Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ILT SRO > Precourse ILT AC > Flashcards

Precourse ILT AC Flashcards

1
Q

What are the loads on Bus 141?

A 
1A AF
1A CC
1A CS
1A CV
1A RH
1A SI
1A SX
0A VC Chiller
0A VA Supply Fan 
0A VA Exhaust Fan
Bus 131x
0 CC SWGR
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the loads on bus 142?

A 
1B CC
1B CS
1B CV
1B RH
1B SI
1B SX
0B VC Chiller
0B VA Supply 
0B VA Exhaust
Bust 132x
0CC SWGR
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the loads on bus 143?

A 
1A CW
1C CW
0A WS
U-0 SAC
1A VP Chiller
0C VA Chiller
1A PZR Htr
1D PZR Htr
Bus 133 U/V/X/Y
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the loads on bus 144?

A 
1B CW
0B WS
U-1 SAC
0A Fire PP
1B VP Chiller
0A VA Chiller
1B PZR Htr
1C PZR Htr
Bus 134 U/V/X/Y
Service BLDG Chiller 0A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the loads on Bus 157?

A

1A RCP
1A HD
1C HD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the loads bus 159?

A

1D RCP
1A CD/CB
1C CD/CB
S/U FW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the loads on bus 158?

A

1C RCP
1B CD/CB
1D CD/CB

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the loads on bus 156?

A

1B RCP
1B HD
1A FW

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the supply breaker lockouts for 6.9, non-esf 4kv, and unit cross ties?

A

Ground overcurrent
Phase A overcurrent
Phase C overcurrent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the lockouts for the diesel feed breakers?

A

Generator differential current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the SAT trips?

A

BLINDS

Bus 4/14 differential
Loss of phase
Instantaneous overcurrent
Neutral ground overcurrent
Differential current
Sudden Pressure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the ESF 4160 bus UV schemes?

A

<3987V 2/2 relays for >10 seconds starts a 5 minute timer and if voltage is still degraded then all feed breakers receive a trip signal. SI signal bypasses the 5 minute timer.

<3120V 2/2 relays for >3 seconds bus feed breakers receive trip signals

<=2870 ESF trips all load breakers except 480 loads, DGs start up and load sequence

<=2870 NONESF for >=2 sec Trips all load breakers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the 6.9KV UV and UF scheme?

A

<5268V 2/4 busses 2/2 relays for >0.8 seconds starts AF pumps, if above P-7 Rx trip
<4920 strip all load breakers
<= 57 Hz 2/4 busses 2/2 relays for >0.4 seconds trip running RCPS, If above P-7 Rx trip. Will not trigger on instantaneous loss of power, UF relays are powered by bus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the requirements to manually close breaker 1411?

A 
No lockouts on 1411
Unit X-tie breaker open
Breaker 1431 open
Breaker 1432 open
Containment recirc Sump Interlock reset
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the requirements to manually close UAT feed 1431?

A 
No lockouts on SAT or UAT feed
Breaker 1411 open
One generator output breaker closed
MPT disconnect closed
Syncscope on
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the requirements to manually close SAT feed 1412?

A

No lockouts on 1412 or 1414
No SAT faults
One of the following breakers open: 1414 2414 2412
Syncscope on
Synchrocheck satisfied (if bus energized)

17
Q

What are the requirements to auto close UAT feed 1431?

A 
No lockouts on SAT or UAT feed
Breaker 1411 open
one generator output breaker closed
MPT disconnect closed
SAT feed breaker C/S in A/C
UAT feed breaker C/S in A/T
SAT feed breaker open
18
Q

What are the requirements to manually close the D/G output breaker 1413?

A

No lockouts on 1412 1413 1414
DG at speed and voltage
Syncscope on
Synchrocheck satisfied

19
Q

What are the requirements to manually close SAT feed 1432?

A

No lockouts on SAT or UAT feed
No SAT faults
Breaker 1411 open
Syncscope on

20
Q

What is the effect on a loss of DC power to 480V 4KV and 6.9KV?

A

Control power is lost so the breakers cannot be operated remotely and they will not trip on associated interlocks

21
Q

What is the effect on the overall plant on a loss of DC power?

A

Loss of DC ESF bus requires a manual reactor trip as you lose feed to the SGs because FRV and FRBV fail closed. SGs will lose level until the Lo-2 SG water level reactor trip

Loss of NONESF DC requires a manual trip because the feedwater recirc valves fail open and divert flow from the SGs

22
Q

What is the effect on the DGs on a loss of DC?

A

On a running DG the fuel rack solenoids will fail close causing the DG to trip
On a standby DG it cannot start because no field flash power available

23
Q

What are the loads of the 250V DC bus?

A

CAT Very fast

Computer inverter - Backup power supply
ASSO backup pump
Turbine emg oil pump
Vacuum breaker valve
Fw PP emg oil pump

ILT SRO (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions