ML21286A412

Amendment 29 to Updated Final Safety Analysis Report, Chapter 8, Figure 8.4, Normal Auxiliary Power System Key Diagram

ML21286A412
Person / Time
Site:	Browns Ferry
Issue date:	10/04/2021
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
Shared Package
ML21286A574	List: ML21277A142 ML21286A195 ML21286A196 ML21286A197 ML21286A198 ML21286A199 ML21286A200 ML21286A201 ML21286A204 ML21286A205 ML21286A206 ML21286A210 ML21286A211 ML21286A212 ML21286A213 ML21286A216 ML21286A217 ML21286A218 ML21286A219 ML21286A220 ML21286A221 ML21286A222 ML21286A223 ML21286A224 ML21286A225 ML21286A226 ML21286A227 ML21286A229 ML21286A230 ML21286A231 ML21286A232 ML21286A233 ML21286A234 ML21286A235 ML21286A236 ML21286A237 ML21286A238 ML21286A239 ML21286A240 ML21286A241 ML21286A242 ML21286A243 ML21286A244 ML21286A245 ML21286A246 ML21286A247 ML21286A248 ML21286A249 ML21286A250 ML21286A252 ... further results
References
Download: ML21286A412 (5)

Text

LOSS OF 4KV SHTDN BO voi. TAGE 27/ 0A[2703AJ RELAY NUMBERS A!ZS C¢

,...__ _.~-(T-Y-PI_C_A_L_)~

DIESEL GEN A 2-21 I -2A [2A3]

[::!A] BKR TDPU ,. 4 SEC 1818 [1838]

CLOSED INTER TIE BKR 1824

[ 1644]

CLOSED

ii CASA-I w CASS-I DG\/A-AI 27/SAY

[27/S3...Y}

2-21 I -4A [4A3] TRIP ANO LOCKOUT SUPPLY BREAKERS TDPU .. I .3 SEC 1614(1334]. 1716(1726]. TR!P ALL

(.NOTE 31 LOAD BREAKERS. (TRIP 43SA TO MANUAL)

.-----1BKRS 1614(1334] , 1716[1726) .

AND I 824 [I 844] TRIPPED MJTES ,

I . UNIT 3 NUMBERS ARE IN BRACKETS ( ] .

DIESEL GEN A

[3A] AT SPEED 2 . THE TOTAL TIME FROM DETECTION OF DEGRADED VOL HGE BY THE 27 RELAYS TO THE CLOSING OF' THE DIESEL GEN A DIESEL GENERATOR BREAKER MUST NOT EXCEED THE MAXIMUM TIME DELAY THAT IS ASSUMED IN THE FSAR

[3A) VOL.Tio.GE ACCIDENT ANP.L YSIS . SEE FSAR SIO:CTION 6 , 5 FM IN ' SPEC " THIS AN/\!.. YSIS .

3 . THIS TIME DELAY ALLOWS FOR SHUTDOWN BOARD POWER SYSTEM ISOLATION AND VOLTAGE DECAY e!::FO~ - !HE OIES£L. G~ERA.!OP ftQF°Ak'FR 1818 CLOSE SIGNAL IS ISSUEO .

CLOSE BKR 1818[1838) AMENDMENT 16 FROM DIESEL GEN A [ 3A )

REACTOR BUILDING UNITS I, 2 !. 3 BKR 1818[18~8 CLOSED (T S: 10 SEC)

NOTE 2 BROWNS FERRY NUCLEAR PLANT FINAL SAFETY ANALYSIS REPORT LOGIC DIAGRAM - DEGRADED VOLTAGE AND LOSS-OF-VOLTAGE RELAY CHANNELS FIGURE 8. 4-4