GTS Flashcards
What is the purpose of the Heaters in GTS
lowers humidity
What is the purpose of GTS*PV104?
Protects GTS from High DW pressures
What do GTSAOV101 and GTSSOV102 auto close on?
THEY DO NOT AUTO CLOSE!!!!
What position does GTS*PV104 fail?
Fail Close
What do the MOV4s in GTS auto open on?
THEY DO NOT AUTO OPEN!!!!
How is FPW lined up to GTS?
Manually
What does the Safety Related Mode of GTS do?
maintain negative pressure in the Rx Bldg (post LOCA)
What T.S. is enetered when both GTS are INOP?
3.0.3
What determines the Air Booster System is Operable in GTS?
Must be >=330 psig
What is the total supply for the Air Receivers in GTS?
5-day supply with 2 strokes of each AOV on a loss of IAS
What is the filter train lineup for GTS?
- Demister
- Electric Heater
- Prefilter
- HEPA
- Charcoal Adsorber
- HEPA
What happens to the Rx Bldg on a loss of pwr to the AODs?
Isolates
What do the AOV 2s & 3s do when GTS is secured?
Close
What auto starts GTS?
- Hi Rad >1.7x10E-3 uci/cc
- Low flow <840 cfm
- LOCA signal, L2, Hi DW
What alarm comes in on start of the GTS Sys?
Air Flow Lo
What happens to GTS if AOV3s go full closed?
Trips GTS
What position does AOV3 fail in GTS?
Fail Closed
What do AOV2s & 3s do on start of GTS
Auto Open
Can air boosters be cross connected in GTS?
YES
What will happen to DW pressure if GTS is operating?
DW pressure will lower.
When will a GTS train reauto start?
- Train has been S/D manually.
- Initiation Control Switch is in Auto
- GTS Auto Start is present when…
A. Opposite train charcoal temp exceeds hi-hi 300F
OR
B. Rx Bldg Diff Press is <0.25 in WG.
What happens on GTS initiation signal?
- AOD 1, 9, 10 close.
- 413 B starts
- Safety Related UCs start
- RB supply and exhaust fans trip on low flow
- Both GTS trains start
