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126 Cards in this Set
- Front
- Back
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WHAT IS THE PURPOSE OF THE MAIN TURBINE? |
TRANSFORM THERMODYNAMIC ENERGY OF STEAM INTO MECHANICAL ENERGY |
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DESCRIBE THE DESIGN BASIS OF THE MAIN TURBINE |
-INLET PRESSURE IS DICTATED BY OPTIMUM REACTOR PRESSURE -STEAM QUALITY AND EXHAUST PRESSURE CHOSEN FOR MAXIMUM EFFICIENCY AND MINIMAL BLADE EROSION |
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HOW MANY STEAM LINES SUPPLY THE MAIN TURBINE? |
4 - 24" STEAM LINES |
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WHAT ARE THE FIVE OTHER STEAM LOADS FROM THE EQUALIZATION HEADER? |
1) NINE BYPASS VALVES 2) GLAND SEAL STEAM REGULATOR 3) SJAE REGULATOR 4) OFF-GAS DILUTION STEAM 5) OFF-GAS RECOMBINER PRE-HEATER |
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WHAT ARE THE INPUTS/OUTPUTS FOR THE STEAM CHEST? |
INPUT - STEAM LINES THROUGH STOP VALVES
OUTPUTS - TURBINE CONTROL VALVES (STEAM), CONDENSER (VIA TCV ABOVE SEAT DRAINS) |
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WHAT IS THE FLOWPATH FROM THE HP TURBINE TO THE LP TURBINES? |
1) THROUGH ONE OF FOUR MOISTURE SEPARATORS, 2) THROUGH ONE OF 6 CIV'S 3) INTO ONE OF THREE LP SECTIONS |
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WHAT PUMPS TURBINE OIL FROM THE TANK DURING NORMAL OPERATION? |
TURBINE OIL BOOSTER PUMP (20 PSIG) |
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WHAT IS THE DISCHARGE PRESSURE OF THE TURBINE OIL BOOSTER PUMPS? |
20 PSIG |
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WHAT IS FED BY THE TURBINE OIL BOOSTER PUMP? |
TURBINE MAIN SHAFT OIL PUMP |
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WHAT IS THE OUTPUT PRESSURE OF THE TURBINE MAIN SHAFT OIL PUMP? |
MSOP SUPPLIES OIL AT 230-250 PSIG |
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WHAT DOES THE TURBINE MAIN SHAFT OIL PUMP SUPPLY? |
THE OIL DRIVEN BOOSTER PUMP |
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WHAT IS THE PURPOSE OF THE TURBINE OIL BOOSTER BAFFLER? |
REDUCE PRESSURE FROM 230-250 PSIG (FROM MSOP) DOWN TO 200 PSIG (FOR THE OIL DRIVEN BOOSTER PUMP) |
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WHERE DO THE TURBINE OIL COOLERS DRAW OIL FROM? |
1) DISCHARGE OF THE OIL BOOSTER PUMP TURBINE OR 2) TURBINE DRIVEN OIL PUMP BAFFLER BYPASS |
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WHAT IS THE TURBINE OIL PRESSURE AT THE OIL COOLER OUTLET? |
40 PSIG |
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WHAT IS THE COOLANT FOR THE TURBINE OIL COOLERS? |
SERVICE WATER |
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WHAT IS THE DESIRED TEMPERATURE OF THE TURBINE OIL AFTER THE COOLERS? |
115F |
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WHEN DOES THE TURBINE OIL MOTOR SUCTION PUMP (MSP) AUTO-START? |
MSP STARTS AT 10 PSIG SUCTION PRESSURE OF THE MSOP TO PREVENT LOSS OF PUMP SUCTION
EXPECTED AT <90% RATED TURBINE SPEED |
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THEN DOES THE MAIN TURBINE TURNING GEAR OIL PUMP START? |
TGOP STARTS AT 15 PSIG IN BEARING OIL HEADER TO SUPPLY THE TURNING GEAR AND TURBINE BEARINGS |
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WHEN DOES THE EMERGENCY BEARING OIL PUMP START? |
EBOP STARTS AT <135 MSOP DISCHARGE PRESSURE AND < 25 PSIG TGOP DISCHARGE PRESSURE |
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WHEN DOES THE TURNING GEAR AUTO START? |
0 RPM
AND
> 15 PSIG OIL PRESSURE |
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WHAT IS THE SUPPLY FOR GLAND SEAL STEAM? |
TURBINE THROTTLE VA THE GLAND SEAL FEED VALVE (S1) |
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WHAT IS THE PRESSURE RANGE FOR GLAND SEAL STEAM? |
