公开(公告)号：US3824355A

公开(公告)日：1974-07-16

申请号：US36709873

申请日：1973-06-05

Applicant: ASEA AB

Inventor： NORMAN S ,  SYREN J ,  ZETTERLUND U

IPC: H01H1/42 ,  H01H15/08 ,  H01H15/06

CPC classification number: H01H15/08 ,  H01H1/42 ,  H01H9/0027

Abstract: A de-energized tap changer for transformers comprises a frame of insulating material, a slide which carries movable contacts, the slide being displaceable in the frame, and a drive for the slide. The frame of the tap changer is manufactured in one piece and consists of a terminal bar with attachment means for connections from the transformer windings, a carrier member carrying the drive, and cross-bars connecting the terminal bar and the carrier member. The movable slide is displaceable in grooves in the cross-bars and can be inserted in the grooves only when situated outside its ordinary working area.

Abstract translation: 用于变压器的断电分接开关包括绝缘材料框架，承载可移动触点的滑块，滑架可移动到框架中，以及用于滑块的驱动器。 分接开关的框架制造成一体，由具有用于从变压器绕组连接的附接装置的端子条，承载驱动器的承载构件和连接端子条和承载构件的横杆组成。 可移动的滑块可以在横杆中的槽中移动，并且仅当位于其普通工作区域的外部时才能插入槽中。

公开(公告)号：US3783427A

公开(公告)日：1974-01-01

申请号：US3783427D

申请日：1971-11-23

Applicant: ASEA AB

Inventor： ZETTERLUND U

IPC: H01F27/32 ,  H01F41/12 ,  H01F41/06

CPC classification number: H01F27/323 ,  H01F41/122

Abstract: In widing a conductor winding for electrical apparatus on a support, the conductor and an insulated tape of greater width than the conductor are simultaneously wound on the support. The tape is wound with a greater pitch than the pitch of the conductor so that the tape reaches the end of the layer sooner than the conductor. The tape is then wound with zero pitch until the conductor reaches the end of the layer, thus forming edge supports for the winding of twice the thickness of the conductor. The pitch of the tape on the next layer is abruptly increased from zero to a value greater than the pitch of the conductor, and from an intermediate point in the layer at which the conductor overlies the tape, the pitch of the tape is decreased so as to build up a body of insulation layer of greater thickness at the end of the layer.

Abstract translation: 在支撑体上的电气设备的导体绕组中，导体和宽度大于导体的绝缘带同时缠绕在支架上。 磁带以比导体的间距更大的间距缠绕，使得磁带比导体早到达层的端部。 然后以零间距卷绕带，直到导体到达层的端部，从而形成用于缠绕导体厚度的两倍的边缘支撑件。 下一层上的带的间距从零突然增加到大于导体的间距的值，并且从导体覆盖在带上的层的中间点，带的间距减小，从而 在层的末端建立一个更大厚度的绝缘层。