Xtrap Traction Flashcards
Roof mounted HVACs provide the following:
- Heating
- Ventilation
- Air Conditioning
- Demisting (Cab)
- Cab footwell heater
Xtrap trailer car pantograpg is located at which end?
No.2 end
Trailer Car has 2 small AC lights located where?
A side wall, next to door 2
Roof Mounted Equipment
Motor Car
HVACS
Resistor Grids
Roof Mounted Equipment
Trailer Car
- Pantograph
- HVAC
- Panto and Lightning Arrestor
- 2 HSBC (high Speed Citcuit Breakers)
The Auxiliary Pneumatic Panel is located where?
Near the B side cab door near the No.8 wheel.
The Auxiliary Pneumatic Panel contains what?
- Whistle I.C
- Uncoupling I.C
- Trip Cock Reset I.C
- Trip Cock Active I.C
- Auxiliary Pnkeumatic Panel I.C (all)
WUTTA
Park Brakes are fitted to which axels and wheels of an Xtrap Motor Car?
- Axels 1,2,3
- Wheels 1,3,7
Within the Auxiliary container there are?
- 2 static inverters
- Battery Charger
What are static inverters for?
Used to convert 1500v DC to 400v AC to operate auiliary equipment. Alos supplies power to the battery charger.
CCTV camera vision will not be displayed while the train is travelling above?
3kms
Except when PEI is operated
The High Voltage Circuit and equipment comprises the following compnents:
- Pantograph
- Lightning Arrestor
- 2 High Speed Circuit Breakers
- Line Inductors
- Traction Inverters
- Rheostatic Brake Resistor Grids
- Auxiliary Inverter (SIV)
Maximum output of battery charger
123.6vDC
124.Nominally 110vDC
Low Voltage System
The Low Voltage Circuit comprises of the following components and systems:
- Auxiliary Inverter
- 400/220vAC system
- 110vDC system
- 24v AC/DC system
- Batteries
- Air Conditioning system
Each SIV (Static Inverter) produces 400vAC, and supplies power to the following what equipment?
- 400/220vAC system
- 110vDC system
- Air Conditioners
- Air Compressors
- Battery Charger
- Traction Converted Cooling Fans
If one SIV (static Inverter) fails, the remaining SIV will supply power to the following:
- No.1 Air Compressor
- No.1 Air Conditioner on each car
- Full Saloon Lighting
- Both Traction Converter Cooling Fans
- Battery Charger
Low Voltage 110v DC system
The 110vDC distribution systems comprise of 3 distribution lines, each corresponding to a different state of the train, they are?
- Permanent Low Voltage line
- Prepared Low Voltage line
- Prepared Low Voltage and Cab Operative line
The Following Equipment is powered by 24v AC power
- Headlights (hi-Beam)
- CCTV cameras in passenger saloon
Prepared Low Voltage and Cab Operative
Once Master Controller key is inserted and ON (active) the pantos raise. Local switches in each car energise the Prepared Low Voltage and Cab Operative. Once energised, the following 110vDC equipment is operational:
- Pantograph operational
- Status and Fault indicatons
- Traction Control
- Braking Control
- Door Control
- Safety Loop
- Communications
- Emergency Saloon Lighting
- Normal Saloon Lighting
The Safety Loop is comprised of?
- ENergency stop button
- Vigilance devices
- Trip
- Emergency position of the Master Controller Handle
- The Monitoring Pressure Switchin the Main Reservoir located on the trailer
- The Monitoring Pressure Switch in the Brake Pipe located on the trailer
Permanent Low Voltage line
PLV is permanently connected to the batteries and supplys an electrical connection to the following:
- Pantograph Electrical Motor
- Step Lights
- Fluorecent Cab Light
Prepared Low Voltage line
WHen thenMaster Controller key is removed, local switches in each car energises the Prepared Low Voltage line. The train enters a service retention mode where the following will occur:
- Train remains prepared
- Pantograph remain raised
- Settings of the last cab in service are memorised
- Marker Lights, Door Lights and saloon Lights will retain whatever settings they had prior to the remval of the Master Controller Key
The Safety Loop circuit is protected by?
Safety Loop Positive (23Q1) and
Safety Loop Negative (23Q2) circuit breaker
22Q6 Multi-Unit Relay
The Safety Loop Test, tests for what?
Testing the Safety Loop for a short circuit
Emergency Brake application will occur when:
- MR pressure falls below 580Kpa
- BP pressure falls below 300Kpa
- When Trip devise is activated or raised
- Hand or Foot Vigilance devices are not set
- Emergency Vigilance button not pressed withing 40 secs
- Loss of 110vDC
- Master Controller pllaced into Emergency
- Emergency Stop Button pressed in any cab’
- Two or more controller keys at the same time
- 23Q1 or 23Q2 Circuit breaker trip in the leading cab
To reset the trip cock, what has to happen?
