will be included in the Test Procedure which is being prepared for those tests.

The tests are performed in a rebuilt condensate accumulator. It conservatively simulates the smallest single cell of the pressure suppression system of the Susquehanna l and 2 plants. The volume of the proportionate upper annulus (drywell) is simulated by a mounted accumulator.

A replaceable standard orifice installed in the blowdown line simulates the postulated break cross-section of a main-steam line'r feedwater line. The "break cross-section" is released by means of a rupture disk combination.

This report gives a first survey of the instrumentation of the test stand, which is subdivided into operating and test instrumentation.

The purpose of the operating instrumentation is to control the test sequence and monitor the test stand. The test instrumentation ensures the recording of all data of significance for evaluation of the phenomena which occur during air-poor condensation.

2. Identification s stem for the instrumentation The measurement transducers are identified by a system of letters and numbers.

Each identification starts with a letter or letters describing the type of transducer:

P for Pressure Transducer T for Temperature Sensor (Thermocouple)

L for Water Level Measurement DG for Displacement Gage SG for Strain Gage I for Electrical Impulse Signal LP for Level Probe LC for Load Cell AF for Air Fraction OR for Oxygen Rate

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Page 3 Following these letters is a number which characterizes the mounting location or measurement location in 'the test stand. For that purpose, the test stand is divided imaginarily into different System Groups as follows (see Fig. 1):

System Group 1 contains transducers on the steam lines to the accumulator S6 and to the feedwater tank B 202 and in the feedwater tank B 203 System Group 2 contains the feedwater tank B 202 System Group 3 characterizes the steam accumulator S6 System Group 4 contains the steam supply'o the test stand System Group 5 contains the instrumentation of the proportionate drywell with the vent pipe System Group 6 characterizes the suppression chamber The System Groups 1-4 contain the operating instrumentation, while groups 5 and 6 characterize the test instrumentation.

After this identification number there is a decimal point which separates this number from the running numbers of the transducers.

3. eratin instrumentation The purpose of the operating instrumentation (see Tables 1 and 2, Figures 1, 3 and 4) is to monitor the steam accumulator, feedwater tank and steam lines. The signals from the measurement transducers are interrogated by a process control computer and recorded. This computer is a part of the operating instrumentation. All data are stored on magnetic tape and can be printed out or plotted after each test. Before test start> the process control computer compares the recorded measurement signals with prescribed setpoint values and prints them out. lf the measurement value differs from the setpoint value by a prescribed percentage, that measured value is identified in the printout.

The operating instrumentation concentrates on the measurement of pressures, temperatures and water levels in the steam accumulator, steam lines and feedwater tanks.

Page 4

4. Test instrumentation The test instrumentation (see Tables 3-7 and Figures 3-6) records all the data needed to evaluate the phenomena occurring during air-poor steam condensation and the resulting loads in the pool, and also the data needed to'etermine the steam flow rate in the piping. The dynamic pressure loads are measured at several points in the pool. The forces occurring at the vent pipe bracing and at internals in the suppression chamber and at its structure are recorded by strain gages or load cells. The pressure build-up in the vent pipe is measured at several points. In addition, Level Probes are installed at the vent pipe so as to be able to record the dynamic behavior of the water surface. Pressure and temperature measuring

,points in the air space of the suppression chamber and in the proportionate accumu-lator provide information about the variation of pressure and temperatuxe during the tests. Two differential-pressure measuring points in the water region of the suppression chamber record the air bubble fraction in the pool. At the upper end of the vent pipe there are two measuring points for determination of the air content of the steam, one measuring point fox continuous sampling, and one other measuring point for discontinuous sampling. The measurement system for continuous sampling is provided by SRI.. SRI

• is also providing assistance in the design of the second system.

The data is recorded on magnetic tape in analog form by means of carrier-frequency amplifiers and dc amplifiers. This ensures that high-frequency measurement signals axe recorded with proper frequency and amplitude. The data is reduced latex by a computer. Simultaneously with the recording on magnetic tape, most of the measure-ment points are also recorded on light-spot line recorders. That type of recording makes it possible to get a quick look at important measurement. variables shortly after each test. At the same time, a few selected transducer channels of the test.

instrumentation are recorded additionally at the process control computer. This procedure makes it possible to perform a quick and simple summary evaluation of that data after each test.

