Energy Distribution

As with classic air insulated switchboards, substations offer more freedom in planning and extension. The AIS system is divided into primary and secondary systems. We install air insulated switchgears for the voltage range 10 kV - 400 kV whilst providing all necessary services: from the planning phase up to commissioning and finally handing over the documents. Installation and commissioning of complex distribution substations is one of our fields of expertise.

GIS is another field where we offer our customers a comprehensive range of services. Surrounding the electrical conductor with sulphur hexafluoride as a protective gas for insulation, gas-insulated switchgears are completely encapsulated switchgears for high-voltage and medium-voltage applications. Thus, compact switchgears can be installed in tight spaces. GIS switchgears are divided in primary and secondary systems. We assemble gas-insulated substations and switchgears for the voltage range of 10kV - 400kV for both applications. Our certified staff has up-to-date technical knowledge and extensive experience you can rely on; on as well as offshore.

SEAR GmbH is one of the leading providers of assembly solutions for high voltage direct current (HVDC) transmission stations. We install high-voltage components on land, as well as on offshore stations on behalf of the leading providers of HVDC applications. SEAR has played a vital role in the installation of the offshore HVDC systems from different manufacturers in Germany.

One of our core businesses is the construction and maintenance of overhead lines for AIS systems for a voltage range of up to 400 kV. Our comprehensive range of services is achieved with state-of-the-art equipment. We assemble transmission lines that distributes to the mast, as well as features that protect birds necessitated by federal laws.

We are at the forefront of constructing and maintaining cables, as well as switchgears in the range of up to 400 kV. Our state-of-the-art equipment is paramount to our service. Our employees are certified and highly skilled in the field of terminations up to the voltage range of 145 kV. SEAR's high voltage cable systems include AIS and HVDC systems which we install both on and offshore.