EDG Auxiliaries Flashcards
When does the EDG Crankcase Breather start?
- Starts on EDG run signal
What happens to the EDG Vent sys when outside air temp is < 45°?
- tempering dampers open to stop drawing in cold outside air
What does the Tornado Damper do?
- prevents a tornado from collapsing the room (act as a check valve)
At what temp do the EDG fans start?
- 95°F Room Temp
When do the EDG Supply and Exhaust fans stop?
- Stop 30 min after EDG shutdown
- 70°F Room Temp,
OR - on a CO2 actuation
How often does the gear lube oil ctrl valve open while the EDG is in stby?
- Solenoid opens every 4 hours for 2 min
When do the gear lube oil ctrl valves open when the EDG is started?
- Open immediately on the start of the EDG
When do the gear lube oil ctrl valves close after the EDG is shutdown?
- 8 min after an EDG is shutdown/tripped
What provides fuel to the EDG while its running?
- The Shaft Driven Fuel Oil Pump
When is the field flash disabled?
- @ 80% speed during a fast start
What must the Throttle Control Cylinder have to be able to open?
- Ctrl Air
How do the starting air valves fail?
- As is
When does the supply fan for the EDG Auto start?
- 20 Sec after Exhaust Fan on Start of EDG
- 95°F Room Temp
When does the exhaust fan for the EDG Auto start?
- Auto starts on EDG start
or - 95°F Room Temp
How much lube oil supply can the EDG Shaft Driven Pump supply?
- 100% of the lube oil flow while the EDG is running
What is the minimum Lvl of fuel oil in the fuel oil storage tank required for a EDG?
≥ 46,000 gal to supply 1 EDG for 7 days at full load per LCO 3.8.3
What is the minimum level in the Fuel Oil Day Tank per SR 3.8.1.4?
- 101.4 gal (15 minutes worth run time at full load)
What are the designed temp bases for the EDG room?
< 104°F in standby
< 130°F running
When does the Stby EDG JW Pump auto start?
- starts on low # (16 psig)
What temp does the EDG Aux Jacket Water Heater maintain the EDG Jacket Water at?
- 145°F
What loads are on the EDG Inverter?
- Field Flash
- Bearing Temp Recorder
- Local/Remote Relays
- Dynalco Speed Sensor
Unit 1 is at 100% power. A relief valve has failed open on 1AB Emergency Diesel Generator
Starting Air Receiver #1. The associated starting air compressor has tripped off.
Which one of the following correctly describes the response of 1AB Emergency Diesel
Generator if a start signal occurs before any operator action?
The EDG will …
- start in the normal time from #2 Starting Air Receiver but only one starting air valve will
supply all of the cylinders with starting air pressure.
Upon a loss of control air, EDG air aftercooler regulating valves fail to what position?
- Fails to allow full flow through the EDG air aftercooler
What is the makeup water to the EDG JW surge tank?
- Demin water