Traction Xtrap - Train Electrics Flashcards
What equipment is part of the high voltage circuit? (7 answers)
Panto
Lightening arrestor
2x HSCB
Line inductors
Traction inverter
Rheostat brake resister grids
Auxiliary inverter (SIV)
How is the pantograph raised?
Electrically with master key in and on, provided that 110v DC Permanent Line Voltage is present from charged batteries
What power does the traction inverter receive and output
Receive- 1500vDC
Output - variable AC (to the Traction motors). Amount of power is dependent on MC handle.
What does the TCU do?
Tells how much power to send to Traction motors using 1500 coming in
What is the low voltage circuit? (6 answers)
What os on the auxiliary container?
2x SIV
1x Battery charger
What do SIVS supply power to?
BATHG
110v
400/220v AC
110v DC
Air compressors
Air Conditioners
Battery charger
Traction converter cooling fan
What voltage system does the battery backup provide power for?
110v DC system
Auxiliary 400/220v AC system equipment?
BATHG
Battery charger (400)
Air compressors (400)
HVAC (400)
Traction converter cooling fan (400)
GPO (220)
HVAC units are provided with what power? (2 answers)
400v AC for primary power
110v DC for control circuit power
If one SIV fails, the remaining SIV will power what?
No.1 air con
No.1 air comp
Full saloon lighting
Both Traction cooling fans
Battery charger
What are the 3 different distribution lines of 110v DC
-Permanent line voltage
-Prepared low voltage
-Prepared low voltage and cav operative line
Permanent line voltage is connected to what, and supplies electrical connection to what 3 things?
Connected to the batteries
Panto electric motor
Step lights
Fluoro cab light
Prepared low voltage and cab operative energises what 110v equipment?
Prepared low voltage - when key has been removed the train enters retention mode and what occurs? 5 answers
What side is the battery isolation switch and fuse located on and what type of car?
A side trailer car
How long do the batteries power the train after loss of overhead?
1 hour
If the safety loop de-enegises, what happens (4)
Emergency brake applies
Data logger
Inhibition of electrical braking and traction (friction only applies)
Emergency brake fault light illuminate
What can activate the emergency brake? (5)
MR below 580
BP below 300 (during train rescue)
Loss of 110
2 or more controller keys inserted
23Q1 and/or 23Q2 breakers trip
How to reset the trip (4 answers)
Train speed under 0.5km
Stationary for 5 seconds
Trip cock device to reset and release
Trip activated light will extinguish
How many seconds does train have to be stationary for Trip to reset
5 seconds
When being rescued by another xtrap, what switch must be turned In main circuit breaker panel?
Safety loop 110v supply switch
Where are the electric door motors located?
Left of every saloon door
After releasing saloon doors, how long do they stay open before closing automatically?
1 minute
When assisting a special needs passenger, how long and what doors does the service retention allow?
10 minutes
1, 2, 5, 6 on leading motor
With the door secondary release feature, how long will saloon doors attempt to close
4 time at 3 second intervals
If after all attempts at closing door, how long will beeping tone last on secondary release feature?
60 seconds
What doors are the manual release INTERNAL DERs on?
2 and 5 of all cars
If a DER is activated mid running, can a train still get traction power?
Yes
When does emergency lighting become operative after batter charger fails?
1 minute
Hiw many seconds does train have to be stationary to reset VICERS?
10 seconds
What are the two positions of the safety loop 110v supply switch
Normal
Rescue
What voltage do highbeam headlights use?
24vAC
What volts does traction cooling fan use?
400v AC
Are doors connected to safety loop?
No, doors have door loop bypass. Not connected to safety loop
