Traction - Siemens Underframe Flashcards

1
Q

How to reset the trip (3)

A

Train = 0kmh
Master Controller = 0 (coast)
Turn reset switch against spring and release

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2
Q

What does the towing unit do?

A

Reads and writes from BP when coupling unnalectrically.
Talks to BCU

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3
Q

When using the towing unit and in brake pipe mode what turns first, the key switch or selector?

A

Selector to desired number/rescue type, then key switch to turn on.

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4
Q

When in brake pipe mode, if the rescuing train has BP mode 3 selected, what should the rescue train have?

A

2.
Both trains must equal 5.

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5
Q

When in brake pipe READ mode what is brake step 0 pressure?

A

> 480kpa

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6
Q

When in brake pipe READ mode what is emergency pressure?

A

300

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7
Q

What does the towing cock do?

A

Chokes MR pressure when coupling with a comenge. Prevents overcharging as both MR pressures are different

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8
Q

When towing cock is in use, what does it lower MR pressure to? Does it change the whole train pressure as well?

A

Lowers to 700kpa only in cab it is turned in. Rest of train will continue at operating pressure 850-1000kpa

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9
Q

When the towing cock is being used, what light can sometimes flash as a result of the mismatched MR pressures on the train?

A

Uncouple light

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10
Q

When the towing cock is being used, what light can sometimes flash as a result of the mismatched MR pressures on the train?

A

Uncouple light

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11
Q

What does the manual valve (master cock) do?

A

Allows complete isolation of whole pneumatic system of the coupler

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12
Q

What does the manual valve EXTEND do?

A

Prevents coupler doors opening during coupling

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13
Q

What does manual valve RETRACT do?

A

Prevents doors from retracting during Uncoupling

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14
Q

Do driver use the electrical coupler handle?

A

No

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15
Q

Is the brake module used in EP braking?

A

Yes. Does not get used in ED.

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16
Q

Brake module locations

A

Wheels 3 and 7 per car

17
Q

Brake module functions (7 answers)

A

SEBWAP-C
Service braking
Emergency braking
Brake blending
Wheel slide control
Cleaning air supply to brakes
Park brake operation
Air suspension system

18
Q

What does sander iso cock do?

A

Isolates compressed air to sander box

19
Q

Where are sanders om motor cars?

A

3 and 6

20
Q

Where are sanders on trailer cars?

A

2, 3, 6, 7

21
Q

What do the SIVs convert 1500v DC into (3 answers)

A

400v AC (3 phase)
230v DC (single phase)
110v DC

22
Q

What 3 main things does 110v supply power to?

A

Charges batteries
Powers safety loop
Other safety critical functions

23
Q

What 3 things use battery to power

A

Pantos
Desk light
Step light

24
Q

How can pantos be raised

A

Electrically and mechanically