FWLC

Question 1

When is the 3rd RFP Started? Secured?

Answer 1

FW Flow between 9.0 and 9.8Mlbm/hr AND RISIng (>9.0Mlbm/hr in single element

Reverse for Securing

Question 2

When is 2nd FRV placed in service?

Answer 2

Total feed flow >5.0 Mlbm/hr

Question 3

When is 2nd RFP required to be started?

Answer 3

When FW Flow reaches 4.5Mlbm/hr and rising

Question 4

When is 3rd C/CB pp started?

Answer 4

Prior to 550MWe and rising

Question 5

When is 4th C/CB pump started?

Answer 5

When RFP suction pressure approaches 250psig

Question 6

When is 4th C/CB Pp Secured?

Answer 6

After 3rd RFP Secured and RFP Suction Pressure >230psig

Question 7

When is 3rd C/B Pp Secured?

Answer 7

At 450MWe and lowering

Question 8

When is 2nd RFP secured?

Answer 8

When Feedwater Flow is 4.5Mlbm/hr AND LOWERING

Question 9

When is 2nd C/CB Pp Started?

Answer 9

Prior to RPV pressure exceeding 200psig

Question 10

When is 1st C/CB Pp started?

Answer 10

After fill and vent of Condensate system?

Question 11

When is 2nd C/CB pp secured?

Answer 11

When RPV pressure between 150 and 200psig

Question 12

When is 1st RFP started?

Answer 12

Prior to RPV pressure exceeding 300psig

Question 13

What is the RFP/ C/CB start sequence?

Answer 13

Start 1st C/CB following fill and vent
Start 2nd C/CB between 150 and 200psig RPV pressure
<300# Rx Pressure use C/CB to maitnain level
Between 250 and 300psig, start 1st RFP
Start 2nd RFP at 4.5Mlbm/hr
Start 3rd C/CB befor 550MWe or RFP suction 250psig
Start 4th C/CB when RFP approaches 250psig
Start 3rd RFP between 9-9.8Mlbm/hr (9.0 in single element)

Question 14

If a single FWRV is operated in MANUAL and other is in AUTO, what will happen to the OTHER FWRV?

Answer 14

When moving the FRV in manual, other FRV will move automatically to balance

Question 15

What will cause a FRV to auto transfer M/A station to manual?

Answer 15

Individual M/A Station:
Valve lockup; position signal bad, 10% error between position and demand for 15 seconds, valve in manual bypass

Master: Both individuals in manual or ALL 3 LEvel signals bad quality

Setpoint setdown does NOT funtion when MASTER CONTROLLER IN MANUAL
STPT STDN will be exited if Master controller taken to manual

Question 16

How will adjusting the setpoint on M/A station affect associated FWRV?

Answer 16

Ind: Changes outpout to open or close that valve more or less
Master: If setpoint raised, both FRV will open until new level then return to near original position

Question 17

What is the Normal RPV Level Operating Band?

Answer 17

+25” to +35”

Prevents carryunder and varryover

Question 18

What are the DEOP RPV Level control band?

Answer 18

+8” to +48”

Question 19

What is the maximum FW flow through a SINGLE FRV?

Answer 19

For Unit 2 Only : DO NOT OPERATE single FWRV above 8.3 Mlbm/hr feed flow

Question 20

For the Bailey M/A Station: What is biasing and when is it allowed?

Answer 20

Used to change valve position when both FWRV are open in auto. When one valve is biased open, the other will bias closed. Could be used to change a valve position due to packing leakage in certain position.

Question 21

When verifying operation of Main FWRV prior to in service, how is vavle cycled slowly?

Answer 21

Single detent cycling - provides ramp rate of 2% of scale per second

Question 22

When making adjustments on FWLC controller, which display is used?

Answer 22

Digital rather than low res LED bar display. LED display changes only every 3 %

Question 23

What happens if FRV ind. controller receives lockup signal?

Answer 23

Transfers to MANUAL?

Question 24

What signal generates FRV lockup?

Answer 24

Loss of output power or loss of control air (65psig)

Question 25

How is FRV manual bypass entered?

Answer 25

Automatically, by loss of signal to or from controller OR manually by placing controller card toggle switch to MANUAL BYPASS