ML21305A319
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IIOTES:
LEGEND AIR SIDE SEAL OIL-------
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I. HYDROGEl,J SIDE & AIR SIDE SEAL OIL PIPIIIG-{><}-
HAS BEEN INSULATED, SEE AR A0543807, VALVE (NORMALLY OPEN!
VALVE (NORHALLY CLOSED 1 VALVE (NORMALLY THROTTLED!
CHECK. VALVE PRESSURE GAUGE THERHOHETER PI-2 200 HYDROGEN INNER-COOLED TURBINE GENERATOR
- 2.
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I ~ILET FLANGE SPACER 1.610" ID, 3,375" OD, 0.145" THICK ASIS GR70.
MA I r1 BEAR I NG------- -
111~' I MAIN OIL FEED BEARING (i;rl c) 0 IL FE ED 1-V---f~-1c-~,__+--_-'+..,""""+,I ~----------------~
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HYDROGEII SEAL CONBINED BEARING OIL AND E><CITER Ehl TUR BI 11 E END t ---SEE J1JOTE I
AIR SIDE
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AIR SIDE SEAL OIL DRAIII --- -- ---
___________ -- --....[@]:==I-::-~I===--=
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FROM GEIN BRG OIL ORA I ~I LOOP SEAL "DEFOAMUIG TA~II< LEVEL rto\\
l HIGH" ALARN LS-2 --- -- -- --- -
t !1---------,---------,
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BRG OIL OPE~IS WHEII SEAL OIL PRESSURE HYDROGEN SIDE SEAL OIL RETURN RETURN DECREASES TO 8 PSIG ABOVE o IL ORA I [j I
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HYDROGE~I PRESSURE PCV-I 08 I
I PRESSURE EQUALIZING 1
FLOAT VALVE OPENS WITH HIGH
,. 208 0 IL LEVEL.
JACKS PROV I OED FOR
£ OPENING OR CLOSING VALVE IN EMERGENCY-I FLOAT VALVE OPENS WITH LOW OIL
- ,:209 I
VALVES EQUALIZE-1 HYDROGE~I SI DE AIID
-- L AIR SIDE SEAL OIL PRESSURES AIR SIDE-HYDROGEN SIDE DIFFERENTIAL PRESSURE
- GAUGE, RAJ,IGE Mll*IUS 25" H2 0 TO PLUS 25" H2 0 NORMAL OPERATION PLUS OR Mll!US PI -LI 2" H 2 0 HYDROGEN SIDE SEAL--
OIL PRESSURE GAUGE RAINGE OTO 160 PSIG SEAL OIL THERMONETER (T!-2J RAIJGE 30 TO 180° F.
FILTER DC-663282-75
- (235C-B I 35)
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TE 281 210
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PCV 28 239_i
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THERHOCOUPLES
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LOCK TH I S VALVE I IN -
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THROTTLED POSITION
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PS-I I
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CLOSES WHEN D I F F ER E rn I A L p R Es s -
URE DECREASES TO 5 PSI ON CLOSING, SWITCH [ill IIIITIATES THE "HYDROGEI! SI DE SEAL OIL PUHP-OFF" ALARM
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HYDROGEN -
LEVEL.
JACKS PPOVIDED FOP OPENING OR CLOSING VALVE IN EMERGENCY I
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HYDROGEl*I SIDE
- DR~III REGULATOR 0-0,._
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H Y o Ro G E 1:1 s I D E Low I
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<281 2321 FEED LEVEL ALARIA LS 3
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,:2 3 3 TEST GAUGE RAIJGE
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0 TO 160 PSI Pl-7I9 TEST
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Pl AIR SIDE SEAL OIL PRESSU~E VALVE 2
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GAUGE RAI\\JGE O TO 160 PS I G PI=~,
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PRESSURE SWITCH PS-4A CLOSES
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291 AIJD ALARMS WHE~J OIL PRESSURE
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SV 266 268
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t PS-6 PRESSURE SW! TCH [DJ CLOSES WHEI!
