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MT Trainee > Traction Siemens - Electrics > Flashcards

Traction Siemens - Electrics Flashcards

1
Q

Where are pantos located

A

No.2 end on all DM cars

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2
Q

Purpose of surge arrestor

A

Grounds surged of power from overhead and protects high voltage equipment

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3
Q

What do HSCB do

A

Disconnect traction equipment in event of over current, faults and short circuit

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4
Q

Does the traction control unit control application and release of holding brake?

A

Yes

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5
Q

What voltage does air compressor run on

A

400vAC

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6
Q

What does the 1500 pass through before it goes to the SIVS

A

High voltage container

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7
Q

If one static inverter goes out, what continues running

A

Everything, except air con runs at 50%

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8
Q

Battery charger supplies 110v to what equipment

A

Batteries
Comms
Lighting
Door system
Traction control equipment
EP braking control equipment
Safety loop
Other various control circuits and equipment

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9
Q

What do batteries supply power for

A

Backup power
Start up
Panto rise

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10
Q

What system do pantos use?

A

Electro-mechanical

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11
Q

Where does the power supply come from to raise pantos

A

Batteries

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12
Q

6 steps to raise pantos

A

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

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13
Q

2 ways to lower pantos

A

Stable button
Panto down button

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14
Q

Hiw long to press stable button

A

5 seconds

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15
Q

Can you use panto down button to stable?

A

No

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16
Q

Where is the panto crank handle located

A

DM car
Right of door 2

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17
Q

When manually raising/lowering pantos what CB should be tripped

A

Panto motor

18
Q

If manually lowering pantos do you leave panto motor tripped and report to TC?

A

Yes

19
Q

What type of doors are saloon doors?

A

Plug type bi-parting

20
Q

Is each saloon door fitted with a door module

A

Yes, left of every doot

21
Q

Is there a button in the door control module allowing you to open and close depending on saloon door position?

A

Yes

22
Q

When does the DOOR OUT OF ORDER button illuminate and flash?

A

Illuminate = DCU defective
Flash = door system fail

23
Q

If there is a saloon door obstruction, will the door re-open and close button on driver panel flash?

A

Yes

24
Q

If saloon door obstructed, after hiw many y seconds will door attempt to close again. How many times does it do this

A

3 seconds 3 times

25
Q

Saloon door auto close time

A

60 sec

26
Q

When a DER is active what 4 things happen

A

DER light
FDCL
Audible tone
CCTV

27
Q

What voltage does safety loop require to run

A

110v

28
Q

What cannot be bypassed with safety loop

A

MEMES
Master key switche MCB
ESB
MC handle/ emg position
Safety loop MCB

29
Q

What can be bypassed with safety loop

A

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

30
Q

Auto applications of emg brake (involuntary)

A

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

31
Q

Can master key switch put in off position cause emg brakes

A

Yes

32
Q

How to reset emergency brake (safety loop)

A

Coast

33
Q

5 steps to reset trip on cab startup

A

Key in and on
Trip light illuminated
Master selector to driving position
MC to coast
Emergency brake release and holding pressure apply

34
Q

How to remove trip from safety loop during failure (6 steps)

A

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

35
Q

If unable to reset emergency brake when isolating trip, what else will need to be bypassed

A

Safety loop

36
Q

What two things need to happen to put VICERS in suppression mode

A

0km
BC pressure above 76 (B3)

37
Q

In vicers suppression mode, if controller is in B1 or B2, how many seconds will vigilance button flash after?

A

35 seconds

38
Q

How to reset vicers (4)

A

0km
Mc = Coast
Wait 10 seconds
Push vicers button

39
Q

Is vicers isolated automatically when trip or safety loop is bypassed?

A

Yes

40
Q

Isolate vicers (4 steps)

A

Open CB panel
Insert key to vicers isolate
Turn to isolate
Report defect to TC

MT Trainee (45 decks)

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