ML22194A223

2 to Updated Final Safety Analysis Report, Figure 7.3-1, Functional Diagram ESF Loading Sequence System

ML22194A223
Person / Time
Site:	Summer
Issue date:	06/27/2022
From:	Dominion Energy South Carolina
To:	Office of Nuclear Reactor Regulation
Shared Package
ML22194A236	List: ML22194A109 ML22194A110 ML22194A111 ML22194A112 ML22194A113 ML22194A114 ML22194A115 ML22194A116 ML22194A117 ML22194A118 ML22194A119 ML22194A120 ML22194A121 ML22194A122 ML22194A123 ML22194A124 ML22194A125 ML22194A126 ML22194A127 ML22194A128 ML22194A129 ML22194A130 ML22194A131 ML22194A132 ML22194A133 ML22194A134 ML22194A135 ML22194A136 ML22194A137 ML22194A138 ML22194A140 ML22194A141 ML22194A142 ML22194A143 ML22194A144 ML22194A145 ML22194A146 ML22194A147 ML22194A148 ML22194A149 ML22194A150 ML22194A151 ML22194A152 ML22194A153 ML22194A154 ML22194A155 ML22194A156 ML22194A157 ML22194A158 ML22194A159 ... further results
References
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Download: ML22194A223 (1)

Text

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14 13 12 11 TR IP & LOCKOUT NON-ESF LOADS RESET r-*----*----~-*----------*------*------ -- *-

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I I I I I OUTPUT I

TRIP MOTOR FEEDERS ON NSR BUS I

OUTPUT

~

All GN RBCU WATERSIDE TO SW (RESET)

OUTPUT 4

AUXILIARY TR I PS &

LOCKOUTS (RESET)

.l BLOCK AUTO START CHANNEL A(B)

PUMPS OU1PUT 5

TRIP S l;tHARGING PUMP C 10 OUTPUT 6

olDCt< PJ..110 START OF SW PPS A(B)~ C.

BLOCX AUTO START RESET q

NSR BUS UNDERVOL TAGE (SEE NOTE 4) 8 7

DIESEL GENERATOR BREAKER A(B)

CLOSED 6

SAFETY INJECTION SIGNAL CHANNELA(B))

5 SAFETY INJECTION RESET I

4 BY ornrns

~-------------,_ ________ --- ------------* ~-*--*-** ****-------------***---------~ -----7 OUTPUT 7

TRIP NORMAL t EMERGENCY NSR BUS SUPPLY BREAKERS STEP IA

• j U<o SEC

\....; Px STEP 18

"'l r START LOAD BLOCK #1 I

) t...

\....; V""- (5 SEC )

STEP 2

START RHR PUMP A(B) l START s w PUMP A(B)/C BLACKOUT SEQUENCE SIGNAL

,I,)

(RESET)

\

'-/.-.._ (10 SEC }

- ~

STEP 3

.L START CH I LLEO ll"HER PUMP 1,(8)/C TIME DELAY

\_: /..,/ (0-0 I ScC )

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l F*

STr1RT SHRT START R.B. C0OclNG cc EFW UNIT

!A OR 2A PUMP PUMP A~JO A(B)/C MB)

!8 OR 28 BI CONTRACTOR I

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,-*/TIME DELAY V

( I -

30 SEC )

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START FH BLCG EX FAN A (8)

)

-I/

START s w BOOSTER PUMP A(B)

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'---..;;;.. :,-,..;..._. I (35SEC)I START HVAC Cl11LUR A(B)/C I

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_J NO.

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NOTES -

1 TEST FEATURES AN LIGHT INDICATION NOT SHOWN ON LOGIC 2

LOGIC SYMBOL LEGEND OR ADJUSTABLE TIME DELAY (ENERGIZING)

ANO NOT RESET (CLEARS MEMORY ONLY If INPUT DOES NOT

,-.S.-r-"'-, EXIST)

~""'

ADJUST ~6LE MOM ENT ARY OR PULSED SIGNAL 3

LOG IC SYMBOLS ARE USED TO REPRHENT A FUNG! JON OF THE LOG IC TRANSMISSION AN DO NOT NECESSARILY REPRESENT A LOGIC DEVICE 4

UNDERVOLTAGE SIGNAL llll CLEAR WHEN THE DIESEL 6ENERATOR BREAKER CLOSES 5 TIMER RESET OCCURS WHEN SIS AND/OR BLACKOUT SEUUENCE SIGNALS ARE CLEARED BLACKOUT SEQUENCE SIGNALS MAY BE CLEARED BY INITIATIO~

OF AN SIS SIGNAL OR COMPLETION Of THE SEOUEHCE 6

DIAGRAM DRAWN FOR BOTH A & B CHANHflS FOR 8 CHANNEL, SUBSTITUTE B FOR A WHERE INDICATED SY A(B) 7 OUTPUT BLOCKS AND STEP BLOCKS REPRESENT OUTPUT RELAYS SDL:TH LARCl:NA EL'ECTFIC & 3f'l,S COMPANY V1,9GIL C, SUMMER NUCLEAR STATION I & C FUNCTIONAL D'AGRAM

-ESF LOADl,~G SEQ~ENCE SYSTCM 6

DESIG~ [NGINEERlNG 3GC1,G V. C $UM\1t'-: ~J:,,r.1 ".M< 'STATIC!~ Jf,NkMS'<1lLLE: S, C.

WDE U-H:CK!;:D L( APPROVAi

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