TURBINE OIL BACKUP PRESSURE DECREASES TO 85 PSIG AT THE SEALS AND GIVES ALARl*I "SEAL OIL TURB I j.JE BACK.UP PRESSURE-LOW" (161Y-Bl34)
T ES T GAU G E RA r1 G E 0 TO 160 PSIG 1
~-PRESSURE REDUCING VALVE
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1 I 25 PS I G OUTLET PCV-30 I
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- ~-PPESSUPE RELIEF VALVE SET AT 150 PSIG RV-65 NOTE 2 I
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11 l,*;*,--MAihi TURB!ljE OIL 125 TO 300 PSIG (' 1-=l 2c)
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TO MAIN OIL SYSTEN-SEE
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> TURBINE CONTROL AND OIL SYSTEH DIAGRAN FOR AT THE SEALS I !!CREASES TO 15 PS I A
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- CLOSING, SWITCH PS-4B INITIATES
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- i COHPLETE INFORMATION BEARING OIL RANGE 5 TO 15 PSIG
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--ORIFICE PLATE R0-I00 ALARM AIID ALSO ACT I VATES THE
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BACK.UP PUMP WHEl\\1 THE OIL
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PRESSURE AT SEALS IS 5 PSI (20I48-C(-
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.. : -----DIFFEREl11TIAL PRESSURE ABOVE H2 PRESSURE.
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REGULATOR MAJJ\\ITAJI\\IS OIL
-ELECTROIIIC
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PRESSURE AT SEALS AT (161Y-Bl34)
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- 12 PS I ABOVE HYDROGEIJ SEAL OIL THERMO-PIS
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IF A Bl F PIS PT-I79 jO~ f"7~04 f 1
HETER RANGE 30 TO 551A I
~. V-9 551B (172A-El34)1:'"'1
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I PRESSURE PCV-107 180° F TI - I V-3 V-S c.,--.,i-i> ""'
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- - PRESSURE RELIEF VALVE V-2 [~~ +
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259 SEAL OIL
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SET AT 150 PSIG RV-6LI (20I48-C<-(--. -s[1<:
--~
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BACKUP ~
POUTHOPR --
RV-63 PRESSURE RELIEF VALVE SET AT 150 PSIG S-'1~'2S TE PUl*1Jp H
( 2 3 2 C -A I 3 5 )
,------1,---------i I
I TE-404 I
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AIR SIDE DUPLEX FILTER i
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' i PROVISIONS ~~~R~16~~~~1~~~
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---.1 DIFFERENTIAL PRESSURE SWITCH~ CLOSES WHElj PRESSURE DIFFERENTIAL ACROSS PUMP INCREASES TO 5 PSIG PS-3 (168Y-Bl34)
- -- DIFFERENTIAL PRESSURE SWITCH FOR AIR SIDE DUPLEX FILTER (TYP!
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-- * - - - - PRESSURE SW! TCH [DJ CLOSES
(
I 65Y-8 I 34)
BOUNDARY OF SEAL---
OIL SUPPLY UINIT SIDE SEALl-rfh_ PUMP
=
