HCMT Traction Flashcards
What is the MR pressure?
850-1000kpa
What MR pressure is needed for the pantos to raise?
700kpa
What is the emergency brake pressure?
280-460kpa
What is the max brake pressure?
250-380kpa
What is the holding brake pressure?
140-240kpa
What is the MR safety valve pressure?
1050kpa
At what MR pressure will the safety loop open?
<600kpa
What variance is allowed for all pressure?
+/- 20kpa
What is the consist of the HCMT?
Tc - DMp - Mp1 - DT - Mp2 - DMp - Tc
Which cars have pantos?
DMp and Mp
How is the 7 car HCMT numbered?
90__, 91__, 92__, 93__, 97__, 98__, 99__
- no 94, 95, 96
When unlocking the door with the cab reader, how long will the electronic striker remain unlocked?
5 seconds
Where are the fixed wheelchair ramps located?
Tc car doors 1 + 2
Where is the fire extinguisher located in the saloon area?
Mp2 car next to door 3
What is the roof mounted equipment on a Tc car?
- cab HVAC
- air exhaust
- saloon HVACs
What is the roof mounted equipment on a DMp car?
- pantograph
- air exhaust
- saloon HVACs
What is the roof mounted equipment on a Mp car?
- pantograph
- air exhaust
- saloon HVACs
What is the roof mounted equipment on a DT car?
- air exhaust
- saloon HVACs
Which side is the MR tank located on all cars?
B side
How many surge reservoirs are located at each end of all cars?
2 each end
Which cars have SPB?
All cars except Tc
How many SPB are there on each car they are fitted to?
One on every axle
What is the primary suspension?
Rubber laminated springs
What is the secondary suspension?
Air bags
Does the driver have control over when the sanders will activate?
No
What 5 isolating cocks are in the brake control module?
- brake supply
- bogie 2
- bogie 1
- tread scrubber (Tc cars only)
- park brake (except Tc cars)
- sanders
What coupler is fitted to a HCMT?
Sharfenberg
How many people are needed to lift the coupler cover?
2
What 5 isolating cocks are under the coupler cover from left to right?
- uncouple device
- towing unit
- BP end cock
- MR end cock
- horn
What is the purpose of the towing unit?
Read and write brake pipe during train rescue with other train types
What 3 things are inside the auxiliary power supply container?
- auxiliary inverter
- medium voltage (MV) box
- battery charger
For how long will the batteries provide power to the train in an emergency?
Minimum 2 hours
What 3 things is the air supply unit (ASU) comprised of?
- main air compressor
- air dryers
- filters
What is the purpose of the air supply unit?
Maintain MR pressure within the operating range
When will the trip automatically lower?
Master controller key switch turned on
What 2 things are in the high voltage box?
- HSCB
- harmonic wave detection device (HWDD)
What is inside the variable voltage variable frequency (VVVF) container?
- 2 x traction inverter modules
- TCU
What is the purpose of the auxiliary compressor?
Provide air for the pantograph when MR pressure is low
If you isolate the panto cock on the DMp car, will the pantos lower?
No -> have to turn the cock in the saloon area
What is the purpose of the brake resistor grids?
Absorb the energy generated by the traction motors during ED braking and dissipate it as heat
What is the purpose of the medium voltage box?
Maintain train lined medium voltage (415vAC) produced by the auxiliary inverters
What are the 3 ways the cab can be accessed through the doors?
- badge reader
- remote access
- cab emergency access device (EAD)
How long do you have to hold the EAD for to open the cab externally?
10 seconds
When is the only time the EAD IS activated?
When the train is powered and the cab is active
What are the 6 items of cab emergency equipment on all trains?
- red and green flags
- fire extinguisher
- first aid kit
- switch stick
- ATWs
- ETCJC
What position must the OJT seat be placed when not in use?
Parked position
What are the 4 screens for drivers from right to left?
HMI, DMI, SDU, back up screen
What are the 2 steps when activating the cab?
- master controller switch to on
- hold access card over reader for 1 second
What are the 4 positions of the reverser?
- forward
- neutral
- reverse
- off
What are the 7 positions of the master controller?
- emergency
- max brake
- braking zone
- min brake
- coast
- min power
- powering
If the hand/foot pilot valve is released, after how long will the emergency brakes apply?
