04 - Train Electrics

Question 1

The High Voltage Circuit equipment consist of what?

Answer 1

Panto

Lightning arrestor

High speed circuit breaker

Traction converter

Auxiliary Inverter

Question 2

What end is the Panto located?

Answer 2

Number 2 end

Question 3

The panto electrically raised so long as?

Answer 3

There is 110v DC in the permanent line voltage is present

Question 4

Traction motors run on what power?

Answer 4

3 phase variable AC

Question 5

The traction converter gets how much power? And then does?

Answer 5

Gets 1500V DC Then converts to 3 phase variable AC.

The amount of power given to the traction motors depends on how much power is required by the Master Controller, weight of train, gradient etc. The Traction control unit computes

Question 6

What is the TCU?

Answer 6

The Traction Control Unit, inside the Traction Controller. It controls voltage into the traction motors, power supplied depends on how much the train is powering or Rheo/ED braking.

Question 7

What switch can a driver view on the traction motor?

Answer 7

The High Voltage Power Supply Switch. Drivers are able to view, but do not have access to control the switch

Question 8

Where is the Auxiliary Inverter mounted and what is contained in it?

Answer 8

It is on the underframe of the trailer car and contains 2 static inverters (SIV’s) and the Battery charger.

Question 9

What do the SIV’s do?

Answer 9

SIV’s convert 1500V DC from the TC to 400V AC and powers the Battery charger.

Question 10

What does the Battery charger do?

Answer 10

The Battery charger provides constant charge to the batteries.

The battery charger provides 110v DC power to the low voltage systems.

Question 11

What are the major components connected to the 400V AC systems?

Answer 11

BATH
Battery charger
Air Compressors
Traction Converter Cooling Fans
HVACS (Heating Ventilation and Air Cooling)

Question 12

What is connected to the 220V AC system?

Answer 12

General Purpose Outlet

Question 13

What happens when only 1 SIV is functioning?

Answer 13

If one SIV fails, the remaiuning SIV will supply power
BATH
Battery Charger (Full)
Air Compressor, Only 1
Traction Converter Cooling fan
HVACs, Only 1

Question 14

The HVAC units are provided with how much power?

Answer 14

400v AC for Primary Power

110v DC control Circuit Power

Question 15

What are the 3 distribution Lines?

Answer 15

Permanent Low Voltage Line
Prepared Low Voltate Line
Prepared Low Voltage and Cab Operative Line.

Question 16

What equipment is connected to the Permanent Low Voltage line(PLV)?

Answer 16

Pantograph Electric Motor
Step Lights
Fluorescent Cab Light

Question 17

Prepared Low Voltage and Cab Operative, name the important 110v DC equipment that is operation.

Answer 17

Safety Loop, just remember that.

There are lots more though.

Question 18

What equipment is powered by 24V AC power?

Answer 18

HEadlights (Highbeams)
CCTV cameras in Passenger Saloon (The TVS)

Question 19

Where does the Permanent Low Voltage line draw power from?

Answer 19

The battery, which the Battery charger in the Auxiliary Inverter charges.

Question 20

An Emergency Brake application will occur under what circustances?

Answer 20

• Main Res prssure falls below 580kPa
• Brake Pipe pressuire falls below 300kPa (during rescues)
• When the trip is activated or raised
• When the hand or foot pilot valve are not set
• When the Emergency Auto Vigilance Device button is not pressed on time.
• Activation of the VICERS system
• When a loss of 100V DC supply occurs (Safety loop de-energises)
• When the Master Contro0ller Handle is placed into Emergency in the manned cab
• The ESB is pressed in ANY cab
• When two or more controller keys are inserted and turned.
• 23Q1 or 23Q2 trips.

Question 21

What must be done to reset the Trip?

Answer 21

1. Train speed must be below 0.5km/h.
2. Trian must be stationary for minimum 5 seconds.
3. Place the trip cock device to RESET and release.
4. Trip activated light will extinguish when reset.

Question 22

Which circcuit breakers protect the Safety Loop circuit?

Answer 22

23Q1 and 23Q2

Question 23

The DCU emites a tone in the Saloon for how long?

Answer 23

1.5 seconds.

Question 24

How long will a Saloon door remain open if a Driver does not press the close doors button?

Answer 24

1 minute.

Question 25

When the Driver has to assist a passenger with special needs, the service retion feature allows which doors to open longer, and how long?

Answer 25

Doors 1,2,5 & 6 on the leading motor.

They remain open for 10 minutes.

Question 26

When something obstructs the saloon doors, how many times will they attempt to shut and at what intervals?

Answer 26

The doors will attempt to shut 4 times at 3 second intervals.

Question 27

Which doors does the external release operatre?

Answer 27

Door 1,,2,5 and 6 oan the motors
Doors 2 and 5 on the trailers.

Question 28

At which doors are the Door Emergency Release (DER) located?

Answer 28

Doors 2 and 5.

Question 29

How will the driver know if a DER is activated?

Answer 29

The Doors close (blue) light will flash

The ANSR (red) LED on the DDU will flash

The DOOR EMY HANDLE ACTIVATED status light will illuminate

An Audible Tone

Question 30

What canthe Saloon Lighting selector be switched to?

Answer 30

1 - Normal full saloon lighting on both sides of the car.

1/2 - Reduiced to emergency lighting on one side of the car and normal saloon lights on the other side of the car.

0 - Emergency lighting with one saloon light illuminated above each door.

Question 31

How much power runs to the VM40 event recorder?

Answer 31

110v DC

Question 32

The Speed Threshold Train Line is used by what functions?

Answer 32

DUCT
Doors

Uncouple,

Charge the brake pipe presssure during a rescue

Trip, resetting the trip