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Oil Type Traction Transformer

This series transformer adopts DuPont NOMEX insulation system which can well meet the railway department's performance requirements of safety and reliability, low loss, energy saving and environmental protection for station traction transformer.
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Applicable Scenarios

Frequent short-circuit tripping of secondary load.

Transformers are often subjected to overvoltage surges from operations.

Extremely unbalanced load, with occasional short-term high overloads and long periods of no-load or light load.

High voltage fluctuation steepness, particularly in remote substation bus voltages, with no-load voltages exceeding 29kV and heavy load voltage drops below 24kV.

Single-phase load.



Specific Design for Railway

Low loss and high energy efficiency, significantly reducing production costs.

Low loss, low temperature rise, strong overload capacity, enhancing capacity utilization, and saving costs.

No power interruption and less maintenance, providing safety and reliability.  



Types of Traction Transformers

1.    110kV and 220kV Single-Phase Traction Transformers: Used for AT (autotransformer) power supply and direct supply.

2.    110kV and 220kV Connection Traction Transformers: Used for AT power supply and direct supply.

3.    110kV and 220kV Balancing Traction Transformers: Used for direct supply.

4.    Autotransformers: Used for AT power supply.


220kV Traction Feeder 1

220kV Traction Feeder 2

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