2.5 TO 5.0 PSIG |
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WHAT IS THE PURPOSE OF THE GLAND SEAL BYPASS FEED VALVE (S2)? |
THE FEED VALVE (S1) IS DESIGNED FOR RATED PRESSURES. THE S2 IS USED FOR LOW PRESSURE OPERATION (<250 PSIG) |
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CONDENSATE FROM THE GLAND STEAM EXHAUSTER GOES WHERE? |
MAIN CONDENSER |
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WHAT IS THE PURPOSE OF HOOD SPRAY? |
COOL THE EXHAUST HOOD DURING LOW LOAD CONDITIONS AND PROMOTE STEAM FLOW |
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WHEN IS HOOD SPRAY INITIATED? |
900+ RPM <10% TURBINE LOAD |
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HOW MANY STAGES ARE IN THE HP TURBINE? |
FIVE |
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WHAT IS THE FLOW PATH THROUGH THE MOISTURE SEPARATORS? |
-HP TURBINE EXHAUST STEAM FLOWS THROUGH THE SEPARATORS (4) -DRAINS TO MOISTURE SEPARATOR DRAIN TANK -99% STEAM EXHAUSTS TO CROSSOVER PIPING, CIV'S, THEN TO LP TURBINE |
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HOW MANY STAGES ARE IN EACH LP TURBINE SECTION? |
ELEVEN |
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HOW MANY CIV'S FEED AN LP TURBINE SECTION? |
2 PER SECTION 3 SECTIONS 6 TOTAL CIV'S |
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WHAT IS THE PURPOSE OF THE CIV'S? |
PREVENT TURBINE OVERSPEED BY FLASHING OF WATER IN MOISTURE SEPARATORS |
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WHERE ARE THE ATMOSPHERIC RELIEF DIAPHRAGMS? |
LP TURBINE EXHAUST HOOD (2 PER HOOD) |
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WHAT PRESSURE WILL RUPTURE THE TURBINE ATMOSPHERIC RELIEF DIAPHRAGMS? |
5 PSIG |
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WHAT IS THE PURPOSE OF THE TURBINE ATMOSPHERIC RELIEF DIAPHRAGMS? |
PREVENT OVERPRESSURIZING THE LP TURBINE AND CONDENSER IF CONDENSER VACUUM IS LOST AND STEAM CONTINUED TO FLOW FROM THE TURBINE |
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HOW MANY JOURNAL BEARINGS SUPPORT THE MAIN TURBINE? |
12 |
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WHERE IS THE MAIN TURBINE THRUST BEARING? |
MIDDLE STANDARD - BETWEEN HP AND LP TURBINES |
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WHAT IS THE LATERAL THRUST SETPOINT FOR THE MAIN TURBINE? |
35 MILS IN EITHER DIRECTION (2/3 LOGIC IN DEHC)
ALARMS AT 30 MILS |
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WHERE IS THE TURNING GEAR? |
BETWEEN LP SECTION C AND THE MAIN GENERATOR |
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WHAT IS THE POWER SUPPLY FOR THE TURNING GEAR? |
MCC 19-3 (29-3) |
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WHAT IS THE PIGGY BACK MOTOR AND WHAT IS ITS POWER SUPPLY? |
MOUNTED ON THE TURNING GEAR, IT ENGAGES THE TURNING GEAR WITH THE TURBINE SHAFT BULLGEAR
POWERED BY MCC 19-3 (29-3) |
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WHAT WILL HAPPEN IF THE PIGGYBACK MOTOR SWITCH IS LEFT ON DURING TURBINE ROLL? |
THE TURNING GEAR WILL CONTINUE TO TRY TO ENGAGE, RESUTLING IN DAMAGE |
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WHAT IS THE PRESSURE LIMIT FOR OPENING A TURBINE STOP VALVE? |
120 PSIG |
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WHICH TSV OPENS FIRST? |
TSV #2 OPENS FULLY BEFORE ANY OTHER TSV. |
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WHERE DO THE ABOVE SEAT DRAINS FOR THE TURBINE STOP VALVES DRAIN TO? |
55' LOOP SEALS (THEN ON TO TBEDS) |
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WHAT IS THE FLOWPATH FOR THE TCV ABOVE SEAT DRAINS? |
FROM THE STEAM CHEST TO THE MAIN CONDENSER |
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WHAT IS THE POWER SUPPLY FOR THE TCV ABOVE SEAT DRAIN MOV'S?
