AQ Trafo AB

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Inductive Components for Railway Applications

AQ Trafo started as a spin-out from ABB and has a vast experience of design and manufacturing of inductive components for railway applications including, rolling stock and fixed installations. Since the company was founded in 1994 we have expanded our presence to design and/or production facilities in Sweden, Bulgaria, Italy, China and India.

Railway Transformers and Inductors

Our transformers and inductors are used in many critical and demanding applications for High Speed Trains, EMUs, Metros and Trams inside main converters, auxiliary converters and electric cabinet assemblies. They are mounted on the roof, under the train, inside converter enclosures, in electric cabinets or on PCBs. The products range from 1VA to 2MVA with a system voltage up to 3 kV.

Our product range includes:

  • Line filter inductors
  • Harmonics filter inductors
  • 3-phase filter inductors
  • HF inductors
  • Mono and 3-phase transformers
  • Transformers with integrated inductor
  • HF transformers
  • Air coils
  • Natural air / Forced air cooling / Water cooled

Our focus is customized development and manufacturing of products for demanding customers and applications. We offer a number of advanced services including feasibility studies, CAD design, FE electrical and mechanical analysis and tests according to main EN/IEC standards. Our cost effective production in Bulgaria, China and India are located in the regions where our customers have their business. Regional sales, development, support and production continues to be an objective for AQ Trafo.

IRIS Certification and Welding

AQ Trafo is committed to quality and we continuously adapt to new requirements in the railway market. Our factories in Bulgaria and China are IRIS certified. They are also certified against EN ISO 15085-2 for welding of railway vehicle parts.

We are reliable

Thanks to our experience, high quality products and global presence we are able to meet demanding customers’ expectations.

If you have any questions please do not hesitate to contact us and we will try and help you in any way we can.

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AQ Trafo AB Images

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3.phase ACM transformer with integrated inductor

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Air-core DC Line filter inductor

3-phase-transformer-for-aux-converter_1

3-phase transformer for Aux. Converter

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Contact AQ Trafo AB

Use the form opposite to get in touch with AQ Trafo AB directly to discuss any requirements you might have.






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