ML21286A417

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Amendment 29 to Updated Final Safety Analysis Report, Chapter 8, Figure 8.5, Standby AC Power Supply
ML21286A417
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 10/04/2021
From:
Tennessee Valley Authority
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21286A574 List: ... further results
References
Download: ML21286A417 (71)


Text

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OG-A PUSHBUTTON ON DG-A.

LOCAL ENGINE CONTROL CABINET IN "START" POSITION NO CONTROL VOLTAGE AVAILABLE ON DG-A OIESEL-GENERATOR LOGIC PA~'EL 1'

START DIESEL GENERATOR A IN "SLOWn MOOE NOTE: FOR DIESEL GENERATOR A; ALL OTHER DIESEL GENERATORS SIMILAR.

AMENDMENT 16 BROWNS FERRY.NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT DIESEL GENERATOR LOGIC DIAG~AM SLOW START FIGURE 8.5-14b

OG-A. CONTROL DG-PUSH BUTTONS OG-A CIJ'lTROL DG-A SELECTED DG-A SELECTED SWITCH IN UNITS ON OG-A LOCAL SWITCH ON PROTECTIVE PROTECTIVE 1-2 CONTROL ENGINE CONTROL SHUTDOWN BOARD RELAYING RELAYING ROOM IN "STOP" CABINET IN A IN "STOP" OPERATED OPERATED POSITION "STOP" POSITION POSITIONS NO CHANl'EL "A" ANO/OR *a*

ACCIDENT SIGNAL ON LNITl,20R3 OG-A BACKUP TRANSFER NO CONTROL VOLTAGE DG-A BACKUP TRANSFER SWITCH ON SHUTDOWN AVAILABLE ON OG-A SWITCH ON SHJTDOWN BOARD A IN DIESEL-GENERATOR BOARD A IN "NORMA.Lu LOGIC PANEL "EMERGENCr STOP DIESEL-GENERA TOR A ANO TRIP DIESEL -

GEl-ERATOR BREAKERS NOTE:

! . FOR DIESEL GENERATOR A. ALL OTH::R DIESEL GENERATORS SIMILAR.

AMENDMENT 22 BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT DIESEL GENERATOR LOGIC DIAGRAM STOP FIGURE 8.5-He

C:HANr.EL "A* AOO/OR DG-A VCLTAGI:'.

~e" ACCIDENT SIGNAL AVAILABLE ON ONUNITl.20R3 SHUTDOWN BOARO A AFTER SEQUENCE A TRIP DG-A BREAl<ERS START OO*A START SELECTED ST ART RHR A OF IF CLOSED UOV LOADS AT ACCIDENT l.NlT AT T

  • O SE;COlf)S T
  • 0 SECOt()S 1----- ------1 ~~~~ ~Tr AT T " 7 SEcc>>DS VOLTAGE AV.\ILABLE AT SHUTOO\llN BOARD B I I I I I I I I I I I I STA.RT RHR SW Al AT VOLTAGE AVAILABLE AT T
  • 14 SECONDS SHUTDOWN BOARD 0 I I I I I I I I I

I I

I I

VSECIUENCEA START Sa.ECTEO 480V LOi\DS AT T = 40 SECOOOS

~1x.1-~......  :

I I

L.------------.JI NOTE:

I f"QR DIESEL GENERATOR A, ALL OTHER 0If.£EL GENERATORS SIMILAR AMENDMENT 22 BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT DIESEL GENERATOR LOGIC DIAGRAM AUTOMATIC LOADING FIGURE 8.5-15

LOSS OF VOLTAGE ON SHUTDOWN BOAll!l A FOR 5 SECONDS WITH NORMAL SOURCE OF POWER fRIP ALL MOTOR FEEDER BREAKERS ANO NORMAL SOI.ACE NO ACCIDENT SIGNAL OH lNOOIING BREAKERS UNITl.20!>3 ON Sl<JTOOWN BOAll!l A TRIP ALL MOTOR FEEDER BREAKERS ON SHUTDOWN BOARD A

NOTE*

I . FOR SHJTOOWN BOARD A, ALL OTHER SHUTDOWN BOARDS SIMILAR .

