Term
| What is the purpose of the vibration monitoring system? |
|
Definition
- Provides displays,
- Alarms, and
- Trips
for selected plant equipment |
|
|
Term
| What components can vibration monitoring trip? |
|
Definition
- "B" and "C" RWCU pumps, 10 second start delay
- RFP suction valve closure
- High vibration, or
- High RPM when windmilling
Note:
"A" RWCU pump does not trip from vibrations, only alarms |
|
|
Term
| What is the preferred method of eliminitaing vibration monitoring system nuisance alarms? |
|
Definition
| Setpoint change (vs. channel bypass), unless there is a known probe problem |
|
|
Term
| Where are Bentley Nevada vibration monitoring system cards located? |
|
Definition
| All in the TSC, except for the recirc pumps which are located in each reactor building 253' elevation |
|
|
Term
| When are channel alarms cleared? |
|
Definition
| When channel bypass switch is on |
|
|
Term
| What will happen to machine protection when channel bypass is on? |
|
Definition
| Machine protection will be lost for that channel |
|
|
Term
| Which prefix designates adjustments to setpoints, and which prefix designates channel bypass? |
|
Definition
A- (AA, AB) = Adjustments
- Take to on to make adjustment,
- Take to off to lock adjustment in
B- (BA, BB) = Bypass
- Take to ON to bypass (red bypass light comes on),
- Take to OFF to take out of bypass (green OK light)
|
|
|
Term
| What colors do yellow and red represent on the VMS? |
|
Definition
Yellow = Alert
Red = Danger
- Must immediately investigate
|
|
|
Term
| CAN'T READ OTHER PROCEDURE - REVIEW FOR ?'s |
|
Definition
|
|