1.5 seconds
If the master controller is at 50% or less, must a pilot valve be set?
Yes
How long does a driver have to inhibit an internal DER that has been activated?
20 seconds
How long will the door be prevented from opening if the DER inhibit is activated?
120 seconds
At what intervals will the MAD button beep?
10 seconds
What 4 things are in the A side electrical cabinet in the drivers cab?
- isolation/override controls
- circuit breakers
- communication equipment
- vigilance equipment
What 4 mcbs would cause the train become disabled of unable to reset (BETC)?
- brake control supply
- emergency brake loop power supply
- traction control
- cab activation
What are the 6 bypass switches located in the A side cabinet?
- MR pressure switch
- traction interlock
- zero speed
- trip
- driver safety device
- HCS isolate
What are the 5 positions of the recovery mode switch?
0 - default
1 - pushed by other train
2 - pulling other train
3 - pulled by other train
4- pushing other train
Where are the primary saloon doors?
1 + 2 Tc car
Where are the secondary saloon doors?
1 + 2 of DMp cars
On which cars are the internal fire doors fitted?
DMp and DT
Where are the internal and external DERs fitted on all cars?
- internal -> left of each door
- external -> right of each door
When will the internal fire doors automatically close?
- upon detection of fire or smoke
- when train is stabled
What are the 2 types of passenger intercom buttons?
- assistance intercom -> blue
- emergency intercom -> red
Where are the portable wheelchair ramps located?
Doors 1 + 2 of DMp cars
What are the 2 locations where shortened boarding ramps are located?
- plt 6 at FSS
- plt. 1 east end at CBE
What are the 2 positions of saloon lighting?
- normal
- emergency
How long will emergency lighting last?
- dim after 10 minutes
- approximately 2 hours
What are the 3 isolating cocks in the saloon area?
- brake supply -> B06 next to door 4 all cars
- SPB -> B07 next to door 3 all cars except Tc
- panto -> U12, no. 1 end of DMp and Mp cars
When using the stopping aid camera, where should the platform stopping mark be when the driver comes to a stop?
- between the red lines
- ideally on the green line
What is the purpose of the dynamic tab on the SDU screen?
Indicates the screen is live and isn’t frozen
How long does a driver have to answer a PEI call?
30 seconds
If a PEI call isn’t answered in time, what will happen?
Will be forwarded to Metrol
What indication will a driver get when a PEI call is made?
- alert tone in cab
- PI button will flash
- applicable car highlighted red
- PI banner showing location of activated PEI
What indications will a driver get if an internal DER is activated?
- affected car will illuminate red
- EED icon and banner
What is the purpose of the TMS heartbeat?
Shows the screen is ‘alive’ and not frozen
What will be seen on the HMI for each level of alert?
- level 1 -> audible tone in high low pattern, flashing red bar
- level 2 -> audible tone in low high pattern, yellow bar will flash
- level 3 -> yellow bar will remain steady, no audible tone
What does each colour mean on the door status indication?
- solid grey box inside -> doors closed and inhibited
- solid green box inside -> door closed but not inhibited
- solid white box outside -> door open
- steady, solid red box -> failed door
- flashing red box -> DER pulled to stage 2, EAD activated
- solid yellow box inside -> door isolated
- empty/blank box inside -> unknown status
What does a red park brake tile on the screen indicate?
SPB applied
Which push button can be used to reset the HSCB?
TCU/ACU reset
What is the purpose of the harmonic wave detection device (HWDD)?
Provide a clean steady supply of power to the traction and auxiliary inverters
What 4 things does the 415vAC provide power to (BATH)?
- battery chargers
- air compressors
- traction equipment cooling systems
- HVAC - cab and saloon
What power does the traction inverters provide to the traction motors?
3 phase variable AC
What functions will be available from the batteries during emergency conditions?
- saloon lighting reduced to 50% normal brightness after 10 minutes
- HVAC fresh air fans operate for at least 2 hours
- saloon door controls operate as normal
Up to how many times can a mcb be reset?
Up to 2 times, unless attempting to clear totally disabled train from main line
What 9 things would cause the emergency brake to apply?
- master controller in emergency
- pilot valve not set while in motion/50% brake application when stationary
- ESB activated
- trip cock activation
- vigilance penalty application
- MR <600kpa
- towing unit demand for emergency brake
- safety system bypass reminder time out
- physical interuption of safety loop (train separation)
How do you reset the safety loop after it has been opened?