AMENDMENT 22 BROWNS f'ERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT STANDBY A-C POWER LOGIC DIAGRAM LOAD SHEDDING, +.16KV SHUTDOWN BOARD FIGURE 8.5-16a

  • CHANNEL *A" At-DIOR "8" ACCIOENT SIGN~

LOSS OF VOLT AGE ON ON UNIT I OR 2:

4BOV SH..ITDOWN BOARO FDR 2 SECONDS TRIP SELECTED MOTOR FEEDER BREAl<ERS MOTOR FEEOER TRIPPED AND FROM AUTOMATIC AMENDMENT 22 REACTOR111JllDINC:

UNITS 1, 2 ~ J BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT STANDBY A-C POWER LOGIC DIAGRAM LOAD SHEDDING, 480V SHUTDOWN BOARD FIGURE 8.5-16b

LOSS OF VOLTAGE QN 480V REACTOR MOY BO*RD SELECTED STARTERS OPEN SELECTED ST ARTERS SELECTEO STARTERS TRIPPED AKI BLOCKED TRIPPED AND TIEN FRON AU TOMA TIC AUTOMATICALLY R£CLOSURE RECLOSED Al='TER A TU£ OELAY AMENDMENT 22 BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT STANDBY A-C POWER LOGIC DIAGRAM LOAD SHEDDING, 480V REACTOR MOV BOARD FIGURE 8.5-16c

CHA!>IEL "A" ANJ/CJR "B~ ACCIDENT SIGNAL 0Nt..NITS1,20RJ NORMAL VOLTAGE AVAILABLE ON SHUTDOWN BOARD A START SELECTED 460V START RHR A CF START CS A OF START RH? SW Al LOADS ACCIDENT UNIT AT ACCIDENT UNIT AT AT T " 26 SECONDS T "' 0 SECOl'IJS T = 0 SECOt:l!S NOTE:

t , FOR SHUTDOWN 60ARD A, ALL E>THER SHUTDOWN BOARO$ SIM1LA.R ,

AMENDMENT 22 BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT STANDBY A-C POWER LOGIC DIAGRAM AUTOMATED LOADING OF SHUTDOWN BOARD, NORMAL POWER AVAILABLE FIGURE 8.5-17

OPERATION --------------

AMENDMENT 25

BFN-16 Figure 8.5-19 Deleted by Amendment 10.

BFN-16 Figure 8.5-20 Deleted by Amendment 10.

BFN-16 Figure 8.5-21 Deleted by Amendment 10.

DIV I DIV II

@ ' DIESEL @ DIESEL f11 DIESEL @ DIESEL T. GEN A T. GEN B T. GEN C T. GEN D

) ) ) )

UNIT 1 UNIT 1 ECCS I ECCS I UNIT 1 ECCS I UNIT 1 ECCS

~-1 t:1 UNIT 2 UNIT 2 UNIT 2 UNIT 2

... ao c:: .... .....

x*

,..o

..,.z ECCS ECCS ECCS ECCS

... *Hn

~ ~p Ol ...

m1t1

-4Z

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>- -c z

'{' p. H N H zz 0 s:

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BFN-16 Figure 8.5-23 Deleted by Amendment 10.

~ DIESEL ~DIESEL ~DIESEL GEN 3 C

~ DIESEL GEN 3 D GEN 3 A GEN 3 B I

) y) y) y) ,*

f . I l UNIT 3

~) ~)

I l I UNIT 3 ) UNIT 3 UNIT 3 UNIT 3 ,)

ECCS ' ECCS ECCS ECCS LOADS LOADS LOADS LOADS

~ DIESEL ~DIESEL ~DIESEL ~DIESEL GEN A GEN B GEN C GEN D

.... e I I) e I I) i)

I UNIT 1 & 2 I) i)

I UNIT 1 & 2 I) UNIT *1 & 2 UNIT 1 & 2 UNIT 1 & 2 AMENDMENT 16 ECCS LOADS ECCS LOADS ECCS LOADS ECCS LOADS BROWNS FERRY HUCLUR PU.HT FINAL SAFET'f AHALYSIS REPORT Unit 3 - Units 1-2

  • Interconaection11 FilCUI'e B.5-2.lt