p w,.cczx,er~v~d j. srmhvrrox duomo h.anox svsrcmp-ep's final test report will be reviewed by...

P

W,.CCZX,ER~V~D j. SrmHVrrox DUOMO H.AnOx SvSrcMREGULAT INFORMATION DISTRIBUTION STEM (RIDS)

ACCESSION NBR:9210200148 DOC.DATE: 92/10/09 NOTARIZED: NOFACIL:50-275 Diablo Canyon Nuclear Power Plant, Unit 1, Pacific Ga

50-323 Diablo Canyon Nuclear Power Plant, Unit 2, Pacific GaAUTH.NAME AUTHOR AFFILIATION

RUEGERgG AM Pacific Gas & Electric Co.RECIP.NAME RECIPIENT AFFILIATION

Document Control Branch (Document Control Desk)

DOCKET0500027505000323

SUBJECT: Forwards documents re purchase a dedication of sixth EDG,toaddress open items discussed during 920601-05 insp at utilofcs in San Francisco,CA,consisting of Rev 0 to Post-ModTest Procedure PMT 21.16, "DG 23 Preoperational...."

DISTRIBUTION CODE: AOOZD COPIES RECEIVED:LTR 2 ENCL L SIZE:TITLE: OR Submittal: General Distribution

D

0NOTES: $~~ /Pgp~gy

RECIPIENTID CODE/NAME

PD5 LAROOD,H

INTERNAL: ACRSNRR/DOEA/OTSB11NRR/DST/SICB8H7NUDOCS-ABSTRACTOGC/HDS1RES/DSIR/EIB

EXTERNAL: NRC PDR

COPIESLTTR ENCL

1 12,2im< e!!

1 11 11 01 1=-'

1

RECIPIENTID CODE/NAME

PD5 PD

NRR/DET/ESGBNRR/DST/SELB 7ENRR/DST/SRXB 8EO~aa~REG FILE 01

NSIC

COPIESLTTR ENCL

1 1

1 11 11 11 01 1

1 1

D

D

S

R

IA

NOTE TO ALL "RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK.ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME FROM DISTRIBUTIONLISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 22 ENCL

kA 4P

r, 11

~ t)~~k ~

Pacific Gas and Electric Company 77 Beate Street

San Francisco, CA 94106415/973-4684

Gregory M. Rueger

Senior Vice President and

General ManagerNuclear Power Generation

October 9, 1992

PG&E Letter No. DCL-92-218

U.S. Nuclear Regulatory CommissionATTN: Document Control DeskWashington, D.C. 20555

Re: Docket No. 50-275, OL-DPR-80Docket No. 50-323, OL-DPR-82Diablo Canyon Units 1 and 2Transmittal of Documents Related to Purchase and Dedication of theSixth Emergency Diesel Generator

Gentlemen:

This letter transmits documentation associated with open items from theNRC inspection conducted June 1 to June 5, 1992, at PG&E's offices inSan Francisco for PG&E's purchase and dedication of a sixth emergencydiesel generator (EDG).

Enclosure 1 provides a copy of the documentation issued to specify thesixth EDG post-modification test (PHT) requirements and the approved PHT

21. 16, "Diesel Generator 2-3 Pre-operational Endurance Test." PHT 21. 16provides the detailed testing requirements as discussed with the NRC

during the inspection. In addition, to address open items for thegovernor, PHT 21. 16 incorporates visual inspection for loose parts andsolenoid valve nut epoxy. To address open items for the generator, PHT

21. 16 also incorporates visual inspection of insulating bushings,insulating material, and lead-to-coil terminations and visual inspectionof welds on bearing brackets, threaded rods/studs, rivets, and lugs onthe rotor pole spider end rings.

Enclosure 2 provides documentation associated with PG&E gualityEvaluation (gE) 90009781, which documents resolution of (1) verificationof accuracy (linearity) of the current transformer discussed in theexcitation panel current boost transformer Replacement Parts Evaluation(RPE) E-6795, (2) potential setpoint drift for the sixth EDG components,and (3) the impact of maximum EDG room ambient temperature on the sixthEDG electrical components qualified by their respective RPEs.

