Electrics Flashcards

1
Q

Where are the pantos located?

A

No 2 end motor cars

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2
Q

What does the HSCB do?

A

Disconnects traction equipment from the overhead in the event of over current supply, traction faults or short circuits

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3
Q

What do the traction motors do when there is a defect?

A

They self isolate

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4
Q

What do traction motors operate on?

A

Variable 3 phase AC

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5
Q

What do the SIVs power? BATH

A

Battery charger
Air compressor
Traction cooling fan
HVACs

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6
Q

What happens if one SIV fails?

A

BATH still works, air cons run at 50% capacity

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7
Q

What indication will you get for a SIV failure?

A

Maintenance fault and unit light
A SIV light will illuminate on the affect T car

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8
Q

Where is the Panto manual crank handle?

A

A side no2 end motor car right of door 2

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9
Q

Where are the door control modules? (DCU)

A

Left of every door

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10
Q

What voltage does the safety loop require?

A

110v DC

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11
Q

How do you reset the emergency brakes?

A

Stop train and Into coast/0

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12
Q

How do you test VICERS

A
  • stationary
  • can active
  • forward
  • in coast
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13
Q

What MR pressure does the safety loop break?

A

600 and below

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14
Q

When does VICERS isolate automatically?

A

When either the trip or safety loop is bypassed

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