Xtrap Traction Condensed Flashcards
Cause that other one is full of bullshit (87 cards)
1
Q
In CCTV mode, at what speed will camera vision stop displaying (unless a PEI is activated?)
A
3km/h
2
Q
What can cause a Flashing Blue Door Closed light on an Xtrap? (4)
A
- Any saloon door failing to prove closed and locked
- Any fault within the door system and/or train cable connections
- A coupler fault after recently uncoupling train
- Door Emergency Release being activated
3
Q
What is the Main Res pressure in an Xtrap?
A
750 to 900 kPa
4
Q
What is the Main Res Safety Valve pressure?
A
980 kPa
5
Q
What is the Brake Pipe Pressure (Normal Operation)?
A
0 kPa
6
Q
What is Brake Pipe Pressure (Rescue Operation)?
A
550 kPa
7
Q
What is the Holding Brake Cylinder Pressure?
A
120 kPa
8
Q
What is the Full-Service Brake Cylinder Pressure?
A
190 kPa
9
Q
What is the Emergency Brake Cylinder Pressure?
A
210 kPa
10
Q
What voltage do the air compressors run on?
A
400v AC
11
Q
What types of cars have the air compressors attached?
A
Tp (trailer) cars
12
Q
What does the main res supply on an Xtrap?
A
Braking system
Whistle
Aux panel
Trip apparatus
13
Q
What does the auxiliary res supply? (1)
A
pneumatic braking system (friction brakes)
14
Q
The main res pipe supplies air from the main res on each Tp car to what equipment? (4)
A
Aux Res
Aux pneumatic panel
Scharfenberg Coupler
Spring Park Brakes
15
Q
Under normal conditions, is the main res train-lined?
A
Yes
16
Q
What are the four braking systems in use on an Xtrap?
A
Service Brake
Holding Brake
Emergency Brake
Spring Park Brake
17
Q
What end of the trailer car contains the pantograph?
A
Number 2 end
18
Q
How can we identify A or B side on the interior of a trailer car?
A
2 yellow Air Conditioner lights on A side, next to Door 2
19
Q
What are the Roof-Mounted equipment on a Motor Car? (2)
A
HVAC
Resistor Grids
20
Q
What are the roof-mounted equipment on a trailer car?
A
Pantograph
HVAC
Lightning Arrestor
2 high speed circuit breakers (HSCB)
21
Q
What isolating cocks does the Auxiliary Pneumatic Panel contain?
A
Whistle
Uncouple
Trip Cock Reset
Trip Cock Active
Auxiliary Pneumatic Panel
22
Q
What wheels contain Wheel Slide Protection?
A
Wheels 2, 4, 6 and 8 of all cars
23
Q
What wheels contain Spring Park Brakes?
A
Wheels 1, 3 and 7 of M cars
24
Q
What’s inside the Traction Container?
A
Main Switch
Traction Control Unit
Traction Inverter
Line Inductor
Traction Cooling Fan
25
What does the Traction Inverter do?
Converts the 1500 v DC to Variable 3 Phase AC to be used by the Traction Motors
26
What does the Main Switch in the vertical position tell us?
The power is accessible
27
What wheels contain the Tacho speed sensors?
Wheels 4 and 8 of T cars
28
What items are in the auxiliary container?
Static inverters and battery charger
29
What are the components of the Xtrap pneumatic system?
Air Compressors
Compressor gov
Compressor gov iso cock
Main Res
Air Dryer
30
At what speed does the holding brake automatically apply?
0.5km/h
31
What safety devices will operate on an Xtrap if the Safety Loop if bypassed?
None of them
32
The Auto Vigilance Bypass is utilised when which items are defective?
Hand pilot valve
Foot pilot valve
Trip cock device
33
What Tacho-linked equipment will only operate when a train’s speed is below 0.5km/h
Doors release
Uncouple button
Trip reset
Safety Loop Reset
34
How often does a MAD button on an Xtrap emit a warning tone?
Every 30 seconds
35
Does the trip automatically raise and lower with the insertion of the controller key?
No
36
Does the trip automatically raise with the removal of the controller key?
Yes
37
What is the minimum power on the Battery Voltometer an Xtrap can be operated on?
90 volts
38
What must happen with the master controller key before a driver can press the Stable button?
Key must be in and on
39
When stabling an Xtrap, when can the Controller Key be removed?
Once the High Voltage Presence light has been extinguished AND 5 seconds after the One or More Panto Lowered light has been extinguished
40
Where are the Saloon Door Isolation Switches located?
In the pelmet to the left of each door (except door no. 1 which is in the cab)
41
Where are the Pantograph Manual Raise/Lower devices found?
In the pelmet to the right of Saloon Door 4
42
What are the components of the High Voltage Circuit? (7)
- pantograph
- lightning arrestor
- line inductor
- 2 high speed circuit breaker
- traction inverter
- Auxiliary inverter
- rheo brake resistor grids
43
What are the two positions of the High Voltage Supply Switch?
POWER (vertical)
EARTH (horizontal)
44
What are the components of the Low Voltage System
Aux Inverter
400/220V AC
110v DC system
24 v AC/DC system
Batteries
Air Conditioning system
45
What voltage do the static inverters produce?
