SB

Question 1

State closing signals for SB IRC valves

Answer 1

Flash tank HI-HI pressure 65#
Flash tank high level 50%
A HELB signal

Question 2

State Closing signal for SB ORC valves

Answer 2

B HELB
EFW actuation
T Signal

Question 3

Discuss Where BD flash tank vapor is aligned and how

Answer 3

<10% power to C Condenser
>10% to HTR 23C
pressure is controlled to 55# via PCV-1926-1
Can go to atmosphere via PCV-1926-2

Question 4

Discuss SB Bottoms coolers

Answer 4

normal outlet temp: 115F
High temp: 200F
on high temp SB-CV-6519

Question 5

State normal BD flash parameters

Answer 5

Level: 20%
Pressure: 55#

Question 6

State which valve controls level in the BD flash tank depending on alingment

Answer 6

Ocean: SB-LCV-1909
Condenser: SB-LCV-1909-1

Question 7

State closing signals for SB-CV-6519

Answer 7

High rad signal from SB rad monitors

High Bottom coolers outlet temp (200F)

Question 8

State setpoints for the SB Recovery HX

Answer 8

115F: SB-V-398 opens to bypass HX
120F: Alarm at SB panel

Question 9

Discuss which valves close on a HELB signal

Answer 9

SB IRC valves: Train A
SB ORC valves: Train B
CS-V-149: IRC Train A
CS-V-150: ORC Train B
AS-V-175: Train A
AS-V-176: Train B

Question 10

Discuss the operation of the SB Isolation Bypass Switches

Answer 10

Train related switches bypasses signals for ORC SB isolation valves
Train A bypasses MS-V-393 and 394 switches
Train B bypass switches for B EFW pump and MS-V-394 B Train switches
HELB and T Signals are not affected