Arteche Lantegi Elkartea, S.A. designs, manufactures, integrates, and supplies electrical equipment and solutions focusing on renewable energies and smart grids in Spain and internationally. It offers high voltage instrument transformers, power voltage transformers, protection of mixed overhead-underground lines, digital instrument transformers, IEC medium voltage instrument transformers, IEEE/ANSI medium voltage instrument transformers, medium voltage sensors, railway relays, secondary injection tests products, substation automation systems, distribution automation controllers, reclosers and switches, capacitor banks and harmonic trips, and power quality products, as well as trip, supervision, and auxiliary relays. Its products are used for measurement, protection, automation, monitoring, and communication in the generation, transmission, and distribution sectors. The company was founded in 1946 and is based in Mungia, Spain.