400v AC
46
What are the 3 distribution lines on the 100v DC distribution system?
Permanent Low Voltage line
Prepared Low Voltage line
Prepared Low Voltage and Cab Operative line
47
What does the Permanent Low Voltage line supply?
Pantograph
Step light
Fluorescent Cab Light
48
When is the Prepared Low Voltage and Cab Operative line energised?
Once the Master Controller key is inserted and on
(pantos will raise and 110v DC will energise the line)
49
How is the Prepared Voltage Line activated?
When the Master Controller Key is removed, a local switch will activate the Prepared Voltage Line and a service retention mode occurs
50
What’s the important thing happens when a train enters service retention mode (prepared low voltage line)?
The train remains prepared
(also pantographs stay raised, cab settings are memorised and lights stay the same etc but we weren’t told to highlight those)
51
How long will an Xtrap run on battery power alone?
An hour
52
What powers the 110v DC equipment
Battery charger
53
What are the three steps to reset the Trip Cock Device after use?
- The train speed must be below 0.5km/h
- Train must be stationary for minimum 5 seconds
- Place the trip switch into Reset
The trip activated light will EXTINGUISH when reset
54
What are we testing when we perform a Safety Loop Bypass Switch test?
Testing for short circuiting
55
What two circuit breakers protect the Safety Loop?
23Q1 and 23Q2
56
What is not available once the Safety Loop Switch is in bypass?
Safety devices and emergency brake
57
What does the Safety Loop Supply switch set to “rescue” allow?
Allows power from the rescuing Xtrap to energise the defective trains Safety Loop
58
How long do Saloon Doors stay open on an Xtrap?
1 minute
59
What activates the Door Service Retention Feature and what does it allow?
If master controller key is released, it allows doors 1,2, 5 and 6 on lead motors to stay open for 10 minutes
60
How many times do doors attempt to close, and at what interval?
4 times, and at 3 second intervals
61
What doors contain the external release mechanisms on motors and trailers?
Motor: 1, 2, 5 and 6
Trailer: 2 and 5
62
What will occur when a DER is activated? (4)
- The FDCL will flash
- The CCTV camera covering the activated door will appear on the DDU
- The ANSW button on the Driver’s Console will flash
- The DOOR EMY HANDLE ACTIVATED status light will illuminate
63
What pieces of equipment are task linked in an Xtrap?
Master controller and whistle
64
How do we reset the VICERS after it has timed out? (4)
- Bring train to stand for 10 seconds
- Master controller into coast
- Observe the Emergency Brake Applied light is illuminated
- Press VICERS acknowledgement button
65
What will occur when a PEI call is made? (4)
Cab speaker will switch on
Alert tone will sound
The ANSW button will flash red
CCTV will activate once driver answers call
66
At what main res pressure do both air compressors come into operation?
below 650 kPa
67
At what speeds can blended braking occur?
Between 5 to 10km/h, or at any time the train decides to apply them
68
At what speed does the ED brake drop out?
5km/h
69
What cars contain ED brakes?
Motor cars only
70
During train rescues, at what pressures will the Safety Loop open and close?
Open: below 300 kPa
Close: above 430 kPa
71
How and where do we perform a continuity test when coupling an Xtrap?
Conducted from lead and trailing centre motors.
Activate lead cab
FEF the Master Controller (Full-service, Emergency, Full-service)
72
Who do we contact once we’ve finished stabling a train?
Fleet
73
What does the Voltmeter indicate?
Level of voltage in the storage batteries
74
What two things do the Traction Control Unit control?
Voltage to the traction motors (powering)
rheostatic braking of the train
75
What do the static inverters provide power for? (4)
400/220v AC system
Air cons
Air compressors
Battery charger
76
What equipment is on the 400v AC system? (4)
Battery charger
Air compressors
Traction Inverter Cooling Fans
HVAC
77
If one Static Inverter fails, what equipment will be affected?
1 air compressor and 1 HVAC unit will stop working
78
When is the Cab Operative prepared line de-energised?
a
When the controller key is removed
79
If the battery charger fails, how long will Emergency Lighting be operational for?
1 minute
80
Do EP/friction brakes operate on Trailer cars?
Yes
81
What does the illumination of the Safety System Isolation Light indicate?
Door Loop Bypass has been turned
82
At what decrease in main res pressure will the Spring Park Brake apply?
300kPa
83
During a post-maintenance prep, which circuit breaker is tripped in the centre motors?
22Q6
84
What are the three bypasses on the driving aid panel?
Tacho, Auto Vig, Safety Loop
85
If there’s no battery power on start-up, what should a driver do?
Check battery not isolated
86
What indications does a driver get if the Safety Loop is de-energised? (2)
Emergency Brakes Applied status light
Emergency brake cylinder pressure (210kPa)
87
What things can open the safety loop? (10)
2 keys in and on
Emergency stop button
Master controller into emergency
Trip activated
VICERS time-out
Auto-vigilance time-out
Circuit breakers 23Q1 and 23Q2
Loss of 110c DC
Main Res pressure switch activated (below 580 kPa)
Brake Pipe Pressure below 300kPa in rescue operation