Enclosure 3 provides a copy of Action Evaluation 5 to Action RequestA0266483, which addresses the resolution of anomalies identified duringseismic testing of the Crosby relief valves used on the air start andturbo air receiver tanks. This information is provided to close out anitem identified by Hr. J. Rajan during his review of the seismicqualification of the sixth EDG and its support equipment.

The only sixth EDG inspection activities remaining open, subject toreview of the attached documentation, are (1) completion of the designchange/equivalency review by NEI Peebles - Electric Products, Inc.

(9210200348 92i009

, PDR* ADOCK

P PDR

S'

H

l

Document Control DeskPG&E Letter No. DCL-92-218

October 9, 1992

(P-EP) for the generator, (2) revision of RPE E-7505 for the generator toreflect incorporation of the results of this review, and (3) successfulcompletion of the pre-operational endurance test. The test results for thelightly varnished wire used in the rotor pole magnet have been received byP-EP, and a preliminary review of the test results indicates that the wire issuitable for use in the generator. P-EP's final test report will be reviewedby PGEE, and the results will be incorporated into RPE E-7505.

The current schedule for the 200-hour endurance test reflects start of thistest in early December. This schedule is subject to change based oninteraction of the sixth EDG testing with the ongoing Unit 1 fifth refuelingoutage. Updates to this testing schedule will be provided to Mr. SteveMatthews and Mr. Dyle Acker in order to aid in scheduling further NRC reviewduring the endurance test.

If you have any questions regarding the attached documentation or the openitem status summary, please contact Alan Nicholson at (415) 973-9654.

Sincerely,

cc: Ann P. HodgdonJohn B. MartinPhilip J. MorrillHarry RoodCPUC

Diablo Distribution

Enclosures

5876S/85K/ALN/2054

PG&E Letter No. DCL-92-218

ENCLOSURE 1

Field Change H-16128, Revision 0, for DC2-EH-44405

Post-modification Test 21. 16, "Diesel Generator 2-3Pre-operational Endurance Test"

'9210200148I

5876S/85K

e ~ rer

~*

e

~ wh e, Ye o'uwuun eAY4'5'Av

nuL'eeocProcedure',3.6 DC,Attachment'-QPage 1 of~'l

2'wA

A'Iq ep 'uckvebsnvAhh'61. '9M u u Nj

r

DCPgDCN NO. ~Z EP1 [ l f 05 REV ~PC NO': l Z . REV.:~

SUPERSEDING: (] YES g] NO FC NO.:

SAFETY RELATED: fg] YES ] NO [ ] NO, BUT GRADED QA

riginator/Datev-8a-FZ

Group Supervisor/Date

"NN'K4Y(."'„-'CPP

Review/Date

D SC 0 0 0 OSED CHANGE: (Provide complete description includingmarked-up sketches, drawings, and pages from the DCN/DCP)

j[ Jd jest Aalu> rc Hd e [e'ts as wefsiled'ino,itDchudt gfgp ( ( Q~ v (4 g 3 7Q ) . 0 A s'c~A. lPW —4-4C- 5 I [+< >(~+<~ ~>+~i

4C-.C~[ 4 ~c -1' <~r sy<>/~~p. R~..;4I De ~ A ~ L ~(f.kt ~ice~ bLku Ce'-A. A.f u eSee.l.'e< aS f 4~Vue wC i 4 ~X Cq C C-C I en. ~

REASON FOR OPOS D CHANG

Whl 5 lr, ffsB"& 8 7/OH ~a> gO7 gne/u Jezy ~~ PBP-6 O g Mh ~Pact e~df Ef ca,i-i's)Pegurreee~y>.

ENGI EERING A P OVAL SECTIO: The proposed change is considered to be withinthe intent of the DCP and does not conflict with any statement or requirementof the DCP Eval~~tion Package.

