公开(公告)号：US3798395A

公开(公告)日：1974-03-19

申请号：US3798395D

申请日：1972-11-06

Applicant: ASEA AB

Inventor： JOHANSSON F ,  NORMAN S ,  FLYTSTROM E

IPC: H01F29/04 ,  H01H3/30 ,  H01H3/44 ,  H01H9/00 ,  H01H3/00

CPC classification number: H01H3/30 ,  H01H3/44 ,  H01H9/0027 ,  H01H2003/3078

Abstract: A tap changer for transformers includes a selector switch and a diverter switch. The drive device for the switch includes a gear segment which drives a gear wheel mounted on a shaft which gear wheel also carries a slewing bracket on which is pivoted on a pivot pin a link which is connected to one end of a spring, the other end of which is stationary. The gear wheel has a notch extending partly around its periphery, into which the pivot pin extends so that the gear wheel can turn freely through a limited distance without affecting the spring. On the same shaft is mounted a fly wheel which has an arcuate slot into which the pivot pin extends. A braking arrangement is provided which holds the fly wheel against movement until it is forceably turned by the pivot pin. The fly wheel carries a projection which engages in a Maltese cross arrangement for shifting the contacts of the diverter switch.

Abstract translation: 变压器的分接开关包括选择开关和切换开关。 用于开关的驱动装置包括驱动安装在轴上的齿轮的齿轮段，该齿轮还承载回转支架，转轴支架在枢轴销上枢转，该连杆连接到弹簧的一端，另一端 其中是静止的。 齿轮具有部分地围绕其周边延伸的凹口，枢轴销延伸到该凹口中，使得齿轮可以在有限距离内自由转动而不影响弹簧。 在相同的轴上安装有具有弓形狭槽的飞轮，枢轴销延伸到其中。 提供制动装置，其保持飞轮防止运动，直到其被枢轴销可靠地转动。 飞轮带有突出部，该突起接合马耳他交叉布置，用于移动切换开关的触点。