公开(公告)号：US20150270699A1

公开(公告)日：2015-09-24

申请号：US14733568

申请日：2015-06-08

Applicant: ABB Technology AG

Inventor： Jens TEPPER ,  Abdelbahi TAMZARTI ,  Nils LEENEN ,  Stefan STAUDINGER

IPC: H02H7/04 ,  H02H3/08 ,  H02H3/093 ,  H02H1/00

CPC classification number: H02H7/04 ,  H01F27/402 ,  H02H1/0023 ,  H02H3/083 ,  H02H3/0935 ,  H02H7/042

Abstract: An exemplary transformer protection system including a protective housing having a transformer which is arranged in the protective housing, a transformer core, and at least one primary-side electrical winding and a secondary-side electrical winding which is magnetically coupled to the primary-side electrical winding. The protection system also includes at least one detection apparatus for a measurement variable from which the occurrence of an interference arc within the protective housing can be derived, and an evaluation unit for generating a fault signal from the measurement variable of the at least one detection apparatus in the case of an interference arc. Further, the protection system includes at least one rapid-earthing apparatus for at least one of the electrical windings which is intended to be activated by the fault signal, wherein the rapid-earthing apparatus is designed in such a way that effective electrical earthing immediately after activation of the fault signal is ensured.

Abstract translation: 一种示例性的变压器保护系统，包括具有布置在保护壳体中的变压器的保护壳体，变压器铁芯以及至少一个初级侧电线圈和次级侧电力绕组，其被磁耦合到初级侧电气 绕组。 保护系统还包括至少一个用于测量变量的检测装置，在该测量变量中可以导出保护壳体内的干扰电弧的出现，以及用于根据至少一个检测装置的测量变量产生故障信号的评估单元 在干扰电弧的情况下。 此外，保护系统包括用于至少一个电绕组的快速接地装置，该快速接地装置旨在由故障信号激活，其中快速接地装置被设计成使得紧接着的有效电接地 确保故障信号的激活。