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LCO > 3.8 "Electrical Power Systems" > Flashcards

3.8 "Electrical Power Systems" Flashcards

1
Q

LCO 3.8.1 title

A

AC Sources - Operating

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2
Q

LCO 3.8.1 requirement

A

The following AC electrical sources shall be operable:

  • 2 qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System
  • 2 EDGs, each capable of supplying 1 train of the onsite Class 1E AC Electrical Power Distribution System
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3
Q

LCO 3.8.1 applicability

A

Modes 1-4

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4
Q

LCO 3.8.1 required actions < 1 hour

A
  • 1 offsite circuit inoperable, then perform offsite source checks for the operable offsite circuit w/in 1 hour
  • 1 EDG inoperable, then perform offsite source checks w/in 1 hour
  • 3 or more AC sources inoperable, then enter LCO 3.0.3 immediately
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5
Q

LCO 3.8.2 title

A

AC Sources - Shutdown

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6
Q

LCO 3.8.2 requirement

A

The following AC electrical sources shall be operable:

  • 1 qualified circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System
  • 1 EDGs, each capable of supplying 1 train of the onsite Class 1E AC Electrical Power Distribution System
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7
Q

LCO 3.8.2 applicability

A
  • Modes 5 and 6

- During movement of irradiated fuel assemblies

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8
Q

LCO 3.8.2 required actions < 1 hour

A
  • The required offsite circuit inoperable, then declare affected required feature(s) with no offsite power available inoperable OR suspend core alterations and movement of irradiated fuel assemblies, initiate action to suspend operations involving positive reactivity additions, AND initiate action to restore required offsite power circuit to operable immediately
  • The required EDG inoperable, then suspend core alterations and movement of irradiated fuel assemblies, initiate action to suspend operations involving positive reactivity additions, AND initiate action to restore required EDG to operable
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9
Q

LCO 3.8.3 title

A

Diesel Fuel, Lube Oil, and Starting Air

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10
Q

LCO 3.8.3 requirement

A
  • For each EDG, the stored fuel oil, lube oil, and starting air subsystem shall be w/in limits, and both diesel fuel oil transfer systems shall be operable
  • Separate Condition entry is allowed for each EDG
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11
Q

LCO 3.8.3 applicability

A

When associated EDG is required to be operable

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12
Q

LCO 3.8.3 required actions < 1 hour

A

Required action and associated completion time not met OR stored fuel oil, lube oil, or starting air subsystem not w/in limits for reasons other than fuel oil or lube oil inventory < 7 day supply and > 6 day supply, or fuel oil properties not w/in limit, then declare associated EDG(s) inoperable immediately

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13
Q

LCO 3.8.4 title

A

DC Sources - Operating

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14
Q

LCO 3.8.4 requirement

A

The Left Train and Right Train DC electrical power sources shall be operable

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15
Q

LCO 3.8.4 applicability

A

Modes 1-4

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16
Q

LCO 3.8.4 required actions < 1 hour

A

NONE

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17
Q

LCO 3.8.5 title

A

DC Sources - Shutdown

18
Q

LCO 3.8.5 requirement

A

DC electrical power source(s) shall be operable to support the DC electrical power distribution subsystem(s) required by LCO 3.8.10 “Distribution Systems - Shutdown”

19
Q

LCO 3.8.5 applicability

A
  • Modes 5 and 6

- During movement of irradiated fuel assemblies

20
Q

LCO 3.8.5 required actions < 1 hour

A

1 or more required DC electrical power sources inoperable, then declare affected required feature(s) inoperable OR suspend core alterations, suspend movement of irradiated fuel assemblies, initiate action to suspend operations involving positive reactivity additions, AND initiate action to restore required DC electrical power source(s) to operable status

21
Q

LCO 3.8.6 title

A

Battery Cell Parameters

22
Q

LCO 3.8.6 requirement

A
  • Battery cell parameters for the Left Train and Right Train batteries shall be w/in limits
  • Separate Condition entry is allowed for each battery
23
Q

LCO 3.8.6 applicability

A

When associated DC electrical power source(s) are required to be operable

24
Q

LCO 3.8.6 required actions < 1 hour

A
  • 1 or more batteries with 1 or more cell parameters not w/in Category A or B limits, then verify pilot cells electrolyte level and float voltage meet Table 3.8.6-1 Category C limits w/in 1 hour
  • Required action and completion time not met from condition above, 1 or more batteries w/average electrolyte temperature of the representative cells < 70 F, OR 1 or more batteries with 1 or more battery cell parameters not w/in Category C limits, then declare associated battery inoperable immediately
25
Q

LCO 3.8.7 title

A

Inverters - Operating

26
Q

LCO 3.8.7 requirement

A

4 inverters shall be operable

27
Q

LCO 3.8.7 applicability

A

Modes 1-4

28
Q

LCO 3.8.7 required actions < 1 hour

A

NONE

29
Q

LCO 3.8.8 title

A

Inverters - Shutdown

30
Q

LCO 3.8.8 requirement

A

Inverter(s) shall be operable to support the onsite Class 1E Preferred AC bus electrical power distribution subsystem(s) required by LCO 3.8.10 “Distribution Systems - Shutdown”

31
Q

LCO 3.8.8 applicability

A
  • Modes 5 and 6

- During movement of irradiated fuel assemblies

32
Q

LCO 3.8.8 required actions < 1 hour

A

1 or more required inverters inoperable, then declare affected required feature(s) inoperable OR suspend core alterations, suspend movement of irradiated fuel assemblies, initiate action to suspend operations involving positive reactivity additions, AND initiate action to restore required inverters to operable immediately

33
Q

LCO 3.8.9 title

A

Distribution Systems - Operating

34
Q

LCO 3.8.9 requirement

A

Left Train and Right Train AC, DC, and Preferred AC bus electrical power distribution subsystems shall be operable

35
Q

LCO 3.8.9 applicability

A

Modes 1-4

36
Q

LCO 3.8.9 required actions < 1 hour

A

2 or more inoperable distribution subsystems that result in a loss of function, then enter LCO 3.0.3 immediately

37
Q

LCO 3.8.10 title

A

Distribution Systems - Shutdown

38
Q

LCO 3.8.10 requirement

A

The necessary portion of AC, DC, and Preferred AC bus electrical power distribution subsystems shall be operable to support equipment required to be operable

39
Q

LCO 3.8.10 applicability

A
  • Modes 5 and 6

- During movement of irradiated fuel assemblies

40
Q

LCO 3.8.10 required actions < 1 hour

A

1 or more required AC, DC, or Preferred AC bus electrical power distribution subsystems inoperable, then declare associated supported required feature(s) inoperable OR suspend core alterations, suspend movement of irradiated fuel assemblies, initiate action to suspend operations involving positive reactivity additions, initiate actions to restore required AC, DC, and Preferred AC bus electrical power distribution subsystems to operable, AND declare associated required shutdown cooling train inoperable and not in operation immediately

LCO (9 decks)

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