'V'p'q C 'f 'leT

APPROVED: [~ APPROVED SUBJECT TO NOTED CHANGES: [Vf DISAPPROVED: [ [

Se e- ~+e~en V e%REHARKS: (Include lnformaclon on 7oordlnacfon and calculaclone lf requiredto j ustify acceptance or note reason for disapproval.)

ee ee wwww ww&

APPROVAL COORDINATIO:l

Discipline Engineer/Date S igna ture/Disc ip1 ine/Date

Engineer ing Croup Supervisor/Date Signature/Discipline/Date

Proj ect Engineer/Date S igna cure/Disc ip line/Date

DCPP Review/Date Signature/Disc iplinc/Date12 - 9/21/90

hBLO CANYONGE

DCP/DCN NO.: ) 2 — 1I RNV:~FCSUPERSEDING: [ ] YES [ ] NO FC

NUMBER NECS-E3.6 DC ",- REVISION . 0

ATTACHMENTPAGE ~'$ -),2

NO.: -/ Z ~.: C

NO.:

SAFETY REIATED: [ ] YES [ ] NO [ ) PARTIAL [ ) NO, B RADED QA OR OTHER

Originator/Date Dis pline Supervisor/Date

Group Supervisor/Date DCPP Review/Date

ESCRIP ION OF PROPOSED CHANGE: (Provide complete description includingmarked-up sketches, drawings, a pages from the DCN/DCP)

EASON R PROPOSED GE

ENGINEERING P ROVAL SECTION: The proposed change is considered to be withinthe intent of the DCP and does not conflict with any statement or requirementof the DCP Evaluation Screen/Package.

APPROVED: [ ) APPROVED SUBJECT TO NOTED CHANGES: DISAPPROVED: [ )

REMARKS: (Include information on coordination and calculations if required tojustify acceptance or note reason for disapproval.)+ie peeK g c eR c« crt<~-%eP c«K 6+g<c85 >Cpu pegt E'~g«<eer> e< g hi(g~/Z~ ~ ff fjg~ ZNp <NE'8v f~ 3)g

EVALUATION ZZP X tl<+<)sZ-

Discipline Engineer:Name/Si ture/Date sciplin ngineer:N e Si ature/Date

APPROVAL COORDINATION/~ O//Z/f Z

gg. G . Su vr :Name/Signature/Date Name/Signature/Discipline/Dare

o +Project Engineer/Date Name/Signature/Discipline/Date

DCPP Review/Date Name/Signature/Discipline/Date

~ w ~~ ~ '0 vent, ( %++% <'(AKY(wklyNvr'q j+,ivAYvg%~ 'Av~+ 'iver%'41vA+%644 6+ 'pw )~t $ Nv<Y l 30PPrk j%A'c'cfPQ&fxcAL

> ~ ~ ~ ~

POST MODIFICATION/FUCTIONALTESTS

pl 4 -lb/2 5':

PiP 3cg IK

1. Startup tests required by the various DCNs in DCP M-44405 andDCP M-46799, with the exception of CO-2 system and roll-updoor tests, and in addition the preoperational checks on thelube oil, fuel oil, starting air, turbo air assist and jacketwater systems should be completed prior to starting thesetests.

Note: Ensure that the engine lube oil prelube pump and heaterand the engine jacket water heaters are operating wheneverthe engine is between tests. As modified by the attachedmanufacturers letter, Chron 5190058.

2. Manufacturer's recommended break-in testing, GE TestProcedu e 50D77481, CN-50525, 91-05-07, sections 3.6, 3.7,3.8, and 3.9 should be performed before beginning any otheroperational testing. The testing procedure will bereformatted into PMT format.

Note: There were problems encountered with the KWS relayoperation during system testing at the vendor's shop inToronto. It would be prudent to obtain the services of aBasler representative when performing the testing ofsection 3.8 of the vendor's test procedure. The problemsencountered would not have affected the Safety Relatedfunction of the diesel generator system, but rather, wereproblems in the control and actuation of the turbo airassist valves during assumption of large loads.

