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IOI > IOI-2 Power Operations > Flashcards

IOI-2 Power Operations Flashcards

1
Q

what is total FW flow and steam flow?

A

18.97 mlbm/hr

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2
Q

what is total core flow?

A

112.5 mlbm/hr (max of 105%)

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3
Q

What do we keep Condensate demin flow between on each demin in:

gpm?

dP?

A

2000-4600 gpm

<25 psid

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4
Q

We keep HDT in cleanup mode (long cycle clean up through demins) until iron is?

A

<100 ppb

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5
Q

If we lose a LPFWH, we limit power to?

A

<90%

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6
Q

If we lose a HPFWH, we limit power to?

A

<95%

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7
Q

Scram test how many rods?

how often?

A

10% of rods

at least once every 120 days

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8
Q

Generator coolers A,B,C,D cold gas differential temperature limitation to maintain within?

A

8F of each other

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9
Q

Recirc single loop ops not to exceed how many gpm?

A

not to 44,600 gpm

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10
Q

ECCS line break only valid when?

A

> 80% power AND >90% core flow

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11
Q

What happens if you enter the scram region?

A

exit immediately

if <2 OPRM, then SCRAM

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12
Q

Steady state values:

total steam flow?

A

18.94 mlbm/hr

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13
Q

Steady state values:

total feedwater flow?

A

18.97 mlbm/hr

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14
Q

steady state values:

total core flow?

A

112.5 mlbm/hr

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15
Q

steady state values:

Steam dome pressure?

A

<1045#

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16
Q

steady state values:

feedwater temperature?

A

420F

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17
Q

steady state values:

reactor power level (thermal)?

A

<4408 Mwt

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18
Q

Who can be assigned to independently verify planned control rod movements and his/her responsibilities?

A

Reactor Engineer, STA or Licensed Operator will be assigned to VERIFY

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19
Q

who must be notified if an EPRI chemistry limit is exceeded during power ascension?

A

Duty Manager should be notified and concurrence obtained before continuing power ascension

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20
Q

What to do when entering the controlled entry region?

A

exit immediately

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21
Q

what to do if entering OPRM Trip Enabled Region?

A

At least three channels of the OPRM upscale function Must be operable WHEN > 16.8% of Rated thermal power. Otherwise, INITIATE alternate methods of stability monitoring (THI watch).

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22
Q

During power ascension, at what power:

verify operability of OPRM Channels?

A

before exceeding 16.8% power

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23
Q

During power ascension, at what power:

Recirc pumps shifted to fast speed?

A

27% power

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24
Q

During power ascension, at what power:

HDPs are placed in pump forward or third CP and CBP is placed in service?

A

40% power

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25
Q

During power ascension, at what power:

FWLC is placed in three element?

A

35-40% power

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26
Q

During power ascension, at what power:

Second RFPT is placed in service?

A

50% power

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27
Q

During power ascension, at what power:

Second circ water pump is placed in service?

A

Prior to exceeding 40% power

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28
Q

During power ascension, at what power:

ACT is placed in service?

A

Prior to exceeding 75% power

29
Q

During power ascension, at what power:

Both HDPs are placed in pump forward OR all CP and CBP are placed in service?

A

approx 70% power

30
Q

During power ascension, at what power:

All HDPs are placed in pump forward AND all CP and CBP are placed in service and the exception to this:

A

approx 75% power

31
Q

DURING A POWER REDUCTION:

First CP and CBP are shutdown?

A

<= 78% power

32
Q

DURING A POWER REDUCTION:

First HDP is shutdown?

A

50%

33
Q

DURING A POWER REDUCTION:

Second HDP is shutdown?

A

40%

34
Q

DURING A POWER REDUCTION:

Verification that FW level control has transferred to single element?

A

26%

35
Q

DURING A POWER REDUCTION:

RPV level control is placed on the startup level controller?

A

3 mlbm/hr

36
Q

DURING A POWER REDUCTION:

First RFPT is shutdown?

A

50%

37
Q

DURING A POWER REDUCTION:

First circ water pump is shutdown?

A

50%

38
Q

DURING A POWER REDUCTION:

Hydrogen injection is removed from service?

A

25-30%

39
Q

DURING A POWER REDUCTION:

Extraction steam to the HPFWHs is removed from service?

A

20%

40
Q

DURING A POWER REDUCTION:

MSRs are removed from service?

A

20%

41
Q

DURING A POWER REDUCTION:

what is core flow when the control rods are first inserted?