- train stationary >3 seconds
- reason for emergency brake application has been reset
- master controller to max brake and reverser to neutral
What 9 things is compressed air supplied to?
- main reservoirs
- pantos
- air suspension systems
- EP braking systems
- trips
- sanding equipment
- couplers
- horns
- driver and OJT seats
How many compressors are there on a 7 car HCMT?
2
What 2 instances would cause the auxiliary compressor to operate?
- insufficient MR pressure on the car to raise the local panto
- car has been isolated from the MR system
What is the purpose of the brake supply reservoir?
Supply compressed air to the EP valves in the brake control module to charge the BCs
What is the purpose of the post trip speed restriction function?
Restricts the speed of the train by cutting traction power >25km/h
For how long will the post trip speed restriction be applicable for?
500 seconds (8min 20 sec)
How long must a driver wait before they can cancel the post trip speed restriction?
Minimum 30 seconds
Which wheels are tread scrubbers fitted to?
Wheels 3 + 4 of Tc cars
What braking systems are available on each car type?
- Tc cars -> EP, holding, emergency
- DMp -> EP, holding, emergency, SPB, ED
- Mp -> EP, holding, emergency, SPB, ED
- DT -> EP, holding, emergency, SPB
Above what speed is ED braking available?
> 3km/h
What is the speed threshold?
0.5km/h
What 5 things are task linked to the vigilance timing cycle?
- vigilance acknowledge button
- movement of the master controller
- activating horn
- headlight/wiper/washer switch
- safety system bypass acknowledge
Between what speeds does brake blending occur?
3-10km/h
If isolating one end of air suspenision of a car, do you need to isolate the other end of the car as well?
Yes
What will happen to the traction if any cab door is left open?
Traction will be inhibited
What does ASDC stand for?
Automatic selective door control
What is the purpose of ASDC?
Help prevent off side and off platform door releases
At what distance from the stopping mark will the stopping aid camera activate?
10m
When will the stopping aid cameras turn off when departing?
When rear of train is 20m past the end of the platform
What will happen if a driver overshoots the stopping mark by 10m?
Doors will be unavailable for use and remain grey
Can the driver still release the saloon doors if they under/overshoot within 10m and the saloon doors not correctly aligned are inhibited?
Yes -> inhibited doors won’t open
After how long will saloon doors close after being opened?
60 seconds
What is the purpose of the auto close door inhibit?
Prevent auto closing of saloon doors after 60 seconds
How many times will a saloon door attempt to close if obstructed?
4 times
If a cab door is open, will the driver get a FDCL light or a blanked door closed light?
Blanked
What will happen if there is a substandard beacon read?
Automatically keep the first or last saloon door inhibited when the train arrives on the platform
When can a driver perform an ASDC override?
When there is an ASDC beacon read failure
What are the 4 steps of the ASDC override procedure?
- A -> announcement, inform passengers of the delay
- S -> SDU, check cameras to confirm which doors are on the platform
- D -> door, open cab door and check correct platform side
- C -> cover, loft cover on correct ASDC override button
Can a driver inhibit an external DER after being activated?
No
What alert will a driver see on the HMI when an internal DER is initially activated?
Level 3 alert
How long does the cab release inhibit button stop the EAD from being able to release the cab door?
5 minutes
What are the 2 times when the internal fire doors are closed?
- smoke is detected
- train is stabled
Do drivers do a post maintenance prep on a HCMT?
No
What are the 4 steps on train start up to start the train?
- turn stable/start up switch to start up
- master controller switch to on
- tap access card on badge reader
- press panto raise
What position must the set speed switch be set in after arriving in a siding to stable?
Yard mode
When in yard mode, at what speed will traction power be cut off?
15km/h
What 5 things happen when the set speed switch is in wash mode?
- close external dampers
- deactivate HVACs
- inhibit holding brake
- charge MR to max operational pressurr then shut down air compressors
- restrict traction power >3.5km/h
Up to how long could it take for a train to complete stabling?
Up to 1 hour
What are the 7 safety critical fault lights on the HMI?
- internal smoke
- external smoke
- safety system bypass
- flat airbag
- locked axle
- EMY brake
- trip not set
