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52 LOGIC SYMBOLS FUNCTION DEFINITION A\D CR OFF riETURI\
t--:EMOR!
RE:ENTIVE t--:E1".CRY ADJLSTA3LE TIME DELAY ENERGIZING AJJUSTA:L..E TIME DE-AY DE-ENERG!Zl1'G A CONTROL F~Nc-io~ W~ICH PRODJCES AN OJT-PU7 WHE~ EV~RY : NPJT SIGNAL rs A?PL : ED.
A CON7RO~ F~t\CT:ON WHICH ?RCD~CES AN OUT-
?~T Ot>.LY WHEII. ONE <OR ~O;lE) lt-.?U"'." S!Gl\A~
IS A?OL[SJ.
A CONBOL =UNCTION WH:C~ PROJLJCES AN OLiT-PUT ON_! w~EN NO !N?JT s : GNAL IS APPL :Eo.
A CONTROL FJNCT IO~ w~1c~ RETA'.NS T~E :011.-
JJT :OI\ OF 0-TP~T :oR~ESPOt-.DIN8 TO T~E ! N-
?UT LAST APPLIED EXCEPT LPON : NTERRLPT :ON OF PCWE~ '.T RETURNS TO 7HE OFF CC~D:TION.
A :C~TRO~ FUNCTIC~ WH!CH ~E,Al~S T~£ CON-D!T!ON OF OJ7PLT :o~RESPCND :t-.G TO THE !N-p~- LAST A??~:ED EVE~ w:TH A POWER FA:LLRE.
DENOTE :~7ERCONNECT[C~ TO OTHER LCG:C A CONT~OL CJNCT!ON WriiC~ PROJUCE:S AN OUT-PU7,o~~OWING DEc:NI TIVE IN7ENTI ONAL 71M:'.
DELAY A=TER l7S :NP-T S:G~A-iS APPLIED.
<EXAMPi..::: SnOWS O 70 30 SECON)S AJJLSTA3L!::
TIME DE_AY E:>:icRGIZ !:--:G. :
A CO~TRO_ =JNCTIC~ WHOSE ou-Pl;T IS OE-E:-.E:RGl ZED i'O~~OWI ~G A DEF!N:7!VE I\JTENT IONAL,
T:ME DELAY AF-ER ITS : NPUT S: G~AL IS RE~CVED. j (EXAMPLE SaOW O TC 3~ SECONDS AC,USTABLE I
7!ME DELAY D::-ENERGIZiNG. I A CO\J-RO~ FLII.CT:ON WH:CH ?ROD~CES AN CGT-CO [ N: 1 DEl'<CE PL 7 Q)J_ Y Wt-lEII. Tr-IE ?.~ESCR I a:::D ;-.:;MBER OF
( 2 OUT O= 3 ShOWN l
, II.FU, S ! G"ALS IS AP~L l ED. I FOR EXAMP~E S~OWN, ANY 2 :NPJT SIGNALS ARE RECUIRED FCR AN OUTPUT. :
C!RCJ !T BREMER A ~EC~AN:CAL sw:TCHING JEVICE WHICH RETA:NS C
cs SIS 43 43MU 43R OR 43/TS 52-:F-2 52,-,G6 52V)6
< SV l, ( CVI CSIO"'EII: OR 431:._CCAL DEVICE FUNCTI ON NUMBERS AND LETTERS CUT~UT PR:::SE~T WhEN CIRCUIT 3REAKER !S CLOSED OGPUT PRESENT WHEN C:RCc;!T BR:CAK:'.;l,S OPEN COts:TROL S\-iiTCH SAFETY :r-:~:::,rc~ s:GNA~
AUT0:-1.AT!C - MAN~A- ~RA~SFER SWI TCH TRA~SFER SW,~CH JSE) TO TRA~SFER CC~: RCL FRC~ THE MAIN CONTROL ROOt--: TO THE YOT SHU7DOWN PANEL. SWIT:ri IS
_CCATED 0~ fr. 2: HO-S-iJTDCWN PAN::L CR SWITCHGEAR.
t--:CTOR S7AR:ER 480V BUS SECTION r BR2:AKER ~0. 2 CIRCU!7 BR2:AKER <BOV B~S SECT:ON c BREAKER ~0.2 CIRCJl7 3REA~ER 4~V SUS SECTION G 3REA~ ER ~0. 6 CIRCUIT SREA(ER
- 2iv BLS SECTIO)J D BREAKER NC. 6
-E~ToRS :\ PAR,KHES:s l~J;CA7E T-iE TYPE OF EL:.C'RICAL RELAY DESIGNA7ION ABOVE 7nE L:~E DENO:ES JEV!CE, DESI GNA7!CN BELOW 7HE _!NE DES !Gt-.ATE:S THE S: :;'.IIA:.. I NFCR~A 7: ON OR POSIT IC~.
RM INDEXED REv..,:>_
7RIP 7HE CCND:TION OF OUTPuT :CRRESJONJ,t-,;G TO 7~E
~2,:,,.+--L,~=~~=~--1--~ff:~""""--+::':'--::'~::--1/2ec:,~
IS AL SO 7R; P FREE, AND W: L~ ~OT "PJ~~*
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<SE~ No,::. l.
KEY OWG--SECT!ON 3
COAST VA~"EYS )JVIS :ON MICROFILM 3
APPRCVC:D CM 167027 t-~---------------11-----t----+---'---+---1 BY SUPV H. HERT I ~G JE:i OSCN E.ZE:T2:R LOGIC DIAGRAM SYMBOLS BILL OF MATL DWG LIST
- >50052
- SUPSDS E
D C
B
- < 0:2-E::-iass 11 I OC2-::E -,8593)
DC2 -EE -<85941 : FCT-I 5279 l D,\
1DWN E. Z.
DIABLO CANYON
- ..s_u_Ps_o_a_v _________ A jSHEET NO.
I 'S-29-71 A?PROVED F::>, C::>NS7R 167 027 DESCR!PT I ON GM/S?EC OWN CHsD SUPV,
APV~ BY R E V I S I O N S
~18C5 2
3 4
TA3 DATE 2-!7-70 SCALES NONE 5
J EPART~ENT OF E\Glt-.EE~:\JG PACIFIC GAS AND ELECTRIC COMPANY SAN FRANCISCO, CALIFORN[A 7
8 SHEETS 19425 REV 3
9 10