Isolated phase bus duct joint assembly
    1.
    发明授权
    Isolated phase bus duct joint assembly 有权
    隔离相母线管接头总成

    公开(公告)号:US06677532B2

    公开(公告)日:2004-01-13

    申请号:US10366473

    申请日:2003-02-14

    IPC分类号: H02G506

    CPC分类号: H02G5/061

    摘要: An isolated phase bus duct joint assembly couples together first and second phase bus duct sections where each section has an interior bus conductor surrounded by an outer housing. The joint assembly couples end portions of the interior bus conductor and has first and second conductor coupling portions each extending from the end portion of one of the interior bus conductors. Each coupling portion has a reduced outside dimension relative to the interior bus conductors. The joint assembly has a plurality of movable electrical contact fingers mounted by spring loaded adjustment fasteners around the outside surface of the first conductor coupling portion. Each of the fingers extends beyond the first conductor coupling portion for engagement with the outside surface of the second conductor coupling portion. The spring loaded adjustment fastener has a threaded stem passing through the finger and the first inner conductor coupling portion. The stem has an adjustable head engaging an outer surface of the finger and a compression spring mounted over the stem to engage the inside surface of the first inner conductor coupling portion. The heads and stems are adjusted relative the compression spring to urge the fingers into locking engagement with the first and second coupling portions. This advantageously results in no substantial increase in electrical clearance required between the inner bus conductorŝ and the outer housing. Further, the heads may be backed off to provide for de-coupling or separation of the joint.

    摘要翻译: 隔离的相母线管道接头组件将第一和第二相母线管道部分连接在一起,其中每个部分具有被外部壳体包围的内部总线导体。 所述接头组件连接所述内部总线导体的端部,并且具有第一和第二导体耦合部分,每个所述第一和第二导体耦合部分从所述内部总线导体之一的端部延伸。 每个联接部分相对于内部总线导体具有减小的外部尺寸。 接头组件具有多个可移动的电接触指,弹性加载的调节紧固件围绕第一导体连接部分的外表面安装。 每个指状物延伸超过第一导体耦合部分,用于与第二导体耦合部分的外表面接合。 弹簧加载的调节紧固件具有穿过手指和第一内部导体联接部分的螺纹杆。 所述杆具有接合所述手指的外表面的可调头部和安装在所述杆上的压缩弹簧,以与所述第一内部导体联接部分的内表面接合。 头和杆相对于压缩弹簧被调节,以推动手指与第一和第二联接部分的锁定接合。 这有利地导致内部总线导体和外部壳体之间所需的电气间隙的实质增加。 此外,头可以被退回以提供关节的解耦或分离。

    Anti-friction rotating contact assembly
    2.
    发明授权
    Anti-friction rotating contact assembly 失效
    抗摩擦旋转接触组件

    公开(公告)号:US5853294A

    公开(公告)日:1998-12-29

    申请号:US768649

    申请日:1996-12-18

    IPC分类号: H01R39/64 H01R39/00

    CPC分类号: F16C41/002 H01R39/643

    摘要: This invention relates to a rolling electrical contact assembly which is very similar to an anti-friction bearing. The contact has an inner and outer race made of a conductive material. A set of conductive rollers roll around in the space between the races. A cage (insulating) keeps the rollers in proper spaced relationship. The outer race is stationary and is composed of segments having V-shaped spaces between the segments and is connected to an electrical cable, and the inner race which rotates on a shaft is connected by a cable carried by the shaft to a suitable current destination. The segments of the outer race are spring loaded to improve the contact conductivity between the rollers and the inner and outer races.

    摘要翻译: 本发明涉及一种非常类似于抗摩擦轴承的滚动电接触组件。 接触件具有由导电材料制成的内圈和外圈。 一组导电辊在赛跑之间的空间中滚动。 保持架(绝缘)使辊保持正确的间隔关系。 外圈是固定的,并且由在段之间具有V形空间并且连接到电缆的部分组成,并且在轴上旋转的内圈通过由轴承载的电缆连接到适当的当前目的地。 外圈的节段是弹簧加载的,以改善滚子与内圈和外圈之间的接触导电性。

    Structure for electrical interface
    3.
    发明授权
    Structure for electrical interface 失效
    电接口结构

    公开(公告)号:US4071882A

    公开(公告)日:1978-01-31

    申请号:US744893

    申请日:1976-11-24

    CPC分类号: H02B5/06

    摘要: In an electrical substation, the use of separate towers or poles to terminate overhead lines is obviated by using bus duct for this purpose. Isolated phase or metal-clad bus duct is erected to provide not only the electrically conductive path between the overhead lines and the associated electrical equipment, but also the mechanical strength necessary in order to eliminate the towers and poles of the prior art.

