KOOPMANN Gruppe

As one of the leading service providers for energy and electrical engineering, we ensure the safe and trouble-free operation of our customers' energy and electrical systems.

Our wind power sector services include comprehensive planning and project support, system assembly, maintenance, servicing, and repair as well as the supply of turnkey distribution and switching stations. In terms of repowering, we cover everything from the new installation of switching stations, cable lines, and transformers up to 110kV, to commissioning, repeat and protection testing. We also carry out standards compliant grounding measurements and network analyses. Our own oil laboratory alows us to carry out and evaluate all VDE oil analyses, supplemented by our mobile oil treatment plants for extensive services on transformers of any size.

Our core competencies include cable testing and diagnostics. We are equipped with 15 cable measuring and diagnostic vehicles for medium voltage as well as a test facility for high voltage cables with an output voltage of 260kV AC. We also operate a range of mobile metering devices for testing and diagnosing switchgear, insulation, transformation ratio, winding resistance, and dielectric frequency response measurements for transformer testing purposes and currently own the world's most powerful VLF testing facility for standards-compliant on-site cable testing up to an operating voltage of 33kV and a length of up to 100km.

We also have two high-performance fault location systems, one of which is installed in a seaworthy container for the precise location of offshore cable faults and can take on the entire operational management of wind farms. We can locate your cable systems and store the respective GPS data with an accuracy of 1-2cm, and the final report and the GPS data is then passed on to you to be stored in your own database.

Our 24/7 on-call service ensures the safe and long-term operation of your energy supply facility.