ML18227C901

Letter Submitting Supplement 58 to Final Safety Analysis Report Consisting of Revised Page 8.2-4 and Figure 8.2-3

ML18227C901
Person / Time
Site:	Turkey Point
Issue date:	09/20/1973
From:	Robert E. Uhrig Florida Power & Light Co
To:	O'Leary J US Atomic Energy Commission (AEC)
References
Download: ML18227C901 (10)

Text

AEC DIS (T22fPORARY FORM)

CONTROL NO: 7126 FROM:

Florida Power

& Light Company Miami, Florida 33101 DATE OF DOC 9-20-73 DATE REC'D 9-24>>73 FILE:

LTR MEMO RPT OTHER TO 0 John F. O'eary ORIG 3 signed CC 97 OTHER SENT AEC PDR X

SENT LOCAL PDR X

CL'ASS'UNCL'ASS PROP'NFO INPUT'O C S'EC'D 100 DOCKET NO:

0>>250 50-251 DESCRIPTION:

Ltr notarized 9>>20-73...,trans the following:

PLANT NAME..

Turkey Point Units 3 & 4 ENCLOSURES:

SUPPL 8 58 to FSAR consisting of Rev.

Page 8.2>>4 and Rev. Fig 8-2-3.

ACKNOWLKDggg DO NOT REMOVE (100 cys rec'd)

FOR ACTION/IAAFORMATION 9-24-73 fod BUTLER(L)

W/

Copies CLARK(L)

W/

Copies GOLLER(L)

W/

Copies RIEL(L)

W/2 Copies SCHHENCER(L)

W/

Copies STOLZ(L)

W/

Copies VASSALLO(L)

W/

Copies SCHEMEL(L)

W/

Copies ZIEMANN (L)

W/

Copies DICKER(E)

W/

Copies KNIGHTON(E) "

W/

= Copies YOUNGBLOOD(E)

W/

Copies INTERNAL DISTRIBUTION REGAN (E)

W/

Copies W/

Copies W/

Copies W/

Copies G FIL TECH REVIEW AEC PD HENDRIE

OGC, ROOM P-506A SCHROEDER MUNTZING/STAFF

~CCARYPc rPJ

~ASEC4 +<)

~KNIGHT

~IAMBUSSO(~~4

~PAWLICKI BOYD

~HAO MOORE (L) (BWR)

~TELLOC>> <+J

~EYOUNG (L) (PWR)(>~~ HOUSTON SKOVHOLT (L)

~OVAK COLLINS

~OSS

~IPPOLITO REG OPR

~DESCOC> r+

~ILE & REGION(3)

~ONG MORRIS

~INAS STEELE

~ENAROYA

~OLLMER

~ENTONC>>d

~RIMES mAMMILL

~STNER BALLARD SPANGLER LIC ASST DIGGS (L)

GEARIN (L)

GOULBOURNE (L)

LEE (L)

MAIGRET (L)

ENVIRO

~SERVICE (L)

MULLER SHEPPARD (E)

DICKER SMITH (L)

~KNIGHTON(C/~~

TEETS (L)

YOUNGBLOOD WADE (E)

REGAN WILLIAMS (E)

PROJECT LDR WILSON (L)

CLEVELAND HARLESS A/I IND BRAI'OMAN SALTZMAN PLANS

~CD ONALDC>+El DUBE INFO C, MILES EXTERNAL DISTRIBUTION JtJV

~1 - LOCAL PDR Homestead, Fla.

~l - DTIE(ABERNATHY)

~) (2)( Q-NATIONALLAB'S PNWL 1-PDR-SAN/LA/NY Wl - NSIC(BUCHANAN) 1-R.Schoonmaker,OC,GT,D-323

+-GERALD LELLOUCHE

-* ~/y 1-W, PENNINGTON, Rm E-201 GT BROOKHAVEN NAT. LAB 1-CONSULTANT'S 1-AGMED(WALTER KOESTER 16 -

CYS ACRS NNR@ Sent 9"24"73 to NEWMARK/BLUME/AGBABIAN-HM-C-427-GT M. Service for Dist.l GERALD ULRIKSON.,~..ORNL

('"3,,;1-.RD MULLER>.F.-.,309'T

L pit L

t' L"l' l,

~

Iv K ~

1

~.4)

,SQ 0

l 1

J Et P $

p<,;I q "t' r<'<

i a

n>>

q,,

t,

~

u, ~

II I

P P.O. 8OX 3100 NIAMI,FLORIDA 33IOI

+kill/gi

~

Oj QDCKETED VSNC 6

sfP g Q )973 REGulATDRY MA!L SECT 0 g"~ CTERa September 20, l973 Regulatorff'ile Cy.

