3.2 Power Distribution Limits Flashcards
LHR shall not exceed the limits specified in the COLR
Applicable:____________________
Actions:
A: COLSS Calculated core power exceeds COLSS LHR POL
A.1 Restore LHR to within limits
Completion Time:_________
B: LHR not within acceptable operation when COLSS is out of service
B.1 Determine Trend in LHR
Completion Time:______
AND¨
B2.1 With an adverse trend, restore LHR to within limits.
Completion Time:___________
OR¨
B.2.2 With NO adverse trend, restore LHR to within limits.
Completion Time:__________
C: Required Actions not completed
C.1 Reduce Power ____________
Completion Time:__________
LHR shall not exceed the limits specified in the COLR
Applicable:Mode 1 with Thermal Power >20%
Actions:
A: COLSS Calculated core power exceeds COLSS LHR POL
A.1 Restore LHR to within limits
Completion Time:1 Hour
B: LHR not within acceptable operation when COLSS is out of service
B.1 Determine Trend in LHR
Completion Time: Once every 15 minutes
AND¨
B2.1 With an adverse trend, restore LHR to within limits.
Completion Time: 1 hour
OR¨
B.2.2 With NO adverse trend, restore LHR to within limits.
Completion Time: 4 hours
C: Required Actions not completed
C.1 Reduce Power to =20%
Completion Time: 6 hours
The measured Planar RPFs (FMxy) Shall be = than the Planar RPFs (FCxy).
Applicable: _______________
Actions:
A: FMxy > FCxy
A.1.1: Adjust addressable CPC constants to increase the multiplier applied to planar radial peaking by a factor >/= FMxy/FCxy
Completion Time:___________
AND
A.1.2 Maintain a margin to the COLSS operating limits of [(FMxy / FCxy)-1] x 100%
Completion TIme:___________
OR
A.2 Adjust the affected FCxy used in the COLSS and CPCs to a value >/= measured FMxy
Completion Time:___________
OR
A.3 Reduce thermal power to ________
Completion Time:___________
The measured Planar RPFs (FMxy) Shall be = than the Planar RPFs (FCxy).
Applicable: Mode 1 >20%
Actions:
A: FMxy > FCxy
A.1.1: Adjust addressable CPC constants to increase the multiplier applied to planar radial peaking by a factor >/= FMxy/FCxy
Completion Time: 6 hours
AND
A.1.2 Maintain a margin to the COLSS operating limits of [(FMxy / FCxy)-1] x 100%
Completion TIme: 6 hours
OR
A.2 Adjust the affected FCxy used in the COLSS and CPCs to a value >/= measured FMxy
Completion Time: 6 hours
OR
A.3 Reduce thermal power to =20%
Completion Time: 6 hours
The measured Tq shall be = the Tq allowance used in the CPCs
Applicable: Mode 1 >20% power
Actions:
A: Measured Tq > allowance used in the CPCs and within the limit in the COLR with COLSS in service
OR
Measured Tq >the allowance in the CPCs and =.03 with COLSS out of service
A.1 Restore measured Tq
Completion Time:__________
OR
A.2 Adjust the Tq allowance in the CPC to >/= the measured value
Completion Time:__________
B: Measured Tq not within the COLR limit with COLSS in service
OR
Measured Tq>.03 with COLSS out of service
Note: Action B.5 must be completed is power reduction commences prior to restoring Tq)
B.1 Reduce Thermal Power ___________
Completion Time:________
AND
B.2 Reduce VOPT setpoint to <55%
Completion Time:_________
AND
B.3 Restore measured Tq to < Tq allowance used in CPCs
Completion Time:________
AND
B.4 Correct the cause for measured Tq not within the limit
Completion Time:________
AND
B.5 Subsequent to power operation _______ verify measured Tq is within the limit
Completion Time:________
C: Actions not met
C.1 Reduce power ____________
Completion time:__________
The measured Tq shall be = the Tq allowance used in the CPCs
Applicable: Mode 1 >20% power
Actions:
A: Measured Tq > allowance used in the CPCs and within the limit in the COLR with COLSS in service
