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