All the measurement channels run together at a measurement place which is located in an air-conditioned measurement container.

Each measurement chains consists of a transducer, connection cable, amplifier (carrier-frequency or dc amplifier), balancing unit and recording unit (see Fig. 7).

• Stanford Research Institute International

Page 5 The utilized pressure transducers have a measuring diaphragm and a foil strain gage system which'is directly connected to the diaphragm. All pressure transducers in the water region of the suppression chamber have an exposed measuring diaphragm with direct contact to the surrounding water. Earlier studies by KWU have shown that this type of transducer is best suited for recording higher-frequency pressure oscillations with correct frequency and amplitude.

For the pressure measurement in the lines which carry steam, the measuring diaphragm has to be protected from the hot steam. That is accomplished by means of a short water-filled pipe which connects the transducer to the measurement site.

The transducers are connected to the measuring amplifiers by shielded cables.

Carrier-frequency amplifiers providing a frequency resolution of up to 1 kHz are used for the strain gages, displacement transducers and pressure transducers.

DC amplifiers with a 10 Hz low-pass filter are used for the temperature measurement.

5. Filmin of the rocesses in the ool The processes in the water region of the suppression chamber are recorded optically on film by a high-speed camera and on video tape by a television camera.

The cameras are mounted outside the tank and observe the processes by means of bull's eyes. Several underwater searchlights are installed in order to ensure satisfactory lighting of the end of the vent pipe.

A uniform electrical reference signal ensures time correlation between all the data acquisition systems.

Page 6

6. Note The following additional abbreviations are used in Tables 1-7.

DPS Data Processing ~S stem CTC Coated Thermocouple DCA Direct Current Amplifier Carrier Frequency Amplifier HT-SG High Temperature Strain Gage PG Pressure Gage RTD Resistor Temperature Detector

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Tr. note: The column headed "Transducer Dates" should read "Transducer Data". This is an incorrect translation by KWU of the German word nDaten", which can mean either "dates" or "data" in Englisht KWU GKM H- M - Condensation Tests Date 4/11/79 R 541 -Operating Instrurnentation Transducer Dates Recording Ploce Transducer Measuring - Point Marking Measuring - Locution Type Measuring Stock-No. Measuring DPS Control Test Figure Ran e Am tifier Channel Station Facilil Pressure in tho superheated steam line to thc PG with P romoto 25 bar 20 mA 1 ~ 1 stoam line steam accumulator sensor P 1 ~ 2 main steam line P 1~ ) Pressure in the feodwatcr tank feedwater tank B 20$

P 2,1 fcedwater tank B 202 50 bar CFA P 3el Pressure in thc stoam accumulator, stcam zone Barton bar L 3~1 Water lovel in tho stcam accumulator cell 2 20 mA L A+2 0.2 bar 20 mA Water L 3.3 Qago SG P 4~1 Pressure .in the blowdown line complete 50 bar CFA before throttlo nozzle bridQc Pressure in tho blowdown line PG with remote 25 bar 20 mA before the rupture discs sensor P A.5 Pressure bctvccn the two rupture cKecs Temperature in the superheated steam linc to the T 1~1 stcam line steam accumulator CTC 550 C DC A T 1 ' main steam line C T C 400 c

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KWU GKM II- M- Condensation Tests Date 4/11/79 R 541 -Operating . Instrumentation-Transducer Dates Recording Place Transducer Measuring - Point Marking Measuring - Location TYpe Measuring Stock-No. Measuring OPS Control Test Figure Ran e Am lifier Channel Station Facilit T 1 ~ 3 Tenporature in the fcodvatcr tank feeduater tank 9 203 CTC 300 C DCA T 2ot fooduator tank 9 202 T F 1 Tonporature in tho stean accunulator, stean zona T 3~2 Toaporatur o in the stean accunulator, u vator zone Touporaturo for tho correction of T 3~3 the water lovel noasurouont in the stean accuaulator T 4.1 Teuporaturo in the blovdown line I before tho throttle nozzle 00 I

