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公开(公告)号：US09948199B2
公开(公告)日：2018-04-17
申请号：US14466690
申请日：2014-08-22
Applicant: ABB Schweiz AG
Inventor： Mats Berglund , Bo Akesson
CPC classification number: H02M5/44 , H01F30/12 , H01F2038/006 , H02M5/4505 , H02M5/4585 , H02M7/003
Abstract: An AC-AC converter system includes transformer arrangements and HVDC converter units on primary and secondary sides of the system, respectively. The system exhibits first and second three-phase AC networks, and the converter units are interconnected via a DC connection. By integrating at least part of two transformer arrangements in one transformer unit, a cost efficient transformer configuration can be achieved.
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公开(公告)号：US09672969B2
公开(公告)日：2017-06-06
申请号：US14705537
申请日：2015-05-06
Applicant: ABB Schweiz AG
Inventor： Anders Eriksson , Erik Wedin , Jan Lindgren , Mats Berglund , Mats Ramkvist , Stina Bertilsson , Tina Brunström
CPC classification number: H01F27/04 , H01F27/022
Abstract: A high voltage electromagnetic induction device including: a lead-through device-receiving structure having an opening for receiving a lead-through device, a lead-through device extending through the opening, wherein an internal portion is tapering in a direction along the central axis of the lead-through device away from the opening, and an electrical insulation barrier which is arranged in the lead-through device-receiving structure, arranged around and distanced from the internal portion, and which electrical insulation barrier is tapering in the direction, whereby a duct is formed between the internal surface of the electrical insulation barrier and the external surface of the internal portion of the lead-through device, wherein the electrical insulation barrier is tapering relative to the lead-through device such that the distance between the internal surface of the electrical insulation barrier and the external surface of the lead-through device increases in the direction.
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