Electrostar Traction Flashcards
M O S L
Meaning
Motor open standard lavatory
P T O S L
Pantograph trailer open standard lavatory
D M O S
Driver motor open standard
4 car
Dual
Retractable
375.6
377.5
Which class
3 car DC fixed
375-3
377-3
Which class
4 car. Dual voltage. Retractable shoes
375-6
377-5
4 car
DC
Fixed
375-7
377-1
377-3
375-3
Which class
4 car DC. Retractable +. Anti icing or high density seating
375-8
375-9
ACM
3 different voltages and what’s used for each
110dc. Batteries , emergency lighting , control feed
240ac. Janitor sockets , body side heaters.
415ac. HVAC. Compressor (local & remote)
DMOS drivers side
B B B M M B
Battery box
Brake frame
Brake control unit
Main circuit breaker
Motor converter module
Brake fan resistor
DMOS non drivers side
A B C D E L (f/all) backwards
(Sand hopper)
(Back of brake resistor fan)
Line converter module
Earthing switch shoe gear
Do not touch- electrical connector gap
Contactor box (dc equipment)
Back of battery box
Auxiliary converter module
M O S L.
Layout outside
Motor open standard lavatory
Non drivers side
Contacter box. line converter module (375-6 & 377-5 only)
Drivers side
Brake frame - brake control unit - main circuit breaker - motor converter module - brake fan resistor
Body end cupboards MCBs x 4
- Brake controls
- Mitrac
- Compressor local & remote (PTSOL only)
- Auxiliary compressor (PTSOL only)
376 name the 5 cars
DMOS /A, MOS/A, PTOS, MOS/B, DMOS/B
Name the current limit index
4 car= 5
Max amount of coaches= 12
Max current limit index= 16
If current limit index is exceeded
You are drawing to much power and tripping MCBs at substation, MDC will advise on any isolation of traction motors/ MITRAC
Can you couple 375 and 376
Yes but only for assistance, electrical and mechanical with restrictions (max 75mph)
How do you know that shoes have been lowered
The line light will illuminate
When you have wheel slide how will sand be dispersed
Automatically when in brake step 2 3 and 4
When would you raise shoe gear
Fire on PLU on train
Blowing substation breakers MCB
Damaged shoe gear
Which electrostar has no WC
376
Where are DSIC found in electrostars and which model differs and why
DSIC are found at the end of each coach in the body end cupboard
In 377 units with 1st class doors, the DSIC will be found in the drivers cab
Coach names for 375 and 377 4 car
DMOS/A
MOSL
PTOSL
DMOS/B
Coach names for 375 3 car
DMOS/A
PTOSL
DMOS/B
Where do you reset toilet smoke alarms in 377
Trip and reset toilet MCB in body end cupboard
Can networkers and electro stars be coupled together
Yes but need a schrader hose and a fitter with an adapter, mechanically only
Can all electrostars be coupled together
Yes but 375 and 376 cannot use SDO
Can be coupled mechanically and electrically but with restrictions
What happens when you press emergency plungers on a 377
Collector shoes will raise, press shoes down to rectify
When would you use a short circuit bar
1- anyone in contact or at risk of being in contact with the conductor rail
2- uncontrolled evacuation
3- fire arcing or smoke
4- other faults and failures
What is different about 377 tail lights
They have an automatic tail light switch
How do you access/ switch off on train cameras on a 377
Via Mitrac main settings
What happens if the emergency cupboard in a 377 is opened
You receive a yellow B fault on Mitrac
Which electrostars have SDO buttons
375s
377 and 375 can they be coupled
No due to different operating systems on Mitrac
Which side is BBBMMB
Driver’s side
What is the current index limit on a 4 car train
5
Which electrostars have no SDO function
377