3004-A/B/C/D |
MCC 17-2 (27-2) |
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WHAT IS THE POWER SUPPLY FOR THE TCV BELOW SEAT DRAIN? |
MCC 17-2 (27-2) |
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WHAT IS THE FLOW PATH FOR THE TCV BELOW SEAT DRAIN? |
MO-3005 (ONLY ONE VALVE - AKA LEAD DRAIN VALVE)
HP TURBINE INLET PIPING TO MAIN CONDENSER
VALVE NORMALLY CLOSED BUT ORIFICED BYPASS PROVIDES CONTINUAL DRAINING ONLINE |
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WHEN DO CIV'S OPEN? |
WHEN A TURBINE SPEED IS SELECTED |
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WHEN DO THE CIV'S CLOSE? |
IF NO TURBINE SPEED SELECTED
TURBINE TRIP
FASTC DEPRESSURIZES / FAS ACTUATION
IF TURBINE SPEED REACHES 105% (FULL CLOSED AT 107%) |
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WHAT IS THE INTERLOCK BETWEEN TSV'S AND CIV'S? |
TSV'S FULL OPEN BEFORE OPEN CIV
CIV'S FULL CLOSED BEFORE TSV CLOSES |
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WHERE DO THE CIV ABOVE SEAT DRAINS LEAD? |
55' LOOP SEALS, THEN TBED |
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HOW MANY BYPASS VALVES ARE THERE? |
NINE |
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WHAT IS THE BPV CAPACITY? |
33.3% RATED STEAM FLOW |
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WHAT IS THE PURPOSE OF THE LP TURBINE RELIEF VALVES? |
SPROTECT THE CROSSOVER PIPING AND MOISTURE SEPARATORS FROM INADVERTENT CIV CLOSURE
ONE PER CIV, PLUS AN EXTRA (7 TOTAL) |
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WHERE DO THE LP TURBINE RELIEFS VALVES DISCHARGE AND AT WHAT PRESSURE? |
TO THE MAIN CONDENSER
BETWEEN 297 AND 315 PSIG
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WHAT IS THE PURPOSE OF THE EXTRACTION NON RETURN VALVES? |
PROTECT THE TURBINE FROM OVERSPEED AFTER TURBINE TRIP IF WATER IN FW HEATERS FLASHES |
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WHAT COMPONENTS ARE LUBRICATED BY MAIN TURBINE OIL? |
TURBINE/GENERATOR JOURNAL BEARINGS
THRUST BEARING
TURNING GEAR |
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WHAT IS THE MAIN SHAFT OIL PRESSURE LIMIT? |
IF MSOP DICHARGE PRESSURE < 105 PSIG
AND TURBINE > 1300 RPM,
TURBINE TRIPS |
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WHAT IS THE POWER SUPPLY FOR THE MOTOR SUCTION PUMP (MSP)? |
MCC 17-2 (27-2) |
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WHAT IS THE POWER SUPPLY FOR THE TURNING GEAR OIL PUMP (TGOP)? |
MCC 19-3 (29-3) |
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WHAT IS THE POWER SUPPLY FOR THE EMERGENCY BEARING OIL PUMP (EBOP)? |
NON-ESSENTIAL 250 VDC |
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WHAT ARE THE POWER SUPPLIES FOR THE TURBINE LIFT PUMPS? |
MCC 19-3 (29-3) |
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HOW MANY TURBINE LIFT PUMPS AND MOTORS ARE THERE? |
5 MOTORS
10 PUMPS |
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WHERE ARE THE TURBINE LIFT PUMPS? |
6 FOR THE HP SECTION 4 FOR THE LP / MG SECTION
ALL ON TURBINE DECK |
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WHAT IS THE POWER SUPPLY FOR THE VAPOR EXTRACTOR? |
MCC 17-2 (27-2) |
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WHAT IS THE POWER SUPPLY FOR THE TURBINE LUBE OIL FILTERS? |
MCC 17-1 (27-1) |
