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公开(公告)号：US20170352473A1
公开(公告)日：2017-12-07
申请号：US15174538
申请日：2016-06-06
Applicant: ABB Technology AG
Inventor： Zepu Wang
CPC classification number: H01F27/324 , H01F27/30 , H01F30/12
Abstract: A transformer includes a core having first and second yokes and at least one leg extending between the first and second yokes. The at least one leg includes a coil assembly mounted thereto between the first and second yokes. An annular end barrier is provided at one or both ends of the coil assembly to provide a barrier between the adjacent yoke and a high voltage winding of the coil assembly.
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公开(公告)号：US10102965B2
公开(公告)日：2018-10-16
申请号：US15174538
申请日：2016-06-06
Applicant: ABB Technology AG
Inventor： Zepu Wang
Abstract: A transformer includes a core having first and second yokes and at least one leg extending between the first and second yokes. The at least one leg includes a coil assembly mounted thereto between the first and second yokes. An annular end barrier is provided at one or both ends of the coil assembly to provide a barrier between the adjacent yoke and a high voltage winding of the coil assembly.
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公开(公告)号：US20160314893A1
公开(公告)日：2016-10-27
申请号：US14696529
申请日：2015-04-27
Applicant: ABB Technology AG
Inventor： Zepu Wang
CPC classification number: H01F27/2823 , H01F27/24 , H01F27/324
Abstract: One or more electrical transformers comprising barrier structures for improved flashover resistance are provided herein. A barrier structure may be positioned between a higher voltage winding and a lower voltage winding, between the higher voltage winding and a core, or between two higher voltage windings of a multi-phase electrical transformer. The barrier structure may comprise a first material having a relatively lower permittivity value such as about 2.5 or less, which may provide improved flashover resistance. In an example, the barrier structure may comprise a second material having a relatively higher permittivity value such as about 2.5 or greater, which may provide improved puncture resistance. The barrier structure may comprise any number of layers of the first material and/or the second material
Abstract translation: 本文提供了一个或多个包括用于改善防闪电阻的阻挡结构的电变压器。 阻挡结构可以位于较高电压绕组和较低电压绕组之间，位于较高电压绕组和铁心之间，或位于多相电力变压器的两个较高电压绕组之间。 阻挡结构可以包括具有相对较低的介电常数值（例如约2.5或更小）的第一材料，其可以提供改善的防闪电阻。 在一个示例中，阻挡结构可以包括具有相对较高的介电常数值（例如约2.5或更大）的第二材料，其可以提供改善的抗穿刺性。 阻挡结构可以包括第一材料和/或第二材料的任何数量的层
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