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I LOOP 3 & 4 INTERLOCK
{SHEET 13)
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REDUNDANT-/
[ 160, 1301495884D. E62 I I 93 N.IIJSI REDUNDANT EWP 2
3 LOOP 3 LOOP 3 FEEDWATER BYPASS FEEDWATER MAIN VALVE POSITION VALVE POSITION DEMAND SIGNAL DEMAND SIGNAL C SHEET 2 I )
C SHEET 2 I l I
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MODULATE MODULATE FEEDWATER FEEDWATER BYPASS VALVE 3 MAIN VALVE 3 FCV-1530 FCV-530 CNOTE 3)
C NOTE 3) 2 3
4 WIDE RANGE LEVEL STM GEN I
$TM GEN 2 STM I
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STATION I STATION I
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CHANNELS GEN 3 STM GEN 4 I
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t LOOP 4 FEEDWATER BYPASS VALVE POSITION DEMAND SIGNAL C SHEET 21 l 6
LOOP 4 FEEDWATER MAIN VALVE POSITION DEMAND SIGNAL C SHEET 2 I l I
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MODULATE MODULATE FEEDWATER FEEDWATER BYPASS VALVE 4 MAIN VALVE 4 FCV-1540 FCV-540 (NOTE 3)
(NOTE 3) 7 REDUNDANT I
8 I
NOTES I. ANALOG GATE CONSISTS OF 2 SOLENOID VENT VALVES IN SERIES TO REDUNDANTLY INTERLOCK THE AIR LINE BETWEEN EACH VALVE DIAPHRAM AND ITS ASSOCIATED POSITJONER. THE SOLENOID VALVES ARE DE-ENERGIZED TO VENT, CAUSING THE MAIN FEEDWATER VALVE TO CLOSE INC)SECONDS.
- 2. ALL CIRCUITS IN THIS SHEET ARE NOT REDUNDANT EXCEPT WHERE INDICATED "REDUNDUNT",
- 3. OPEN/SHUT INDICATION FOR EACH FEEDWATER CONTROL VALVE IN CONTROL ROOM.
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- 4. SHEET NUMBERS REFER TO THE REFERENCE NUMBERS BELOW.
I
- 5. WHENEVER A PROCESS SIGNAL JS USED FOR CONTROL AND JS DERIVED FROM A PROTECTION
- CHANNEL, ISOLATION MUST BE PROVIDED.
- 6. THIS DRAWING ILLUSTRATES THE FUNCTIONAL REQUIREMENTS OF THE REACTOR CONTROL AND PROTECTION SYSTEM. THIS DRAWING DOES NOT REPRESENT ACTUAL HARDWARE IMPLEMENTATION. FOR HARDWARE IMPLEMENTATION, REFER TO THE APPLICABLE SCHEMATIC.
10 WE DWG PG&E DWG I. FUNCTIONAL LOGIC DIAGRAM INDEX AND SYMBOLS ____________________________________ 5653D74-I ______ 495871 2, FUNCTIONAL LOGIC DIAGRAM REACTOR TRIP SIGNALS _________________________________ 5653074-2 ______ 495872
- 3. FUNCTIONAL LOGIC DIAGRAM NUCLEAR INSTR AND MANUAL TRIP SIGNALS __________________ 5653D74-3 ______ 495873
- 4. FUNCTIONAL LOGIC DIAGRAM NUCLEAR INSTR PERMISSJVES AND BLOCKS ___________________ 5653074-4 ______ 495874 5, FUNCTIONAL LOGIC DIAGRAM PRIMARY COOLANT SYSTEM TRIP SIGNALS ____________________ 5653D74-5 ______ 495875 6, FUNCTIONAL LOGIC DIAGRAM PRESSURIZER TRIP SIGNALS ______________________________ 5653D74-6 ______ 495876
- 7. FUNCTIONAL LOGIC DIAGRAM STEAM GENERATOR TRIP SIGNALS __________________________ 5653D74-7 ______ 495877 8, FUNCTIONAL LOGIC DIAGRAM SAFEGUARDS ACTUATION SIGNALS _________________________ 5653074-8 ______ 495878