OIL PUMP~ MOTOR SEAL OIL SUPPLY TI-3
/41-'=r-' TEST GAUGE _J /
~-~
1 WHEII DI FFEREIIT I AL PRESSURE 257:
RAINGE O TO SEAL OIL F*UHP *===:
i 1'f 200 PS I G 254 --,
PUMP f[1D= MOTOR DECPEASES TO 5 PS I. Oil CLOSJJ1JG SWITCH [DJ HIITIATES THE "AIR SIDE SEAL OIL PUJvJp OFF" ALARH PS-2 (164Y-Bl34) 31-P:OIC 3 Size
....___. __________ __._,' /.,i---,, '"sJ,---1, '"1""
255 260 I
~
SEAL OIL DIAGRAM 03-07-2016 ZIIS4 FxC2 111/A fJOT REQUIRED PER CF3. IDS REVISED PER DFT-7*35I4
~======
ELECTRICAL COl'J~IECT I ON 101 PRESSURE SWITCH RELIEF VALVE ORIFICE
=~ SOLEljOID VALVE OIL ALARMS
[i5j DEFOAH I IIG T AIIK LEVEL-HIGH
[DJ AIR SIDE SEAL OIL PUNP-OFF
@_]
SEAL OIL PRESSURE-LOW
[DJ SEAL OIL TURB I INE BACKUP PRESSURE-LOW
[ill HYDROGEIJ SI DE SEAL OIL PUMP-OFF
~ AIR SIDE SEAL OIL BACl<UP PUNP-RUl1lhlll!G CONDENSED OPERATING INSTRUCTIONS SEE INSTRUCTION BOOK FOR COMPLETE OPERATING INSTRUCTIONS GENERAL-SEAL OIL PRESSURE MUST BE MAINTAINED AT THE HYDROGEN SEALS WHEN HYDROGEN IS IN THE GENERATOR OR WHEN THE SHAFT IS TURI! I l'IG, THE HYDROGEN PRESSURE MAY BE VARIED UP TO 75 PSIG, SEAL OIL PRESSURE IS NORMALLY HAINTAINED AT 12 PSI ABOVE THE HYDROGEN
- PRESSURE, 3 PSI IS REQUIRED TO MAIINTAIIN A SEAL WHE~I RUll~IIl!G.
THE VAPOR EXTRACTORS SHOULD BE OPERATED CONTINUOUSLY WHEN THE GENERATOR IS FILLED WITH HYDROGEN.
HYDROGEN SHOULD BE PURGED FROM THE GENERATOR BEFORE HAIN OIL RESERVOIR IS DRAINED, THE GENERATOR CAN BE OPERATED WITH THE HYDROGEN SIDE SEAL OIL PUMP OFF, DUPLEX FILTERS PROVIDE FOR ON-LINE FILTER ELEMENT REPLACEMENT, PEFEP TO INSTRUCTION MANUAL DC-663280-4I SEAL OIL SUPPLY-EHERGENCY SOURCES HAIN OIL PUNP ON TURBINE SHAFT SEAL OIL BACKUP PUHP WILL MAINTAIN 75 PSIG ON MAIN OIL RESERVIOR HYDROGEN PRESSURE AIR SIDE SEAL OIL BACKUP PUHP TURNING GEAR BEARING OIL PUHPS-WILL HAINTAIN 2 PSIG HYDROGEN PRESSURE THE TURBINE BACKUP REGULATOR VALVE 264 OPENS WHEN THE DIFFEREN-TIAL PRESSURE AT THE SEALS DECREASES TO 8 PSI, THEN IF THE SEAL DIFFERENTIAL PRESSURE DECREASES TO 5 PSI, PRESSURE SWITCH@_]
ACTIVATES THE AIR SIDE SEAL OIL BACKUP PUHP ON THE SEAL OIL UNIT AND THE DIFFERENTIAL PRESSURE IS RESTORED TO 12 PSI, THE NEXT AVAILABLE SOURCES OF EHERGENCY OIL AFTER THE AIR SIDE SEAL OIL BACKUP PUHP ARE THE TUPNING GEAP BEAPING OIL PUMPS ON THE HAIN OIL RESERVIOR.
THESE CAN MAINTAIN A HYDROGEN PRESSURE OF 2 PSIG ONLY.
WHEN THE AIR SIDE SEAL OIL BACKUP PUMP IS RUN-NING, HYDROGEN PRESSURE SHOULD BE REDUCED TO 2 PSIG IF THE SEAL OIL BACKUP PUMP ON THE RESERVIOR IS NOT AVAILABLE.
TO PLACE EQUIPHENT IN OPERATION-SET VALVES AS INDICATED, START AIR SIDE SEAL OIL PUHP AND FILL DEFOAMING TANKS AND HYDROGEN SIDE DRAIN REGULATOR, START HYDROGEN SIDE SEAL OIL PUMP, EQUIP-MENT IS THEN IN NORMAL OPERATION, LJ I~ I T DIABLO CANYON POWER TURBINE AND GENERATOR ASSOCIATED DRAW I I\\IG SHEET PAGE 02022 0
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