• Strong amongst German SMEs

    We stand for the values of owner-managed SMEs: reliability, responsibility, quality and adherence to deadlines.

    Georg Jester – General Manager
  • Green Energy Geothermie
  • Focus on our customers

    Professionalism and reliability are what our customers appreciate. And this has been so for over 30 years.

    Andreas Haaß – Head of I&C
  • HGÜ HVDC Offshore Sylwin
References   /  Engineering Services for Current Converters

Engineering Services for Current Converters

Location: worldwide

Services: Commissioning, Documentation, As-built status and data recording, Pre-project planning and tendering, Basic-engineering and pre-engineering, Detail engineering, Maintenance

Industry Branch/Type of Plant: Power plants, Industrial systems, Chemical plants

Task areas

  • Planning current converters, e.g. preparing diagrams and circuit diagrams
  • Test setups and carrying out tests in the engineering and final test area
  • Commissioning rectifiers, current converters, exciter systems, starters, protection circuitry (pre-commissioning, connecting to load, connecting to grid)
  • Grid synchronization
  • Global Mobility: Management of international fiscal and registrative requirements

Contract types

  • Contract staff/temporary personnel, service contract, works contract

Selected projects

  • Hydroelectric power plants: Rheinfelden (CH), Unteraa (CH), Merowe (SD), Bailianhe (CN)
  • Coal-fired power plants: Mazeikiu (LT), Maritza (BG)
  • Aluminum smelters: Isal (IS), Alba (BH)
  • Steel mills: Guofeng (CN), Angang (CN)
  • Rolling mill: Toranagallu (IN)
  • Oil production facility: Darquain (IR)
  • Graphite electrode plant: Selangor (MY)
  • Gas liquefaction plant: Bonny Island (NG)
  • Chemical plants: Everest (TH), São Paulo (BR), Beer Sheva (IL)
  • Traction current rectifier stations: Turgi (CH), Zurich (CH); gas compression plant: Haidach (AT)


  • ABB, Switzerland
  • Alstom, Switzerland
  • Bombardier Transportation, Switzerland 
  • Converteam, Germany, France 
  • Siemens, Germany


  • ABB                ACS, Unitrol, Megadrive LCI, PSR, Megatrol, AC 800 PEC
  • Alstom                 P320 AVR
  • BombardierTRAXX
  • ConverteamALSPA C80-HPC (LogidynD2)
  • Siemens        RG3-T4, Simadyn D/Simatic TDC with CFC

Points of contact

Harald Knaus Leiter Elektrotechnik

Harald Knaus

Head of Electrical Engineering

INP Deutschland GmbH

Werkstraße 5

67354 Römerberg


Tel. +49 6232 6869-0

More references

Now, you can discover even more exciting projects and references from the world of INP International Projects.

Competence: Rectifier and drive technology