Siemens Electric Flashcards
What is the 1500vDC equipment
(6 answers)
Pantos
High speed circuit breaker
Static inverters
Surge arrester
Traction inverter
Ground switch
What is the purpose of the surge arrester
To ground surges if power from the overhead wire
What is the high voltage container for
Collection point of the 1500 v DC from the Pantos
Where is the HSCB
In the high voltage container
What is the purpose of the HSCB
It safely disconnect the traction equipment from the overhead in event of over- supply, traction fault or short circuit
What is the purpose of the traction inverter
Converts 1500 vDC to 3 phase variable AC to the traction motors
What is in the static inverter unit
2 static inverters
Batter charges
What equipment is powered by 400vAC
Battery charger
Air compressor
Traction control unit
HVAC/Air Con
240 v AC GPO
B.A.T.H G
What voltage does the GPO use
240v AC
What does the battery charger power
(8 answers)
Direct charge of the batteries
Communication system
Internal and external lighting
Door system
Traction control equipment
EP brake control equipment
Safety loop
Other various control circuit and equipment
When are the batteries used
To raise the Pantos
Loss of power batteries will supply 110vDC
If one static inverter becomes defective on a unit, what will happen
Air cons will run at 50%
When one static inverter is defective, what indications will you get on the fault and status panel
Maintenance fault
What indication on the fault and status panel would you get if both static inverters failed on a unit
Critical defect/fault
On start up how do you raise the Pantos
place your key to the ON and press the Panto Up button
Where is the manual panto raise crank handle
Motor RHS door 2
What is the first thing you will do if you need to go and manually raise a panto
Stable the train
How is a saloon door isolated
Use tri key to isolate above each door
If there is an obstruction in a door, what will the door do
Attempt to close 3 times and then stay open
After how long so the saloon doors automatically close without the close command button
60 sec
What button needs to be pressed to allow door 1&4 to remain open when assisting passengers with special needs
Auto door close inhibit
When DER is operated, what indication will the driver get
- DER indicator in active cab
- flashing door close light
- Audible warning buzzer
What voltage energises the safety loop
110v DC
How does the driver manually open the safety loop ( 4 answers)
Emergency stop button
Master controller to emergency
Dead man features
Master key to OFF
What other equipment/ functions will open the safety loop (8 answer + circuit breakers)
Semi- permanent coupler fails
Electrical coupler fails
Over speed is exceeded
Critical fault in brake unit
Main res falls below 600kpa
Trip activated
VICERS active
Short circuit in safety loop
Circuit breakers:
Safety loop
Emergency brake valve
Friction brake and monitoring
Automatic coupler control in the leading centre cab
Cab/train manned
After the safety loop opens, how can it be reset
Master controller to 0 position
If the safety loop is by-pass, do any of the ESB buttons work
Only active cab
If the safety loop bypassed, will the pilot vales still open
No
If the safety loop is bypassed, what button needs to be pressed to keep the emergency brakes from applying
MAD button
What equipment is task linked to VICERS
Master controller
Whistle
After activation, how is VICERS reset
Train at 0km
Master controller coast “0”
Wait 10 sec
Push VICERS acknowledge button
What do you do if VICERS fault light stays on after testing VICERS
Isolate and TMM to TC
When testing VICERS what will the driver see
Acknowledge button will flash
Vigilance repeater light will flash in accordance with acknowledge button
Tone in the cab
Safety loop fault light will flash 3 times
BP will raise to Emy and lower to holding
Vigilance fault light will illuminate