OR
Measured Tq >the allowance in the CPCs and =.03 with COLSS out of service
A.1 Restore measured Tq
Completion Time: 2 hours
OR
A.2 Adjust the Tq allowance in the CPC to >/= the measured value
Completion Time: 2 hours
B: Measured Tq not within the COLR limit with COLSS in service
OR
Measured Tq>.03 with COLSS out of service
Note: Action B.5 must be completed is power reduction commences prior to restoring Tq)
B.1 Reduce Thermal Power =50%
Completion Time: 4 hours
AND
B.2 Reduce VOPT setpoint to <55%
Completion Time: 16 hours
AND
B.3 Restore measured Tq to < Tq allowance used in CPCs
Completion Time: Prior to increasing power
AND
B.4 Correct the cause for measured Tq not within the limit
Completion Time: Prior to increasing power >50%
AND
B.5 Subsequent to power operation >50% verify measured Tq is within the limit
Completion Time: Once per hour for 12 hours OR Until verified >/= 95%
C: Actions not met
C.1 Reduce power = 20%
Completion time: 6 hours
DNBR shall be maintained by one of the following:
a. COLSS in service
- Maintinaing COLSS calculated core power = to COLSS calculated DNBR POL when at least 1 CEAC is operable in each operable CPC OR
- Maintaining COLSS calculated core power = to COLSS calculated DNBR POL decreased by an allowance specified in the COLR when the CEAC requirements aren’t met.
b. COLSS out of service
- Operating within the region of acceptable operation specified in the COLR using any operable CPC when at least 1 CEAC is operable in each operable CPC channel
- Operating within the region of acceptable operation specified in the COLR using any operable CPC channel with both CEACs inoperable
Applicability: Mode 1 with power >20%
Actions:
A: COLSS calculated core power not within limit
A.1 Restore DNBR within limit
Completion Time:_________
B: DNBR outside the region of acceptable operation when COLSS is out of service
B.1 Deterine DNBR Trend
Completion Time:________
AND
B.2.1 With an adverse trend, Restor DNBR
Completion Time:________
OR
B.2.2 With no adverse trend, Restor DNBR
Completion Time:________
C. Actions not met:
C.1 Reduce thermal power =20%
Completion Time:________
DNBR shall be maintained by one of the following:
a. COLSS in service
- Maintinaing COLSS calculated core power = to COLSS calculated DNBR POL when at least 1 CEAC is operable in each operable CPC OR
- Maintaining COLSS calculated core power = to COLSS calculated DNBR POL decreased by an allowance specified in the COLR when the CEAC requirements aren’t met.
b. COLSS out of service
- Operating within the region of acceptable operation specified in the COLR using any operable CPC when at least 1 CEAC is operable in each operable CPC channel
- Operating within the region of acceptable operation specified in the COLR using any operable CPC channel with both CEACs inoperable
Applicability: Mode 1 with power >20%
Actions:
A: COLSS calculated core power not within limit
A.1 Restore DNBR within limit
Completion Time: 1 Hour
B: DNBR outside the region of acceptable operation when COLSS is out of service
B.1 Deterine DNBR Trend
Completion Time: Within 15 minutes
AND
B.2.1 With an adverse trend, Restor DNBR
Completion Time: 1 hour
OR
B.2.2 With no adverse trend, Restor DNBR
Completion Time: 4 hours
C. Actions not met:
C.1 Reduce thermal power =20%
Completion Time: 6 hours
ASI shall be within the limits of the COLR
Applicability: ____________________
Actions:
A: Core average ASI not within limits
A.1 Restore ASI to within limits
Completion Time:_________
B: Actions not met:
B.1 Reduce thermal power to =20%
Completion Time:_________
Applicability: Mode 1 with power >20%
A.1 Completion Time: 2 hours
B.1 Completion Time: 4 hours
