Electrification of Urban Transportation

TSEA supplies high performance and quality systems and equipment to the railway market. Using advanced control and information techniques, the urban transport electrification projects implemented by TSEA in several countries result in a highly safe, efficient and sustainable operation.

References of projects built in South America


Sarmiento/Mitre – Buenos Aires

800 VDC Traction Systems (405 cars)


600 VDC Traction Systems (128 cars)

600 VDC Traction Substations (03)


25 kVAC Traction Substations (04)


IAFE Caracas

25 kAC Traction Systems

Auxiliary Inverters

Monitoring Systems

Air Conditioning (104 cars)



Air Conditioning (60 cars)



3 kVDC Traction Motors (100 cars)

34.5 kV Distribution Network

CBTU/EFS – São Paulo

3 kDC Traction Motors (196/30 cars)

RFFSA/CBTU – Rio de Janeiro

3 kVDC Rectifier Substations (17)

Salvador Metro

3 kDC Traction Systems

Auxiliary Inverters (24 cars)

São Paulo Metro – Line 1

750 VDC Traction Motors (156 cars)


3 kVDC Traction Systems

Auxiliary Inverters (480 cars)

Monitoring Systems (400 cars)

São Paulo Metro – Line 5

Primary Substation (01)

1.5 kVDC Rectifier substations (14)

Auxiliary Substations (14)

Rigid Catenary (~22 km)

Conventional Catenary (~18 km)

Escape Route Signaling System

Rio de Janeiro Metro – Line 4

Primary GIS Substation (01)

Auxiliary Substations (14)

São Paulo Metro – Line 6

Primary Substations (02)

Rectifier Substations (09)

Auxiliary Substations (18)

CPTM – Line 13

Rectifier Substations (03)

Sectioning Cabin (01)

Telecontrol System

34.5 kV Distribution Network

Rio de Janeiro Metro, Line 4


An important construction for the city of Rio de Janeiro, the Metro line 4 started operating in 2016 and was designed to transport more than 300 thousand people a day, removing from the streets about 2 thousand vehicles per hour/peak in each direction of the axis Barra da Tijuca-Zona Sul. The line has approximately 16 kilometers of tracks and 6 passenger stations.

TSEA implemented São Conrado Primary Substation and the 12 Auxiliary Substations responsible for power supplying to the new line and the various auxiliary equipment located in the Tunnels, Passenger Stations and Maintenance and Maneuvering Yards, with special emphasis on the gas insulation technology (GIS: Gas Insulated Switchgear) of São Conrado Primary Substation, ensuring economy, safety and reliability to the Metro operations.

Technical Characteristics
Number of Stations 6
Max Speed 80 km/h
Headway 4 min
Primary Energy Gas Insulated Switchgear (GIS)
138 kV / 22 kV / 90 MVA
Auxiliary Energy 440 / 220 / 127 Vca -
Between 112.5 and 750 kVA per substation

São Paulo Metro, Extension of Line 5


The project connects Largo Treze, in the neighborhood of Santo Amaro, to Chácara Klabin, totaling an extension of 19.9 km, 17 stations and 02 depots.

TSEA’s project is composed of 01 Primary High Voltage Substation, 14 4MW Rectifier Substations, 12 Low Voltage Auxiliary Substations, 11.5 km of 1500 VDC rigid catenaries, conventional catenaries, and also the Escape Route Signaling System. TSEA’s scope encompasses the development of the executive design, equipment supply, electromechanical assembly, factory tests, training, commissioning tests, spares and assisted operation.

With the commercial start-up of the Adolfo Pinheiro – Chácara Klabin section, Line 5 – Lilac has an estimated demand forecast of 781,300 passengers/day with 34 trains operating at peak hours.

Technical Characteristics
Number of Stations 11
Max Speed 80 km/h
Headway 2 min
Primary Energy 01 Isolated Air Substation (AIS)
138-88 kV / 22 kV / 100 MVA
Auxiliary Energy 12 Auxiliary Substations
460/220 Vac - Between 2000 and 4000 kVA per substation