AC Flashcards
INTERLOCK: Manually Close UAT Feed
- No lockouts on SAT or UAT Feed
- One Generator output bkr closed
- MPT Disc closed
- Syncscope on
INTERLOCK: Auto close UAT Feed
- No lockouts on SAT or UAT feed
- One Generator output bkr closed
- MPT Disc closed
- SAT Feed bkr C/S in A/C
- UAT Feed Bkr C/S in A/T
- SAT Feed bkr open
INTERLOCK: Manually close SAT Feed
- No lockouts on SAT or UAT feed
- No SAT fault
- Syncscope on
INTERLOCK: Autoclose SAT Feed
No lockouts on SAT or UAT feed No SAT trups present UAT feed bkr C/S in A/C SAT feed bkr C/S in A/T UAT feed bkr open
INTERLOCK: Manually Close 1411
No lockouts on 1411
1414, 1431, 1432 open
CNMT recirc sump interlock reset
INTERLOCK: Manually close 1412
No lockouts on 1412 or 1414 No SAT faults One of the following open: 1414, 2414, 2412 Syncscope on Syncrocheck satisfied
INTERLOCK: Manually close 1413
No lockouts on 1412, 1413, 1414
D/G up to rated Voltage and Speed
Syncscope on
Synchrocheck satisfied
INTERLOCK: Auto Close 1413
UV condition on bus
D/G up to rated voltage and speed
1412, 1413 and 1414 with no lockout relays
1411, 1412, and 1414 open
Bkr C/S in A/T or ARCASS in SURV TEST with BKR C/S in any other position than PTL
INTERLOCK: Manually close 1414
No lockouts on 1412 or 1414 One of the following bkrs open: 1412, 2412, 2414 1411 open Syncscope on Synchrocheck energized
INTERLOCK: Manually Close 1431
No lockouts on SAT or UAT feed 1411 open One Generator output bkr closed MPT disc closed Syncscope on
INTERLOCK: Auto close 1431
No lockouts on SAT or UAT feed 1411 open One generator output bkr closed MPT disc closed SAT feed bkr C/S in A/C UAT feed bkr C/S in A/T SAT feed bkr open
INTERLOCK: Manually close 1432
No lockouts on SAT or UAT feed
No SAT faults
1411 open
Syncscope on
INTERLOCK: Auto close 1432
No lockouts on SAT or UAT feed No SAT faults 1411 open UAT feed BKR in A/C SAT feed bkr in A/T UAT feed bkr open
ESF degraded bus voltage and NRC regulation
less than equal to 3987VAC for >10 sec starts 5 min timer
NRC commitment 3990 VAC
ESF bus undervoltage
2870 VAC
Trip all load bkrs (except 480VAC) and start D/G
Non ESF bus undervoltage
2870 VAC >2 seconds will trip all load bkrs
6.9KV undervoltage
less than or equal to 5268 VAC for 0.8 seconds will cause RX trip and start AF pump
4920 VAC will strip all load bkrs
6.9KV bus Under frequency
57Hz for 0.4 seconds will trip all RCPs and Trip RX
*if the bus loses pwr instantaneously, the relay will not actuate
D/G load Sequence
0- CV/VC WO pump 5- SI pump 10- RH pump 15- VC Chiller* 15-18- CS pump* 20- CC pump 25- SX pump 35- AF pump 40- CS pump*
At power and S/D line up
141, 142, 158, 159 fed from SAT
143, 144, 156, 157 fed from UAT
S/D: all busses fed from SAT
