Bertil Berggren

3 Patents

• US125738472026

  Energy Storage System for a Direct Current Transmission System and a Method for Exchanging Energy with a Direct Current Transmission System

  Hitachi Energy Ltd

  0 cites
• US118629752024

  Power Transfer Between MV Feeders in a Power Distribution Network

  ABB Schweiz AG

  0 cites
• US118112192023

  Restoration of Fault Insulated Feeder

  ABB Schweiz AG

  0 cites