    摘要翻译: 在变电站中,为了达到这个目的,通过使用总线管道可以避免使用单独的塔架或电线来终止架空线路。 架设隔离相或金属覆盖的总线管道,不仅提供架空线路和相关联的电气设备之间的导电路径,而且提供为了消除现有技术的塔和电极所需的机械强度。

    High power rotary transformer with bus duct assembly

    公开(公告)号:US06987344B2

    公开(公告)日:2006-01-17

    申请号:US10366421

    申请日:2003-02-14

    IPC分类号: H01R39/08

    CPC分类号: H02K13/02 H02K47/26

    摘要: A rotary transformer has a bus duct assembly that extends through the hollow shaft of a rotary transformer from collector or slip rings positioned above a drive motor for the rotary transformer to end windings of the rotor positioned most remote from the drive motor. By positioning the leads of the bus duct connection with the rotor end windings on the rotor end windings most remote form the drive motor, the shaft strength and integrity is not reduced due to the torque applied by the drive motor. Further, the shaft is formed from two coupled shaft sections and the bus duct assembly comprises two L shaped sections each positioned substantially within a corresponding shaft section. The bus duct sections are interconnected to complete the bus duct assembly making it simpler to remove the first or upper shaft section from the second or lower shaft section during field servicing. Further, the use of the two bus duct sections within the shaft coupled together simplifies assembly of each bus duct section within its corresponding shaft section.

    Electrical current collector cleaning and cooling for high voltage rotating machines
    5.
    发明授权
    Electrical current collector cleaning and cooling for high voltage rotating machines 失效
    高压旋转电机的电流收集器清洗和冷却

    公开(公告)号:US06903482B2

    公开(公告)日:2005-06-07

    申请号:US10689588

    申请日:2003-10-22

    CPC分类号: H01F38/18 H01R39/48 H02K9/28

    摘要: An electrical current collector system has an electrically conductive slip ring mounted to a rotatable shaft and a fixed conducting ring assembly forming a partially enclosed AC high voltage electrical current conductive ring channel in which slip ring contacting members are mounted. A compartment at ground potential at least partially encloses the slip ring and the fixed conducting ring assembly. A source directs a fluid into the compartment so that the fluid travels through into the conductive ring channel to perform at least one of cooling and cleaning of the slip ring contacting members. A hollow conically shaped insulator has a frustum with a narrower cross-sectional opening connected to the conductive ring channel and a larger diameter cross-sectional portion passing through and connected to the compartment for exhausting the fluid from the current conductive ring channel.

    摘要翻译: 电流收集器系统具有安装到可旋转轴的导电滑环和形成部分封闭的AC高压电流导电环通道的固定导电环组件,其中安装有滑环接触构件。 接地电位的隔室至少部分地包围滑环和固定导电环组件。 源将流体引导到隔室中,使得流体行进通过导电环通道以执行滑环接触构件的冷却和清洁中的至少一个。 空心圆锥形绝缘体具有截头圆锥体,其具有与导电环通道相连接的较窄横截面开口,以及较大直径的横截面部分,其通过并连接到隔间,用于从导电环通道排出流体。

    Envelope for slip-ring contacting members in high-power rotary current collector system
    6.
    发明授权
    Envelope for slip-ring contacting members in high-power rotary current collector system 失效
    大功率旋转集电器系统中滑环接触构件的信封

    公开(公告)号:US06472791B1

    公开(公告)日:2002-10-29

    申请号:US09731879

    申请日:2000-12-08

    IPC分类号: H02K1300

    摘要: An electrical current collector system (20) comprises a rotatable shaft (28) having at least one and preferably plural electrically conductive slip rings (27) mounted thereon. For each phase, a slip ring is paired with a fixed conducting ring assembly (44). The fixed conducting ring assembly forms an envelope within which slip ring-contacting members are situated. The slip ring-contacting members can take many forms, including brushes (240) or rollers (404). The fixed conducting ring assembly comprises a first conducting plate (200T) and a second conducting plate (200B) positioned parallel to one another to form a conductive ring channel (220) therebetween. The slip ring-contacting members (240, 404) are mounted in the conductive ring channel. An at least partially transparent wall (200W) extends between the first conductive plate and the second conductive plate of the fixed conducting ring assembly to further define the conductive ring channel and permit visual inspection of the slip ring-contacting members. An air flow gap (48) exists is preferably provided between the slip ring and the fixed conducting ring assembly. The envelope acts as an electrostatic shield or Faraday cage. The envelope is a high voltage envelope which puts the slip ring-contacting members and other components within the envelope at a same high voltage as the fixed conducting ring assembly. Each pair of fixed conducting ring assembly and slip ring is substantially enclosed in its own grounded compartment (57) for providing electromagnetic shielding.