- Train must be below 0.5km/h
- Stationary for 5 seconds
- RESTET and release
- Trip activated light will extinguish
Saftey Loop 110v Supply Switch positions?
Normal and Rescue
Saloon Doors
The Service Retention Feature allows which doors to remain open, and for how long?
Used when assisting special needs passengers
Doors 1,2,5,6 MC
Keeps doors open for 10mins when Master Controller Key has been removed. After 10mins they automatically close.
Saloon Door Automatic Opening and Closing
When a saloon door is released and opened, it will remain open for how long?
1min
Saloon Door Emergency Door Release
The External Emergency Door Release Tri-Key Switch operates on which doors?
- 1,2,5,6 of motor cars
- 2,5 trailer cars
If the Key switch is vertical the FDLC will continuosly flash
Saloon Door electric motors: Locations, and lever positions
Locations: To the left of each door in the saloon (Door 1 motor accessed within driver cab)
Lever positions: ALL the way UP- FREEWHEEL
ALL the way DOWN- LOCKED CLOSED
Saloon Door
Secondary Release Feature:
If after 4 attempts to close and the obstruction is not removed, what happens?
A beeping tone will sound in the passenger saloon for 60secs
Saloon Door
Secondary Release Feature
Door attempts 4 times to close, at 3 sec intervals
Door Emergency Release (DER) Internally
When the DER is activated, the following will occur:
- The Door CLose (Blue) light will flash
- The door can be manually operated
- Traction power will still be available while the train is still running, but if stopped, tracion power will be inhibited
- The CCTV camera covering the door with the activated DER will display an image of the area around that door on the DDU (only after driver answers call)
- The ANSWER (Red) Buttonon the drivers console will flash
- THE DOOR EMY HANDLE ACTIVATED status light will illuminate
Lighting system
The carriage lighting system comprises of:
- Passenger Saloon Lighting 110vDC
- Emergency Lighting 110vDC
- Cab Lighting 110vDC and 24vDC
- Step Lighting 110vDC
Resetting the VICERS system after activation
If the VICERS system activates the safety loop, the driver must?
- Bring the train to a stand (0km) for 10secs
- Master Controller into Coast
- Observe the Emergency Brake Applied Light is illuminated
The Driver can now push the VICERS acknoledge button to reset the emergency brake application
Speed Threshhold 0.5km/h
What train functions are used by the Speed Threshold Train Line?
-
Uncoupling- of a Multiple Unit
* Passenger Saloon Door Release- - Resetting the Safety Loop- after reduction in Brake Pipe Pressure during Train Rescue
- Resetting the Trip Cock Device- after activation. The cab must be stationary for 5 secs to reset.
Pressures
MR Pressure?
750kpa-900kpa
MR Safety Valve Pressure?
980kpa
BP Pressure (normal operation)
0kpa
BP Pressure? (Rescue operation)
550kpa
Holding Brake Cylinder Pressure?
120kpa
Full Service Brake Cylinder Pressure
190kpa
Compressor Govenor Isolating Cock
Should the compressor governor be ISOLATED, what happens to the compressor?
If the compressor is running, it will stay running non stop
If the compressor is stopped, it will remain stopped
Name the 4 braking systems on an Xtrap?
- Service Brake
- Holding Brake
- Emergency Brake
- Spring Park Brake
Emergency Brake Cylinder Pressure?
210kpa
What is service brake?
A service brake is the blending of
* Electro-Dynamic Brake (ED)
* Electro-Pneumatic (EP) friction brake
Emergency Mode Switch
The EMS has 5 Positions, they are:
Takes a train out of normal operation and into a degraded or rescue mode
- Online Holding Brake Inhibit
- Normal
- Rescued
- Rescuing
- Rescuing in propulsion (When youre being rescued by a completely different train)
ED brakes operate at speed above?
10km
ONly works on MCars as its provided by the traction motors
Holding Brake applies at a speed of?
0.5km/h
Low Speed Running Brake Test
Where is the test performed?
What speed is the test performed at?
What brake is being tested?
- When docking out of siding location (on a train previously prep’d
- Approx 5km/h
- Service
Manual Releasing Spring Park Brake
The release cable is locked with a padlock, which can be opened with which key?
AX Key
Running Brake Test
What brake is being tested?
What speed?
- Service Brake
- Track Speed
Running Brake Test
When do you carriy out a Running Brake Test?
At the first suitable oppertunity prior to the first required stop in the following situations:
* After taking control of the train
* changing ends
* Following dividing and attaching
* When transitioning between dry and wet
* Following a defect or alteration to train equipment
Train fails to uncouple, What circuit breaker needs to be pulled and later reset?
22Q6
Full Cab Inspections
Performed during PM or ML preps, driver must chech/test all equipment in the cab. Name the Vital safety equipment tests?
- Brake
- Hand and Foot pilot valve
- Emergency stop button
- Safety Loop
- VICERS
- Emergency Auto-Vigilance
- Trip
- Traction Test (lead motor only)
Pantograph test
Pantographs should lower in what timeframe?
