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Question 1

The Auxiliary Shutdown Complex consists of what panels?

Answer 1

-Auxiliary Shutdown Panels A & B (ASP) (including cooling units)
-Auxiliary Feedwater Pump Turbine Control Panel
-Diesel Generator Control Panels A & B (including ventilation [VD])
-HVAC Control Panels A & B - VC/YC
-VI local panels
-CPCS panels

Question 2

What does the ASC provide the capabilities to do what?

Answer 2

-Achieve Hot Standby from mode of plant operation after transfer of control from the Control Room,
-Maintain Hot Standby without jeopardizing plant safety,
-Proceed to Cold Shutdown in an orderly fashion through the use of proper procedures, and
-Maintain Cold Shutdown

Question 3

At the Aux shutdown panels what components are there for Primary pressure control?

Answer 3

-PZR PORVs
-A&B PZR Heaters
-NV aux spray

Question 4

At the Aux shutdown panels what components are there for Primary level control?

Answer 4

-NV pumps and boric acid pumps for makeup and primary inventory control
-Normal and excess letdown for primary inventory control

Question 5

At the Aux shutdown panels what components are there for Secondary level control?

Answer 5

-CA pumps for secondary inventory

Question 6

At the Aux shutdown panels what components are there for Secondary pressure control?

Answer 6

-Steam generator PORVs

Question 7

When the Aux Shutdown Panels are transferred to local, how much NV Letdown flow is automatically aligned?

Answer 7

75 gpm

Question 8

When the Aux Shutdown Panels are transferred to local, do the auto actions on Low PZR level at 17% occur?

Answer 8

No, Letdown isolation and de-energizing of PZR heaters are blocked upon transfer to ASP .

Question 9

When the Aux Shutdown Panels are transferred to local, does the VCT automatically swap to the FWST on lo-lo level?

Answer 9

No, Auto closure of NV-188A & 189B on Lo-Lo VCT level is blocked.

Question 10

Since NV-309 can be controlled from either A or B ASP, how does it decide on which panel controls it?

Answer 10

Selects the highest (auctioneered) signal for the most seal injection flow

**an engraved plaque warns the operator, stating: “If manual operation of this controller is desired, place controller on opposite panel in manual and full open” (minimum seal injection flow)

Question 11

What is the Mode of Applicability for LCO 3.3.4 Remote Shutdown System?

Answer 11

MODES 1, 2, and 3.