Traction - Siemens Flashcards

1
Q

What equipment is mounted on the roof of a Siemens motor car?

A

Pantographs (2 end)
Antenna (1 end)
Surge arrestor (2 end)
2 HVACs

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2
Q

What equipment is mounted to the roof of a Siemens trailer car?

A

2 HVACs

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3
Q

What are the different motor car types for a Siemens consist?
How are they identified?

A

DMA = PA circuit breaker
DMB = CCTV circuit breaker

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4
Q

What equipment is in the traction container?
What functions do they perform?

A

Traction inverter:
- converts 1500vDC to variable 3 phase AC for traction motors
Traction control unit:
- processes inputs from master controller and powers motors accordingly, controls holding brake

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5
Q

What is in the high voltage container?

A

Right hand side:
- HSCB, grounds switch (M car)
- auxiliary equipment (T car)
Left hand side:
- brake control unit

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6
Q

What does the static inverter do on a Siemens?

A

Converts 1500v DC to:
- 400v AC (3 phase)
- 230v AC (single phase)
- 110v DC (battery, safety loop)

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7
Q

What is the purpose of the self excite button?

A

Manually starts the SIV in the event of low battery supply

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8
Q

What are the positions of the master selector switch?

A

Reverse
Neutral (stopped at signal, cab unattended/deactivation)
Forward
Set speed (6km/h)

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9
Q

How is the cab made active in a Siemens?

A
  • Key in master key switch
  • turn key to “on” position
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10
Q

What are the operating zones on a Siemens master controller?

A

Emergency brake (B7)
Brake (B1-B6)
0 (coast)
Drive (D1-D7)

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11
Q

What are the brake cylinder pressures for each level of braking?

A

Holding brake = 110 kPa
B1 = 57 kPa
B2 = 83 kPa
B3 = 109 kPa
B4 = 136 kPa
B5 = 162 kPa
B6 = 189 kPa
Emergency/B7 = 280 kPa

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12
Q

Where is the trailer car fault and MCB panel located?

A

To the right of door 2

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13
Q

What are the positions of the brake pipe mode key switch?

A

0 - normal train operation
1 - pushed by other train
2 - pulling other train
3 - pulled by other train
4 - pushing other train

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14
Q

At what main res pressure will the emergency brake apply?

A

<600 kPa

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15
Q

At what main red pressure will the park brakes apply?

A

<350 kPa

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16
Q

What is the main res operating pressure for a Siemens?

A

850 - 1000 kPa

17
Q

What happens when the main res pressure falls below the operating range on a Siemens?

A

Below 850 kPa, uncouple button will flash

18
Q

What are the safety valve release pressures on a Siemens?

A

Air dryer/main res = 1050 kPa
Air dryer/compressor = 1100 kPa

19
Q

What are the 3 bypass switches in the MCB panel?

A

Door loop bypass
Safety loop bypass
Trip bypass

20
Q

What happens when one SIV fails?

A

All equipment stays running, but only running at 50% max capacity

21
Q

Where is the manual Panto crank handle located?

A

Second panel to the right of door 2, in a motor car

22
Q

What are the 5 circuit breakers that cause the emergency brake to apply?

A

Friction brake & monitoring
Automatic coupler control
Cab/Train manned
Emergency brake valve
Safety loop (lead)

23
Q

Which fault lights indicate a train line fault?

A

Safety loop
Critical defect
Maintenance fault
Reduced performance
Door system
Compressor fault