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Systems > 2.4 Entry Conditions > Flashcards

2.4 Entry Conditions Flashcards

1
Q

2.4 Loss Of Vacuum Entry

A
  1. Unexpected lowering vacuum
  2. Unexpected LP Turbine pressure rising
  3. SJAE inlet pressure low out of green band
  4. SJAE flow HI/LOW
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2
Q

2.4 Extraction Steam Entry

A
  1. Abnormal FW Temp HI/LOW
  2. FW Htr Trip
  3. Moisture Sep HI LVL
  4. FW Htr bypassed
  5. Erratic Main Condensate system flow
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3
Q

2.4 Loss Of Vacuum Imm Axns

A

Decrease power per 2.1.10 to maintain vacuum 23”hg

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4
Q

2.4 Loss Of Vacuum Scram Axns

A

If vacuum CANNOT be maintained 23”hg:
9-5-2/C-4 clear, Scram/2.1.5
9-5-2/C-4 in, Trip Turbine/2.2.77 if not scrammed

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5
Q

2.4 Extraction Steam Imm Axns

A

If Rx Pwr >100%, decrease per 2.1.10

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6
Q

2.4 Extraction Steam Scram Axns

A
  1. If operating in unanalyzed region
  2. Any reheat stop valve or intercept valve close
  3. Moisture seperator HI LVL in continuous >4 minutes WITH associated #5 htr HI LVL TRIP
  4. Main Turbine Vibes >= 2 mils on bearings 3/4/5/6
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7
Q

2.4 Reactor Power Entry

A
  1. Unexplained rise or lowering of Rx Power
  2. Uncontrolled power oscillations outside SER
  3. Power fails to rise with increase in total core flow
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8
Q

2.4 Reactor Power Imm Axns

A
  1. If power rising, lower power per 2.1.10
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9
Q

2.4 Reactor Power Scram Axns

A
  1. If power rise not terminated by imm axns, Scram/2.1.5
  2. If power is undergoing significant, uncontrolled oscillations, Scram/2.1.5
  3. If 2 or more LPRMs >= 100 W/cm2, Scram/2.1.5
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10
Q

2.4 Reactor Level Entry

A
  1. Erratic/unexplained level changes

2. Level fails to follow power changes

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11
Q

2.4 Reactor Level Scram Axns

A

Level cannot be maintained > +12” NR or < +50” NR

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12
Q

2.4 TEC Entry

A
  1. HI TEMP alarms on multiple TEC cooled components

2. Abnormal use of demin water

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13
Q

2.4 TEC Scram Axns

A
  1. TEC pressure CANNOT be restored/maintained >55# and component temps are rising and do not stabilize, then Scram/2.1.5, trip MT, rapidly lower Rx Pressure to 500-600# with BPV per 2.2.71
  2. If SW to TEC has been lost and cannot be restored,
    then Scram/2.1.5, trip MT, rapidly lower Rx Pressure to 500-600# with BPV per 2.2.71
  3. If TEC surge tank lvl LOW OOS and cannot be restored, Scram/2.1.5 and trip MT
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14
Q

2.4 RPIS Entry

A

Loss of MORE THAN 1 CR PI

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15
Q

5.2 SW Entry

A
  1. SW header pressure lowering
  2. 36 and/or 37 automatic isolation
  3. Indication/report SW piping failure
  4. SW pump trip causing LP isolation
  5. River level at or forecasted to lower < = 865’
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16
Q

5.2 SW Scram Axns

A
  1. SW system pressure <38# in BOTH loops AND SW cooling CANNOT be restored to TEC
  2. E Bay cannot be maintained >865’
17
Q

5.2 REC Entry

A
  1. REC hdr < = 62#
  2. Rising temp on REC cooled equipment
  3. Multiple low flow or pump alarms on VBD-M
18
Q

5.2 REC Imm Axns

A

If header pressure < = 62#, start available REC pumps. If REC pressure is not restored, close 710 - RWCU NRHX INLET and 1329 - ARW SUPPLY

19
Q

5.2 REC Scram Axns

A
  1. If imm axns do not restore header pressure

2. If SW lost to BOTH REC HXs

20
Q

2.4 GEN-H2 Entry

A
  1. Abnormal H2 gas/pressures
  2. Abnormal Gen Stator temps/vibes
  3. Abnormal H2 Seal Oil pressures
  4. Abnormal exciter amps/volts
  5. Active H2 leak
  6. Main Generator VR in manual
  7. Rapid uncontrolled changes in MWs/MVARs
21
Q

2.4 GEN-H2 Scram Axns

A 
1. Abnormal Air Side Seal Oil
<50# PI or 0# D/P
Scram and Trip MT
2. Abnormal H2 Drain Regulator Tank Level
Both H2 Side Drain Reg Tank LOW (LI) or OOS Low (LOCAL) AND Gen H2 pressure lowering OR H2 detected in Seal Oil Pump Room
Scram and Trip MT
3. Abnormal H2 Gas Pressure or H2 Leakage
Generator Pressure <30#
Scram and Trip MT
4. Abnormal Stator of Gas Temperatures
Stator Temp > = 210F
Scram and Trip MT
22
Q

2.4 Turbine Entry

A
  1. Rising turbine or generator vibes
  2. Rising thrust/journal bearing metal or drain oil temp
  3. LP Exh Hood A and/or B temp rising
  4. Exh Hood Spray pressure outside normal range (200-300#) when hood spray required
  5. Low bearing oil pressure
  6. Low lift pump discharge or lift pump fails to start
  7. Emergency bearing or Turning gear oil pumps fail to start.
  8. Dropping/low GS exhaust pressure
  9. Abnormal GS pressures
  10. Abnormal SJAE flows
  11. Steam leaking into TB from seals
  12. TB Eff RM alarming
  13. Failure of loop seal or reservoir loop seal vapor extractor
  14. Stuck close TSV or GV
23
Q

2.4 Turbine Scram Axns

A
  1. HI Vibes - Bearings 1-8 > = 14mils with changing vibe levels on at least 1 other bearing
  2. Thrust Bearing - Metal > = 225F or > = 70F
  3. Exhaust Hood - LP Exh Hood temp > = 230F for > = 15 min
  4. Turning Gear and Emergency Oil Pumps fail
  5. Diff Exp #1 LONG & > = .5” Gov End
    Diff Exp #2 LONG & > =.55” GEN End
  6. Diff Exp #1 SHORT & > = .1”
    Diff Exp #2 SHORT & > = .05”
  7. Bearing Metal > = 225F
  8. Drain Oil > = 180F
  9. If GOV Valve on other side of stop valve closed AND cannot be reopened immediately

Systems (4 decks)

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