Made in Germany

THE BEST EXPERIENCE WITH TRANSFORMERS FOR INDUSTRIAL APPLICATIONS

Transformers – made in Germany
For every requirement. For every industry.

Our complete package of commitment, quality, flexibility and speed is impressive. Our services and products – Made in Germany – are recommended across the globe.

Oil-immersed transformers

We produce high-performance transformers in the range of 3.5 MVA up to 20 MVA for various applications. Depending on the customers’ requirements or specifications, a wide range of insulating oils can be used.

Depending on specifications, our oil-immersed transformers are supplied with a corrugated tank or a radiator tank – hermetically closed or with an expansion tank and the necessary accessories, from Buchholz relay to a thermal image. 

Oil-immersed transformers

Oil-immersed power transformers

  • 3.5 – 20 MVA
  • UM up to 52 kV Voltage
  • Conducting material copper or aluminium
  • Depending on design size: corrugated or radiator tank
  • On request cable cover hoods over HV or / and LV coils
  • Various accessories according to specifications / enquiry

Oil-immersed converter transformers

  • 3.5 – 20 MVA
  • UM up to 52 kV Voltage
  • Conducting material copper or aluminium
  • Depending on design size: corrugated or radiator tank
  • On request cable cover hoods above HV 
    und / or US connections
  • Various accessories according to specifications / enquiry
  • For 6-pulse inverter operation
  • As double-storey transformers for 12 or 24-pulse inverter operation
  • As triple-storey transformers for 18-pulse inverter operation
  • Step-up / step-down transformers
  • Transformers for voltage sequencing control units

Oil-immersed special transformers

Regulating transformers

  • With on load tap changer (OLTC) for grid adjustment or to regulate low voltage (primary control)
  • With no load tap changer (NLTC) on LV-side to regulate the low voltage in load-free state

Starting transformers

  • For low and high-voltage motors for reduction of the grid load during the starting process

Testing transformers

  • Up to 120 kV
  • Up to 180 kA eff. short-time operation
  • For one and three-phase high-voltage or high-current test fields
Sales Letter

HTT-Oil-immersed transfomers – All advantages in our factsheet – download here:

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Personally responsible

You have one contact partner that deploys all resources at HTT for you and is very familiar with your requirements and specifications.

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Custom fitted

Thanks to an in-depth understanding of your requirements, we are able to deliver products in the precise output level you require. And we also surprise you with added value.

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Straight to target

From your enquiry through to the submission of our bid, the engineering work and delivery – you will be astounded by our speed. Our recipe for success is to deliver great results much faster than expected!

Request offer now

Or contact us. We will be happy to advise you personally.

Stefan Baldus
Phone +49 5541 7008-50
stefan.baldus@htt-trafo.de

Stefan Baldus

Service & accessories

Regardless of the sector you work in or how specific your needs, at HTT you profit from fast response times and made-to-measure solutions. We have matching accessories and high-quality spare parts for each of our products.

Service & accessories

Certified quality

None of our components enter the next production stage without being tested first. Reputed external test and certification institutes also audit us at regular intervals. Our transformers can also be supplied with a GOST certificate on request. 

 

We manufacture in line with the requirements of the certificate ISO 9001 and the respective applicable norms (for instance, the Ecodesign Directive 2009/125/EC, (EU)No.548/2014/EC – DIN EN 50588-1). Our cast resins transformers also satisfy the requirements of the fire, climate and ambient classes.

 

Thanks to our decades of experience with customers in the offshore sector, we can also implement the requirements of the various classification companies.

Made in Germany

Our transformers are only designed and manufactured by our own highly qualified specialists at our site in central Germany. Thanks to the necessary know-how, years of experience and attention to detail, we are passionate about producing reliable and durable products.

Reputed customers

Long-standing loyal customers rely on the quality of HTT transformers and their experience with our company. During the course of supplier audits, they evaluate our performance capability, delivery punctuality and quality and always give us top grades.

Transparent production

Be our guest at a meeting or works inspection, we will be happy to take you on a tour of our production plant.

Our portfolio

  • Cast resin transformers
  • Oil-immersed transformers
  • Starting transformers
  • Testing transformers
  • Reactors
  • Special transformers and regulating transformers