0POP03-ZG-0005 Plant S/U to 100%

Question 1

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

If the fuel is conditioned, how quickly can the operators raise power from 0% -100%?

Answer 1

• Should:*
• *≤ 10%/hr**
• Shall:*
• *≤ 12%/hr**

Conditioned fuel has ≥ 72 hrs in any 7 day period at > 95% RTP.

Question 2

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What must the margin to OT∆T be maintained at?

Answer 2

≥ 5% Margin

Question 3

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

How many loop feedwater temperatures are required for calorimetric uncertainty?

Answer 3

3 Loops

Question 4

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

How long should DA pressure be maintained > 35 psig prior to placing PV-7174/PV-7174A MS Supply Valves in the MOD position?

Answer 4

30 mins

Low pressure causes the controller to saturate causing PV‑7174 and PV‑7174A to open. A potentially severe hydraulic transient could occur.

Question 5

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What are the open permissives for the FWIVs?

Answer 5

SGNR Level > 5%

SG Pressure > 685 psig

• FWIVs fail closed on loss of hydraulics/power. (Will not close on loss of N₂ pressure)
  
  • Hydraulic open / N₂ closed
• FW Isolation Energizes Train A/B solenoids, which secure the hydraulic pumps and dump hydraulic fluid (Manual switches [2 / SG] located on CP006)
• Open permissives being met allows de-energizing Train A/B solenoids.

Note:
Same concept for FWIBs and Preheater Bypass Valves (PBVs) except solenoids de-energize to dump hydraulics and energize to allow opening.

Question 6

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What must be done if both fans on the Isophase are lost?

Answer 6

Reduce Power to 50%

Lower Isophase Current to 18,500 Amps
Lower load at 5%/min
Generator Current on CP007

Normal current rating is 36,600 Amps

Note:
Isophase trouble on CP010.

Question 7

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

When should Feedwater be transferred from the LPFRVs to the MFRVs?

Answer 7

Prior to exceeding 75% on the LPFRVs

Question 8

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

At what power levels are the Low Power FRVs and Main FRVs used?

Answer 8

• Low Power FRVs:*
• *< 15%**
• Fail closed on Loss of Air/Power*
• Main FRVs:*
• *≥ 15%**
• Fail closed on Loss of Air ONLY*

• Controlled from CP006
• • *

Note:
2 safety related solenoids for FW Isolation signal

Question 9

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

Describe how U1118 measures feedwater flow if LEFM system is lost?

Answer 9

Switches to Corrected Venturi Input
AND
Starts 72 hr timer

• *Switches to Venturi Input when 72 hr timer expires**
• *OR**
• *> 10% drop in Rx power**
• Limit Power to ≤ 99.6 RTP (3838 MWt)*

Correction Factors and Power level are captured when LEFM lost for Corrected Venturi Input.

Note:
Time Remaining changes from Cyan to Red when 6 hrs are remaining on clock.

Question 10

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What should gland steam pressure be maintained less than?

Answer 10

< 140 psig

Question 11

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

If the fuel is unconditioned, how quickly can the operators raise power from 0% -100%?

Answer 11

0% - 50%:
Should: ≤ 10%/hr
Shall: ≤ 12%/hr

• 50% - 100%:*
• *≤ 3%/hr**

Hold Points:

• 75% - 78%: 3 hrs
• 95% - 98%: 10 hrs - previous hold points

Note:
To count as hold, must hold power ± 1% for ≥ 3 hrs

Question 12

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

When should a second condensate and FW booster pump be placed in service?

Answer 12

Prior to exceeding 30% power

Can wait up to 40% power but that will result in a chemistry action level.

Question 13

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

How is the preferred PZR pressure channel determined?

Answer 13

Select LOWEST PZR Pressure Channel

Obtains the highest OT∆T setpoint margin for the remaining loops.

Question 14

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

When Rx Power is > 50% and the power ascension rate is > 1%/hr, what should control rod withdrawal rate be limited to?

Answer 14

3 ^steps/_hr

May exceed limit to limit AFD but cannot exceed 6 ^steps/_hr

• 50% - 75%: AFD ± 5% of target value
• 75% - 100%: AFD ± 3% of target value

Question 15

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What are the restrictions for raising a SGFPT’s speed > 5400 RPM?

Answer 15

• 5400 - 5500 RPM:*
• *May be operated in this range indefinitely**

Each SGFPT’s flowrate > 8250 gpm

• 5500 - 5600 RPM:*
• *Operated in this range ≤ 1 hr**

Each SGFPT’s flowrate > 11000 gpm

Question 16

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

What will auto open the exhaust hood spray valves?

Answer 16

Crossover Steam Pressure < 15%
AND
Turbine Speed > 600 RPM

• Maintains spray pressure 116 psig (40 gpm)
• Alarm set at 175 ˚F

Note:
Controlled on CP007

Question 17

• 0POP03-ZG-0005 Plant S/U to 100%*
• • *

At what point in the Plant startup can the main generator be synced to the grid?

Answer 17

Rx Power ≥ 12%
AND
Steam Dump Dump Demand ≥ 13%

Question 18

• 0POP03-ZG-0005 Plant S/U to 100%*
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At what point during plant startup do we roll the main turbine?

Answer 18

Steam Dump Demand > 3%

Rx Power Stable or Rising

Establishes sufficient steam flow to allow rolling the turbine without primary/secondary plant perturbations.