FLORIDA POWER 8L UGHT COMPANY Mr. John F. O'eary, Director of Licensing Directorate of Licensing Office of Regulation U.

S. Atomic Energy Commission Washington, D. C.

20545 Re:

Turkey Point Units 3 and 4

Docket sos.

5~0-25 aoa 50-251

Dear Mr. O'eary:

@NIIh SEP34~9I3'I4$

. 'A'5384 IIegw t2L~

IIIas~0" 7

IlLilt~~M Florida Power E Light Company (FPL) herewith submits, pursuant to 10 CFR 50.34, Supplement 58 to the Final Safety Analysis Report consisting of revised page 8.2-4 and Figure 8.2-3.

This revision shows the change being made in the grounding of the 4l60 volt

busses, from a three phase transformer to three single phase transformers.

A loading resistor is connected across the broken delta-connected secondaries of these grounding transformers.

In four fossil fuel fired generating units placed in service prior to the subject nuclear units, and in the subject nuclear units, FPL used three phase grounding transformers.

Recent operating experience at Turkey Point has shown that the transformers can overheat if a ground is not cleared in a relatively brief period of time.

As a result of this, and a joint study by FPL and its engineer-constructor, FPL is 'changing its grounding standards to improve them.

Turkey Point Units 3 and.4 will be the first to benefit from this improvement, which will enhance operating reliability.

Very tru rs,

~

~

Robert E. Uhrig Director of Nuclear Affairs REU:nch Attach.

APPROVED

~

~

E. A. Adomat Executive Vice President HELPING BUILD FLORIDA

l %

~

'It I

I f

II I

li It t

g L

II

/

t,1LVN 1

+1,,1

.kf. a f

1 I

h Pg P

f r

k'

(

II

STATE OF FLORIDA )

)

SS COUNTY OF DADE

)

E. A. ADOMAT, being first duly sworn, deposes and says:

That he is an Executive Vice President of Florida Power 6 Light

Company, the Applicant herein; That he has executed the foregoing Supplement 8 58; that the statements made in this said Supplement are true and correct to the best of his knowledge, information, and belief; and that he is authorized, to execute the Supplement on behalf of said Applic n Signed Mn ~3 Subscribed and sworn to before me this day of 1973.

4't q

for the

~~I~ PU8llc STATE OF FlORIDA AT lARGE hIY COIhhIISSION EXPIRES FE8 ONDED THRU GENERAl INSURANCE UN c

, ~

= Notary P

ic in and "Coun'f Dade, State

~ 0 J4y,'Commission expires

/gp< "~<'r 2 y'/t'lt' II)66%

(

e

~

~

'V ~

t r

r

/~

Unit Auxilia

& Startu Transformers Each of the two units has an auxiliary transformer eon-

'ected tp the generator isolated phase bus to serve as the normal source of auxiliary electrical power.

Each transformer is rated at 30/40 MVA, OA/FA at 55C, 112%

rating at 65C, with primary winding at 20.9 KV and two secondary windings at 4.16 KV.

Each transformer is capable of supplying all the electrical power requirements associated with its unit as well as those requirements P

common to both units.

In addition to the unit auxiliary transformers,there are two startup,transformers, one for each unit, which are of the same MVA rating as the unit auxiliary transformers.

The startup transformers are connected to the 240 KV buses on their primary sides and have two secondary windings at 4.16 KV.

The startup transformer, serves the unit during

startup, shutdown,

-and after a unit trip. It also con-stitutes a standby source of auxiliary power in the event of loss of the unit auxiliary transformer during normal operation.

In the event the turbine trips, an automatic transfer connects the 4.16 KV buses to the unit startup trans former.

The unit auxiliary transformer can be isolated by means of removable links in the connection to the generator bus.

The startup transformer for the adjacent nuclear unit is available as a redundant source of emergency power.

8 ~ 2-3

4160 Volt S stem For each unit there are two 4160 volt buses fed separately from the double secondary windings of its unit auxiliary transformer under normal operating conditions.

At any time when power from the unit auxiliary transformer is not available, these buses are energized from the double secondary windings of the startup transformer.

Complete loss of power at the 4 160 volt buses of either unit causes the emergency diesel generators to start and feed nower directly to them.

