Traction Chain Type

1

Data Collection System
Collect energy data from vehicles

2

Roof Disconnector​
Isolate the roof line
from the power source

3

Machine Room Blower
Ensure ventilation and
fresh air circulation
in power cabinets

4

Roof Disconnector​
Isolate the roof line
from the power source

5

AC/DC Metering
Measure consumed and
regenerated DC energy

6

Braking Resistor​
Dissipate the exceeding
electrodynamic braking power

7

Braking Resistor Fan
Provide forced ventilation
to braking resistors

8

Main Dc Circuit Breaker
Protect electrical equipment
from short-circuit damages

9

Isolating Earthing switch
Ensure circuit isolation and
grounding for safe maintenance

10

Data Handling System
Manage Energy Billing Data
(CEBD) files for the ground-based
Data Collection System (DCS)

11

Isolating Earthing switch
Ensure circuit isolation and
grounding for safe maintenance

12

Traction Transformer Blower
Provide oil cooling and/or
forced ventilation to transformers

13

Multisystem Vehicle Configurator (TAP)
Configure the secondary basing on the catenary voltage

14

Precharge Resistor
Limit the current of pre-charge

15

Line Contactor
Isolate the railway vehicles
from the power supply

16

Precharge Contactor
Control the circuit
capacitors precharge

17

Motor isolation contactor (AC/DC)
Isolate the motor and protect the inverter

18

Discharge Resistor
Limit the current during
filters discharge

19

Coach Power Supply Contactor
Isolate coaches from the primary power supply

20

Heater Contactor
Control heating resistors

21

Traction Converter fan
Dissipate traction converter
power losses through
forced ventilation

22

Multisystem vehicle configurator (2F)
Allow to configure the secondary
based on the catenary voltage

23

Isolating Earthing Switch
Ensure circuit isolation and
grounding for safe maintenance

24

Traction Converter Fan
Dissipate traction converter
power losses through
forced ventilation

25

Motor Isolation Contactor
Isolate the motor and
protect the inverter

26

Battery Charger Output Contactor
Isolate auxiliary batteries from its charger

27

Battery Charger Input Contactor
Isolate battery chargers from
the primary power supply

28

AUX Output Contactor
Isolate auxiliary loads
from the auxiliary inverter

29

AUX Input Contactor
Isolate auxiliary inverters
from the DC-link

30

Traction Motor Blower
Dissipate traction motor
power losses through
forced ventilation