Uno Lamm

August Uno Lamm (May 22, 1904 – June 1, 1989) was a Swedish electrical engineer and inventor. He was sometimes called "The Father of High Voltage Direct Current" power transmission.

Biography

Lamm was born in Gothenburg on May 22, 1904 to Fredrik Hjalmar Lamm and Aino Maria Lovisa Wilhelmina Wijkander. He obtained his master's degree at the Royal Institute of Technology in Stockholm in 1927. After a short time in compulsory military service he joined ASEA, the Swedish electrical conglomerate, initially working in their training program. In 1929 he was made manager of the project to develop a high-voltage mercury arc valve. Valves at the time operated only at about 2500 volts, and if higher-voltage valves were available they could have practical use in the transmission of large quantities of electric energy over long distances.

In 1943 Lamm obtained his Ph.D. from the Royal Institute of Technology, studying part-time while developing the mercury arc valve. After twenty years or so of development work to produce a valve with the necessary rating for HVDC transmission, ASEA obtained a contract for the HVDC Gotland project in 1950, which when completed in 1955 became the first modern fully commercial HVDC system.