Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Metro157 > Siemens - Electrics > Flashcards

Siemens - Electrics Flashcards

1
Q

What is the function of a surge arrester?

A

Protects the train from overhead faults

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the purpose of a high speed circuit breaker?

A

Protects overhead equipment from the train

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What can a maintenance fault light and either Unit 1 or Unit 2 illuminated mean in the drivers cab?

A

That it could be a Static inverter is defective
Unit 1 means the trailer car on your 3 car set
Unit 2 means the trailer car on the rear 3 car set

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

When the maintenance fault and unit 1 or 2 is illuminated, what is the drivers duty?

A

To go to the trailer car affected and check the fault panel to identify if it is a static inverter or not

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What circuit breakers activate the emergency brake?

A 
Safety loop
Auto coupler
Friction brake and monitoring 
Emergency brake valves
Cab manned

Door control train lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When does the safety loop open?

A 
Main res below 600KPA
Critical fault in brake control unit
Coupler fails
Over speed
Vicers
Trip
Emergency stop button
Master controller in emergency
Dead mans switch
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the main components of the vigilance system?

A

Button
Buzzer
Indicator light
VAR - Vigilance activation relay for

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

How is the safety loop energised?

A

Battery charger which energises the safety loop

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the Batteries used for on a Siemens?

A

Train start up and loss of overhead

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is each saloon door fitted with?

A

Door control module and a triangle key isolating switch to isolate that door

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is a D.E.R?

A

Door emergency release located to the left hand side of every door

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

At what speed can a D.E.R be operated?

A

Any speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What happens when the D.E.R is operated?

A

Der indicator in the active cab will illuminate and an audible buzzer will sound, PEI will activate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How do you reset the emergency brake?

A

Placed into 0 after the train becomes stationary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What happens when a PEI is activated?

A

When a passenger operates a PEI anywhere on the cab a warning tone will sound in the active driving cave and the emergency intercom button will flash

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What happens when the driver presses the emergency intercom button?

A

DDU will activate and the cctv to view the area

17
Q

What happens when a DDA button is pushed in the saloon area?

A

DDR button on the audio panel will flash five times and stay illuminated until cancelled

18
Q

What is the function of the vicers activation relay?

A

It applies the emergency brake if the vicers times out

19
Q

How do you reset the vicers?

A

Allow the train to come to a stand
Put master controller to 0
Leave it in coast for 10 seconds
Press vicers acknowledgement button

20
Q

What happens if you can’t reset the trip?

A

Isolate the trip key switch

21
Q

When should we isolate the vicers key switch?

A

The fault indicator remains illuminated

Fault that cannot be reset and train is held

22
Q

What is run off 400vdc?

A

Battery charger
Air compressor
Traction control module
HVAC

GPO outlets

23
Q

When by passing the trip or safety loop via key switch, what button must be pressed at regular intervals when flashing?

A

Mad button

24
Q

How do you do a vicers test?

A 
Reverser in forward
Trip down
Press vicers button
Look for a reduction in brake pipe
Vicers acknowledgement flashes and fault lights come on and off
25
Q

When safety loop is bypassed, what equipment is not working?

A 
Deadman’s devices
Over speed relay
Main res pressure relay
BCU major event relay
Coupler fault relay
Holding brake relay
26
Q

How does the electricity get supplied to the traction motors?

A

Overheads provide 1500vdc to the traction container converting 1500vdc into 3 phase variable AC

27
Q

How does electric get supplied and converted to the SIVS?

A 
1500vdc is supplied directly to the SIVS which is converted into 400vac
This then supplied power to the battery charger, air compressor, traction control module and HVACS
28
Q

Name what’s in the high voltage container?

A

2 high speed circuit breakers and a grounding switch

29
Q

Name the roof mounted equipment on a M car

A

Panto
Antenna
Surge arrestor
HVAC

30
Q

What voltages do the SIVS produce?

A

110v DC by way of battery charger
400v AC
240v AC

Metro157 (81 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions