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Class 233 > Xtrap Traction > Flashcards

Xtrap Traction Flashcards

1
Q

What are the 4 positions of the master control handle?

A

Power
Coast
Brake
Emergency brake

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2
Q

What are the 3 positions of the reverser?

A

Forward
Neutral
Reverse

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3
Q

What are the positions of the cab lighting?

A

0-off
Cab
Desk

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4
Q

What happens if the safety loop is bypassed?

A

NO SAFETY DEVICES will operate on the train

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5
Q

What are the 5 cocks in a box?

A

Whistle
Uncouple
Trip cock reset
Trip cock active
Auxiliary pneumatic panel

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6
Q

How many seconds does the mad button flash once active?

A

30 seconds

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7
Q

What are the positions of the safety loop bypass

A

Normal
Test
Bypass

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8
Q

Where is the pantograph located?

A

Number 2 end of the trailer car

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9
Q

What is the brake pipe pressure in normal running conditions?

A

0kpa

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10
Q

How much kpa will be in the brake pipe when fully charged for rescuing?

A

550 kpa

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11
Q

What are the 5 positions of the EMS switch?
(Emergency mode switch)

A

1 - online holding brake inhibit
2- normal
3- rescued
4- rescuing
5- rescuing in proplusion

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12
Q

What key is used for manually releasing the spring park brake?

A

AX key

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13
Q

What wheels are the spring park brakes located on?

A

1, 3 and 7 on motor cars only

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14
Q

What is emergency brake pressure?

A

210 kpa

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15
Q

What brakes come on in emergency?

A

Ep and ed in all cars

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16
Q

How much is brake holding pressure?

A

120 kpa

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17
Q

What speed does EP come on?

A

EP is used Between 5-10 km/h , the ED brake drops out completely at 5kmh

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18
Q

What speed does ED braking operate?

A

At speeds above 10kmh and works only on MC cars as it is provided by traction motors

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19
Q

What brakes do trailer cars have?

A

EP (friction) brakes only

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20
Q

What are the 4 braking systems used in xtrap trains?

A

Service (ep and Ed)
Holding brake (120kpa)
Emergency brake (210)
Spring park brake (mc cars only)

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21
Q

What pressure is seen in full service brake? (Or when the EMS has been turned to position 1)

A

190 kpa

22
Q

If compressed air falls below what KPA will both air compressors turn on ?
And when will 1 shut down again?

A

At 650 kpa both compressors will come into operation until compressed air reaches between 750-900kpa and then 1 will shut down while the other maintains that pressure

23
Q

What is the main reservoir safety valve set?

A

980 kpa

24
Q

Main reservoir pressure is between what?

A

750 kpa and 900 kpa

25
Q

What wheels are the 2 speed sensors mounted to?

A

Wheels 4 and 8

26
Q

After how many seconds will the PEI call time out if unanswered ?

A

After 90 seconds and then The driver will need to make a PA announcement to establish if there is a emergency

27
Q

How do you reset the VICERS system after it is activated?

A

Bring train to stand and wait 10 seconds
Master controller to coast
Observe emergency brake applied light
Push the vicers acknowledgment button

28
Q

Where are the internal emergency door release handles ?

A

Doors 2 and 5 on both motor and trailer cars

29
Q

Where are EXTERNAL emergency door release switches ?

A

Doors 1,2 5 and 6 on motor cars
Doors 2 and 5 trailer cars

30
Q

When the safety loop switch is in bypass, what safety devices do you have?

A

There are NO safety devices on the train.
Emergency brakes will apply when the switch springs back to normal

31
Q

How long will the battery last if there is a loss of overheads ?

A

Up to 1 hour as the battery is no longer being charged

32
Q

Why 2 things operate on 24v AC power?

A

Headlights (high beam)
CCTV cameras in passenger section

33
Q

What 3 things are connected to the Permanent Low voltage Line ?

A

Pantograph electric motor
Step lights
Fluorescent cab light

34
Q

What does the SIVS power?

A

Battery charger
Air compressors
Traction converter cooling fans
Hvacs
GPO in cab

35
Q

What equipment is on the motor car roof ?

A

HVACS
Resistor grids

36
Q

What equipment is on the trailer car roof? (4answers)

A

Pantograph
HVACS
lightning arrestor
2 high speed circuit breaker

37
Q

The tachometer must register a speed below 0.5km/h for what equipment to function ?
(4 answers)

A

Door release
Uncouple button
Trip reset
Safety loop reset

STUD

38
Q

Battery power must not be below what for the train to be able to function?

A

90 volts

39
Q

Each saloon door has a isolation switch,
Where is the switch located?

A

In the pelmet to the left of the door

40
Q

Where is the Trailer car circuit breaker panel located ?

A

To the left of door number 2 within the pelmet

41
Q

What are the circuit breakers in the trailer car panel to the left of door 2?
( 6 answers)

A

Tachy unit
BCU
Panto 2
Panto 1
AUX Inverter 2
AUX Inverter 1

42
Q

Each TP car has the ability to manually raise or lower the pantograph due to defects.
Where is this located?

A

In the pelmet To the right of the saloon door number 4

43
Q

The traction inverter converts 1500v DC to what?

A

Variable 3 phase AC to be used by the traction motors

44
Q

Are the static inverters on the motor or trailer car?

A

Trailer car

45
Q

What car are the air compressors on?

A

Trailer car

46
Q

What car is the traction control unit?

A

Motor car

47
Q

What car is the battery box on and which side can you access it from ?

A

Trailer car
A Side

48
Q

What is inside the Auxilliary container?

A

2 static inverters
Battery charger

49
Q

Tacho Bypass items

A

Doors release
Uncouple button
Safety loop reset (During rescue)
Trip

50
Q

MAD button time?

A

Tone every 30 Seconds

51
Q

How long must you be stationary to reset the trip?

A

5 seconds

Class 233 (6 decks)

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