3. At a .minimum, the following testing shall be performed:

Note: Tests may be performed in any order although 3.i) shouldbe performed as a prerequisite.

a) Multiple start tests. With the compressors for Air Startand Turbo Air Assist isolated and the air storage tanks attheir normal full capacity, record all start attemptsuntil DEG 2-3 can no longer start. Record time to startand pressure in all tanks for each start as well asinitial conditions. Parameters to be recorded are forinformation, i.e., the diesel does not have to start in 10seconds.

b) Repeat a) above for each Air Start receiver separatelywith and without Turbo Air Assist (total of 4 tests).

c) With compressors isolated, perform three (3) 15 secondcranking cycles, without starting engine, to verify sizingcriteria described in FSAR for air receivers has been metin the final system configuration. Record pressure in thetanks before starting and after each cranking cycle. This

Revised Version of Chron f188370

will require defeating the engine overcrank timers in thecontrol panel. At the completion of this test, start thediesel and record start time and remaining pressure in theair tanks. This is not required to be a 10 second start,but is for information only.

d) Perform Starting tests as defined by IEEE 387-1984 Section6.3.1. These tests include timing starts for air startvalve individually and in combinations, with and withoutturbo air assist. The starts w/o Turbo Air Assist are forinformation and are not required to meet 10 secondstarting requirements. One air start motor, 2 A/S motorsand 4 A/S motors, with and w/o Turbo, for a total of 6tests.

e) Perform Load acceptance tests as defined by IEEE 387-1984section '6.3.2. As much as is possible, this test shouldbe performed using the load banks.

f) Perform rated load tests as defined by IEEE 387-1984,section 6.3.3.

g) Perform Load rejection tests as defined by IEEE 387-1984,section 6.3.4. Short time rated load is defined as 110:of full generator load.

h) Perform Electrical load tests as defined by IEEE 387-1984,section 6.3.5.

i) Perform subsystem tests as defined by IEEE 387-1984,section 6.3.6. Subsystems are as defined bysection 7.5.1.4.

j) Perform the Load Capability tests as defined byIEEE 387-1984, section 7.2.1.

Note: After performing the next step, all future starts willcount as start attempts and must be recorded and evaluatedif failures occur. Therefore, this test should beperformed after all testing with the possibility ofrequiring changes has been completed.

k) Perform Start and Load Acceptance tests as defined byIEEE 387-1984, section 7.2.2, Reg Guide 1.108 Rev. 1, andDraft Rev. 3 of Reg. Guide 1.9. A total of 23 validstarts is required, in lieu of the 300 called for sincethis is not an initial type test. All starts will meetthe requirements of subsections 1, 2, and 3 of 7.2.2 ofIEEE 387-1984. After each test, it is required that theengine be cooled down to a maximum of 110 'F in the LubeOil system. When engine is started it should pick up asingle load equal to or greater than 50: of rated load and

Revised Version of Chron 4188370

then continue to run until it reaches 170 +/- 10 degreesFahrenheit. It may be necessary to increase load above50% to reach 170 F. An additional three starts shall beperformed in accordance with section 7.2.2.4.

l) Perform Margin tests as defined by IEEE 387-1984,section 7.2.3.

m) Perform start, load to 110% gradually, and run for onhour, with the priming system fuel oil solenoid valveblocked and verified open, and the throttling valve on thereturn to the priming tank fully open. The acceptancecriterion for this test is that priming tank level muststay constant or rise during the test. This test is beingperformed with the express intention of verifying that thefuel oil solenoid valve and the throttling valve can beeliminated from the system.

Note: If the priming tank overflows, it is directed back to thedaytank.

n) Two hundred hours of full load endurance testing. Thistesting may be able to be combined with the 23 starts.The 200 hours may be performed as discrete segments or ason continuous run. One hour in eight will be performed atfull load minus the largest step load. This load isapproximately 600 kw. At the end of the 200 hours, thelast 2 hours shall be at 110% load. This endurancetesting is a commitment to the NRC as part of thededication of the engine generator set.

o) Perform heat balance and flow balance testing of thejacket water system, at the direction of GE-ALCO. If thistesting is required, GE-ALCO will provide procedure andacceptance criteria.

Note: It is suggested that GE-ALCO representatives be on handfor critical portions of testing, such as final alignment,break-in testing, and the above. heat and flow balancetesting. Contact NECS-GO Engineering to make arrangementsfor GE-ALCO, and Basler representatives.