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WHERE ARE THE TURBINE LUBE OIL FILTERS? |
TB 595 13 LINE |
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WHAT IS THE POWER SUPPLY FOR THE TURBINE LUBE OIL TRANSFER PUMPS? |
MCC 17-1 (27-1) |
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WHAT IS THE POWER SUPPLY FOR THE GLAND SEAL STEAM FEED VALVE (S1)? |
MCC 15-1 (25-1) |
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WHAT IS THE SETPOINT FOR THE GLAND SEAL STEAM PRESSURE CONTROL VALVE? (-124) |
4 PSIG
(2.5 - 5 PSIG) |
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HOW DOES THE GLAND SEAL STEAM PRESSURE CONTROL VALVE FAIL ON A LOSS OF INSTRUMENT AIR? |
FAILS OPEN |
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WHAT IS THE POWER SUPPLY FOR THE GLAND SEAL STEAM BYPASS VALVE (S2)? |
MCC 15-1 (25-1) |
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WHAT ARE THE RELIEF VALVE SETPOINTS FOR THE GLAND SEAL STEAM SUPPLY? |
120 PSIG ON BYPASS LINE
20 PSIG (x2 ON SUPPLY HEADERS) |
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WHAT IS THE POWER SUPPLY FOR THE GLAND SEAL STEAM UNLOADING BYPASS VALVE? |
MCC 15-1 (25-1) |
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HOW DOES THE GLAND SEAL STEAM UNLOADING PRESSURE CONTROL VALVE FAIL ON A LOSS OF AIR? |
FAILS CLOSED |
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WHAT COOLS THE GLAND STEAM CONSENDERS? |
CONDENSATE |
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HOW DOES THE GLAND STEAM CONDENSER LEVEL CONTROL VALVE FAIL ON A LOSS OF AIR? |
FAILS CLOSED
OVERFLOWS VIA LOOP SEAL TO TBEDS |
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WHAT IS THE POWER SUPPLY FOR THE GLAND EXHAUSTERS? |
MCC 15-1 / MCC 16-3 (25-1/26-3) |
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WHAT ARE THE TURBINE LUBE OIL LEVEL ALARMS? |
-4" LO LEVEL +4" HI LEVEL +32" HI HI LEVEL |
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WHAT ARE THE TURBINE VIBRATION ALARMS? |
HI 7 MILS ON BEARINGS 3 THROUGH 12
HI HI 10 MILS ON ANY BEARING
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WHAT IS THE LIMIT ON TURBINE SHELL TEMPERATURE DELTAS? |
150F INSIDE/OUTSIDE |
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WHAT IS THE HEATUP LIMIT FOR TURBINE STARTUPS? |
150F/HOUR |
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WHEN IS A FAST TURBINE STARTUP ALLOWED? |
WHEN FIRST STAGE BOWL TEMPERATURE > 350F
FAST IS 180 RPM/MINUTE |
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WHAT IS THE SUCTION SOURCE FOR RWCU? |
B RECIRC LOOP
BOTTOM HEAD DRAIN |
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WHAT IS THE PURPOSE OF RWCU? |
1) REMOVE IMPURITIES/MATERIALS FROM COOLANT 2) PRVENT BUILDUP OF IMPURITIES FROM CONCENTRATING IN THE VESSEL 3) REDUCE SECONDARY GAMMA/BETA SOURCES 4) REMOVE COOLANT FROM REACTOR AT LOW POWER LEVELS |
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HOW MANY REGENERATIVE HEAT EXCHANGERS ARE IN RWCU? |
THREE (IN SERIES) |
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HOW MANY NON-REGENERATIVE HEAT EXCHANGERS ARE THERE IN RWCU? |
4 - 2 SETS OF 2 IN PARALLEL (BOTH NORMALLY ONLINE) |
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WHAT IS THE NORMAL NON-REGENERATIVE HEAT EXCHANGER OUTLET TEMPERATURE?
