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Pat. 10554148 United States, Int. Cl.22 H02M 1/32, H02H 1/04, H02H 9/00, H02J 3/38, H02M 1/36, H02M 7/12. Device and method for premagnetization of a power transformer in a converter system : Appl. N 16/196759 : Filed 20.11.2018 : Pub. 04.02.2020 : / Thomas Brueckner, Michael Bernhard Kocur, Peter Nadolny ; Assignee Ge Energy Power Conversion Technology Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10554148/en?oq=US10554148.html (дата обращения: ДД.ММ.ГГГГ).