AMS Flashcards
AMS initiation
SGWL_____
Logics_____
Time delay__
P impulse___
3/4 <=15.0%(33.3%)
2/3 logics
9 seconds
>=30% on both PT505 and 506
AMS will/will not trip the reactor
will not
Entire AMS is ____ and ____ separate from safety related components and circuits (SSPS, RPS, ESF)
electronically and physically separate
What is the reason for the 9 second time delay?
Allows time for RPS to trip Reactor before AMS trips turbine and initiates Auxiliary Feed
After C-20 is cleared, how long does AMS remain active?
6 minute time delay
What is the time delay for AMS to actuate if concurrent with bus UV? Which pump(s) start in this case and when does time delay start?
70 seconds
Only motor driven AF pump
70 seconds starts when bus re-energized
What equipment is actuated by AMS?
Trips turbine
Starts MD and Diesel AF pumps
AMS effect on diesel driven AF pump
Starts engine
Starts aux oil pump
Starts gearbox oil pump
Open signal to AF004B
AMS effect on motor driven AFP
Starts pump
Starts oil pump
Open signal to AF004A
How does AMS trip turbine? How to reset circuit?
20/ET
Self resetting
AMS initiated alarm is a (turbine or reactor)first out alarm.
Turbine
What are some indications that AMS is armed?
Bypass/permissive C-20 light out
2 AMS armed lights, on AMS local panel and one on PM02J