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Pat. 10461522 United States, Int. Cl.22 H02H 7/00, H02H 7/12, H02H 7/125, H02M 7/12, H02M 7/48, H02M 7/72, H04B 3/00, H02M 7/797. Protection device and protection system : Appl. N 15/542334 : Filed 13.02.2015 : Pub. 29.10.2019 : / Takuo Aramaki ; Assignee Mitsubishi Electric Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10461522/en?oq=US10461522.html (дата обращения: ДД.ММ.ГГГГ).