- 9. FUNCTIONAL LOGIC DIAGRAM ROD CONTROLS AND ROD BLOCKS ___________________________ 5653D74-9 ______ 495879 10, FUNCTIONAL LOGIC DIAGRAM STEAM DUMP CONTROL ___________________________________ 5653D74-IQ _____ 495880
- 11. FUNCTIONAL LOGIC DIAGRAM PRESSURIZER PRESSURE ANO LEVEL CONTROL _________________ 5653074-11 _____ 495881
- 12. FUNCTIONAL LOGIC DIAGRAM PRESSURIZER HEATER CONTROL ___________________________ 5653074-12 _____ 495882
- 13. FUNCTIONAL LOGIC DIAGRAM FEEOWATER CONTROL ANO ISOLATION _______________________ 5653074-13 _____ 495883
- 14. FUNCTIONAL LOGIC DIAGRAM FEEDWATER CONTROL AND ISOLATION _______________________ 5653074-14 _____ 495884
- 15. FUNCTIONAL LOGIC DIAGRAM AUXILIARY FEEOWATER PUMPS STARTUP _____________________ 5653074-15 _____ 495885 16, FUNCTIONAL LOGIC DIAGRAM TURBINE TRIPS, RUNBACKS & SIGNALS ________________...... 5653074*16.. _.. 495886
- 17. FUNCTIONAL LOGIC DIAGRAM AMSAC SIGNALS ********-******************************5653074*17..... 495887
- 18. FUNCTIONAL LOGIC DIAGRAM SEISMIC TRIP..... *-*******************************-**8759077........ 495888
- 19. FUNCTIONAL LOGIC DIAGRAM DIGITAL FW CONT SYS INPUT SIGNAL VALIDATION............ 5653074*18..... 495889
- 20. FUNCTIONAL LOGIC DIAGRAM DIGITAL FW CONT SYS FW FLOW CONTROLLER & Cv DEMAN0...... 5653D74*19..... 495890
- 21. FUNCTIONAL LOGIC DIAGRAM DIGITAL FW CONT SYS CONT VCV SEQ & TRACKING LOG[C_.. _... 5653D74*20.. _.. 495891
- 22. FUNCTIONAL LOGIC DIAGRAM DIGITAL FW CONT SYS SIGNAL SELECTOR LOGIC............... 5653074*21..... 495892
- 23. DRAWING INDEX SOLID STATE PROTECTION SYS INTERCONNECTION & SCHEM. DIAGRAM........ 1080442-1 ***** 458826 ORAWtNG TITLc-UNIT No.
Flwl lcJ0INITI l&I I I1sl0ILIAITI Il0INI I I I I I I I I 121 RM INDEXED REV L 16 21 16-44 42 44 PROJECT INSTA.LLATION DIVIS[ON
( DD MAN DRAWING LOCATION TYPE NAME MISC(CODE,
HOURS CADD SOURCE 101 r!A!BILl0I (g
~ IM!DI 11 I I I ~ 0 45-50 51 52 53
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,--,---------,;,--1t-*oS 2
JOHN W, HEFLER
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E*9995 9-30-95 NUCLEAR SAFETY RELATED f--RE-V+--.-E-GI-ST-E-RE_D_E-NG-IN-E-ER-+-1,\\+
SIGNATUR~"'---+-CA-RE_G_N_O.+-E-XP-OA-TE--1 KEY DWG-*SECTION _3_
UNIT 2 COAST VALLEYS DIVISION HICROFILH
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AKM OSGNWESTINGHOtJSE DWN W. ALBOVIAS FUNCTIONAL LOGIC DIAGRAM FEEDWATER CONTROL~ ISOLATION BILL OF HATL DIIG LIST SUPSOS 663 I 95
- I 4 SUPSO BY NO.
DATE DESCRIPTION GM/SPEC OWN CHKD SUPV APVO BY NO.
DATE DESCRIPTION GM/SPEC OWN CHKD SUPV APVD BY R E V I S I O N S R E V I S I O N S I
4 5
6 I 5 - I 7 -9 SUPERSEDED DWG 663195-1<; REV SCHEI£, NOTES 3 &
WAA VAL II AKM BMG CHKOV,A, LIM 4; ADDED NOTES 5 & 6 <DC2-EE-42250J LCV BMG OK I I I NO.
DA TE DESCRIPTION GM/SPEC OWN CHKD SUPV APVO BY R E V I 5 I O N 5 DATE 5*17-91 SCALES NONE 7
DIABLO CANYON DEPARTMENT OF ENGINEERING PACIFIC GAS ANO ELECTRIC COMPANY SAN FRANCISCO, CALIFORNIA SHEET NO, SHEETS 495884 REV 2
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