    摘要翻译: 集电器系统(20)包括具有安装在其上的至少一个且优选多个导电滑环(27)的可旋转轴(28)。 对于每个相,滑环与固定的导电环组件(44)配对。 固定导电环组件形成一个封套,滑环接触构件位于该封套内。 滑环接触构件可以具有许多形式,包括刷子(240)或辊子(404)。 固定导电环组件包括彼此平行定位以在其间形成导电环通道(220)的第一导电板(200T)和第二导电板(200B)。 滑环接触构件(240,404)安装在导电环形通道中。 至少部分透明的壁(200W)在固定导电环组件的第一导电板和第二导电板之间延伸,以进一步限定导电环通道,并允许目视检查滑环接触构件。 优选地,在滑环和固定导电环组件之间设置有气流间隙(48)。 信封充当静电屏蔽或法拉第笼。 外壳是一个高电压外壳,它将滑环接触部件和其他部件放置在外壳内与固定导电环组件相同的高电压。 每对固定导电环组件和滑环基本封闭在其自身的接地隔间(57)中,用于提供电磁屏蔽。

    Slip-ring mounting assembly for high-power rotary current collector system
    7.
    发明授权
    Slip-ring mounting assembly for high-power rotary current collector system 有权
    用于大功率旋转集电器系统的滑环安装组件

    公开(公告)号:US06469414B2

    公开(公告)日:2002-10-22

    申请号:US09731877

    申请日:2000-12-08

    IPC分类号: H09R3914

    摘要: An electrical current collector system includes a rotatable shaft (28); an electrically conductive slip ring (27); and a slip ring support assembly (42). The slip ring support assembly (42) comprises plural post insulators (102) spaced radially about the rotatable shaft for attaching the conductive slip ring to the rotatable shaft. The post insulators facilitate adjusting of the position of the slip ring relative to the rotatable shaft, e.g., to provide concentric positioning. The post insulators comprise an attachment/adjustment assembly (106) for connecting to the slip ring. In one embodiment, the attachment/adjustment assembly comprises a spring plate (134) which is adjustably biased to provide a preloading displacement that absorbs differential movement due to temperature changes of the slip ring an the rotatable shaft. In one example deployment, the current collector system is provided as part of a rotary transformer system (20) which, e.g., transfers electrical power between a first electrical system (e.g., first electrical grid) and a second electrical system (e.g., second electrical grid).

    摘要翻译: 集电器系统包括可旋转轴(28); 导电滑环(27); 和滑环支撑组件(42)。 滑环支撑组件(42)包括围绕可旋转轴径向隔开的多个柱塞绝缘体(102),用于将导电滑环附接到可旋转轴。 柱塞绝缘子有助于调节滑环相对于可旋转轴的位置,例如提供同心定位。 后绝缘体包括用于连接到滑环的附接/调节组件(106)。 在一个实施例中,附接/调节组件包括可调节地偏置的弹簧板(134),以提供吸收由于滑环与可旋转轴的温度变化引起的差动运动的预加载位移。 在一个示例部署中,集电器系统被提供为旋转变压器系统(20)的一部分,旋转变压器系统(20)例如在第一电气系统(例如,第一电网)和第二电气系统(例如,第二电气系统 格)。

    Cleaning/cooling of high-power rotary current collector system
    8.
    发明授权
    Cleaning/cooling of high-power rotary current collector system 失效
    大功率旋转集电器系统的清洗/冷却