WHAT IS THE LIMIT? |
NORMAL < 120
LIMIT 140F FOR ISOLATION |
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WHAT ARE THE POWER SUPPLIES FOR THE RWCU ISOLATION VALVES? |
1201-2 MCC 18-1A 1202-5 250 VDC BUS 1A 1202-80 MCC 19-1 |
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WHAT ARE THE RWCU ISOLATION SIGNALS? |
0" RX LVL SBLC START HIGH AREA TEMP (185 IN D HTR BAY / 200 MSIV ROOM) 140F NRHX OUTLET TEMP LOSS OF A OR B RPS LOSS OF ESS |
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WHAT ARE THE RWCU PUMP TRIPS? |
LOW FLOW - 55 GPM HIGH BEARING TEMP (138F U1 / 140F U2) -2 OR -5 VALVE NOT FULL OPEN -80 FULL CLOSED |
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WHAT ARE THE RWCU DEMIN ISOLATION SIGNALS? |
HIGH FILTER DP (30 PSID)
HIGH POST STRAINER DP (10 PSID) |
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WHAT ARE THE RWCU PUMP POWER SUPPLIES? |
A - 18-3 B - 19-1 |
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WHAT ARE THE RWCU PUMP FLOW LIMITS? |
MIN FLOW - 115 GPM MAX FLOW, 1 PUMP - 260 GPM MAX FLOW, 2 PUMPS - 520 GPM IF <100# RX PRESSURE, 410 GPM |
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WHAT IN RWCU IS POWERED BY MCC 18-3? |
PUMP A DEMIN BYPASS VALVE MAIN CONDENSER REJECT VALVE (-78) RADWASTE REJECT VALVE (-77) REJECT LINE ORIFICE BYPASS VALVE (-76) |
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WHAT PRESSURES WILL ISOLATE THE RWCU REJECT FLOW CONTROL VALVE (-1239)? |
5 PSIG UPSTREAM (PREVENT DRAINING)
140 PSIG DOWNSTREAM (PROTECT PIPING) |
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WHAT ARE THE EHC PUMP POWER SUPPLIES? |
MCC 15 AND 17 (25 AND 27) |
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WHAT IS SUPPLIED BY MCC 17-1 (27-1) FOR THE EHC SYSTEM? |
EHC OIL HEATER / FANS
TRANSFER PUMP
FILTER PUMP |
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WHAT SUPPLIES POWER FOR THE TURBINE SUPERVISORY PANEL? |
INSTRUMENT BUS |
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WHAT IS THE SETPOINT FOR THE EHC PRESSURE SCRAM? |
< 460 PSIG IN FASTC HEADER
ONLY IF <38.5% CTP (ACTUAL 199.4# IST STAGE TURBINE PRESSURE) |
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CAN OPERATION CONTINUE IF A TURBINE BPV IS DECLARED INOP? |
1) IF THE MFLCPR TECH SPEC CAN BE MET WITH THE PENALTY APPLIED, THEN YES.
