LOT 202.10 Condensate

Question 1

• LOT 202.10 Condensate*
• • *

What will auto close the condensate header min flow valve (FV-7022)?

Answer 1

CD Header Pressure < 300 psig

Ensures 5600 gpm flow through GSS Condenser.

Note:
Indicated CD Flow on CP008

Question 2

• LOT 202.10 Condensate*
• • *

What cools the condensate pump bearings?

Answer 2

CL-ACW

Question 3

• LOT 202.10 Condensate*
• • *

What will a high level in FW Heaters 15/16 cause?

Answer 3

Closes Inlet/Outlet valve for respective string

Opens Bypass MOV

Trips associated LPHD Pump

Relays for automatic High level actuation comes from LPHD pump control power.

NO AUTO FEATURES FOR FW HTRS 13/14

Note:
Anticipated following a Rx Trip

Question 4

• LOT 202.10 Condensate*
• • *

What is the minimum flow required through the GSS condenser?

Answer 4

5600 gpm

Ensured by FV-7022

Question 5

• LOT 202.10 Condensate*
• • *

What is the flowpath through the condensate system?

Answer 5

Condensers

• *Condensate Pumps (50% Capacity)**
• Condensate Pump Seals*
• *Polishers**
• Chem Feed, MFP Seals, FW Booster Pump Seals*
• *Gland Seal Condenser**
• Exhaust Hood Spray, LP Htr Drip Pump Seals*

DA Level Control Valves (LV-7406/7406A)

FW Heaters 16 → 15 → 14 → 13

• *DA Inlet Valves (MOV-574/575)**
• Close on 89%/90% DAST Level*

DA

Question 6

• LOT 202.10 Condensate*
• • *

What provides seals to the condensate pumps?

Answer 6

• Running Pump:*
• *Condensate Pump Discharge**
• Non-Running Pump:*
• *Condenser Makeup Pumps**

Seal water returns to Condensate Seal Leakoff Tank → Seal Leakoff Tank (SLOT)

Note:
Condensate Seal Leakoff Tank - High 2 auto starts both pumps

Question 7

• LOT 202.10 Condensate*
• • *

What are the start permissives and trips for the condensate pumps?

Answer 7

• Start Permissives:*
• *Discharge Valve Closed**
• No Automatic Actions*

Recirc Valve Closed
Opens and begins modulating on pump start
Shuts when pump secures [5 sec TD]

Suction Valve Open

Adequate NPSH

• Trips:*
• *Low NPSH**
• Low D/P*

NO AUTO STARTS

Note:
Controlled from CP008

Question 8

• LOT 202.10 Condensate*
• • *

What powers the condensate pumps?

Answer 8

1F / 1G / 1J Aux Buses

Question 9

• LOT 202.10 Condensate*
• • *

What condenser is the hotwell level standpipe aligned to?

Answer 9

• Normal:*
• *Condenser 12**
• Alternate:*
• *Condenser 13**

• Auto Makeup from LV-7005 on Low Level
• Auto Divert from LV-7006 on High Level

Note:
Located on CP008

Question 10

• LOT 202.10 Condensate*
• • *

Where can condensate hotwell reject valve (LV-7006) send condensate to?

Answer 10

SMUT

Other Unit

Aux Boiler

Question 11

• LOT 202.10 Condensate*
• • *

What will auto open the GSS Condenser bypass valve (PDV-7020)?

Answer 11

GSS Condenser Inlet (MOV-084) closed

GSS Condenser Outlet (MOV-082) closed

Loss of IA / Electrical Power

• *GSS Condenser D/P > 18 psid**
• Resets at 5.5 psid*