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Traction Chain Type
We supply components for power control, cooling and measurement.
In this section, you can also find integrated systems that assemble several components into optimized functional units.
Data Collection System
Collect energy data from vehicles
Machine room blower
Ensure ventilation and fresh air
circulation in power cabinets
AC/DC Metering
Measure consumed and
regenerated DC energy
Braking resistor
Dissipate the exceeding
electrodynamic braking power
Braking Resistor fan
Provide forced ventilation
to braking resistors
Main DC circuit breaker
Protect electrical equipment
from short-circuit damages
Isolating Earthing switch
Ensure circuit isolation and
grounding for safe maintenance
Data Handling System
Manage Energy Billing Data (CEBD)
files for the ground-based
Data Collection System (DCS)
Heater contactor
Control heating resistors
Coach power supply contactor
Isolate coaches from the
primary power supply
Pre-charge contactor
Control the circuit
capacitors pre-charge
Line contactor
Isolate the railway vehicles
from the power supply
Pre-charge resistor
Limit the current
of pre-charge
Inverter Isolation
Isolate a failed inverter
to guarantee service continuity
Damping resistor
Damp the inductance voltage
and capacitor current
Discharge resistor
Limit the current during
filters discharge
Damping resistor
Damp the inductance voltage
and capacitor current
Isolating Earthing switch
Ensure circuit isolation and
grounding for safe maintenance
Capacitor discharge contactor
Discharge DC-link capacitors
via a parallel resistor
Motor Isolation Contactor
Isolate the motor and
protect the inverter
Traction Converter fan
Dissipate traction converter power
losses through forced ventilation
Battery charger output contactor
Isolate auxiliary batteries
from its charger
Battery charger input contactor
Isolate battery chargers from
the primary power supply
AUX output contactors
Isolate auxiliary loads
from the auxiliary inverter
AUX input contactor
Isolate auxiliary inverters
from the DC-link
Traction motor blower
Dissipate traction motor power
losses through forced ventilation
Protection Relays
Circuit Breakers
Switches and Disconnectors
Fans
Resistors