Revised Version of Chron f188370

; .. ~ ~ ", "i ~ i p wi ~' ~ ii ~ ~ ~' ~ n4 ~'~NiiAib)wv ibhveN'cwvaoco~xvxxveeiv kv 'b%,'' I~ ~4~. pyb, "~ .4'L 1.'(j'~h 'L95%4CNgg 4'C

1

o XSOOS8"

GE locomotivesCanada

Cfnfreie tleeIiique du Cenede Inc.1505, rue DicksunMuntrfel!Dufbeel HIN 2H7

'5I4253 2333 rk'562864IFee 5!42532334

May 13, 1992

Daniel HardestyPacific Gas & Electric333 Market street A7070San Francisco, CALEA94106

Daniel;

Next to our telcon of May 12, you will find enclosed the answer of your 4 questionsin regards of the pre-lube oil system.

Question ¹1: Does the engine pre-lube oil system need to operate prior to barringthe engine over?

Yes, to protect the engine bearings it is a prudent action to assure that they receiveadequate lubriTication at a temperature high enough to coat the bearings. The minimumtemperature per the vendor manual is 70 deg. F and for a period of one hour would besufficient

Question ¹2: Does the engine pre-lube oil system need to be in operation during thebarring over of the engine?

No, but it would be prudent to repeat the prelube operation for approximately 10minutes, once per hour during the course of the aligment checks. If the room airtemperature is sufficiently below 70 degrees it may make sense to leave the pre-lubesystem operating because of the time required to heat the oil.

Question ¹3: Does the engine pre-lube oil system need to be in operation during thetime after the barring over of the engine and the beginning oftesting?

Not continuously, however, the represervation of the engine lubrificating oilsystem will be required if the prelube system is not operated periodically. Operation ofthe system twice a week for a period of one hour after reaching the minimum temperaturewould be satisfactory to maintain the system.

RECEIVED

MAY 1 8 1992I' S

eytttl> cow".cl ctHtt

Question 44: Does the engine pre-lube oil system need to be in operation betweentesting cycles?

As above, operation of the system twice per week and immediatly prior to startingthe engine would be sufficient.

Regards,

Stbphane Marchand, P. Eng.

SM/sm

Martin LuSylvain Champoux

(

CORRELATION OF SITE PRE-OPERATIONAL TESTINGTO SIXTH DIESEL DEDICATION ACTIVITIES

Implementing Document: Design Change Package DCP-M-44405

In order to clarify the relationship between the Pre-Operational Startup Testing performed for the SixthDiesel Assembly per this Design Change Package (DCP) andthe Dedication of Commercial Grade subcomponents of theSixth Diesel in accordance with component specificReplacement Part Evaluations (RPE), the followingtabulation of system and specific component CriticalCharacteristics is provided. Note that these are NOTVerification activities, only clarification. Per PGSEProcedures, Dedication Activities can only bespecified/implemented per an RPE, not a DCN.

GENERIC CRITICAL CHARACTERISTICS OF THE SIXTH DIESEL ASSEMBLY

Critical Characteristic: Available within a timeconsistent with the requirements of ESF or shutdownsystem loads under normal and accident conditions. (DCMS-21 4.3.l.c)How Verified: IEEE 387 Testing,

Acceleration Test, DeadLoad Pickup Test,Starting Capacity Test.

Acceptance Criteria: Starts and accelerates to ratedspeed and voltage in less than 10 seconds. (FSAR8.3.1.1.13.2)

2. Critical Characteristic: Capable of supporting ratedload required to provide power to operate the requiredESF systems to mitigate a design basis accident (LOCA).(DCM S-21 4.3.1.h)How Verified: IEEE 387 Testing, Rated

Load Test, Dead LoadPickup Test.

Acceptance Criteria: Stable operation at rated load of2600 KW.

~ < ~

FC.- Q-ISIS 9 .-qo9 f~

Critical Characteristic: During recovery from transientscaused by disconnection of the largest single load, speedis maintained. (DCM S-21 4.3.1.1 and 4.3.4.d)

How Verified: IREE 387 Testing, RatedLoad Test, Load RejectionTest, Dead Load PickupTest, R.G 1.9 Testing and23 Starts.

Acceptance Criteria: Speed does not exceed 75% of thedifference between nominal speed and the overspeed tripsetpoint or 115% of nominal speed, whichever is lower.

