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Pat. 10693293 United States, Int. Cl.22 H02J 1/00, H02H 3/02, H02H 3/06, H02H 7/26, H02H 9/02, H02M 1/32, H02M 3/04, H02M 7/04. Fault protection in converter-based DC distribution systems : Appl. N 15/344013 : Filed 04.11.2016 : Pub. 23.06.2020 : / Li Qi, Jiuping Pan, Yao Chen, Guoju Zhang ; Assignee Abb Schweiz Ag ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10693293/en?oq=US10693293.html (дата обращения: ДД.ММ.ГГГГ).