T 5' Toaperaturo in tho dryuoll,at the wall 1 ~ 3 ~4 Barton

l. 6.1 llator level in tho suppression pool cell 2 bar Oo ~ ~ 20aA X 3,4 b 6.2 Vator level in the annulus gap 3,4

l KWU GKM II-M-Condensation Tests Date R 541 Test Instrumentation 4/11/79 Measuring Location Tr'ansducer Dates Data Recording Transducer Measuring-Point Marking Level Angle TNe Measuring St ock-No. Measuring DPS Visi- Magnetic Figure H (mm) Range Amplifier Channel corder Tope Strain in the. tank wall, SG SG 6 ' outside,vertical 265o 90 semi 6000/iu/n CFA bridge Sc 6.4 Strain in the tank wall, 265o outside,horirontal 90 sc 6.5 Strain in tho,tank wall, ou t si do, vert Ical 265o sc 6.6 Strain in the tank wall, outside,horizontal 2650 sc 6.7 Vertical bending strain at 1100 the quencher dunay 270 SG 6 ~ 8 llorizontal bending strain 1100 270 nt tho quencher douay Sc 6 ' Vertical handing strain at the legs of the test vessol sc 6.1o Vertical bending strain at the legs of the test vessel 90 Displncenent of the bottou inductive PG 6.1 of the inner cylindor center semi brldgo OG 6,2 Displacenent of the inner 10000 270 oG 6,4 cylinder at the crossing place 90 0G 6,3 Displacencnt of the inner 0 cylinder at the crossing place 10000 oc 6.5 180 Dc 6.4 Displacenent at the stiffening ring 6o9o 90 Tenperaturo in the suppression T 6.1 pool, water xone b 6800 180 CTC 300 c DC A T 6.2 5200 180

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KWU GKM Ij:-M-Condensation Tests Date R 541 - Test Instrumentation 4/11/75 Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle TVpe Measuring St ock-No Measuring DPS Visi- Ma g net iC Figure H tmm) Range Amplifier Channel corder Tape

' Temperature in the suppression T 6 pool,vater xone 3650 180 CTC 300 C DC A T 6A 265o 180 T 6.7 1100 180 T 6.8 center T 6.g Tcnperaturo in the suppression pool,air xonoytop 14100 270 u 6.1o Tesperature in the supprossion T

pool,air xone,bolov 8oio 270 i>5 4.1 Prcssure in the blovdovn line SG P

before throttle noxxle complete 50 bar CFA bridge hP 4 ~ 2 Difforential prossure at tho throttle noxxlo 35 bar hp 4.3 Darton coll 20 nA T 4.1 Tcnperature in the blovdovn line before throttle noxxle C T C 300 C D C A Dynaeic pressure in the stean Piezo-P 3~2 electric 20 bar Charge accunulator,vater zono amplifier transducer SG P 5+1 Pressure in tho dryvoll complete 20 bar CFA bridge P 5~2 Pressure in the dovncoser pipe,top 15550 270 10 bar P 5 ' Pressure in the dovnconor pipe,middle '1058070

KWU GKM H-M-Condensation Tests Date R541 Transducer P 5 '

Measuring -Point Marking Pressure in the downconer pipe, below Level Test H (mm) 7300 Angle 270 Instrumentation Measuring Location T'/pe SG coaplote Measunng Range 10 bar

'l Transducer Dates ock-Na Measuring Amplifier C F A Data Recording DPS Visi-Channel corder 4/11/79 Ma g net IC Figure Tape bridge P 5 ' Pressure in the downcoacr plpo,oxlt 3750 270 ap 5.6 Prcssure dlffcrcntial bctwccn dry-woll and suppression chanbcr 3,5 bar on 5.1 oxigene rata in the downcoaer pipe 15550 270 OA 5+2 15550 270 Indication of the swing chock 0G 5 ~ 1 valve betwoen drywall and CF A suppression chaaber DG 5~2 T 5+i Toaperature in the drywall,top CTC 300 C DC A T 5~2 Tcaperature in the drywall,below 5+3 Tcnpcraturo in tho drywell,sunp T 5+5 Tcnpcrature in thc downconcr pipe,middle 10500 270 T 5.6 Tcnpcrature in thc downcoser,exit 3750 270 Prcssure at tho suppression pool SG P 6.1 wall,water xone 6150 I80 cooplcte 10 bar CFA br idge P 6 ' .4 I50 180

