 Långhjelm wanted to further deepen his knowledge in electrical engineering and spent years 1928–1929 studying in UK after a scholarship.Långhjelm returned to Finland in 1930 with improved language skills, professional knowledge and business skills.In 1930 Långhjelm became inspector in couple of years earlier founded "Sähkötarkastuslaitos" (Electrical Inspectorate), that monitored safety of electricity generation, grid and use in the rapidly electrifying country.