A

70 mlbm/hr (62.2%)

42
Q

DURING A POWER REDUCTION:

what is core flow when the OPRMs will be enabled if above 21.8% rated power?

A

< 75% core flow

43
Q

identify reactor power level and determine load line limits for shifting the recirc pumps to slow speed

A

LL between 50-65%

44
Q

identify the generator load at which the main turbine is taken offline

A

100-150 MWe

45
Q

ON A TURBINE COAST DOWN: state the approximate turbine rpm:

Aux oil pump auto start?

A

1300 rpm (95#)

46
Q

ON A TURBINE COAST DOWN: state the approximate turbine rpm:

Shaft lift oil pump auto start?

A

510 rpm

47
Q

ON A TURBINE COAST DOWN: state the approximate turbine rpm:

Turning gear oil valve auto open?

A

210 rpm

48
Q

State the actions for a Rapid Power Reduction

A

LOWER reactor power by reducing recirc flow using slow or fast detent on the Loop Flow Controllers until desired power is reached OR until 62.2% core flow (70 mlbm/hr) is reached

49
Q

identify the reactor power, core flow, and recirc loop drive flow limitations associated with a temporary downpower

A

Stay out of Controlled entry and Scram regions.

50
Q

What is the Full power main generator operating limit for MVAR:

Normal limit? Emergency limit?

A

between -297.5 MVAR and +697.5 MVAR

Normal and emergency limits are the SAME!

51
Q

When one string of HPFWH and one string of LPFWH are out of service, Rx power should not exceed what percent of rated thermal power?

A

90%

52
Q

When a first stage reheater and/or a second stage MSR reheater are(is) out of service, Rx power shouldd not exceed what percent of rated thermal power?

A

95%

53
Q

When one string of LPFWH AND a first stage reheater are out of service, Rx power should not exceed what percent of rated thermal power?

A

90%

54
Q

When one heater drain pump is out of service, Rx power must be limited to what % of rated power?

A

<= 88%

55
Q

if TWO Heater drain pumps are out of service, Rx power must be limited to what % of rated power?

A

<= 79%

56
Q

Aside from one HDP being out of service restrictions…

the heater drain pumps can be safely started or stopped at ANY power level above what percent power?

A

40%

57
Q

When feedwater temperature is within what deg F, of the NORMAL FEEDWATER TEMPERATURE, Figure 5, GGNS C23 power/flow map for reduced feedwater temperature should be used? (what deg F?)

A

when FW drops more than 10F below the normal fw temp

58
Q

What notification (to who??) must be made due to unplanned power changes? and who makes the notification?

A

SMEPA – this notification must be made by Shift Manager and CANNOT be delegated.

59
Q

Exciter Voltage regulator.. Auto or manual?

A

Exciter Voltage Regulator should be in auto at all times WHEN the generator is paralleled to the grid unless the auto voltage regulator fails OR manual voltage control has been approved by the Entergy system dispatcher (TCC)

TCC must be contacted when there is a change in status of the Power system stabilizer (PSS).

PSS will turn OFF when the TVR is transferred to manual

60
Q

Who must be contacted when there is a change in status of the Power system stabilizer (PSS)?

A

TCC (entergy system dispatcher)

61
Q

If the two hour core thermal power average indication is observed to exceed 4408 MWt, what must be done?

A

PROMPT action must be taken to reduce power to <= 4408 MWt

62
Q

The eight hour average of core thermal power is recorded where and when?

and must not exceed?

A

8 hour average of CTP is recorded in the Daily Ops Log at 8 hour intervals and must not exceed 4408 MWt

63
Q

When are the OPRMs auto enabled?

A

> = 21.8% rated thermal power AND <75% recirc flow

64
Q

Why do we not use FW master level controller at less than 3 mlbm/hr?

A

FW flow less then 3 mlbm/hr may cause Rx water level to become unstable when level control is on the FW master level controller. Do NOT shift to FW master level control before 3 mlbm/hr FW flow during power ascension. SWAP to Startup level control before going below 3 mlbm/hr.

65
Q

What happens if any LP stop or control valve fails closed?

A

Rx power AND turbine load should be reduced to less than 79%

66
Q

What are the critical speeds of the RFPT?

A

3100-3200 and 3279-3379 rpm

67
Q

minimize plant operation at power levels between what percent?

why?

A

8-50%

to prevent cracking the EHC drain lines from HPSCVs due to high cycle, low stress fatigue.

68
Q

Shutdown by scram at what percent?

A

25%

69
Q

how does a typical shutdown work?

A

downshift recirc, then manual scram at 25%

IOI (12 decks)

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