公开(公告)号：US20160189858A1

公开(公告)日：2016-06-30

申请号：US14652692

申请日：2013-11-19

Applicant: ABB Research Ltd.

Inventor： Dierk Bormann ,  Lars Liljestrand ,  Martin Carlen ,  Thorsten Steinmetz ,  Philipp Buttgebach ,  Jens Tepper

IPC: H01F27/34 ,  H01F27/29

CPC classification number: H01F27/34 ,  H01F27/29 ,  H01F27/343 ,  H01F27/40

Abstract: A transformer arrangement and transformer for mitigating transient voltage oscillations. The transformer included a transformer core enclosing at least one core leg. A winding is wound around one of the at least one core leg. The winding extends from a first winding terminal to a second winding terminal and includes a first winding section along a first conductor extending from the first winding terminal to a first intermediate end point, and a second winding section along a second conductor extending from a second intermediate end point to the second winding terminal. The transformer arrangement further includes an external passive electric component connected between the first intermediate end point and either the second intermediate end point or the second winding terminal arranged to decrease an effective difference between capacitive and inductive voltage distributions between the intermediate end points such that transient voltage oscillations in the winding are mitigated.

Abstract translation: 用于减轻瞬态电压振荡的变压器布置和变压器。 变压器包括一个包围至少一个铁芯支脚的变压器铁芯。 绕组围绕至少一个芯腿中的一个缠绕。 绕组从第一绕组端子延伸到第二绕组端子，并且包括沿着从第一绕组端子延伸到第一中间端点的第一导体的第一绕组部分和沿着从第二中间件延伸的第二导体的第二绕组部分 终点到第二绕组端子。 变压器布置还包括连接在第一中间端点与第二中间端点或第二绕组端子之间的外部无源电气部件，其被布置成减小中间端点之间的电容和感应电压分布之间的有效差异，使得瞬态电压 绕组中的振荡得到缓解。