SW

Question 1

State SW pump start interlocks

Answer 1

Train TS signal is reset
Associated discharge valve is closed
Associated CT pumps discharge valve is closed

Question 2

State when SW pump starts on EPS

Answer 2

starts at step 8 (HR8)

5 second time delay if a CBS pump started

Question 3

State time delay for SW pump discharge valve

Answer 3

opens 15 seconds after pump starts

closes if pumps stops

Question 4

State what auto starts SW pumps

Answer 4

same train pump breaker trips open

Question 5

State what trips SW pumps

Answer 5

CS to stop
TA signal
Overcurrent and undervoltage

Question 6

State starting interlocks for CT pumps

Answer 6

No overloads
Test recirc valve 20-70% open
Discharge valve closed

Question 7

State Time delay for CT pump discharge valve

Answer 7

10 seconds on TA only
Not in manual
CW ocean pumps must be in PTL for to restart after LOP

Question 8

State auto close of SW-V-4,5, 74, 76

Answer 8

TA
SI
LOP (SW-V-4,5)

Question 9

State interlocks for SW-V-75

Answer 9

There are no interlocks for SW-V-75

Question 10

When does DG Jacket water HX SW outlet valves open

Answer 10

SW-V-16/18 open on EDG Low and High speed relay (125/375 RPM)

Question 11

State T.S. limit on CT level and Temperature

Answer 11

Level: 42.15’
Temp: 70F

Question 12

State TA signal signals

Answer 12

Either SW pump per train with its breaker closed for >28 seconds and 2/3 pressure Lo-Lo for >3 seconds
- >29.9# - A Train
- >28.5# - B Train
Manual
LOP when already on tower

Question 13

State what repositions on TA

Answer 13

Running SW pump is tripped and locked out
CT pump starts
Closes SW-V-4/5/74/76
Open PCCW HX SW outlets SW-V-15/17
Opens Heat Loads return CT SW-V-34/23
Closes Primary Heat Loads returns SW-V-20/19