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first 400 kV AC cable – a 70 m low pressure oil-filled (LPOF) cable connecting an underground power station to the Swedish grid
World's first 120 MVA, 220 kV transformer
Ludvig Fredholm
World’s largest self-cooling transformer rated at 2,500 kVA
Jonas Wenström
First three-phase transmission system in Sweden
Allmänna Svenska Elektriska Aktiebolaget (ASEA) Logo
Synthetic diamonds