Term
Cond
Describe the hotwell size basis. |
|
Definition
-Provides 2 minute retention time to allow for the decay of short lived radioactive nuclides.
-43,000 gallons of storage at normal operating level per hotwell.
-Normal level provides 3 minutes pumping time w/both condensate pumps operating at 7300gpm each. |
|
|
Term
Cond
Describe the MVP operation. |
|
Definition
-Used during startup, secured after steam pressure >150psig.
-Should not be used >5% power since a lot of H2 and O2 is present.
-Gases discharged to 1 3/4 minute off gas line and then to stack.
-Interlocked with backwash receiving tank, cannot be started if OG-28 is not full closed. |
|
|
Term
Cond
Describe the MVP trips. |
|
Definition
-On trip the MVP trips, its suction valves close, MVP recirc seal pump trips.
-High main steam line rad (1 of 2 twice).
-Drywell high pressure.
-Low Rx water level.
-Rx building and fuel pool rad trips. |
|
|
Term
Cond
Describe the second stage air ejector suction valves (AO-1085A/B) trips. |
|
Definition
-Close on offgas pretreatment rad alarm after 30 minutes.
-Low SJAE steam supply pressure of 110# for 5 seconds. |
|
|
Term
Cond
Describe the high turbine exhaust hood temp alarm. |
|
Definition
|
|
