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XTrap Fault Lights > Electrical Faults > Flashcards

Electrical Faults Flashcards

1
Q

What do you advise passengers when there is loss of overhead power?

A

Period of delay

Any transfer to other train

Detraining arrangements

Any other arrangements

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2
Q

How long does battery power last?

A

60 mins

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3
Q

What do you do to conserve energy when there is loss of overhead?

A

Reverser NEUTRAL

Key to OFF

Headlights OFF

Daylight - cab lighting OFF

Daylight - saloon lighting EMERGENCY

ensure step lights OFF by closing cab doors

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4
Q

What are the 3 CB faults?

A

MAJOR FAULT

MAJOR 2nd level fault

MINOR FAULT

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5
Q

What is 24 V converter fault?

A

One or more has failed

If all 3 on unit lost - all 24v equip on that unit lost

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6
Q

What does Low Pressure MR fault light mean?

A

MR has fallen below 650kPa

Train will fail when it falls to 580kPa

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7
Q

What does Traction Fault light mean?

A

Traction Equip failed on this car

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8
Q

What are the different voltages XTrap train use?

A

DC - 1500, 110, 24

AC - 400, 220, 24

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9
Q

What is Safety Loop Negative power supply?

A

23Q2

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10
Q

What is Safety Loop Positive power supply?

A

23Q1

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11
Q

What is Multi-unit relay

A

22Q6

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12
Q

What is BCU - low pressure in BP or service break CB?

A

25Q1

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13
Q

What are the CBS in trailer saloon?

Where are they located?

A

To the left of door 2:

Tachy Unit
BCU
Panto 2
Panto 1
Aux. Inverter 2
Aux. inverter 1

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14
Q

How many times can you attemp to reset an electrical fault/circuit breaker?

A

3

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15
Q

What faults can be rectified by train stable? (13)

A

Air compressor
Battery charger
CCTV
DDU
DTRS
Failed Traction test
HVAC
PA
Safety Loop
Service brake (EP)
SIV
Speedo/Tacho
Traction

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16
Q

If you have to stable on the mainline what do you have to do?

A

TEC call
PA
Close doors
Press Train Stable
Ensure HIGH VOLTAGE presence light extinguished
Wait 5 secs when Panto Down light illuminates
Remove key
Confirm Pantos lowered
Wait 2 mins
Test fault has cleared
Book FMP

17
Q

When an XTrap is stabled how long will emergency saloon and marker lights remain illuminated for?

A

15 minutes

Saloon doors will remain locked

18
Q

If step light is not illuminated what might be the cause? (4)

A

Defective

Storage batteries flat

Batteries isolated

Battery box fuse blown or missing

19
Q

If you have lost overhead do you still have HVAC?

A

No.

20
Q

What conditions should be met to perform a Train Stable on the Mainline?

A

At a platform

Under protection of Home signals

Not activating LVLX

XTrap Fault Lights (8 decks)

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