The 4160 volt: buses are grounded by means of 3 10 KVA, single

phase, 4160 - 120 V grounding transformers.

All motors 300 HP and above are supplied from the 4160 buses.

480 V lt S stem The 480 volt system is arranged in an identical manner for Units 3 and 4.

For each unit there are four 480 volt buses arranged in double ended load center configuration.

Each bus is fed from a separate load center transformer rated at 1000 KVA, 4160/480 volts.

The two transformers of each double ended unit are energized from different 4160 volt buses.

This arrangement ensures the unit against being deprived of all equipment associated with a particular function in the event of loss of one 4160 volt bus.

All loads above 100 HP and below 300 HP are connected to the 480 volt load centers.

The load centers also feed all the 480 volt motor control centers.

There are ten MCC's as

8. 2-4 Rev.

35 9/20/73

rl I

iVM~

Dt 0

J 2400 Iaarl f I

21 GOA

't40wta114 LZS A'X tOOOA 1aaatc 114 COOOA tlrrla ICS 2 IcraIA 245'wtasas 2ODOA tllv'11%41 tloo\\a 4 10~

2 I COA 2 law lac at LOOOA laoaaac'Il /

ICOOI 4 Q 240524512 CoatC %01(CQODUO ccvrrtta) ac0 tave,aaqi) /

2OOOA

+C taoctkCITLrvt)t ICOOA t4altC %45

~CLDCA 1CD414%lt taootkato

~I c(40 KV W St%ST ttlrttv

ICOOA,

~0114'1 I 0

taOXIrv141 (la%IUD %WIICK) ctOOA 4 Ri 240114424 240 KV CAST CLCJS r.occA, /

c tccct4421 /

2 ccoA tcawtattt~~

taOoac 111 OOOA 1 ca L 1% 111 2 ICKIA.

1 ~ a w IL1II%Tv 1 ~ Q ate cac 2LDDI~ aa' taawtaacarv COCOA /

1Coo'll ~ %%/

5 DC

~COCA A

~4 2 14 ' 'll ao 11( 155(LQOWIO %wet(ar ICCOA /

2404tc Sal /

COCOA tkawaMLMTISAJI A

I%CGA, 2aallvaaa 2OCGA tt

ICOOA, 2%4LII CIC 1000 A

52. 4 arook cccoA /

QU tkc111515 2404 2552C la roar art /

~0 OOA 4 ac Iicttc,%11 vtaQL tC COC 1 QDILO 14 12DOA.

24011C

~ 2%

a\\

~/

) tlaac

+t~catatc 1caGII \\CI /

1454clr %14' j

Iaaak, Cait'21 Icka'ra taortkIISLr p<',

taawikaraLr fCIO KA1c

~aoeA /

reocIA /

tcaL Ir 511 ( IC'Dt (g lakktaar ( (CD%

~ tcaa(4%02 SQQUAD lac%re vaeoA HLCC4A teak talac j tao 4 %4 5 Irk 2 Dec Af 1

)

taoJSLSQQ(

2

'"'~. r, I

CIIAMcl/~

~aeeA saacavasa

)

2oeoa 2 Rave%at 2 II

<<acaa, /

cocoa, /

2aacita51%

f tcoaiaaSLo f

~me (

\\

f J hoeA SIMrkcar jK J IaeeA to A( '

KNJ SMMA(

1 tccwrkact (rj tactllaat SKII140 LDUIMCI 2

) 'C0125411

~C4OA /

MA/4 TILAMSP, aco 4

'TSV454MVA

~ 1145 C ~'SA 40 2 5%/ 24 5Kv I4. 5 %

(440 HVAS CRIC MCA4 Croa MVA O

2. 4 ccv 10 40 1440 4 PIA AL cwoo M>>r a

1t "e

44IT kakL TRAN%CA 4C 4 la CANYLM/YA Crit Crea%Lay,acvv 24 0

~Ja L.I4ICV 2

we( akte SNVA

'L w 1 pa 4 teovva 2 y y litter%Mal

~Tk/LT

'takvv%P 44 4 DCVaewASAPAas IL II'1'LCO4% 4,%1LCCC V tar 4,IC 4 I4KV w.),4 424RMVA 1 4 y ~ 445PISMR 2 X l 15224ISNYA LIAI4 TRAMSR 40 t 1 ~ 4/4 I0 MVA 5524%

