Step switch
    1.
    发明授权
    Step switch 失效
    步进开关

    公开(公告)号:US5523674A

    公开(公告)日:1996-06-04

    申请号:US313205

    申请日:1994-09-27

    IPC分类号: H01H9/00 H01F29/04

    CPC分类号: H01H9/0038 H01H9/0016

    摘要: The invention relates to a load selector for step switches in step transformers with two movable selector contacts. A suitable vacuum switch is located downstream of the first movable selector contact to switch the load current and a suitable switch for switching the compensation current is located downstream of the second movable selector contact. Both of the selector contacts are independently movable in such a way that one of the selector contacts moves slowly and the other selector contact rapidly moves or jumps between positions. The sequence of operation of the selector contacts is independent of the switching direction.

    摘要翻译: PCT No.PCT / EP93 / 01112 Sec。 371日期:1994年9月27日 102(e)日期1994年9月27日PCT提交1993年5月6日PCT公布。 公开号WO94 / 02955 日期:1994年2月3日。本发明涉及一种用于具有两个可移动选择器触点的步进变压器中的步进开关的负载选择器。 一个合适的真空开关位于第一可移动选择器触点的下游以切换负载电流,并且用于切换补偿电流的合适开关位于第二可移动选择器触点的下游。 两个选择器触点可独立地移动,使得一个选择器触点缓慢地移动,另一个选择器触点在位置之间快速移动或跳跃。 选择器触点的操作顺序与开关方向无关。

    Low-pressure mercury vapor discharge lamp, particularly U-shaped
fluorescent lamp, and method of its manufacture
    7.
    发明授权
    Low-pressure mercury vapor discharge lamp, particularly U-shaped fluorescent lamp, and method of its manufacture 失效
    低压汞蒸气放电灯,特别是U形荧光灯及其制造方法

    公开(公告)号:US4481442A

    公开(公告)日:1984-11-06

    申请号:US352720

    申请日:1982-02-26

    摘要: To reduce the operating temperature of a U-shaped or multiple U-bent fluocent lamp, the respective longitudinal and transverse sectional elements of the U-shaped lamp are so related that the outer generating line M.sub.Q of the individual transverse tube sections (4; 20, 21, 22) is substantially straight;the diameter D.sub.LQ in the tube bends (5, 6; 23, 24, 25, 26, 27, 28) at the transition between the longitudinal tube sections (2, 3; 16, 17, 18, 19) and the respective transverse tube sections (4; 20, 21, 22) is larger than the diameter D.sub.Q of the individual transverse tube sections in the middle thereof,and the diameter D.sub.Q of the transverse tube section is at least as large as the diameter D.sub.L of the longitudinal tube sections;a depression or dent can be formed at the center of the outer surface of the transverse tube section, and the corners of the transverse tube section can include additional heat dissipating material to further reduce the operating temperature.

    摘要翻译: 为了降低U形或多个U形弯曲荧光灯的工作温度,U形灯的各个纵向和横向截面元件与各个横向管部分(4; 20)的外部发生线MQ相关 ,21,22)基本上是直的; 在纵管部分(2,3; 16,17,18,19)和相应的横管之间的过渡处,管中的直径DLQ弯曲(5,6; 23,24,25,26,27,28) 部分(4; 20,21,22)大于其中间的各个横管部分的直径DQ,并且横管部分的直径DQ至少与纵管部分的直径DL一样大 ; 可以在横管部分的外表面的中心处形成凹陷或凹陷,并且横管部分的角部可以包括另外的散热材料以进一步降低工作温度。

    On-load tap changer
    8.
    发明授权
    On-load tap changer 有权
    有载分接开关

    公开(公告)号:US09373442B2

    公开(公告)日:2016-06-21

    申请号:US13642141

    申请日:2011-02-23

    IPC分类号: G05F1/14 H01F29/04 H01H9/00

    CPC分类号: H01F29/04 G05F1/14 H01H9/0038

    摘要: The invention relates to an on-load tap changer for step transformers, which has one main current branch and one auxiliary current branch for each of the two winding taps to be switched. In each main current branch and auxiliary current branch, switching is accomplished by means of a vacuum switching tube. According to the invention, an additional mechanical contact is provided in each of the main current branches and in each of the auxiliary current branches between the respective winding tap to which said branch is electrically connected and the respective vacuum switching tube in said branch. Said mechanical contacts are switched in such a way that the vacuum switching tubes in the main current branch and the auxiliary current branch of the unconnected winding tap can be galvanically isolated from the unconnected winding tap.

    摘要翻译: 本发明涉及一种用于阶跃式变压器的有载抽头变换器,其具有用于要切换的两个绕组抽头中的每一个的一个主电流分支和一个辅助电流分支。 在每个主电流分支和辅助电流分支中,通过真空开关管实现切换。 根据本发明,在每个主电流分支中以及在所述分支电连接的相应绕组抽头和所述分支中的相应真空开关管之间的每个辅助电流分支中提供附加的机械接触。 所述机械触点的切换方式使得主电流分支中的真空开关管和未连接的绕组抽头的辅助电流分支可以与未连接的绕组丝锥电流隔离。

    Load transfer switch for a tap changer
    10.
    发明授权
    Load transfer switch for a tap changer 有权
    分接开关的负载转换开关

    公开(公告)号:US08927886B2

    公开(公告)日:2015-01-06

    申请号:US13642130

    申请日:2011-02-26

    IPC分类号: H01H19/00 H01H21/00 H01H9/00

    CPC分类号: H01H9/0016 H01H9/0027

    摘要: The present invention relates to a load transfer switch for a tap changer, comprising permanent main contacts that switch powerlessly for each phase. The general inventive concept lies in connecting the fixed permanent main contacts of side A or B of the load transfer switch by means of a movable rail-shaped permanent main contact that establishes an electrical connection to the corresponding permanent main contacts of the load line only in the end positions of the movable rail-shaped permanent main contact and in addition only provides for a single deflection for actuation, which connects in a purely compressive manner the plurality of contact fins of the corresponding fixed permanent main contact, which contact fins are connected in a resilient, articulated manner.

    摘要翻译: 本发明涉及一种用于分接开关的负载转移开关,包括用于每相的无功开关的永久主触点。 总体发明构思在于通过可移动的轨道式永久主接触连接负载转移开关的侧面A或B的固定永久主触点,该活动导轨永久主触头仅在负载线的相应的永久主触头上建立电连接 可移动的轨道式永久性主接触件的端部位置,并且仅仅提供用于致动的单个偏转,其以纯粹的压缩方式连接相应的固定永久主接触件的接触翅片连接的多个接触翅片 弹性,铰链式。