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1. 发明授权

US11101068B2 Integrated barrier for protecting the coil of air core reactor from projectile attack 有权
公开(公告)号：US11101068B2
公开(公告)日：2021-08-24
申请号：US15494890
申请日：2017-04-24
申请人： Trench Limited—Trench Group Canada
发明人： Kamran Kahn
IPC分类号： H01F27/06 , H01F37/00 , F41H5/04
摘要： An air core reactor for use in an electric power transmission and distribution system or in an electric power system of an electrical plant is provided. The air core reactor comprises an electrically insulated support structure, an outer surface of a coil of windings configured to operate at a potential and isolated to ground or other potentials by the electrically insulated support structure and a projectile resistant cylinder that attaches directly to the outer surface of the coil of windings. The projectile resistant cylinder is configured as an integrated barrier to provide a first measure of survivability to the air core reactor such that the integrated barrier enables a continued operation of equipment after a threat has been eliminated.

2. 发明授权

US09406433B2 Sound mitigation for air core reactors 有权
标题翻译：空气核反应堆的声音减轻
公开(公告)号：US09406433B2
公开(公告)日：2016-08-02
申请号：US14409306
申请日：2013-07-09
申请人： TRENCH LIMITED
发明人： Tom Chiu Hung Lau , Fabian Best , Terry Wai Cheong Wong , Willie Kim Fung Chan , Sean Alves , Thong Tong , Michael Sharp
IPC分类号： H01F27/06 , H01F27/08 , H01F27/28 , H01F27/29 , H01F27/30 , H01F27/33 , H01F27/38
CPC分类号： H01F27/2823 , H01F27/33 , H01F27/38
摘要： An air core reactor (47) including a plurality of concentric conductor winding packages (44, 46) wherein a force (F+) generated by the interaction of current (+) flowing through one package and a magnetic field (42) generated by the reactor is out of phase (F−) with a force generated in another package, thereby effectively mitigating audible sound generated by power operation of the reactor. In one embodiment (FIG. 3), the out of phase force may be generated when at least one winding (38c, 37d) of one package (38) is configured to conduct a current (−) that is at least 10 degrees out of phase with a current (+) conducted by another package (40) or other windings (38a, 38b) of the reactor (36).
摘要翻译：一种包括多个同心导体绕组封装（44,46）的空心电抗器（47），其中由流过一个封装的电流（+）与由反应堆产生的磁场（42）的相互作用产生的力（F +）在另一个封装中产生的力与异相（F-）异相，从而有效地减轻了反应堆功率运行产生的声音。在一个实施例（图3）中，当一个封装（38）的至少一个绕组（38c，37d）被配置为传导至少10度的电流（ - ）时，可以产生异相力由电抗器（36）的另一封装（40）或其它绕组（38a，38b）传导的电流（+）相位。

3. 发明授权

US10366824B2 Direct mounting bracket 有权
公开(公告)号：US10366824B2
公开(公告)日：2019-07-30
申请号：US15484951
申请日：2017-04-11
申请人： Trench Limited
发明人： Kamran Khan
IPC分类号： H01F27/06 , H01F27/32 , H01F37/00 , H01F27/28 , H01F27/30
摘要： An air core reactor for use in an electric power transmission and distribution system or in an electric power system of an electrical plant is provided. The air core reactor comprises an electrically insulated support structure, a coil of windings configured to operate at a potential and isolated to ground or other potentials by the electrically insulated support structure and an insulator mounting bracket that attaches directly to the coil. The insulator mounting bracket is configured as an interface between the coil and the electrically insulated support structure.

4. 发明申请

US20190141850A1 OUTDOOR ELECTRICAL APPARATUS HAVING AN OUTER HOUSING ARRANGED TO SELECTIVELY ENCASE A MAIN ENCAPSULANT 审中-公开
公开(公告)号：US20190141850A1
公开(公告)日：2019-05-09
申请号：US16145568
申请日：2018-09-28
申请人： Trench Limited - Trench Group Canada
发明人： Paolo Diamanti , Jayakumar Harinathan , Ross Presta
IPC分类号： H05K5/06 , H05K5/02 , C08G59/00
摘要： An outdoor electrical apparatus (10) and methodology for manufacturing such apparatus are provided. The apparatus includes an electrical device (12), and an encapsulation housing system including a main encapsulant (11a) and an outer housing (11b). The main encapsulant may be arranged to encapsulate the electrical device, and the outer housing may be arranged to selectively encase surfaces of the main encapsulant based on an extent to which the surfaces of the main encapsulant otherwise would be subject to outdoor exposure. The main encapsulant comprises a bisphenol epoxy resin, and the outer housing comprises a cycloaliphatic epoxy resin to provide weatherability and resistance to ultraviolet (UV) radiation. This approach of selectively encasing surfaces of the main encapsulant with the outer housing, based on a relatively lower cost epoxy resin, is effective to balance competing demands, such as reducing a total monetary cost of the encapsulation housing system while meeting requisites regarding weatherability and UV radiation resistance.