C I'PA 2 11/ta0

~ v I~ SC

(~ ao MVAI C

~,

~)

t rcv lr oo 14DGRPM

<<0 UNIT AUX YRAI/ar, NC a

~Vaawk ka/ra 0

~ctoal 4,45 444 tor LI4 AICICV 2 w.a ~ I C'5415w 1 N.ycC CSCHCW y vr la 50ISU a<)5 StART DD TRLNty 405 50/Aowkckkk0 55 ILSID45%555 ar

~ tlr AIC AI4AV t Iva I kyMrakv 2 K.y CARP Swk 2 5 y cratt/Irsayk

\\

~Cja ta ISTClccl r

LAIUM TIRANar CCOMUAPOA(AAV LL~

2krkaa

/Tr I t C.J.ju t 0ec

.JC A'

CTI /Yagf

/ f

(-()'."'"-"'catcv

~cc(5455 Saoa/5rto

- ~~V II%4k

~

ACGV ki/AakvtcL CA (LDOMVko 4S,COV Aa ~ OCCR 44(atkcwk) kcoe Avy swat

$4(aaonvk) 4 W25455

~1%0 ~rto

%MA vvov kva cwcc ta, (IYASMIR) 4 Z'

t'

'i 2(" j

!":)I '": L(

2 V

1

~ 4 tf Ia

~

aa

~

4 a

,) )'5 D(I

.4 ev 44V rn Ep 2 ~

LA Oa %

/l5

~g LOAD Ctarv tea

),

4 Oocc

~

KA LOAD CRCITCR

~

/TYTIIaaarvA PA 44 +

A/

AI44 40%V% T P

4

%1I t a%ala

, I C.ka LDAD CCMTCR VRAMar, ara. La

~

.Ivvva 144acrA 0A CL 4, eee lao vac T Sn ta%15y

)O CCDck LC JC cvT LDLD ccMTCR 1 IJ TRA4an 44 40

//Vvl 4earvA aA 41 4

~laa 444VDLT 5 ra 2

aoovl

~ C 4D 4

LOAD CCNTCR

'akwar Ma DA

~

/YTTI1444KvA, CA kc44 444va T tvt.rSR

)34 COOT L C SA c.~ 444WVA eA 44'

~144 444VAT

%f ta \\'155 4

kaov CQ LCLD C44TOR 44 DC

~.~ raoaxvA cvwct'c krao Sea vaLT

. taLYSA CACIV.

~. 0 LDAO CKNTCA Me,ao CMalcvA OA OS 4 kr40 Aaa voLT

%0 ~ 5 5111 46CAC I C DD 4

<<z

~I~

a 4(

0Ke l~ 4 f

1 rr" R

5'ao G 0 II( 54

%i:.:i 12,0 ct V vg Ce Vg "o

I(4

~I 0'5 J

>~

Bb

)

o')o)

~ 2 p

kr j>>

Ot 41 8j

)

)

)

)

v 4 ~ tlo te

>f Bh~

~ )

0 Dcf p.I'"

I o

o

)

0

)

oo Ii t

'r o 4

~ 0 0'L LU J

0 "2

0 30

<n CO1 24 0 ga 0

Zatt 10 2

Ug o

2 ~

2 CI 440k M44 AO

~ACACTOC ARKA CC 'PC RCAceea ARRA 1

atGTC5 I Ir yea AAI ACI4CL SNT ( DC144.5 er 4rka V.

'I WISCHOCAR aaa DWL t'1 CC ~

aaa. ~ I40V LIAX111ALLIIDDACklcaaa 41aaawaa NCIID.

t,,y'oR ARLArcoc4141 c DttkILLop 440 v I DAD CC41aaaLt.OWD. Cva ACLC50 V 4LIAaa'1'I AaC 444A wLL11 or\\cakwraa U411CI

s. Poa kaaavlcw coat 5 ottarLC ar.Clo Ivoroa CoNSRCL LNttaS SCL OWDL C 1 2 CAW 444 4 M

~

~CGC AA TURakca kvctA MCC 4C

'PURI ARDA 4~ 4 MSC ar TURCINR ARCA

~UtLAR54

/

c/

~ '

~ ~

IMSAC% ARtA I

y,

'I

~

MCW MOC D acktt 2 DICPO%AL JVCRA 4o) 0 DC'IAC(t %CA ELECTRICAL SINGLE LINE DIAGRAM P3.gv 8'-3 Rev.

35 - 9/20/73

~.r 4

,a

>\\ N'1 0