Traction Siemens - Electrics Flashcards
Where are pantos located
No.2 end on all DM cars
Purpose of surge arrestor
Grounds surged of power from overhead and protects high voltage equipment
What do HSCB do
Disconnect traction equipment in event of over current, faults and short circuit
Does the traction control unit control application and release of holding brake?
Yes
What voltage does air compressor run on
400vAC
What does the 1500 pass through before it goes to the SIVS
High voltage container
If one static inverter goes out, what continues running
Everything, except air con runs at 50%
Battery charger supplies 110v to what equipment
Batteries
Comms
Lighting
Door system
Traction control equipment
EP braking control equipment
Safety loop
Other various control circuits and equipment
What do batteries supply power for
Backup power
Start up
Panto rise
What system do pantos use?
Electro-mechanical
Where does the power supply come from to raise pantos
Batteries
6 steps to raise pantos
1 Key in and on
2 check SPB applied
3 wait for all buzzers to stop, press panto up button (located on fault panel)
4 check line voltage is illuminated
5 check panto up button extinguished
6 visual check pantos up
2 ways to lower pantos
Stable button
Panto down button
Hiw long to press stable button
5 seconds
Can you use panto down button to stable?
No
Where is the panto crank handle located
DM car
Right of door 2
When manually raising/lowering pantos what CB should be tripped
Panto motor
If manually lowering pantos do you leave panto motor tripped and report to TC?
Yes
What type of doors are saloon doors?
Plug type bi-parting
Is each saloon door fitted with a door module
Yes, left of every doot
Is there a button in the door control module allowing you to open and close depending on saloon door position?
Yes
When does the DOOR OUT OF ORDER button illuminate and flash?
Illuminate = DCU defective
Flash = door system fail
If there is a saloon door obstruction, will the door re-open and close button on driver panel flash?
Yes
If saloon door obstructed, after hiw many y seconds will door attempt to close again. How many times does it do this
3 seconds 3 times
Saloon door auto close time
60 sec
When a DER is active what 4 things happen
DER light
FDCL
Audible tone
CCTV
What voltage does safety loop require to run
110v
What cannot be bypassed with safety loop
MEMES
Master key switche MCB
ESB
MC handle/ emg position
Safety loop MCB
What can be bypassed with safety loop
HOME-VBC
Coupler fail relay
Hand and foot (deadmans)
ESB non active cabs
Main res pressure relay
Overspeed relay
BCU major event relay
Vigilance system
Auto applications of emg brake (involuntary)
Delner or semi perm coupler fails (train divides)
Electrical coupler fails on 2x 3 cars
Over speed exceeded
BCU critical fault
MR below 600kpa
Trip activated
VICERS
Safety loop short circuit
Can master key switch put in off position cause emg brakes
Yes
How to reset emergency brake (safety loop)
Coast
5 steps to reset trip on cab startup
Key in and on
Trip light illuminated
Master selector to driving position
MC to coast
Emergency brake release and holding pressure apply
How to remove trip from safety loop during failure (6 steps)
Mc to b6
Neutral
Key off and out
Insert key into trip bypass
Remove key and reactivate cab
Mc to 0 to see if emergency brake releases
If unable to reset emergency brake when isolating trip, what else will need to be bypassed
Safety loop
What two things need to happen to put VICERS in suppression mode
0km
BC pressure above 76 (B3)
In vicers suppression mode, if controller is in B1 or B2, how many seconds will vigilance button flash after?
35 seconds
How to reset vicers (4)
0km
Mc = Coast
Wait 10 seconds
Push vicers button
Is vicers isolated automatically when trip or safety loop is bypassed?
Yes
Isolate vicers (4 steps)
Open CB panel
Insert key to vicers isolate
Turn to isolate
Report defect to TC
