LOT 202.08 Extraction Steam / MSRs

Question 1

• LOT 202.08 Extraction Steam / MSRs*
• • *

Where does the steam for the SGFPTs come from?

Answer 1

• < 40%:*
• *MS Equalizing Header**
• > 40%:*
• *MSR 11 Extraction Steam**

Question 2

• LOT 202.08 Extraction Steam / MSRs*
• • *

Which FW Heaters are located in the condensers?

Answer 2

FWHs 15A/B/C

FWHs 16A/B/C

Question 3

• LOT 202.08 Extraction Steam / MSRs*
• • *

Where does the extraction steam go on the LP Turbine?

Answer 3

• Turbine End:*
• *4^th Stage: FWH 14A/B**
• *6^th Stage: FWH 15A/B/C**
• *8^th Stage: FWH 16A/B/C**
• Generator End:*
• *2^nd Stage: FWH 13A/B**
• *6^th Stage: FWH 15A/B/C**

Blowdown flash tank steam goes to FWH 13A/B.

Question 4

• LOT 202.08 Extraction Steam / MSRs*
• • *

Where are the MSR thermocouples located?

Answer 4

Crossover piping between IVs and LP Turbines

• Used for feedback control and temperature indication on reheater temperature control panel.
• Also indicated on CP018 recorder.

Question 5

• LOT 202.08 Extraction Steam / MSRs*
• • *

Where does the extraction steam go on the HP Turbine?

Answer 5

4^th Stage Extraction: FWH 11A/11B

Exhaust: DA (FWH 12)

Question 6

• LOT 202.08 Extraction Steam / MSRs*
• • *

If the unit is operating for an extended period of time with one MSR out of service, what should power be maintained at?

Answer 6

> 50%

Minimizes erosion of LP Turbine’s last row of blading.