Quiz Flashcards
What is the arrangement of a 3 car Siemens Unit?
DMA-T-DMB
How many PEl’s are in the saloon?
2
Next to doors 1 and 2
How many PEl’s are in the saloon?
2
Next to doors 1 and 2
What are the settings of the saloon lights?
Normal and Emergency
On which car is the traction container?
DM cars
Where is the towing cock located?
1 end, B side DM car
What are the reservoirs of 1 end of all cars?
Surge x2
Air suspension
Auxiliary
What extra reservoir is on 2 end of all cars?
Main reservoir
Where are the bogie and air suspension isolates?
In the brake modules
Where are the static inverters located?
On the trailer cars
Where are the compressors located?
A side of the trailer cars
What is on the motor car roof?
-Pamtograph
-Antenna
-Surge arrester
-HVACs
What is located in the trailer car roof?
HVACS
Where are the first aid kits located?
Cabinet behind driver
Where is the fire extinguisher located?
To the right of the driver, under dash
What position does the master selector switch and controller need to be in to remove the key?
Selector in Neutral
Controller in B6
What are the positions of the master selector switch?
Forward
Neutral
Reverse
Set speed
What are the positions of the master controller?
Emergency
Brake B1-B6
Coast 0
Drive D1-D7
When in Emergency, what brake type applies on the whole train?
Pneumatic friction brakes
At what speed does the holding brake automatically apply?
0.2km/h
When will the holding brake release?
-When traction power is detected
-When a brake request is made
What would happen if the park brake is applied on the train if the speed in above 5km/h?
Safety loop will open
Emergency brake will apply
How is the hand pilot valve operated?
Twist the top of the master controller handle
How long after releasing the pilot valve will you receive an emergency brake application?
3 seconds
3 beeps and then the safety loop will open
If the emergency brake is initiated by letting go of the pilot valve, how and when can it be reset?
-Train must be stationary
-Master controller to coast
What is set speed used for?
Low speed and shunting movements
When will the overspeed light illuminate?
Set speed- 6km/h
Forward- 120km/h
When in Forward, at what speed will the emergency brake apply?
125km/h
When the overspeed light illuminates, what other indicator will you get?
Audible tone
When the master key is in and on, what button in the active cab won’t operate?
Train stable button
What does the safety loop fault light indicate?
Safety loop is open, emergency brake is applied
What does a critical fault light indicate?
-Safety critical failures of the EP brake system
-Complete loss of auxiliary power (both SIVS failed)
What does the Reduced performance fault light indicate?
One or more traction systems has become defective
If a door fault occurs, when will the Door System fault light extinguish?
Once the defective door has been isolated
What does a compressor fault light indicate?
Air pressure drops below the pressure setting
What does the line voltage light indicate?
Overhead power is present
When in rescue mode, what will the BP mode indicator light do?
It will flash in every cab
What is the ED brake inhibit button for?
Used for testing the operation if the EP brake by isolating the ED brake. For maintenance purposes
Once the ED brake inhibit is pressed, how long is the electric brake isolated for?
5 minutes
When could the ED brake inhibit light illuminate?
During wheel slip and the ED brake is knocked out for EP brake application
How many CB’s are in the cabinet?
36
What are the bypass switches in the cabinet?
-Door loop bypass
-Safety loop bypass
-Trip cock bypass
How many positions does the BP mode switch have?
5
What is the deadmans switch for?
Used to activate the pilot valve test mode to test pilot valve functionalities
Once placed to on, how long is the deadmans test switch available for?
60 seconds
Which two MCB’s differ between a DMA and a DMB car?
DMA= PA system
DMB= CCTV recorder inverter
What does turning the door loop bypass key switch enable?
Get traction power regardless of the position of the doors
When the safety loop bypass is operated, does it bypass all of the equipment on the safety loop?
No
What does the Safety loop bypass bypass?
Pilot valves
Low MR
Holding brake relay
Door close relay
Overspeed
BCU major event relay
Auto coupler relay
ESB’s in non-active cabs
What does the trip cook bypass do?
Bypass the trip in the even of a defect
When the safety loop or trip cock bypass are turned, how is the timer of the secondary circuit reset?
