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公开(公告)号：US08729998B2
公开(公告)日：2014-05-20
申请号：US13489565
申请日：2012-06-06
CPC分类号： H01F38/02 , H01F27/245 , H01F27/263 , H01F30/12
摘要： A three step non-linear transformer core is formed from three sections of laminations each having different widths and cross-sectional areas. A first section of laminations is formed by cross-slitting a generally rectangular sheet or strip of metal. A resulting generally triangular segment is then wound upon a mold to form a first section of a core frame having a trapezoidal cross section. A second section of laminations is wound upon the first section of laminations to form a segment of a core frame having a rhombic cross section. The third section of laminations is wound upon the second section of laminations to form a segment of a core frame having a trapezoidal cross section. Each of the first, second, and third sections of laminations are offset from one another by a predetermined angle of offset.
摘要翻译： 三段非线性变压器磁芯由三个具有不同宽度和横截面积的叠片形成。 叠片的第一部分是通过交叉切割一般为矩形的金属板或条带而形成的。 然后将得到的大致三角形的段缠绕在模具上以形成具有梯形横截面的芯框架的第一部分。 叠片的第二部分缠绕在叠片的第一部分上以形成具有菱形横截面的芯框架的段。 叠片的第三部分缠绕在第二段叠片上以形成具有梯形横截面的芯框架的一段。 叠片的第一，第二和第三部分中的每一个彼此偏移预定的偏移角。
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公开(公告)号：US20130043966A1
公开(公告)日：2013-02-21
申请号：US13209842
申请日：2011-08-15
IPC分类号： H01F27/29
CPC分类号： H01F27/327 , H01F29/025
摘要： Tap covers and projections for an electrical device are provided. The tap projections have bosses or taps raised from a surface of the tap projection and encapsulated with a resin except for an outer surface of the bosses or taps. The tap projections may have a channel or recess between individual bosses or taps to prevent degradation of the insulation between the respective adjacent bosses or taps. When a tap cover is provided, it is pushed on or bolted to the tap projection. The tap cover may be provided for an individual tap or an entire tap projection and may be formed of a resin or an elastomeric material. The tap cover has a first generally planar surface and a second generally annular surface having a circumferentially-extending groove on an inside surface. The circumferentially-extending groove is located slightly beneath the second generally annular surface. The groove of the tap cover is designed to fully engage with a raised lip of a tap projection or individual tap of a transformer. Another embodiment of the tap cover has openings to receive epoxy-headed bolts that are used to connect the tap cover to the tap projection through the tap connectors.
摘要翻译： 提供电气设备的抽头盖和突起。 龙头突起具有从龙头突起的表面凸起的凸起或水龙头，并且除了凸起或水龙头的外表面之外用树脂封装。 龙头突起可以在单独的凸台或水龙头之间具有通道或凹槽，以防止相应的相邻凸台或水龙头之间的绝缘的劣化。 当提供水龙头盖时，将其按压或螺栓连接到水龙头突起。 抽头盖可以设置用于单个抽头或整个抽头突出部，并且可以由树脂或弹性体材料形成。 龙头盖具有第一大体上平坦的表面和在内表面上具有周向延伸的槽的第二大体呈环形的表面。 周向延伸的凹槽位于第二大体环形表面的稍微下方。 分接盖的凹槽被设计成完全与变压器的抽头突起或单独抽头的凸起的唇部接合。 龙头盖的另一实施例具有用于接收环氧树脂头螺栓的开口，其用于通过龙头连接器将龙头盖连接到龙头突起。
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3.发明申请Non-Linear Transformer with Improved Construction and Method of Manufacturing the Same 审中-公开具有改进结构的非线性变压器及其制造方法公开(公告)号：US20120139678A1
公开(公告)日：2012-06-07
申请号：US13308998
申请日：2011-12-01
CPC分类号： H01F41/08 , H01F3/10 , H01F27/2847 , H01F30/12 , Y10T29/49071
摘要： A three-phase non-linear transformer and a method of constructing the same. The non-linear transformer includes a non-linear ferromagnetic core having a plurality of frames, each of which has a closed or substantially closed periphery. The frames are arranged to form at least three legs. A low voltage winding is formed around each leg and a high voltage winding is formed around each low voltage winding. Each high voltage winding includes a plurality of serially-connected disc windings. Each of the disc windings is formed of alternating concentric layers of a conductor strip and an insulation strip, wherein the conductor strip having a width to thickness ratio of greater than 10:1. A casing encapsulates each pair of high voltage and low voltage windings. The casing is formed using a mold at least partially formed by a winding device used to wind the high voltage and low voltage windings.