    公开(公告)号:US06465926B2

    公开(公告)日:2002-10-15

    申请号:US09731875

    申请日:2000-12-08

    IPC分类号: H02K1300

    CPC分类号: H01F38/18 H01R39/14 H02K9/28

    摘要: An electrical current collector system (20) comprises an electrically conductive slip ring (27) mounted to a rotatable shaft (28), as well as a fixed conducting ring assembly (44) having slip ring-contacting members (240, 404) mounted thereon. The slip ring (27) and fixed conducting ring assembly (44) are mounted to have an annular gap (48) formed therebetween. A slip ring support assembly (42) comprising plural post insulators (102) spaced radially about the rotatable shaft attaches the conductive slip ring to the rotatable shaft. The slip ring and fixed conducting ring assembly are at least partially enclosed in a compartment (57), to which a source (302) applies a cooling/cleaning fluid. In accordance with the structure and method of the invention, the source directs the fluid over at least some of the post insulators for cleaning of the post insulators. Then the fluid travels through the gap to perform at least one of cooling and cleaning of an interface of the slip ring and the slip ring-contacting members. The conductive ring channel then directs the fluid in at least a partially semicircular path to an exhaust duct (350).

    摘要翻译: 集电器系统(20)包括安装到可旋转轴(28)的导电滑环(27)以及安装在其上的具有滑环接触构件(240,404)的固定导电环组件(44) 。 滑环(27)和固定导电环组件(44)安装成在其间形成有环形间隙(48)。 包括围绕可旋转轴径向隔开的多个柱绝缘体(102)的滑环支撑组件(42)将导电滑环附接到可旋转轴。 滑环和固定导电环组件至少部分地封闭在隔室(57)中,源(302)施加冷却/清洁流体。 根据本发明的结构和方法,源将流体引导至至少一些后绝缘体以清洁柱绝缘体。 然后,流体通过间隙行进以执行滑环和滑环接触构件的界面的冷却和清洁中的至少一个。 导电环通道然后将至少部分半圆形路径中的流体引导到排气管道(350)。

    Motor winding contamination detector and detection
    9.
    发明授权
    Motor winding contamination detector and detection 失效
    电机绕组污染检测器和检测

    公开(公告)号:US06169489A

    公开(公告)日:2001-01-02

    申请号:US09167343

    申请日:1998-10-07

    IPC分类号: G08B2100

    CPC分类号: G01R31/34

    摘要: A method and apparatus for detecting motor contamination utilizes zero-sequence currents in a sensing coil to detect contamination. The detector includes a current transformer comprised of a magnetic core and a sensing coil wound about the core. A processor processes a sub-trip level current from the sensing coil to detect contamination. Three contamination detection methods, which may be used separately or in desired combination, are based on current trends, current leakage, and current clustering. An alarm is triggered when predetermined alarm criteria have been met.

    摘要翻译: 用于检测电机污染的方法和装置利用感测线圈中的零序电流来检测污染物。 该检测器包括一个电流互感器,它包括一个磁芯和一个缠绕在磁芯上的传感线圈。 处理器处理来自感测线圈的次跳闸电平电流以检测污染。 可以单独使用或以期望的组合使用的三种污染检测方法基于当前趋势,电流泄漏和电流聚类。 当达到预定的报警标准时,触发报警。

    Spark suppression of induction type rotors of dynamoelectric machines
    10.
    发明授权
    Spark suppression of induction type rotors of dynamoelectric machines 失效
    电动机感应式转子的火花抑制

    公开(公告)号:US5886443A

    公开(公告)日:1999-03-23

    申请号:US984620

    申请日:1997-12-03

    IPC分类号: H02K17/16 H02K1/00

    CPC分类号: H02K17/165

    摘要: A rotor for an induction motor of the squirrel cage type wherein the rotor bars are exposed to a resilient anti-sparking compound in the rotor slots of the machine. The rotor bars are provided with a longitudinal slot to permit the insertion of the anti-sparking compound after assembly of the squirrel cage rotor. Alternatively, the laminations may be shaped to produce a longitudinal groove in the rotor bar slot to permit the insertion of the anti-sparking compound in the groove so produced. Of course, both the rotor bar and the rotor slot may both be provided with complimentary slots adjacent one another in which the anti-sparking compound may be injected.

    摘要翻译: 用于鼠笼型感应电动机的转子,其中转子杆暴露于机器的转子槽中的弹性防火化合物。 转子杆设置有纵向狭槽,以允许在组装鼠笼式转子之后插入防火化合物。 或者,叠片可以被成形为在转子条槽中产生纵向槽,以允许将防火花化合物插入所产生的槽中。 当然,转子条和转子槽两者都可以设置有彼此相邻的互补槽,其中可以注射防火化合物。