KWU GKM II-M-Condensation Tests .Date R 541 - Test Instrumentation 4/11/79 Measuring Location Transducer Dates Data Recording Transducer Measuring -Point Marking Level Angle TVpe Meas wing St ock-No Measuring DPS ViSI- Magnehc Figure H (mm) Range Amplifier Channel corder Tape SG 6.3 Prcssure at the suppression pool couplote bar P

wall, water xono 3650 180 10 C P A bridge p 6.4 265o 180 p 6.5 265o p 6.6 265o 90 P 6.7 1100 IBO p 6.8 center P 6.9 Pressure in,the suppression 14100 270 20 bar chanber,air xone Air fraction in the suppression AF 6 ~ 1 chaober,water xone 4150/6150 180 3,5 bar AF 6 ' 26 50/6150 180 Vatcr lovel in the downconer pipo spark CA LP 5 ~ 1 3750 90 D plug LP 5 ' 4o5o 90 Lp 5 ' 445o 90 Lp 5 ~ 4 615o 90 LP 5 ~ 5 7950 90

KWU GKM H-M-Condensation Tests Date Test 4/11/79 R 541 Instrumentation Measuring Location Transducer Dates Data Recording Transducer Measuring-Point Marking Level Angle TVpe easuring ock-No Measuring DPS Visi- Magnetic Figure I-I (mm) (0) Range Amplifier Channel corder Tape Sg SD 6.1 Longitudinal strain,gracing 1 6090 0 complete C F A 5,6 bridge SG 6 ' Longitudinal strain, gracing 2 6090 90 9,6 Loads duo to the notion of the piano Charge LC 6 ~ 1 water surface 6300 270 olectric asplifier transducer LC 6 ' 6300 270 I

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Legend:

H

-Remote steam 20 bar, 800aC

-Heating steam 20 baz, 400aC r'5 D -Process steam, saturated steam V -Vater, toom water K -condensate Remote steam Ferndam f 20bar 300 C DN 250 P .1 T41 ON 300 P 4.4 Cl Nitr'ogen D4 06 ON 300 Vl A6 St ick ON Cpp ONr 00 ON20

- stoll oEA g 05 o Pl I-DNtoN'2 L4 z z F1 F6 A2 A3 F7 A4 O O D3 A1 P1g P4.5 DNIO T5.1 E9 ap4.2 E10 F2 Ee

~ P2.1 tez tank eedbfater tank l E1 D

DNcop Cp

>>iY wi Y 50 uJ C1 o

Speisewasser-behi3ller ~ Speisewasser-behaller ~

A cumuE L2 z 8 202 8203

~Entspanner ipeicher O 0 ZLa h tank S3 I v( o lV Ci Cl T 2.1 T 1.3 DN20 DN 25 DN25 o 0 z Pl CL T5.2 0 0 R O o o

Q T 5.3 O DNZO S4 ci 07 S6 S Q S2 tQ (A ON20 DNSO DN250 Q 0 o rV z D1 0 T 6.9 o z

ON20 BN Coo DN 350 S9 O T3,1 P 6.9 S 0 E7 P3.1 DNloo Speiche Ci S6 Ci E2 E3 E5 T6.10 YYYY SQtor'2T 3.3 Accumu- DN250 R O

N z

O rV z

O T5.6 Condensate l<1 ttf UJ Kondensat 20 bar tpP'C P11 T1.1 DN 250 L3.1/2/3 cn DN250 H1 YYY Heipdam f 20 bar CotPC DN 400.

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n L6 uper ea e s earn ON 6S DN20 e et ri ebsdruck tult P 3 DN 20 o I T6.8 g- E 21 Oper'ating T 3.2 E18 ON 65 sur'ised DN 80 t.egende:

F --- Ferndnmpl E22Dppaiz 0 lpp E19 H -- - Heizdompl 20bnr, 300'C 20 bar r C004C 0 DN to N 0-- -prozep- . Sottdompf E20 W--- ttlosscr, Stodtwosser Abwassersammetschiene Y K--- Kondensal Paste-bloater common header

15 Kraftwerk Union R 541 O R 541/10/79 CD 4 3600 lA P)

CV CD CD QD 43000 CD CD U3 Rohr 609,6x10 CD .

