In recent years, JEMA has carried out major projects for large companies that require advanced technical qualifications that have contributed to reinforcing JEMA’s position around the world. Among its achievements, the Gipuzkoa based company has supplied NASA with three 1300 kVA frequency converters for the installation of the tracking of the American space agency’s deep space missions in Robledo de Chavela. The goal of the order was to guarantee the power supply and provide secure power to the 60 Hz systems that are responsible for controlling navigation in space missions. The device supplied by JEMA, with high availability and reliability, can be used either without diesel generators or with them in parallel and it also provides a control system with very fast communication based in fibre optics.

The Eurotunnel project entrusted JEMA with supplying a reactive power compensator in a 25 KV catenary that maintains its voltage such that the trains travelling through the tunnel are activated from the French side 50 km away where the price of energy is more competitive than in the UK. It’s a novel system that makes it possible to inject energy to increase the voltage of the catenary without distorting client communications passing through the same catenary. The JEMA controls are integrated into the substation’s existing control system. The system is diagnosed and controlled remotely by JEMA.

The recognition available in technologies applied to nuclear fusion energy led the JET project to hire JEMA to supply six plasma heat sources for experimental facilities in this field. The characteristics of this project, entirely tested at JEMA, includes output voltage of 130 KV DC and output power of 17 MW.

In addition, JEMA has provided eight power supplies for the German national research centre that operates particle accelerators used for researching the structure of matter in the DESY project. The device is located in the pre-accelerator, which is a component common to the entire facility and that operations depend on. The device provided is extremely high precision and is up to 1 MWA with a very high output current stability (variations in 24 hours below 0.001%).