5. 发明授权

US09995360B2 Bearing with spherical rotational damping 有权
公开(公告)号：US09995360B2
公开(公告)日：2018-06-12
申请号：US15036427
申请日：2013-11-19
申请人： Trench Limited
发明人： Kamran Khan , Andrew Lang
IPC分类号： F16F9/00 , F16F9/10 , F16F15/023 , F16M7/00 , F16M11/14 , F16C11/08 , F16C11/06 , F16F13/00
CPC分类号： F16F9/10 , F16C11/0614 , F16C11/08 , F16F15/023 , F16M7/00 , F16M11/14 , F16M2200/041
摘要： A damping bearing (34, 36) provides relative rotations between first and second subassemblies about a point (40). The first subassembly includes a fluid containment vessel (26, 26C, 26D) containing a fluid (32). The second subassembly includes a plunger (42) with a fluid deformation element (46, 46B) immersed in the fluid. The relative rotations are damped by viscosity of the fluid resisting motions of the fluid deformation element. Damping is especially effective in multiple planes containing a given line (23 or 43) through the point (40). The plunger may have rotational symmetry, and may be cylindrical about the given line. Lateral fluid bounding surfaces (50, 52, 52D) of the containment vessel may be spherical about the point, or may be shaped to provide clearance to the deformation element that varies with angular displacement between the first and second subassemblies to provide a predetermined damping profile.

6. 发明授权

US09765840B2 Damping bearing 有权
公开(公告)号：US09765840B2
公开(公告)日：2017-09-19
申请号：US14409255
申请日：2013-07-09
申请人： TRENCH LIMITED
发明人： Kamran Khan , Helmut Reisinger
IPC分类号： F16C11/06 , F16C23/04 , F16M11/06 , F16F9/32 , F16M7/00 , F16C27/02
CPC分类号： F16F9/3207 , F16C11/068 , F16C23/043 , F16C27/02 , F16M7/00 , F16M11/06 , H01F27/06 , Y10T403/32614 , Y10T403/32704 , Y10T403/32729
摘要： A damping bearing (20) including an inner ball portion (34) attached to an end of a support shaft (32), and an outer collar portion (30) attached to a housing (22) for rotation of the housing relative to the support shaft about a center point. A chamber (28) for a damping fluid such as grease is defined by clearance between the end of the shaft and the housing. The fluid chamber has opposed bounding surfaces (29, 37) that are non-spherical about the center of rotation so that the chamber changes shape upon rotation of the bearing, thus shifting damping fluid across the chamber. The chamber may be a flat cylindrical void normal to a centerline (33) of the shaft. It may provide only enough clearance for less than ±10 of relative rotation between the housing and shaft. A set-screw (26) may pressurize the fluid in the chamber.

7. 发明授权

US10959344B2 Outdoor electrical apparatus having an outer housing arranged to selectively encase a main encapsulant 有权
公开(公告)号：US10959344B2
公开(公告)日：2021-03-23
申请号：US16145568
申请日：2018-09-28
申请人： Trench Limited
发明人： Paolo Diamanti , Jayakumar Harinathan , Rosario Presta
IPC分类号： H02G3/08 , H05K5/00 , H05K5/06 , C08G59/00 , H05K5/02 , C08G59/24 , C08L63/00 , H01F27/32 , H01F37/00
摘要： An outdoor electrical apparatus (10) and methodology for manufacturing such apparatus are provided. The apparatus includes an electrical device (12), and an encapsulation housing system including a main encapsulant (11a) and an outer housing (11b). The main encapsulant may be arranged to encapsulate the electrical device, and the outer housing may be arranged to selectively encase surfaces of the main encapsulant based on an extent to which the surfaces of the main encapsulant otherwise would be subject to outdoor exposure. The main encapsulant comprises a bisphenol epoxy resin, and the outer housing comprises a cycloaliphatic epoxy resin to provide weatherability and resistance to ultraviolet (UV) radiation. This approach of selectively encasing surfaces of the main encapsulant with the outer housing, based on a relatively lower cost epoxy resin, is effective to balance competing demands, such as reducing a total monetary cost of the encapsulation housing system while meeting requisites regarding weatherability and UV radiation resistance.

