公开(公告)号：US10742028B2

公开(公告)日：2020-08-11

申请号：US16656581

申请日：2019-10-18

Applicant: ABB Power Grids Switzerland AG

Inventor： Marko Wichert ,  Kevin Juchem ,  Oliver Derigs

IPC: H02J3/06 ,  G05F1/30 ,  H01F27/38 ,  H01F29/04 ,  H02J3/38 ,  H02J3/18 ,  H01F30/12 ,  H02P13/06

Abstract: A phase shifting transformer for poly-phase alternating current includes source side terminals, load side terminals, an exciting unit, and a series unit. The exciting unit includes further coils that are magnetically coupled to primary coils and to the secondary coils of the exciting unit to provide further voltages. The further coils are connected in series between the source side terminals and the series unit, so that the voltages at the load terminals are combinations of the quadrature voltages and the further voltages with the source voltages, thus modifying the voltage phase displacement between the source side terminals and the load side terminals.