摘要翻译： 一种三相非线性变压器及其构造方法。 非线性变压器包括具有多个框架的非线性铁磁芯，每个框架具有闭合或基本上封闭的周边。 框架布置成形成至少三条腿。 在每个支腿周围形成低压绕组，并且在每个低压绕组周围形成高压绕组。 每个高压绕组包括多个串联连接的盘绕组。 每个盘绕组由导体条和绝缘条的交替的同心层形成，其中导体条的宽度与厚度之比大于10:1。 套管封装每对高压和低压绕组。 壳体使用至少部分地由用于卷绕高压和低压绕组的绕组装置形成的模具形成。
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公开(公告)号：US20130162386A1
公开(公告)日：2013-06-27
申请号：US13336283
申请日：2011-12-23
CPC分类号： H01F27/23
摘要： A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.
摘要翻译： 用于应用于变压器芯的暴露表面的保护涂层系统可防止芯的腐蚀。 保护涂层适用于工业和海洋环境，其中许多因素会影响变压器铁芯的使用寿命。 保护涂层至少包括三层涂层。 第一涂层是无机硅酸锌底漆。 第二涂层是聚硅氧烷。 第三涂层是室温或高温硫化硅橡胶。 可以将硅橡胶密封剂进一步施加到芯的外边缘表面。
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公开(公告)号：US08610532B2
公开(公告)日：2013-12-17
申请号：US13336283
申请日：2011-12-23
IPC分类号： H01F27/24
CPC分类号： H01F27/23
摘要： A protective coating system for application to exposed surfaces of a transformer core prevents corrosion of the core. The protective coating is suitable for use in industrial and marine environments where many factors impact the life of the transformer core. The protective coating comprises at least three coating layers. The first coating layer is an inorganic zinc silicate primer. The second coating layer is a polysiloxane. The third coating layer is a room temperature or high temperature vulcanizing silicone rubber. A silicone rubber sealant may be further applied to outer edge surfaces of the core.
摘要翻译： 用于应用于变压器芯的暴露表面的保护涂层系统可防止芯的腐蚀。 保护涂层适用于工业和海洋环境，其中许多因素会影响变压器铁芯的使用寿命。 保护涂层至少包括三层涂层。 第一涂层是无机硅酸锌底漆。 第二涂层是聚硅氧烷。 第三涂层是室温或高温硫化硅橡胶。 可以将硅橡胶密封剂进一步施加到芯的外边缘表面。
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公开(公告)号：US20130328652A1
公开(公告)日：2013-12-12
申请号：US13489565
申请日：2012-06-06
CPC分类号： H01F38/02 , H01F27/245 , H01F27/263 , H01F30/12
摘要： A three step non-linear transformer core is formed from three sections of laminations each having different widths and cross-sectional areas. A first section of laminations is formed by cross-slitting a generally rectangular sheet or strip of metal. A resulting generally triangular segment is then wound upon a mold to form a first section of a core frame having a trapezoidal cross section. A second section of laminations is wound upon the first section of laminations to form a segment of a core frame having a rhombic cross section. The third section of laminations is wound upon the second section of laminations to form a segment of a core frame having a trapezoidal cross section. Each of the first, second, and third sections of laminations are offset from one another by a predetermined angle of offset.
摘要翻译： 三段非线性变压器磁芯由三个具有不同宽度和横截面积的叠片形成。 叠片的第一部分是通过交叉切割一般为矩形的金属板或条带而形成的。 然后将得到的大致三角形的段缠绕在模具上以形成具有梯形横截面的芯框架的第一部分。 叠片的第二部分缠绕在叠片的第一部分上以形成具有菱形横截面的芯框架的段。 叠片的第三部分缠绕在第二段叠片上以形成具有梯形横截面的芯框架的一段。 叠片的第一，第二和第三部分中的每一个彼此偏移预定的偏移角。
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公开(公告)号：US20130257214A1
公开(公告)日：2013-10-03
申请号：US13435603
申请日：2012-03-30
CPC分类号： H02K3/34 , H01F27/324 , H01F38/18 , H02K3/30
摘要： A composite electrical insulation material is comprised of first, second and third layers. The first and third layers are glass fiber mat and the second layer is a thin film material. The first and third layers are bonded to the second layer using a thin resin solution. The insulation is used in electrical machines such as transformers, generators, and motors. The insulation serves as a high/low barrier, high voltage conductor wrap, and low voltage sheet insulation in transformers. In generators and motors, the insulation serves as wrap for conductor windings and wedge insulation for stator and rotor assemblies.
摘要翻译： 复合电绝缘材料由第一层，第二层和第三层组成。 第一层和第三层是玻璃纤维毡，第二层是薄膜材料。 使用薄树脂溶液将第一层和第三层结合到第二层。 绝缘材料用于变压器，发电机和电机等电机。 绝缘层用作变压器中的高/低屏障，高压导体套管和低压板绝缘。 在发电机和电机中，绝缘层用作定子和转子组件的导体绕组和楔形绝缘体的包裹物。
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