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MT Trainee > Traction Xtrap - Train Electrics > Flashcards

Traction Xtrap - Train Electrics Flashcards

1
Q

What equipment is part of the high voltage circuit? (7 answers)

A

Panto
Lightening arrestor
2x HSCB
Line inductors
Traction inverter
Rheostat brake resister grids
Auxiliary inverter (SIV)

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2
Q

How is the pantograph raised?

A

Electrically with master key in and on, provided that 110v DC Permanent Line Voltage is present from charged batteries

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3
Q

What power does the traction inverter receive and output

A

Receive- 1500vDC
Output - variable AC (to the Traction motors). Amount of power is dependent on MC handle.

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4
Q

What does the TCU do?

A

Tells how much power to send to Traction motors using 1500 coming in

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5
Q

What is the low voltage circuit? (6 answers)

A
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6
Q

What os on the auxiliary container?

A

2x SIV
1x Battery charger

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7
Q

What do SIVS supply power to?

A

BATHG
110v

400/220v AC
110v DC
Air compressors
Air Conditioners
Battery charger
Traction converter cooling fan

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8
Q

What voltage system does the battery backup provide power for?

A

110v DC system

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9
Q

Auxiliary 400/220v AC system equipment?

A

BATHG
Battery charger (400)
Air compressors (400)
HVAC (400)
Traction converter cooling fan (400)
GPO (220)

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10
Q

HVAC units are provided with what power? (2 answers)

A

400v AC for primary power
110v DC for control circuit power

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11
Q

If one SIV fails, the remaining SIV will power what?

A

No.1 air con
No.1 air comp
Full saloon lighting
Both Traction cooling fans
Battery charger

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12
Q

What are the 3 different distribution lines of 110v DC

A

-Permanent line voltage
-Prepared low voltage
-Prepared low voltage and cav operative line

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13
Q

Permanent line voltage is connected to what, and supplies electrical connection to what 3 things?

A

Connected to the batteries

Panto electric motor
Step lights
Fluoro cab light

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14
Q

Prepared low voltage and cab operative energises what 110v equipment?

A
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15
Q

Prepared low voltage - when key has been removed the train enters retention mode and what occurs? 5 answers

A
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16
Q

What side is the battery isolation switch and fuse located on and what type of car?

A

A side trailer car

17
Q

How long do the batteries power the train after loss of overhead?

A

1 hour

18
Q

If the safety loop de-enegises, what happens (4)

A

Emergency brake applies
Data logger
Inhibition of electrical braking and traction (friction only applies)
Emergency brake fault light illuminate

19
Q

What can activate the emergency brake? (5)

A

MR below 580
BP below 300 (during train rescue)
Loss of 110
2 or more controller keys inserted
23Q1 and/or 23Q2 breakers trip

20
Q

How to reset the trip (4 answers)

A

Train speed under 0.5km
Stationary for 5 seconds
Trip cock device to reset and release
Trip activated light will extinguish

21
Q

How many seconds does train have to be stationary for Trip to reset

A

5 seconds

22
Q

When being rescued by another xtrap, what switch must be turned In main circuit breaker panel?

A

Safety loop 110v supply switch

23
Q

Where are the electric door motors located?

A

Left of every saloon door

24
Q

After releasing saloon doors, how long do they stay open before closing automatically?

A

1 minute

25
Q

When assisting a special needs passenger, how long and what doors does the service retention allow?

A

10 minutes
1, 2, 5, 6 on leading motor

26
Q

With the door secondary release feature, how long will saloon doors attempt to close

A

4 time at 3 second intervals

27
Q

If after all attempts at closing door, how long will beeping tone last on secondary release feature?

A

60 seconds

28
Q

What doors are the manual release INTERNAL DERs on?

A

2 and 5 of all cars

29
Q

If a DER is activated mid running, can a train still get traction power?

A

Yes

30
Q

When does emergency lighting become operative after batter charger fails?

A

1 minute

31
Q

Hiw many seconds does train have to be stationary to reset VICERS?

A

10 seconds

32
Q

What are the two positions of the safety loop 110v supply switch

A

Normal
Rescue

33
Q

What voltage do highbeam headlights use?

A

24vAC

34
Q

What volts does traction cooling fan use?

A

400v AC

35
Q

Are doors connected to safety loop?

A

No, doors have door loop bypass. Not connected to safety loop

MT Trainee (45 decks)

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