Arteche Lantegi Elkartea, S.A. engages in the design, manufacture, integration, and supply of 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 blocks, substation automation systems, distribution automation controllers, capacitor banks and harmonic trips, reclosers and switches, and power quality solutions for grid connected renewables, 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 headquartered in Mungia, Spain.