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Pat. 10615587 United States, Int. Cl.22 H02H 3/16, G01R 19/12, H02H 1/00, H02H 3/06, H02H 7/26, H02J 3/36, H02M 5/458, H02M 7/483, H02M 7/757. Bipolar DC power transmission scheme : Appl. N 15/570161 : Filed 27.04.2016 : Pub. 07.04.2020 : / Robin Gupta, Robert Stephen Whitehouse, Carl David Barker, Andrzej Adamczyk ; Assignee General Electric Technology Gmbh ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10615587/en?oq=US10615587.html (дата обращения: ДД.ММ.ГГГГ).