Underframe Flashcards
What cocks are in the Auxiliary Pneumatic Panel?
Whistle
Uncoupling
Trip cock reset
Trip cock activate (isolate)
Aux pneumatic panel
What wheels are the wheel slide protection sensors fitted to?
2,4,6,8
Where are park brakes fitted?
Axles - 1,2,3
Wheels - 1,3,7
What main res. pressure do park brakes come on?
350kPa
What equipment is in the Traction Container? (5)
Main switch
Traction Control Unit (TCU)
Traction Inverter
Line Inductor
Traction cooling fan
What is the TCU?
Main computer that controls traction equipment
Acquires info (speeds, commands, weight) and determines appropriate amount of power
Controls powering and ED braking
What does the Traction Inverter do?
Converts 1500vDC to …
Variable 3 Phase AC
To be used by traction motors
So … what do traction motors run on?
Variable 3 phase AC
( not 1500vDC)
What wheels are the Tachometer Speed Sensor cables fitted on?
Wheels 4 and 8 - Tp Cars
What equipment is in the Auxiliary Container?
2 Static Inverters
Battery Charger
What do the Static Inverters do?
Convert 1500cDC to 400vAC
To operate Auxiliary equipment
Supplies power to the Battery Charger
What is the Auxiliary Equipment?
Battery charger
Air Compressors
Traction Cooling fan
HVAC
What makes up the Pneumatic Supply System?
2 Air Compressors
Main reservoir (650)
Compressor Governor
Compressor Governor I.C.
Air Dryer
What is POTS?
Where is it located?
Position of Train System
GPS
It’s on Tp
What do the static inverters do
Vs.
What do the traction inverters do
Static inverters -
1500vDC to 400 AC for Aux. Equip and battery chargers
Traction inverters -
1500vDC to variable 3 phase AC for traction motors