2) IF MFLCPR CANNOT BE MET WITH THE PENALTY, THEN MUST BE RESOTRED WITHIN 2 HOURS OR BE BELOW 25% WITHIN ADDITIONAL 4 HOURS |
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WHICH TURBINE VALVES ARE THROTTLEABLE? |
MSV 2
TCV'S
INTERCEPT VALVES 1, 3, 5
BYPASS VALVES |
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WHICH VALVES ARE CLOSED WHEN FASTC IS ISOLATED? |
TCV'S
INTERCEPT VALVES |
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WHICH VALVES ARE CLOSED WHEN ETS IS DEPRESSURIZED? |
INTERMEDIATE STOP VALVES
MAIN STOP VALVES
EXTRACTION DUMP VALVE
RELAY TRIP VALVE (ISOLATES FASTC) |
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WHAT ARE THE ALARM POINTS FOR EHC FLUID TEMPERATURE? |
LOW - 105F HIGH - 130F
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WHAT IS THE SETPOINT FOR THE TSV CLOSED TRIP ALARM? |
5% CLOSED (TS AV = 9.7%)
WILL GIVE SCRAM IF > 38.5% AND TSV'S < 95% OPEN |
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WHAT ARE THE ALARMS FOR EHC FLUID LEVEL? |
HIGH HIGH: 2" BELOW TOP OF TANK (+16") HIGH: 14" BELOW TOP OF TANK (+4") LOW: 22" BELOW TOP OF TANK (-4")
>1.25"/100 HOURS CHANGE (ONLINE) >5"/HOUR (OFFLINE) |
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WHAT IS THE POWER SUPPLY FOR DEHC? |
DEHC UPS NROMALLY FED BY INSTRUMENT BUS AUCTIONEERED WITH COMPUTER UPS |
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WHAT CAUSES A STATOR COOLING RUNBACK OF THE MAIN TURBINE? |
LOW FLOW - 500 GPM HIGH TEMP - 80C (WINDING TEMP) LOW PRESSURE - 26.18 OR 32.6 PSIG (U1/U2)
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WHAT HAPPENS WHEN A STATOR COOLING RUNBACK IS INITIATED? |
LOAD SET TO 25% (15 SEC DELAY) TURBINE TRIP IF RUNBACK TOO SLOW
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WHAT IS A POWER-LOAD UNBALANCE? |
40% MISMATCH BETWEEN %RATED STATOR AMPS AND LP CROSSOVER PRESSURE
LOAD SET RUNBACK TO 2%
ACTUATES FAS FOR TCV'S AND IV'S |
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WHAT HAPPENS IF A SPEED OTHER THAN 1800 RPM IS SELECTED FOR THE MAIN TURBINE? |
LOAD SET RUNS BACK TO 2% |
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WHAT IS THE BPV OPENING PERMISSIVE? |
7" HG VACUUM IN MAIN CONDENSER |
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WHERE IS LOCAL INDICATION OF MAIN STEAM THROTTLE PRESSURE? (D-RING) |
OUTSIDE MSIV ROOM |
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WHERE IS LOCAL INDICATION OF STEAM CHEST PRESSURE? |
2251-1 RACK (2ND FLOOR TB BY TURBINE OIL TANKS) |
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WHAT GENERATES THE 'PRESSURE SET LOW' ALARM IN THE MCR? |
DP BETWEEN PRESSURE SET AND RX PRESSURE:
<100 PSID @ 300 PSIG RX PRESSURE
<10 PSIF @ 900 PSIG REACTOR PRESSURE
INTERPOLATED BETWEEN 300-900 PSIG |
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WHEN DOES POWER LOAD UNBALANCE GENERATE A REACTOR SCRAM? |
IF >38.5% CTP.
WHEN FASTC PRESSURE AT CV'S DROPS < 460 PSI |
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WHAT TEMPERATURE GIVES THE TURBINE EXHAUST HOOD HIGH TEMP ALARM? |
>225F |
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WHAT TEMPERATURES ARE THE TURBINE STEAM CHEST AND HP SHELL WARMED TO? |
250F - HP SHELL
500F - STEAM CHEST |
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WHAT IS NORMAL EHC PRESSURE? |
1500 PSIG |
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WHAT IS THE SETPOINT FOR EHC PUMP AUTO-START? |
1300 PSIG |
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WHAT IS THE SETPOINT FOR EHC RELIEF VALVES? |
2000 PSIG |
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WHAT EHC PRESSURE WILL TRIP THE MAIN TURBINE? |
1100 PSIG (IN THE FAS HEADER) |
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WHAT ARE THE OVERSPEED TURBINE TRIP SETPOINTS? |
110%
110.3% BACKUP |
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WHAT COOLS EHC FLUID? |
TBCCW |