4 2160 C) lA CD (V

CV CV CD LA CO P)

I 4 3780 GKM II-M-Condensation Tests Tesf Tank Fi .2

Kraffwerk Union R 541 R 54i/iO/79 T 5.1 I-P,5.1 T 5.4 T 5.2 T5.3 B PS.6 OR OR

5. S.1 P5.2 T6.9 P6.9 I T5.5/P5.3 L6.2

.P S.L L6.1 T 5.6/PS.S Legend: P Pressure transducer Dummy Quencher T Temperature transducer

+Om L Water Level OR Oxygen Rate 2700 90o Bull's eye 180o GKM II -M Condensation Tests Coordinate System and Test Instrumentation Fig. 3

Kraffwerk Unson R 541 a 54</Zo/79 Legend: P Pressure transducer T Temperature transducer L Water Level T 5.1 OR Oxygen Rate I-P 5.1 T 5.4 O

O T 5.2 O P O

O O O O O O T5.3 O CV a DP5.6 OR OR S. 5.1 P5.2 T6.9 r

P6.9 T5.5 /PS.3 O

IQ L6.2 CA IA P 5.4 O

CO L61 a O T56/PS.S 0 O

+ SG6.9 S G 6.10 GKM II-M-Condensation Tests Test Instrumentation

>> 18- Kraftwerk Union R 5l1 Legend: P Pressure transducer R 54i/i0/79 T Thermocovple LP 55 DG Displacement Gage LP Level Probe LC Load Cell SG Strain Gage AF Air Fraction O

O O LP 5.4 lO C3 DG 6.2 DG6.4 O DG 6.3 DG6.5 O LP 5.3 Ol O

LP52 O P 5.5 o CO O

o 1

T6.1 0 LP Si5 LC 6.1/2 T6.1 O LP5.4 I

O DG6.4 O

O G6.1/SG6.2

~TT 6.2 O

T AF O 6.1 LP5.3 co AF P6.2 6.2 LP52 O O

O O P5.1 ;P6.3/TK3 C) 0 T5.6 lo 6.3/SG6.4 O G cSG6.5/SG65 oo o O

~P 6.4/P65/P6.6 T6,4 O ln O O O ln ln SG 6.7 N SG 6.8 P 6.7 SG6.7 T6.7 o O

DG6.1 Section A-B P 6.8 00 T 6.8 horizontal,S G6. I P66 vertical,SG6.6 I- Beam GKM II -M-Condensatipn horizontal 270O SG 6.3, 90~ TpgtS

'66 Test Instrumentation P 6.1 ... P 6.4, P 6.7 AF61/AF62 i

160o T6.1...T64.T 6.7 Fig. 5

Kraftwerk Union R 541 R S4</aO/Ve 00 SG 6.1 Bracing 1

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270o 90 Bracing 2 GKMII-M-Condensation Tests Bracing Configuration Fig.6

Tape Recor der 1 2 3 4 5 6 7 8 9 1011 1213 14 Sensor 1

2 2 L 2 0

3 3 Cl 3 4 4 C 4 S

5 5 5 6 6 6 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 Correlation Si nal 13 Reference Si nal 14 Data Recording: Schematic Block Diagram'

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-2i- R 54 LEGAL NOTICE This document was prepared as a result of work sponsored by Pennsylvania Power 5 Light Company (PPM.)

and performed by Kraftwerk Union Aktiengesellschaft (KWU).

Neither PPM nor KWU, nor any person or firm acting on behalf of either:

ao Makes any warranty or representation, express or implied, with respect to the accuracy, com-pleteness, or usefulness of the information contained in this report, or that the use of any information, apparatus, method, or process disclosed in this document may not infringe privately owned rights; or

b. Assumes any liability with respect to the use of, or for damages resulting from the use of, any information, apparatus, method or process dis-closed in this document.

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3 Kraftw'erk Union

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