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公开(公告)号：US3639872A
公开(公告)日：1972-02-01
申请号：US3639872D
申请日：1970-12-31
Applicant: ASEA AB
Inventor： HESSEN PETTER , SIIRAK RUUDI
CPC classification number: H01F27/33 , H01F27/365
Abstract: In transformers for high power amounts, for collecting the leakage flux and leading it back to the iron core, plates of laminated magnetic material are arranged close to the ends of the winding coils and at least one end of the plates is in magnetic connection with the core.
Abstract translation: 在用于高功率量的变压器中，为了收集漏磁通并将其引回到铁芯，层叠磁性材料的板被布置成靠近绕组线圈的端部，并且板的至少一端与 核心。
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公开(公告)号：US3629687A
公开(公告)日：1971-12-21
申请号：US3629687D
申请日：1970-12-18
Applicant: ASEA AB
Inventor： HESSEN PETTER
CPC classification number: H02M7/7575 , Y02E60/60
Abstract: In converter stations in DC networks for ultrahigh voltages there is at least one chain of converter bridges. The converter bridges in each chain are series connected on the DC side and connected over transformers to an alternating current network on the AC side. When there are two or more chains all chains are connected in parallel between earth and the transmission line in the DC network. At least some of the apparatus connected to high potential, such as transformers, reactors and the like, have their tanks connected to the DC side of the converter chain at a point where the potential in relation to earth is at least half the voltage in the DC network.
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