MAD button
45 steady, 10 seconds flash
Here are the trailer MCB panel and fault lights located?
Above door 2
What is the 1500v DC equipment?
Panto
Surge arrestors
High voltage container
HSCB
Traction container
Static inverter
What is the purpose of the surge arrestors?
To protect the high voltage equipment from a surge from the overhead
What is the high voltage container for?
Collection point for the 1500v DC from the panto
Distributes to the traction container and SIVS
Where is the HSCB?
In the high voltage container
What is the purpose of the HSCB?
Disconnects traction equipment from the overhead in the case of an over current supply, traction fault or short circuits
What is the purpose of the traction container?
-Converts 1500v DC to 3 phase variable AC for the traction motors
-Houses the TCU
What is in the static inverter unit?
2 SIVS and a battery charger
What equipment is powered by the 400v AC from the SIVS?
-Battery charger
-Air compressor
-Traction control module
-HVACS
-GPOs
What voltage to the GPOs use?
240v AC
What does the battery charger power?
-Charges the battery
-Communication system
-Lighting
-Door system
-Traction control system
-EP brake control
-Safety loop
When are the batteries used?
-Loss of overhead
-Both SIVS fail on a unit
-Startup and raising pantos
Is one SIV becomes defective on a unit, what will happen?
Contacted closes automatically to allow remaining SIV to supply to all of the auxiliary equipment
What indicators will you get on the fault status panel when a SIV fails?
-Maintenance fault light and Unit (1 or2)
-SIV light will illuminate on the T car fault panel
What happens to the HVACS when one SIV fails?
They run at 50% capacity
What indication on the fault and status panel would there be if both SIVs fail on a unit?
Critical defect
How are the pantos raised on startup?
-Key in and On
-Wait for audible tones to stop
-Press panto raise button
-Check SPB is on
-Check high voltage light on
-Check panto raise button extinguished
Where is the manual panto crank handle?
Right of door 2 on a motor car
What must you do first before manually raising a panto?
Train stable
How is a saloon door isolated?
Tri-key at the door
If the door is obstructed, what will occur?
Attempt to close 3 times at 3 second intervals, then remain open
After how long will the saloon doors automatically close?
60 seconds
What button allows doors 1 and 4 to remain open when assisting a wheelchair?
Auto door close inhibit
What indication does the driver get when a DER is pulled?
-DER indicator light
-Audible tone
-CCTV and PEI become active once answered
What voltage energies the safety loop?
110v DC
What opens the safety loop? (10)
-ESB
-Master to emergency
-Releasing pilot valve
-Key to off
-Coupler failure
-Overspeed
-Critical fault in BCU
-Main res below 600kpa
-Trip activation
-VICERS timeout
After the safety loop has opened, how can it be reset?
Master controller to Coast while train is stationary
If the safety loop is bypassed, do any ESBs work?
Only in the leading cab
Will the pilot valves still operate if the safety loop is bypassed?
No
If the safety loop is bypassed, what button needs to be pressed?
MAD button
What indication is received when a PEI is activated?
-Cab speaker on
-Warning tone
-PEI button will flash
After acknowledging:
-CCTV will activate
What indication is given when the DDA is pressed?
-DDA request button flashes 5 times then goes steady
-After acknowledging, CCTV for 10 seconds
What are the components of VICERS?
-Acknowledge button
-Audible tone
-Indicator light
-Vigilance Activation Relay
What is task linked to the VICERS?
Master controller
Whistle
What is the normal operating pressure of the Main reservoir?
850-1000kPa
At what pressure of the main res will the compressor start?
850kPa
What is the purpose of the air dryer?
Removes moisture, oil and debris from air
What systems use compressed air?
-Main reservoir
-Auxiliary reservoir
-Air suspension reservoirs
-Horn
-Park brake
What does the Auxiliary reservoir supply air to?
Pneumatic brake
What is the function of the Surge reservoirs?
Supply air directly to the air bags when the train tilts, uneven load or any imbalance
What brake systems are there?
Emergency
Holding
Service
Park
What is holding brake pressure?
110kPa