8. 发明申请

US20170092408A1 COMPOSITE CRADLE FOR USE WITH COIL OF AIR CORE REACTORS 审中-公开
公开(公告)号：US20170092408A1
公开(公告)日：2017-03-30
申请号：US14867611
申请日：2015-09-28
申请人： Trench Limited
发明人： Kamran Khan
IPC分类号： H01F27/06 , F16M13/02
CPC分类号： H01F27/06 , F16M13/02 , H01F27/306 , H01F27/324 , H01F37/005
摘要： A cradle to mount a coil of an electric power line reactor is provided. The cradle includes a plurality of a pair of opposing arms. Each arm has a free end and an end coupled to a hub. The free end of each arm is configured to be coupled to a bearing assembly. The cradle further includes a plurality of outer members. The free ends of each pair of adjacent arms of the plurality of a pair of opposing arms are coupled to a corresponding outer member of the plurality of outer members. At least one outer member of the plurality of outer members is formed from a dielectric material and the plurality of a pair of opposing arms being formed from a material that enables the cradle to support weight of the coil.

9. 发明授权

US09601254B2 Apparatus and method for mitigating thermal excursions in air core reactors due to wind effects 有权
公开(公告)号：US09601254B2
公开(公告)日：2017-03-21
申请号：US14415065
申请日：2013-07-23
申请人： TRENCH LIMITED
发明人： Michael Sharp , Mark Gvozdanovic
IPC分类号： H01F27/08 , H01F27/28 , H01F37/00 , H01F27/00
CPC分类号： H01F27/085 , H01F27/002 , H01F27/08 , H01F27/2876 , H01F37/005
摘要： An air core, dry type, power reactor (10) of the type having multiple concentrically positioned winding layers (12) extending along a central axis and above arms (24) of a first spider unit (16) when the reactor is horizontally positioned with respect to a horizontal ground plane, the winding layers (12) arranged in spaced-apart relation providing air gaps (20) between the winding layers allowing air to flow along the winding layers. A deflector (40) is positioned between the winding layers (12) and the ground plane to receive air from wind blowing toward the reactor (10) and guide the air in an upward direction from the deflector (40) and along the gaps (20).

10. 发明申请

US20160290429A1 BEARING WITH SPHERICAL ROTATIONAL DAMPING 有权
标题翻译：轴承与球形旋转阻尼
公开(公告)号：US20160290429A1
公开(公告)日：2016-10-06
申请号：US15036427
申请日：2013-11-19
申请人： TRENCH LIMITED
发明人： Kamran Khan , Andrew Lang
IPC分类号： F16F9/10 , F16M11/14 , F16F15/023 , F16C11/08 , F16C11/06
CPC分类号： F16F9/10 , F16C11/0614 , F16C11/08 , F16F15/023 , F16M7/00 , F16M11/14 , F16M2200/041
摘要： A damping bearing (34, 36) provides relative rotations between first and second subassemblies about a point (40). The first subassembly includes a fluid containment vessel (26, 26C, 26D) containing a fluid (32). The second subassembly includes a plunger (42) with a fluid deformation element (46, 46B) immersed in the fluid. The relative rotations are damped by viscosity of the fluid resisting motions of the fluid deformation element. Damping is especially effective in multiple planes containing a given line (23 or 43) through the point (40). The plunger may have rotational symmetry, and may be cylindrical about the given line. Lateral fluid bounding surfaces (50, 52, 52D) of the containment vessel may be spherical about the point, or may be shaped to provide clearance to the deformation element that varies with angular displacement between the first and second subassemblies to provide a predetermined damping profile.
摘要翻译：阻尼轴承（34,36）围绕点（40）提供第一和第二子组件之间的相对旋转。第一子组件包括容纳流体（32）的流体容纳容器（26,26C，26D）。第二子组件包括具有浸入流体中的流体变形元件（46,46B）的柱塞（42）。相对旋转被流体变形元件的流体阻力运动的粘度阻尼。阻尼在包含通过点（40）的给定线（23或43）的多个平面中特别有效。柱塞可以具有旋转对称性，并且可以围绕给定的线圆柱形。容纳容器的横向流体界面（50,52,52D）可围绕该点是球形的，或者可以被成形为为与第一和第二子组件之间的角位移而变化的变形元件提供间隙，以提供预定的阻尼曲线。

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