Critical Characteristic:during load sequencing.4.3.4.c, and 4.3.4.e)

Nominal voltage is restored(DCM S-21 4.3.l.k, 4.3.l.m,

How Verified: 1EEE 387 Testing, RatedLoad Test, Load RejectionTest, Dead Load PickupTest, R.G. 1.9 Testingand 23 Starts.

Acceptance Criteria: Voltage is within 10% of nominal inless than 40% of each load sequence time interval, noless that 75% of nominal voltage during loading.

Critical Characteristic: Nominal frequency is restoredduring load sequencing. (DCM S-21 4.3.1.j, 4.3.l.n,4.3.4.c and 4.3.4.e)How Verified: IEEE 387 Testing, Rated

Load Test, Load RejectionTest, Dead Load PickupTest, R.G. 1.9 Testingand 23 Starts.

Acceptance Criteria: Within 2% of nominal in less than40% of each load sequence time interval, no less than 95%of nominal during loading.

!

Fc ~.-l>i~>.(o sf l~

COMPONENT SPECIFIC CRITICAL CHARACTERISTICS VERIFIED BY INTEGRATED'TESTING SUPPLIER OR PGSE

COMPONENT: Aux Air Controller REFERENCE RPE: E-6797

1. Critical Characteristic: Integrated System Operation

How Verified: IEEE 387 Testing< Rated Load Test, LoadRejection Test, Acceleration Test, Dead Load Pickup Test.

Acceptance Criteria: Starts and accelerates to ratedspeed and voltage in less than 10 seconds (FSAR8.3.1.1.13.2); Speed does not exceed 75% of thedifference between nominal speed and the overspeed tripsetpoint or 115% of nominal speed, whichever is lower;Voltage is within 10% of nominal in less than 40% of eachload sequence time interval, no less that 75% of nominalvoltage during loading; Frequency is within 2% of nominalin less than 40% of each load sequence time interval, noless than 95% of nominal during loading.

COMPONENT: Electrical Governor Assembly REFERENCE RPE: E-6800

1. Critical Characteristic: Integrated System Operation

How Verified: IEEE 387 Testing, Rated Load Test, LoadRejection Test, Acceleration Test, Dead Load Pickup Test.


COMPONENT: Voltage Regulator REFERENCE RPE: E-6802

Critical Characteristic: OperabilityHow Verified: IEEE 387 Testing, Rated Load Test, LoadRejection Test, Acceleration Test, Dead Load Pickup Test.

Acceptance Criteria: Starts and accelerates to ratedspeed and voltage in less than 10 seconds (FSAR8.3.1.1.13.2); Speed does not exceed 75% of thedifference between nominal speed and the overspeed tripsetpoint or 115% of nominal speed, whichever is lower;Voltage is within 10% of nominal in less than 40% of each

'Q(g~ (p "/0 9g 3-6 r~-tm

Fc e-lb(~3It oP /2-

load sequence time interval, no less that 75% of nominalvoltage during loading; Frequency is within 2% of nominalin less than 40% of each load sequence time interval, noless than 95% of nominal during loading.

COMPONENT: High Voltage Chassis REFERENCE RPE: E-6806

Critical Characteristic: OperabilityHow Verified: IEEE 387 Testing, Rated Load Test, LoadRejection Test, Acceleration Test, Dead Load Pickup Test.


COMPONENT: Solenoid Valve REFERENCE RPE: J-1042

Critical Characteristic: Pressure Rating/Flow Capacity

How Verified: IEEE 387 Testing, Acceleration Test, DeadLoad Pickup Test, Starting Capacity Test.


COMPONENT: Pressure Regulator REFERENCE RPE: J-1146

1. Critical Characteristic: Regulation/Flow

How Verified: IEEE 387 Testing, Acceleration Test, DeadLoad Pickup Test, Starting Capacity Test.


COMPONENT: Sixth Diesel Engi'ne and Auxiliary Mechanical ComponentsREFERENCE RPE: M-6602

Critical Characteristic: Integrated System Operation

How Verified: Endurance Testing. (See PG&E to NRC Letter,CHRON 188555)

m4g-(o-'t 2