10secs
What are the operating positions of the saloon lights?
0- Emergency
1/2- One side
1- normal
What setting are there for cab lighting?
OFF/Cab(fluro)/Desk
What does the HVAC control?
Heating, Ventilation, A/C, Demister, Footwell heater
On what cars are battery boxes?
TC
On what cars are traction converters?
MC
On what cars are auxiliary converters?
TC
What is t he roof mounted equipment on a T Car?
What are the 3 bypass switches on the driving panel?
What 2 lights are illuminated in a non active cab?
High Voltage
Other cab Active
What is the minimum voltage on the voltmeter for the operation of the Xtrap?
90v
Whats located in the electrical MCB Panel?
Circuit Breakers
Door Loop By pass
HVAC Bypass
110vDC supply for safety loop
What Key unlocks Xtrap Doors?
V29P
Driver seat height adjuster height is controlled by:
24DC?
110DC?
12DC?
24DC
Where are wheel Chair ramps located?
1,6
What does the Master Controller do?
Applies traction, braking, Emergency Braking?
Reverser Positions?
Forward
Reverse
Neutral
The Auto vigilance bypass switch is used when which of the following equipment is defective?
- Hand Pilot Valve
- Foot Pilot Valve
- Trip
5 things that will happen if the safety loop de-energises?
- Emergency brakes will apply
- Emergency Brakes Applied Will illuminate
- Traction power inhibites
- Rheo Brake inhibited
- Recording of emergency braking by the data logger
Whenwould the rescue turret switch in the EC need to be placed into the rescue position?
When an Xtrap has a failure of 110vDC power supply to the safety loop.
What wheels are the spring park brakes fitted?
1,3,7 MCar
No Brakes on a Tcar
What happens to HSCB when a train is prepared?
They cose to supply 1500vDC to the traction converters.
What do the HSBC protect?
Traction Equipment
When would HSBC trip?
If a short circuit develops on the train, or there are disruptions in the overhead
The safety loop will fail when the MR pressure falls to what?
580Kpa
Where is the primary suspension located?
Between the axle box and the bogie
When attaching, if the other trains pantos are raised, what do you check in the other motor?
Apart from the coupler and cocks
Emergency Brakes applied
Another Cab Operative IS NOT illuminated
What does the Wheel Slide Prevention do?
Monitors the spin/slide of the wheels during powering and braking to allow for automatic correction, aloso drop out the rheo brake
Name the 3 positions of the Vicers Keyswitch?
- Operate
- Isolate
- Test
Does the Key need to be in to conduct a train stable?
When can it be removed?
YES
5 seconds after the High Voltage presence extinguishes and
‘one or more pantos down’ illuminated
What does the secondary suspension consist of?
- L-Lateral Bumo Stoppers
- S-Spring Units
- D-Dampners (Lateral and Verticle)
LSD
The MR pipe connects the MR on the T car to what 3 pieces of equipment?
3 A’s
* Aux Res
* Aux Pneumatic Panel
* Automatic coupler
What voltages does the high and low beam headlights runoff?
High Beam = 24v AV
Low Beam = 24v DC
What are the 4 potitions of the Master Controller?
- Emergency
- Brake
- Coast
- Power
Under whsat circumstances is the emergency auto vigilance bypass turret switch used?
When the following items are defective:
1. Trip cock devise
2. Hand pilot valve
3. Foot pilot valve
How do you BYpass the 2 vigilance devices?
ANd what must then be pressed every 30-40 secs
Break seal, then, place the emergency vigilance bypass turret switch to bypass position and hold it there.
The Auto-vigilance bypass button.
How mant Xtrap cars can be electricall coupled and why?
9 only, because the safety loop is compromised above that and there is too much resistance
On train startup, when you put the Key in, what 2 fault and status indicator light must you observe extinguish in 20 secs?
Auxiliary Fauly
Battery Charger Fault
What does the voltmeter gauge indicate?
The level of voltage available in the storage batteries (must be 90v or above)
Internal Saloon air con faults lights are named?
A and B fault lights
A points to No 1 end
B points to No 2 end
The following equipment is powered by 24vAC power?
- Headlights- Highbeam
- CCTV Cameras
What frequency with the Memorey aid buzz in an Xtrap?
30secs
The bogie brake cyclinder gauge indicates air pressure in which brake cylinders?
Wheel 8 Bogie 1
How many passenger emergency intercoms exist in an Mcar?
5
MR safety relieve valve set at what pressure?
980Kpa
Brake pipe Pressure safety loop opens at what pressure?
300Kpa
MR pressure falls below what then the safety loop opens?
580Kpa
Brake pipe pressure above what, then traction avalible?
480Kpa
Brake pipe pressure safety loop closes at what pressure?
430Kpa
MR pressure rises above what, then the safety loop closes
650kpa
