RCIS Flashcards
What should be done when an HCU fault occurs?
Press the HCU fault P.B. to see what HCU has a fault
what buttons do you press for an HCU fault?
Press the HCU fault ACK. P.B. to acknowledge the alarms so additional HCU faults will alarm the 680 panel
What is the result of bypassing a rod in RACS?
Rod will move if selected
How many cabinets must be bypassed in?
both cabinets
How rods in RACS can be bypassed?
8
When bypassing a rod in RACS, is RWL still active?
yes
what happens if you lose 1 power source to RCIS?
Rod movement will be inhibited
How does a Rod respond when bypassed in RGDS?
The rod will not move, but will move if gang mode is used
How many rods can be bypasses in RGDS?
1
How many notches will RWL limit WITHDRAW to relative to what percent power?
< 26% RPC
26% - 62%, 4 notches (RWL)
> 62%, 2 notches (RWL)
What does the velocity limiter limit heat generation to in a control rod drop accident?
< 280 cal/gram
What’s the purpose of the IN TIMER SKIP pushbutton?
Inserts rod continuously independent of rod motion timer circuit (no settle function)
What must be pressed to continuously withdraw the control rod?
withdraw and continuous withdraw pushbuttons at the same time. it will withdraw as permitted by RPC and RWL
What does the Rod select clear pushbutton do?
deselects all control rods and inhibits rod selection until pressed again
When is the Rod select clear pushbutton non functional?
When mode switch is in REFUEL and 1 rod is selected and partially withdrawn
